%'civ': function associated with the interface 'civ.fig' for PIV, spline interpolation and stereo PIV (patch)   
%------------------------------------------------------------------------
%  provides an interface for the software CIVx
% function varargout = civ(varargin)
% provides an interface for the software CIVx
%
%AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
%  Copyright Joel Sommeria, 2008, LEGI / CNRS-UJF-INPG, sommeria@coriolis-legi.org.
%AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
%     This file is part of the toolbox UVMAT. 
% 
%     UVMAT is free software; you can redistribute it and/or modify
%     it under the terms of the GNU General Public License as published by
%     the Free Software Foundation; either version 2 of the License, or
%     (at your option) any later version.
% 
%     UVMAT is distributed in the hope that it will be useful,
%     but WITHOUT ANY WARRANTY; without even the implied warranty of
%     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
%     GNU General Public License (file UVMAT/COPYING.txt) for more details.
%AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
function varargout = civ(varargin)

% Last Modified by GUIDE v2.5 10-Jan-2010 22:04:45
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @civ_OpeningFcn, ...
                   'gui_OutputFcn',  @civ_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin && ischar(varargin{1})
    gui_State.gui_Callback = str2func(varargin{1});
end

if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
    gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT

%------------------------------------------------------------------------
% --- Executes just before civ is made visible.
function civ_OpeningFcn(hObject, eventdata, handles, varargin)
%------------------------------------------------------------------------
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to civ (see VARARGIN)
global test_batch patch_new_exe%=1 if patch processing available
%filebase: root name 
%nom_type: nomencalture used ('png_old','_i_j'...)
%list of field numbers to process
%subdir: subdirectory of the opened netcdf file 
%ind_opening: operation number advised for beginning (1=civ1,2=fix1,3=patch1,4=civ2,5=fix2,6=patch2),
%ind_a_opening ind_b_opening chosen pair from the opened netcdf file
% Choose default command line output for civ
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);

%default initial parameters
filebase=''; % root file name ('filebase'.civ)
nom_type=[]; % nomenclature type
ext=[];
testall=0; 
browse=[];

%load the initial parameters if the interface is started from uvmat 
if ~isempty(varargin)% the interface is opened from uvmat
    varcell=varargin{1};
    filebase=varcell{1};
    nom_type_read=varcell{2};
    num1=varcell{3};
    num2=varcell{4};
    num_a=varcell{5};
    num_b=varcell{6};
    subdir=varcell{7};
    ind_opening=varcell{8};
    ext=varcell{11};
else
    num1=1; % set of field i numbers
    num2=2; % set of field i numbers
    num_a=1; % set of field j numbers (fields a)
    num_b=1; % second set of field j numbers (fields b)
    subdir='A'; % subdir for the netcdf result files
    ind_opening=1; % proposed operation number (1=civ1,2=fix1,3=patch1,4=civ2,5=fix2,6=patch2)  
end

if exist('ext','var') && length(ext)>1 && (~isempty(imformats(ext(2:end)))||...
                       isequal(lower(ext),'.avi'));%if an image file has been opened by uvmat
        set(handles.ext_ima,'String',ext)
        if exist('nom_type_read','var')
            browse.nom_type_ima=nom_type_read; % the image nomenclature is stored
        end
elseif isequal(ext,'.nc')
    if exist('nom_type_read','var')
        browse.nom_type_nc=nom_type_read;% the netcdf  nomenclature is stored
    end
end
set(handles.displ_filebase,'String',filebase);
set(handles.ImaDoc,'UserData',testall);
set(handles.ImaDoc,'String',ext)

%read names of the .exe file to adjust the interface according to
%available prog
%read names of the .exe file
path_uvmat=which('uvmat');% check the path detected for source file uvmat
path_UVMAT=fileparts(path_uvmat); %path to UVMAT
if isunix
    syst='LINUX';
    %fid = fopen(fullfile(path_UVMAT,'PARAM_LINUX.txt'),'r');%open the file with civ binary names
    xmlfile=fullfile(path_UVMAT,'PARAM_LINUX.xml');
    display(xmlfile)
    if exist(xmlfile,'file')
        t=xmltree(xmlfile);
        sparam=convert(t);
    end
else
    syst='WIN';
    xmlfile=fullfile(path_UVMAT,'PARAM_WIN.xml');
    if exist(xmlfile,'file')
        t=xmltree(xmlfile);
        sparam=convert(t);
    end
end
display(syst)  
patch_new_exe='';
% todo_patch='';
sge=0;

if isfield(sparam,'PatchNew_exe')
    patch_new_exe=sparam.PatchNew_exe;
end
if isfield(sparam,'Todo_path')
    todo_path=sparam.Todo_path;
end
if isfield(sparam,'SGE')
    sge=str2num(sparam.SGE);
end   
name_todo=fullfile(todo_path,'TODO.txt');
display(name_todo)
test_batch=1;
if ~sge
    if isequal(todo_path,'') || isequal(todo_path,[])
        display(['no batch distributed processing available:file path TODO.txt not defined in UVMAT/PARAM_' syst])
        test_batch=0;
    end
    if exist(name_todo,'file')~=2 
        msgbox_uvmat('WARNING',['no batch distributed processing available, queue file ' name_todo ' absent']);
      %  test_batch=0;  % Problems to detect file on linux/nfs filesystems
    end
end
if test_batch==0
    set(handles.BATCH,'BackgroundColor',[0.831 0.816 0.784])% put the BATCH button in grey (unactivated)
end
set(handles.subdir_civ1,'String',subdir)%default subdir on which uvmat was working
set(handles.subdir_civ2,'String',subdir)%default subdir on which uvmat was working

%initiate advised operations
if isequal(ind_opening,[])
    ind_opening=1; % default
end
% set default operation options
    enable_civ1(handles,'off')
    enable_civ2(handles,'off')
    enable_pair1(handles,'on')
    enable_fix1(handles,'off')
    desable_patch1(handles)
    desable_fix2(handles)
    desable_patch2(handles)
    set(handles.CIV1,'Value',0)
    set(handles.FIX1,'Value',0)
    set(handles.PATCH1,'Value',0)
    set(handles.CIV2,'Value',0)
    set(handles.FIX2,'Value',0)
    set(handles.PATCH2,'Value',0)
    set(handles.frame_subdirciv2,'BackgroundColor',[0.831 0.816 0.784])
if isequal(ind_opening,1)
    set(handles.CIV1,'Value',1)
    enable_civ1(handles,'on')
elseif isequal(ind_opening,2)
    set(handles.FIX1,'Value',1)
    enable_fix1(handles,'on')
elseif isequal(ind_opening,3)
    set(handles.PATCH1,'Value',1)
    enable_patch1(handles)
elseif isequal(ind_opening,4)
    set(handles.CIV2,'Value',1)
    enable_civ2(handles,1)
elseif isequal(ind_opening,5)
    set(handles.FIX2,'Value',1)
    enable_fix2(handles)
     set(handles.frame_subdirciv2,'BackgroundColor',[1 1 0])
     set(handles.list_pair_civ2,'Enable','On')
     set(handles.list_pair_civ2,'Enable','On')
     enable_pair1(handles,'off')
elseif isequal(ind_opening,6)
    set(handles.PATCH2,'Value',1)
    enable_patch2(handles)
    set(handles.frame_subdirciv2,'BackgroundColor',[1 1 0])
    set(handles.list_pair_civ2,'Enable','On')
    enable_pair1(handles,'off')
end

% set the range of fields (1:1 by default) and selected pair
if isempty(num2)||isequal(num2,num1)
    num_ref_i=num1;
else
    num_ref_i=floor((num1+num2)/2);
    browse.incr_pair(1)=num2-num1;
    browse.incr_pair(2)=0;
end
if isempty(num_b)||isequal(num_a,num_b)
    if isempty(num_a)
        num_ref_j=1;
    else
        num_ref_j=num_a;
    end
else
    num_ref_j=floor((num_a+num_b)/2);
    browse.incr_pair(2)=num_b-num_a; 
end
set(handles.first_i,'String',num2str(num_ref_i));
set(handles.last_i,'String',num2str(num_ref_i));
set(handles.first_j,'String',num2str(num_ref_j));
set(handles.last_j,'String',num2str(num_ref_j));
set(handles.ref_i,'String',num2str(num_ref_i));
set(handles.ref_j,'String',num2str(num_ref_j));
set(handles.browse_root,'UserData',browse);
if ~isempty(varargin)% the interface is opened from uvmat
    displ_filebase_Callback(hObject, eventdata, handles); 
end

set(handles.waitbar_1,'Position',[0.946 0.877 0.03 0.001])
set(handles.waitbar_patch1,'Position',[0.946 0.626 0.03 0.001])
set(handles.waitbar_civ2,'Position',[0.946 0.406 0.03 0.001])
set(handles.waitbar_patch2,'Position',[0.946 0.187 0.03 0.001])

%------------------------------------------------------------------------
% --- Outputs from this function are returned to the command line.
function varargout = civ_OutputFcn(hObject, eventdata, handles)
%------------------------------------------------------------------------
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% Get default command line output from handles structure
varargout{1} = handles.output;

%------------------------------------------------------------------------
% --- Executes on button press in browse_root.
function browse_root_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
%get the input file properties
filebase=get(handles.displ_filebase,'String');
oldfile=''; %default
if isempty(filebase)|| isequal(filebase,'')%loads the previously stored file name and set it as default in the file_input box
     dir_perso=prefdir;
     profil_perso=fullfile(dir_perso,'uvmat_perso.mat');
     display(profil_perso)
     if exist(profil_perso,'file')
          h=load (profil_perso);
         if isfield(h,'filebase')&& ischar(h.filebase)
                 oldfile=h.filebase;
         end
         if isfield(h,'RootPath') && ischar(h.RootPath)
                 oldfile=h.RootPath;
         end
     end
 else
     oldfile=filebase;
 end
testall=get(handles.ImaDoc,'UserData');
ind_opening=1;%default
browse.incr_pair=[0 0]; %default
if testall 
    menu={'*.*', 'All Files (*.*)'; '*.xml; *.avi;*.AVI;*.nc','(*.xml,*.avi,*.nc)'; ...
        '*.xml', '.xml files';'*.avi;*.AVI', '.avi files';'*.nc','.nc files'};
else % menu selecting only .civ or .avi files
menu={'*.xml;*.avi;*.AVI;*.nc','(*.xml,*.avi,*.nc)'; ...
        '*.xml', '.xml files';'*.avi;*.AVI', '.avi files';'*.nc', '.nc files';...
        '*.*', 'All Files (*.*)'};
end
[FileName, PathName, filtindex] = uigetfile( menu, 'Pick a file',oldfile);
fileinput=[PathName FileName];%complete file name 
sizf=size(fileinput);
if (~ischar(fileinput)||~isequal(sizf(1),1)),return;end %stop if fileinput not a character string
[path,name,ext]=fileparts(fileinput);
testeditxml=0;
if isequal(ext,'.xml')
    testeditxml=1;
    t_browse=xmltree(fileinput);
    head_element=get(t_browse,1);
    if isfield(head_element,'name')& isequal(head_element.name,'ImaDoc')
        testeditxml=0;
    end
end
if testeditxml==1 | isequal(ext,'.xls')
   heditxml=editxml({fileinput});
   set(heditxml,'Tag','browser')
   waitfor(heditxml,'Tag','idle')
   if ~ishandle(heditxml)
       return
   end
   attr=findobj(get(heditxml,'children'),'Tag','CurrentAttributes');
   set(handles.browse,'UserData',fileinput)% store for future opening with browser
   fileinput=get(attr,'UserData');
   if ~exist(fileinput,'file')
       return
   end
end
[RootPath,RootFile,field_count,str2,str_a,str_b,ext,nom_type,subdir]=name2display(fileinput);
filebase=fullfile(RootPath,RootFile);
if isequal(get(handles.compare,'Value'),1)
    browse=[];%initialisation
else
    browse=get(handles.browse_root,'UserData');
end
if length(ext)>1 & (~isempty(imformats(ext([2:end])))|...
                       isequal(ext,'.avi')|isequal(ext,'.AVI'));%if an image file has been opened by uvmat
    set(handles.ext_ima,'String',ext)
    browse.nom_type_ima=nom_type;
    browse.field_count=str2num(field_count);
    A=imread(fileinput);
    npxy=size(A);
    set(handles.ext_ima,'UserData',npxy)
end
set(handles.ImaDoc,'String',ext);

%%%%% read the state of the selected netcdf file to advise default operation
if isequal(ext,'.nc')
    browse.nom_type_nc=nom_type;
    ind_opening=2;% propose 'fix' as the default option    
    Data=nc2struct(fileinput,[]);
    if isfield(Data,'absolut_time_T0')%test for civx files        
        if isfield(Data,'fix') && isequal(Data.fix,1)
            ind_opening=3;
        end
        if isfield(Data,'patch') && isequal(Data.patch,1)
            ind_opening=4;
        end
        if isfield(Data,'civ2') && isequal(Data.civ2,1)
            ind_opening=5;
        end
        if isfield(Data,'fix2') && isequal(Data.fix2,1)
            ind_opening=6;
        end
        testciv=1; %TO SUPPRESS WITH NEW VERSION OF CIVX
    else
        ind_opening=3; %GUI used only for patch 
        testciv=0;
    end
    set(handles.subdir_civ1,'String',subdir);%set the default subdir directories for installing the .nc results
    set(handles.subdir_civ2,'String',subdir);
    browse.testciv=testciv;
    browse.ind_opening=ind_opening;
end
set(handles.displ_filebase,'String',filebase);
set(handles.ImaDoc,'String',ext);
if ~isempty(str2num(field_count))
    ref_i=str2num(field_count);
    if ~isempty(str2num(str2))
        ref_i=floor((ref_i+str2num(str2))/2);% reference image number corresponding to the file
        browse.incr_pair(1)=str2num(str2)-str2num(field_count);
        browse.incr_pair(2)=0;
    end
    set(handles.first_i,'String',num2str(ref_i));
    set(handles.last_i,'String',num2str(ref_i));
    set(handles.ref_i,'String',num2str(ref_i)); 
end
if isempty(str2num(str_a))
    set(handles.ref_j,'String','1');
else
    ref_j=str2num(str_a);
    if ~isempty(str2num(str_b))
        ref_j=floor((str2num(str_a)+str2num(str_b))/2);
        browse.incr_pair(2)=str2num(str_b)-str2num(str_a); 
    end
    set(handles.first_j,'String',num2str(ref_j));
    set(handles.last_j,'String',num2str(ref_j));
    set(handles.ref_j,'String',num2str(ref_j)); 
end

% set default operation options
enable_civ1(handles,'off')
enable_civ2(handles,'off')
enable_pair1(handles,'on')
enable_fix1(handles,'off')
desable_patch1(handles)
desable_fix2(handles)
desable_patch2(handles)
set(handles.CIV1,'Value',0)
set(handles.FIX1,'Value',0)
set(handles.PATCH1,'Value',0)
set(handles.CIV2,'Value',0)
set(handles.FIX2,'Value',0)
set(handles.PATCH2,'Value',0)
set(handles.frame_subdirciv2,'BackgroundColor',[0.831 0.816 0.784])
if isequal(ind_opening,1)
    set(handles.CIV1,'Value',1)
    enable_civ1(handles,'on')
elseif isequal(ind_opening,2)
    set(handles.FIX1,'Value',1)
    enable_fix1(handles,'on')
elseif isequal(ind_opening,3)
    set(handles.PATCH1,'Value',1)
    enable_patch1(handles)
elseif isequal(ind_opening,4)
    set(handles.CIV2,'Value',1)
    enable_civ2(handles,1)
elseif isequal(ind_opening,5)
    enable_pair1(handles,'off')
    set(handles.FIX2,'Value',1)
    enable_fix2(handles)
     set(handles.frame_subdirciv2,'BackgroundColor',[1 1 0])
     set(handles.list_pair_civ2,'Enable','On')
     set(handles.list_pair_civ2,'Enable','On')
elseif isequal(ind_opening,6)
    enable_pair1(handles,'off')
    set(handles.PATCH2,'Value',1)
    enable_patch2(handles)
    set(handles.frame_subdirciv2,'BackgroundColor',[1 1 0])
    set(handles.list_pair_civ2,'Enable','On')
end
set(handles.browse_root,'UserData',browse);% store information from browser
testall=isequal(menu(filtindex,1),{'*.*'});
set(handles.ImaDoc,'UserData',testall);

displ_filebase_Callback(hObject, eventdata, handles);

%------------------------------------------------------------------------
function ImaDoc_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
displ_filebase_Callback(hObject, eventdata, handles)

%------------------------------------------------------------------------
%function activated when a new filebase (image series) is introduced
function displ_filebase_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
global test_batch
set(handles.compare,'Visible','on')
ext_ima=get(handles.ext_ima,'String'); 
nom_type_ima=[];%default
field_count=1;%default
nom_type_nc=[];
% npx=[];%default 
% npy=[];
time=[];
TimeUnit=[]; %default
CoordUnit=[];%default
pxcmx_search=[];%default
pxcmy_search=[];%default
filebase=get(handles.displ_filebase,'String');

ext=get(handles.ImaDoc,'String');
browse=get(handles.browse_root,'UserData');%default
if ~isempty(browse) 
    if isfield(browse,'nom_type_ima')
        nom_type_ima=browse.nom_type_ima;% get an image nomenclature type already determined by an input image name
    end
    if isfield(browse,'field_count')
        field_count=browse.field_count;% get an image index type already determined by an input file
    end
end

%default first_i and j and increments
first_i=str2num(get(handles.first_i,'String'));%value possibly set by uvmat_Opening
if isempty(first_i)|| first_i < 1
    first_i=1; %default first_i
end
last_i=str2num(get(handles.last_i,'String'));
if isempty(last_i)|| last_i < first_i
    last_i=first_i;  %default last_i
end
first_j=str2num(get(handles.first_j,'String'));
if isempty(first_j)|| first_j < 1
    first_j=1; %default first_j
end
last_j=str2num(get(handles.last_j,'String'));
if isempty(last_j)|| last_j < first_j
    last_j=first_j; %default last_j
end
incr_i=str2num(get(handles.incr_i,'String'));
if isempty(incr_i) || incr_i < 1;
    set(handles.incr_i,'String','1') %default incr_i
end
incr_j=str2num(get(handles.incr_j,'String'));
if isempty(incr_j) || incr_j < 1;
    set(handles.incr_j,'String','1') %default incr_j
end
dt=[];%default
testmode=0;%default
nbfield=[]; %default
nburst=[];%default
pxcmx=1;
pxcmy=1; 

 %look for an image documentation file
if ~isequal(ext,'.xml') && ~isequal(ext,'.civ')&& ~isequal(ext,'.avi')&& ~isequal(ext,'.AVI')
    if exist([filebase '.xml'],'file')
         ext='.xml';
    elseif exist([filebase '.civxml'],'file')
         ext='.civxml';
    elseif exist([filebase '.civ'],'file')
         ext='.civ';
    elseif exist([filebase '.avi'],'file') 
         ext='.avi';
    elseif exist([filebase '.AVI'],'file')
         ext='.AVI';
    end
    set(handles.ImaDoc,'String',ext)
end

%%%%%%%%   read image documentation file  %%%%%%%%%%%%%%%%%%%%%%%%%%%
    mode=''; %default
    set(handles.ImaDoc,'BackgroundColor',[1 1 0])
    drawnow
    %read the image documentation file if found
if isequal(ext,'.civxml') || isequal(ext,'.xml')|| isequal(ext,'.civ')
    set(handles.ref_i,'Visible','On')%use a reference index
    set(handles.ref_j,'Visible','On')
    set(handles.dt,'Visible','Off')
    set(handles.dt_text,'String','')
elseif isequal(ext,'.avi') || isequal(ext,'.AVI')
    set(handles.ref_j,'Visible','Off')
    set(handles.dt,'Visible','Off')
    set(handles.dt_text,'String','ref. ind.')
else
    set(handles.ref_i,'Visible','Off')
    set(handles.ref_j,'Visible','Off')
    set(handles.dt,'Visible','On')
    set(handles.dt_text,'String','dt(ms)=')
end
testima_xml=0;
if isequal(ext,'.civxml')%TO ABANDON
    [nbfield,nburst,time]=read_civxml([filebase '.civxml']);
    mode='pair j1-j2';
    if isempty(nom_type_ima)% dtermine types by default if not already selected by browser or uvmat
            nom_type_ima='_i_j';
    end
elseif isequal(ext,'.xml')
    [XmlData,warntext]=imadoc2struct([filebase '.xml']);
    if isfield(XmlData,'Time')
        time=XmlData.Time;
        nbfield=size(XmlData.Time,1);
        nburst=size(XmlData.Time,2);
    end
    ext_ima_read=[];
    nom_type_read=[];
    if isfield(XmlData,'Heading')&&isfield(XmlData.Heading','ImageName')&&ischar(XmlData.Heading.ImageName)% get image nom type and extension from the xml file
        [PP,FF,fc,str2,str_a,str_b,ext_ima_read,nom_type_read]=name2display(XmlData.Heading.ImageName);
        fullname=fullfile(fileparts(filebase),XmlData.Heading.ImageName); %full name (including path) of the first image defined by the xmle file, 
        if exist(fullname,'file')
            testima_xml=1;
        else
            msgbox_uvmat('WARNING',['FirstImage ' fullname ' defined in the xml file does not exist'])
        end
    end
    if isfield(XmlData,'Camera')
        if isfield(XmlData.Camera,'TimeUnit')
            TimeUnit=XmlData.Camera.TimeUnit;
        end
        if isfield(XmlData.Camera,'ImageSize')
           ImageSize=XmlData.Camera.ImageSize;
           if ~isempty(ImageSize)&& ~isempty(ImageSize)
               xindex=findstr(ImageSize,'x');
               if length(xindex)>=2
                    npx=str2num(ImageSize(1:xindex(1)-1));
                    npy=str2num(ImageSize(xindex(1)+1:xindex(2)-1));
               end
           end
       end
    end
    pxcmx_search=1;
    pxcmy_search=1;
    if isfield(XmlData,'GeometryCalib')
        tsai=XmlData.GeometryCalib;
        if isfield(tsai,'f') & isfield(tsai,'Tz') & isfield(tsai,'dpx') & isfield(tsai,'dpy')& isfield(tsai,'R') 
             rot2D=tsai.R([1:2],[1,2]);
             pxcmx_search=tsai.f * sqrt(det(rot2D))/(tsai.Tz*tsai.dpx);
             pxcmy_search=tsai.f * sqrt(det(rot2D))/(tsai.Tz*tsai.dpy);           
        end
        if isfield(tsai,'CoordUnit') 
             CoordUnit=tsai.CoordUnit;
        end
    end                
    if ~isempty(ext_ima_read) && ~isempty(nom_type_read)
        if isempty(ext_ima)
             ext_ima=ext_ima_read;% define image extension from the xml file if an image has not been opened previously
        else   %keep the image extension           
            if  ~strcmp(ext_ima_read,ext_ima)
              msgbox_uvmat('WARNING',['FirtsImage extension ' ext_ima_read ' announced in the xml file inconsistent with the selected image'])
            end
        end
        nom_type_ima=nom_type_read;
    end
elseif isequal(ext,'.civ')% case of .civ image documentation file
        [error,time,TimeUnit,mode,npx,npy]=read_imatext([filebase '.civ']);
        if error==2, msgbox_uvmat('WARNING',['no file ' filebase '.civ']);
        elseif error==1, msgbox_uvmat('WARNING','inconsistent number of fields in the .civ file');
        end
%         ext_ima='.png';
        nom_type_ima='png_old';       
elseif isequal(lower(ext),'.avi') 
        nom_type_ima='*';
        ext_ima=ext;
        set(handles.mode,'String',{'series(Di)'})
        dt=0.04;%default
        if exist([filebase ext],'file')==2
            info=aviinfo([filebase ext]);%read infos on the avi movie
            dt=1/info.FramesPerSecond;%time interval between successive frames
            nbfield=info.NumFrames;%number of frames
        end
        time=(dt*[0:nbfield-1])';%list of image times   
        set(handles.dt,'String',num2str(dt*1000));%store the time interval between successive images
end
if isempty(time)
    set(handles.ImaDoc,'String',''); %xml file not used for timing
end
set(handles.ImaDoc,'BackgroundColor',[1 1 1])

%get the imabe nomenclature type if not defiend by the input file nor by the xml file
if isempty(nom_type_ima)
    %look for double image series '_i_j'
    dirima=dir([filebase '_' num2str(first_i) '_' num2str(first_j) '.*']);
    if isempty(dirima)
       % look for images series  with sub marker '_'
       dirima=dir([filebase '_*' num2str(first_i) '.*']);
       if isempty(dirima)
          % look for other images series 
          dirima=dir([filebase '*' num2str(first_i) '.*']);
          if ~isempty(dirima)
              [pp,ff,fc,str2,str_a,str_b,ext_ima,nom_type_ima]=name2display(dirima(1).name);
          end
       else
           [pp,ff,fc,str2,str_a,str_b,ext_ima,nom_type_ima]=name2display(dirima(1).name);
       end
    else
       [pp,ff,fc,str2,str_a,str_b,ext_ima,nom_type_ima]=name2display(dirima(1).name);
    end
end   
    
% no image documentation file found: look for a series of existing images or .nc files 
if isempty(time) && ~isequal(ext,'.nc') 
    subdir=get(handles.subdir_civ1,'String');
    incr_pair=[0 0];%default
    if isfield(browse,'incr_pair')
            incr_pair=browse.incr_pair;
    end
    nbdetect=0;%test of detected images
    field_i=field_count;
    idetect=1;
    while idetect==1 %look for the maximum file number in the series
            field_i=field_i+1;
            imagename=name_generator(filebase,field_i,1,ext_ima,nom_type_ima);
            if strcmp(nom_type_ima,'none')||strcmp(nom_type_ima,'')
               idetect=0; %stop if the same image is repeated (if nom_type='none')
               nbdetect=1;
            else
                idetect=(exist(imagename,'file')==2);
            end
            %SEE CASE OF NETCDF FILES
            nbdetect=nbdetect+(exist(imagename,'file')==2);
    end
    nb_field=field_i;% last detected field number
    field_i=field_count;%look for the minimum file number in the series
    idetect=1;
    while idetect==1 
                field_i=field_i-1;
                imagename=name_generator(filebase,field_i,1,ext_ima,nom_type_ima);
                if isequal(nom_type_ima,'none')||strcmp(nom_type_ima,'')
                    idetect=0; %stop if the same image is repeated (if nom_type='none')
                    nbdetect=1;
                else
                    idetect=(exist(imagename,'file')==2);
                end
                nbdetect=nbdetect+idetect;
    end
    first_i=max(field_i+1,1);
        %determine the set of times and possible intervals for CIV
    dt=(1/1000)*str2num(get(handles.dt,'String'));
    time=(dt*[0:nb_field-1])';
    set(handles.mode,'String',{'series(Di)'})
end
if isequal(nom_type_ima,'none')% no file numbering used
  first_i=1; 
  last_i=1;
   first_j=1;
  last_j=1;
end
if exist('time','var')
    if size(time,1)+size(time,2)>=3 % if there are at least two time values to define dt
        nbfield=size(time,1);
        nbfield2=size(time,2);
        set(handles.displ_filebase,'UserData',time); %store the set of times
        if isempty(TimeUnit)
            set(handles.dt_unit,'String','dt in e-03');
            set(handles.TimeUnit,'String','');
        else
            set(handles.dt_unit,'String',['dt in m' TimeUnit]);
            set(handles.TimeUnit,'String',TimeUnit);
        end
        set(handles.nb_field,'String',num2str(nbfield));
        set(handles.nb_field2,'String',num2str(nbfield2));
    end
end
set(handles.CoordUnit,'String',[CoordUnit '/'])
set(handles.calcul_search,'UserData',[pxcmx_search pxcmy_search]);
% npxy=[npy npx];
set(handles.ext_ima,'String',ext_ima)
set(handles.first_i,'String',num2str(first_i));
set(handles.last_i,'String',num2str(last_i));%
set(handles.first_j,'String',num2str(first_j));
set(handles.last_j,'String',num2str(last_j));%
browse.nom_type_ima=nom_type_ima;
set(handles.browse_root,'UserData',browse)% store the nomenclature type

        %%%%%%%%%%%  set the menus of image pairs and default selection for civ   %%%%%%%%%%%%%%%%%%%
if isequal(nom_type_ima,'_i')|| isequal(nom_type_nc,'_i1-i2')||~(exist('nbfield2','var')&&(nbfield2~=1))
    set(handles.mode,'String',{'series(Di)'})
    set(handles.mode,'Value',1)
elseif isequal(nom_type_ima,'png_old')||isequal(nom_type_nc,'netc_old')
    set(handles.mode,'String',{'pair j1-j2'})
    set(handles.mode,'Value',1)
elseif (nbfield==1)% simple series in j
    set(handles.mode,'String',{'series(Dj)'})
    set(handles.mode,'Value',1)
else
    set(handles.mode,'String',{'pair j1-j2';'series(Dj)';'series(Di)'})%multiple choice
    if nbfield2 <= 5
         set(handles.mode,'Value',1)% advice 'pair j1-j2' for small burst
    end
%     else
%     if isequal(mode,'volume')
%         set(handles.mode,'Value',3)
%     elseif nbfield2 <= 5
%         set(handles.mode,'Value',1)% advice 'pair j1-j2' for small bursts
%     else
%         set(handles.mode,'Value',2)% advice series Dj for long bursts, not volume
%     end
end

%update the subdir 
pathdir=fileparts(filebase);%path to the current xml file
listot=dir(pathdir);
idir=0;
listdir={''};%default
for ilist=1:length(listot)
    if listot(ilist).isdir
        name=listot(ilist).name;
        if ~isequal(name,'.') && ~isequal(name,'..')
            idir=idir+1;
            listdir{idir,1}=listot(ilist).name;
        end
    end
end
set(handles.list_subdir_civ1,'Value',1) 
set(handles.list_subdir_civ2,'Value',1)
set(handles.list_subdir_civ1,'String',['browse...';listdir])
set(handles.list_subdir_civ2,'String',['browse...';listdir])
%check wether the current subdir exists:
subdir_civ1=get(handles.subdir_civ1,'String');
subdir_civ2=get(handles.subdir_civ2,'String');

mode_Callback(hObject, eventdata, handles)  

%%%%%% initialize waitbars and RUN button
set(handles.waitbar_1,'Position',[0.946 0.876 0.03 0.001])
set(handles.waitbar_patch1,'Position',[0.946 0.439 0.03 0.001])
set(handles.waitbar_civ2,'Position',[0.946 0.219 0.03 0.001])
set(handles.waitbar_patch2,'Position',[0.946 0.0 0.03 0.001])
set(handles.RUN, 'Enable','On')
set(handles.RUN,'BackgroundColor',[1 0 0])
if isequal(test_batch,1)%if batch installation is available
    set(handles.BATCH, 'Enable','On')
    set(handles.BATCH,'BackgroundColor',[1 0 0])
end
    
%%%%% store the root input filename for future opening
dir_perso=prefdir;
profil_perso=fullfile(prefdir,'uvmat_perso.mat');
RootPath=fileparts(filebase);
if exist(profil_perso,'file')
    save (profil_perso,'RootPath','-append'); %store the root name for future opening of uvmat
else
    txt=ver;
    Release=txt(1).Release;
    relnumb=str2num(Release(3:4));
    if relnumb >= 14
        save (profil_perso,'RootPath','-V6'); %store the root name for future opening of uvmat 
    else
        save (profil_perso,'RootPath'); %store the root name for future opening of uvmat
    end
end
% save(profil_perso, 'filebase'); %store the root name for future opening of uvmat
set(gcf,'Pointer','arrow')

%------------------------------------------------------------------------
% --- Executes on button press in mode.
function mode_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
browse=get(handles.browse_root,'UserData');
compare_list=get(handles.compare,'String');
val=get(handles.compare,'Value');
compare=compare_list{val};
if strcmp(compare,'displacement')
    mode='displacement';
else
    mode_list=get(handles.mode,'String');
    mode_value=get(handles.mode,'Value');
    mode=mode_list{mode_value};
end
displ_num=[];%default
first_i=str2num(get(handles.first_i,'String'));
% last_i=str2num(get(handles.last_i,'String'));
time=get(handles.displ_filebase,'UserData'); %get the set of times
siztime=size(time);
nbfield=siztime(1);
nbfield2=siztime(2);
indchosen=1;  %%first pair selected by default
if isequal(mode,'pair j1-j2')%| isequal(mode,'st_pair j1-j2')
    dt=1;
    displ='';
    index=0;
    numlist_a=[];
    numlist_B=[];
    %get all the time intervals in bursts
    displ_dt=1;%default
    nbfield2=min(nbfield2,10);%limitate the number of pairs to 10x10
    for numod_a=1:nbfield2-1 %nbfield2 always >=2 for 'pair j1-j2' mode
        for numod_b=(numod_a+1):nbfield2
             index=index+1;
             numlist_a(index)=numod_a;
             numlist_b(index)=numod_b;
             if ~isempty(time)
                dt(numod_a,numod_b)=time(first_i,numod_b)-time(first_i,numod_a);%first time interval dt
                displ_dt(index)=dt(numod_a,numod_b);
             else
                 displ_dt(index)=1;
             end
         end
     end
     [dtsort,indsort]=sort(displ_dt);
     if ~isempty(numlist_a)
     displ_num(1,:)=numlist_a(indsort);
     displ_num(2,:)=numlist_b(indsort);
     end
     displ_num(3,:)=0;
     displ_num(4,:)=0;
     set(handles.jtext,'Visible','Off')
    set(handles.first_j,'Visible','Off')
    set(handles.last_j,'Visible','Off')
    set(handles.incr_j,'Visible','Off')
    set(handles.nb_field2,'Visible','Off')
    set(handles.ref_j,'Visible','Off')
elseif isequal(mode,'series(Dj)') %| isequal(mode,'st_series(Dj)')
     for index=1:min(nbfield2-1,200)
         displ_num(1,index)=-floor(index/2);
         displ_num(2,index)=ceil(index/2);
         displ_num(3,index)=0;
         displ_num(4,index)=0;
     end       
     set(handles.jtext,'Visible','On')
     set(handles.first_j,'Visible','On')
     set(handles.last_j,'Visible','On')
     set(handles.incr_j,'Visible','On')
     set(handles.nb_field2,'Visible','On')
     set(handles.ref_j,'Visible','On')
     if nbfield > 1
        set(handles.itext,'Visible','On')
        set(handles.first_i,'Visible','On')
        set(handles.last_i,'Visible','On')
        set(handles.incr_i,'Visible','On')
        set(handles.nb_field,'Visible','On')
        set(handles.ref_i,'Visible','On')
    else
        set(handles.itext,'Visible','Off')
        set(handles.first_i,'Visible','Off')
        set(handles.last_i,'Visible','Off')
        set(handles.incr_i,'Visible','Off')
        set(handles.nb_field,'Visible','Off')
        set(handles.ref_i,'Visible','Off')
    end
elseif isequal(mode,'series(Di)') %| isequal(mode,'st_series(Di)') 
     for index=1:200%min(nbfield-1,200)
         displ_num(1,index)=0;
         displ_num(2,index)=0;
         displ_num(3,index)=-floor(index/2);
         displ_num(4,index)=ceil(index/2);
     end
     set(handles.itext,'Visible','On')
     set(handles.first_i,'Visible','On')
     set(handles.last_i,'Visible','On')
     set(handles.incr_i,'Visible','On')
     set(handles.nb_field,'Visible','On')
     set(handles.ref_i,'Visible','On')
     if nbfield2 > 1
        set(handles.jtext,'Visible','On')
        set(handles.first_j,'Visible','On')
        set(handles.last_j,'Visible','On')
        set(handles.incr_j,'Visible','On')
        set(handles.nb_field2,'Visible','On')
        set(handles.ref_j,'Visible','On')
     else
        set(handles.jtext,'Visible','Off')
        set(handles.first_j,'Visible','Off')
        set(handles.last_j,'Visible','Off')
        set(handles.incr_j,'Visible','Off')
        set(handles.nb_field2,'Visible','Off')
        set(handles.ref_j,'Visible','Off')
    end
elseif isequal(mode,'displacement')%the pairs have the same indices
     displ_num(1,1)=0; 
     displ_num(2,1)=0;
     displ_num(3,1)=0;
     displ_num(4,1)=0;
     if nbfield > 1
        set(handles.itext,'Visible','On')
        set(handles.first_i,'Visible','On')
        set(handles.last_i,'Visible','On')
        set(handles.incr_i,'Visible','On')
        set(handles.nb_field,'Visible','On')
        set(handles.ref_i,'Visible','On')
    else
        set(handles.itext,'Visible','Off')
        set(handles.first_i,'Visible','Off')
        set(handles.last_i,'Visible','Off')
        set(handles.incr_i,'Visible','Off')
        set(handles.nb_field,'Visible','Off')
        set(handles.ref_i,'Visible','Off')
    end
    if nbfield2 > 1
      set(handles.jtext,'Visible','On')
     set(handles.first_j,'Visible','On')
     set(handles.last_j,'Visible','On')
     set(handles.incr_j,'Visible','On')
     set(handles.nb_field2,'Visible','On')
     set(handles.ref_j,'Visible','On')
    else
        set(handles.jtext,'Visible','Off')
        set(handles.first_j,'Visible','Off')
        set(handles.last_j,'Visible','Off')
        set(handles.incr_j,'Visible','Off')
        set(handles.nb_field2,'Visible','Off')
        set(handles.ref_j,'Visible','Off')
    end
end  
set(handles.list_pair_civ1,'UserData',displ_num);
find_netcpair_civ1(hObject, eventdata, handles)
find_netcpair_civ2(hObject, eventdata, handles)

%------------------------------------------------------------------------
% determine the menu for civ1 pairs depending on existing netcdf file at the middle of
% the field series set by first_i, incr, last_i
function find_netcpair_civ1(hObject, eventdata, handles)
%------------------------------------------------------------------------
set(gcf,'Pointer','watch')
%nomenclature types
filebase=get(handles.displ_filebase,'String');
[filepath,Nme,ext_dir]=fileparts(filebase);
browse=get(handles.browse_root,'UserData');
compare_list=get(handles.compare,'String');
val=get(handles.compare,'Value');
compare=compare_list{val};
if strcmp(compare,'displacement')
    mode='displacement';
else
    mode_list=get(handles.mode,'String');
    mode_value=get(handles.mode,'Value');
    mode=mode_list{mode_value};
end

% nomenclature type of the .nc files
nom_type_ima=[];%default
if isfield(browse,'nom_type_ima')
    nom_type_ima=browse.nom_type_ima;
end

%determine nom_type_nc: 
nom_type_nc=[];%default
if isfield(browse,'nom_type_nc')
    nom_type_nc=browse.nom_type_nc;
end
if isempty(nom_type_nc)
     [nom_type_nc]=nomtype2pair(nom_type_ima,isequal(mode,'series(Di)'),isequal(mode,'series(Dj)'));
end
browse.nom_type_nc=nom_type_nc;
set(handles.browse_root,'UserData',browse)

%reads .nc subdirectoy and image numbers from the interface
subdir_civ1=get(handles.subdir_civ1,'String');%subdirectory subdir_civ1 for the netcdf data
first_i=str2num(get(handles.first_i,'String'));
last_i=str2num(get(handles.last_i,'String'));
incr=str2num(get(handles.incr_i,'String'));
num1=first_i:incr:last_i;
if isempty(num1)
    set(handles.list_pair_civ1,'String',{''});
    return
end
ref_i=str2num(get(handles.ref_i,'String'));
if isequal(mode,'pair j1-j2')%|isequal(mode,'st_pair j1-j2')
    ref_j=0;
else
    ref_j=str2num(get(handles.ref_j,'String'));
end
time=get(handles.displ_filebase,'UserData');%get the set of times
if isempty(time)
    time=[0 1];
end 
dt_unit=str2num(get(handles.dt,'String'));% used when there is no image documentation file
displ_num=get(handles.list_pair_civ1,'UserData');

%eliminate the first pairs inconsistent with the position 
 if isempty(displ_num)
     nbpair=0;
 else
    nbpair=length(displ_num(1,:));%nbre of displayed pairs
    if  isequal(mode,'series(Di)')  %| isequal(mode,'st_series(Di)')
        nbpair=min(2*ref_i-1,nbpair);%limit the number of pairs with positive first index
    elseif  isequal(mode,'series(Dj)')% | isequal(mode,'st_series(Dj)')
        nbpair=min(2*ref_j-1,nbpair);%limit the number of pairs with positive first index
    end
 end
nbpair=min(200,nbpair);%limit the number of displayed pairs to 200

%look for existing processed pairs involving the field at the middle of the series if civ1 will not 
% be performed, while the result is needed for next steps.
displ_pair={''};
select=ones(size(1:nbpair));%default =1 for numbers of displayed pairs
testpair=0;
if get(handles.CIV1,'Value')==0 %
    dirname=fullfile(filepath,subdir_civ1,ext_dir);
    if ~exist(fullfile(filepath,subdir_civ1,ext_dir),'dir') 
         msgbox_uvmat('ERROR',['no civ1 file available: subdirectory ' subdir_civ1 ' does not exist']);
         set(handles.list_pair_civ1,'String',{});
         return
    end
    for ipair=1:nbpair   
        filename=name_generator(filebase,ref_i+displ_num(3,ipair),ref_j+displ_num(1,ipair),'.nc',nom_type_nc,1,...
        ref_i+displ_num(4,ipair),ref_j+displ_num(2,ipair),subdir_civ1);
        select(ipair)=exist(filename,'file')==2;
    end
    if ~exist('select','var') || isequal(select,zeros(size(1:nbpair)))
        if isfield(browse,'incr_pair') 
            num_i1=ref_i-floor(browse.incr_pair(1)/2);
            num_i2=ref_i+ceil(browse.incr_pair(1)/2);
            num_j1=ref_j-floor(browse.incr_pair(2)/2);
            num_j2=ref_j+ceil(browse.incr_pair(2)/2);
            filename=name_generator(filebase,num_i1,num_j1,'.nc',nom_type_nc,1,num_i2,num_j2,subdir_civ1);
            select(1)=exist(filename,'file')==2;
            testpair=1;
        else
            if  isequal(mode,'series(Dj)')% | isequal(mode,'st_series(Dj)') 
                msgbox_uvmat('ERROR',['no civ1 file available for the selected reference index j=' num2str(ref_j) ' and subdirectory ' subdir_civ1]);
            else
                msgbox_uvmat('ERROR',['no civ1 file available for the selected reference index i=' num2str(ref_i) ' and subdirectory ' subdir_civ1]);
            end
             set(handles.list_pair_civ1,'String',{''});
             %COMPLETER CAS STEREO
            return
        end
    end
end
if isequal(mode,'series(Di)') %| isequal(mode,'st_series(Di)')
    if testpair
              displ_pair{1}=['Di= ' num2str(-floor(browse.incr_pair(1)/2)) '|' num2str(ceil(browse.incr_pair(1)/2))];        
    elseif ~isequal(get(handles.dt_text,'String'),'dt(ms)=') 
       for ipair=1:nbpair
          if select(ipair)  
              if size(time,1)>=ref_i+displ_num(4,ipair) && size(time,2)>=ref_j+displ_num(2,ipair)
              dt=time(ref_i+displ_num(4,ipair),ref_j+displ_num(2,ipair))-time(ref_i+displ_num(3,ipair),ref_j+displ_num(1,ipair));%time interval dt
              displ_pair{ipair}=['Di= ' num2str(-floor(ipair/2)) '|' num2str(ceil(ipair/2)) ' :dt= ' num2str(dt*1000)];
              end
          else 
             displ_pair{ipair}='...'; %pair not displayed in the menu
          end
       end
    else
       for ipair=1:nbpair
         if select(ipair)
            displ_pair{ipair}=['Di= ' num2str(-floor(ipair/2)) '|' num2str(ceil(ipair/2)) ' :dt= ' num2str(dt_unit*ipair)];
         else 
            displ_pair{ipair}='...'; %pair not displayed in the menu
         end
       end
    end
elseif isequal(mode,'series(Dj)')%|isequal(mode,'st_series(Dj)')% series on the j index
    if testpair
         displ_pair{1}=['Dj= ' num2str(-floor(browse.incr_pair(1)/2)) '|' num2str(ceil(browse.incr_pair(1)/2))]; 
    else
       for ipair=1:nbpair
          if select(ipair)
              if size(time,1)>=ref_i+displ_num(4,ipair) && size(time,2)>=ref_j+displ_num(2,ipair)
              dt=time(ref_i+displ_num(4,ipair),ref_j+displ_num(2,ipair))-time(ref_i+displ_num(3,ipair),ref_j+displ_num(1,ipair));%time interval dt
              displ_pair{ipair}=['Dj= ' num2str(-floor(ipair/2)) '|' num2str(ceil(ipair/2)) ' :dt= ' num2str(dt*1000)];
              end
           elseif testpair
              displ_pair{1}=['Dj= ' num2str(-floor(browse.incr_pair(2)/2)) '|' num2str(ceil(browse.incr_pair(2)/2))];
          else 
             displ_pair{ipair}='...'; %pair not displayed in the menu
          end
       end
   end
elseif isequal(mode,'pair j1-j2')%|isequal(mode,'st_pair j1-j2')%case of pairs
    for ipair=1:nbpair
        if select(ipair)
           dt=time(ref_i+displ_num(4,ipair),displ_num(2,ipair))-time(ref_i+displ_num(3,ipair),displ_num(1,ipair));%time interval dt
           displ_pair{ipair}=['j= ' num2stra(displ_num(1,ipair),nom_type_ima) '-' num2stra(displ_num(2,ipair),nom_type_ima) ...
                        ' :dt= ' num2str(dt*1000)];
       else 
          displ_pair{ipair}='...'; %pair not displayed in the menu
        end   
   end
elseif isequal(mode,'displacement')
    displ_pair={'Di=Dj=0'};  
end   
set(handles.list_pair_civ1,'String',displ_pair');
ichoice=min(find(select));
if (isempty(ichoice) | ichoice < 1); ichoice=1; end;
initial=get(handles.list_pair_civ1,'Value');
if initial>nbpair |~isequal(select(initial),1)
    set(handles.list_pair_civ1,'Value',ichoice);% first valid pair proposed by default in the menu
end
%set(handles.list_pair_civ2,'String',displ_pair');
initial=get(handles.list_pair_civ2,'Value');
if initial>length(displ_pair')%|~isequal(select(initial),1)
    if ichoice <= length(displ_pair')
        set(handles.list_pair_civ2,'Value',ichoice);% same pair proposed by default for civ2
    else
        set(handles.list_pair_civ2,'Value',1);% same pair proposed by default for civ2
    end
end
set(handles.list_pair_civ2,'String',displ_pair');
set(gcf,'Pointer','arrow')

%------------------------------------------------------------------------
% determine the menu for civ2 pairs depending on the existing netcdf file at the 
%middle of the series set by first_i, incr, last_i 
function find_netcpair_civ2(hObject, eventdata, handles)
%------------------------------------------------------------------------
set(gcf,'Pointer','watch')
%nomenclature types
filebase=get(handles.displ_filebase,'String');
[filepath,Nme,ext_dir]=fileparts(filebase);
browse=get(handles.browse_root,'UserData');
compare_list=get(handles.compare,'String');
val=get(handles.compare,'Value');
compare=compare_list{val};
if strcmp(compare,'displacement')
    mode='displacement';
else
    mode_list=get(handles.mode,'String');
    mode_value=get(handles.mode,'Value');
    mode=mode_list{mode_value};
end

% nomenclature type of the .nc files
nom_type_ima='ima_num';%default
if isfield(browse,'nom_type_ima')
    nom_type_ima=browse.nom_type_ima;
end
nom_type_nc='_i1-i2';%default
if isfield(browse,'nom_type_nc')
    nom_type_nc=browse.nom_type_nc;
end
if isequal(nom_type_ima,'png_old') | isequal(nom_type_ima,'netc_old')| isequal(nom_type_ima,'raw_SMD')| isequal(nom_type_nc,'netc_old')
    nom_type_nc='netc_old';%nom_type for the netcdf files
elseif isequal(nom_type_ima,'none')|isequal(nom_type_nc,'none')
    nom_type_nc='none';
elseif isequal(nom_type_ima,'avi')|isequal(nom_type_ima,'_i')|isequal(nom_type_ima,'ima_num')|isequal(nom_type_nc,'_i1-i2')
     nom_type_nc='_i1-i2';
else
    if  isequal(mode,'series(Di)')%|isequal(mode,'st_series(Di)')
        nom_type_nc='_i1-i2_j'; % PIV in volume
    else
        nom_type_nc='_i_j1-j2';
    end    
end
browse.nom_type_nc=nom_type_nc;
set(handles.browse_root,'UserData',browse)

%reads .nc subdirectory and image numbers from the interface
subdir_civ1=get(handles.subdir_civ1,'String');%subdirectory subdir_civ1 for the netcdf data
subdir_civ2=get(handles.subdir_civ2,'String');%subdirectory subdir_civ2 for the netcdf data
first_i=str2num(get(handles.first_i,'String'));
last_i=str2num(get(handles.last_i,'String'));
incr=str2num(get(handles.incr_i,'String'));
num1=first_i:incr:last_i;
if isempty(num1)
    set(handles.list_pair_civ2,'Value',1);
    set(handles.list_pair_civ2,'String',{''});
    return
end
ref_i=str2num(get(handles.ref_i,'String'));
if isequal(mode,'pair j1-j2')%|isequal(mode,'st_pair j1-j2')
    ref_j=0;
else
    ref_j=str2num(get(handles.ref_j,'String'));
end
if isequal(get(handles.dt_text,'String'),'dt(ms)=')%simple series(Di) with equal interval
    ref_i=ceil((first_i+last_i)/2);
    ref_j=1;
end
%     ref_i=browse.num_ref;%field number initially selected by the browser
time=get(handles.displ_filebase,'UserData'); %get the set of times
if isempty(time)
    time=[0 1];%default
end
dt_unit=str2num(get(handles.dt,'String'));% used when there is no image documentation file
displ_num=get(handles.list_pair_civ1,'UserData');


%eliminate the first pairs inconsistent with the position 
if isempty(displ_num)
    nbpair=0;
else
    nbpair=length(displ_num(1,:));%nbre of displayed pairs
    if  isequal(mode,'series(Di)')% | isequal(mode,'st_series(Di)') 
        nbpair=min(2*ref_i-1,nbpair);%limit the number of pairs with positive first index
    elseif  isequal(mode,'series(Dj)')% | isequal(mode,'st_series(Dj)') 
        nbpair=min(2*ref_j-1,nbpair);%limit the number of pairs with positive first index
    end
end
nbpair=min(200,nbpair);%limit the number of displayed pairs to 200

%look for existing processed pairs involving the field at the middle of the series if civ1 will not 
% be performed, while the result is needed for next steps.
displ_pair={''}; %default
select=ones(size(1:nbpair));%default =1 for numbers of displayed pairs
if get(handles.CIV2,'Value')==0 & get(handles.CIV1,'Value')==0 & get(handles.FIX1,'Value')==0 & get(handles.PATCH1,'Value')==0%&...
    if ~exist(fullfile(filepath,subdir_civ2,ext_dir),'dir') 
         errordlg(['no civ2 file available: subdirectory ' subdir_civ2 ' does not exist'])
         set(handles.list_pair_civ2,'Value',1);
         set(handles.list_pair_civ2,'String',{''});
         return
    end
    for ipair=1:nbpair       
        filename=name_generator(filebase,ref_i+displ_num(3,ipair),ref_j+displ_num(1,ipair),'.nc',nom_type_nc,1,...
        ref_i+displ_num(4,ipair),ref_j+displ_num(2,ipair),subdir_civ1);
        select(ipair)=exist(filename,'file')==2;
    end
    if  isequal(select,zeros(size(1:nbpair)))
        if isfield(browse,'incr_pair') 
            num_i1=ref_i-floor(browse.incr_pair(1)/2);
            num_i2=ref_i+floor((browse.incr_pair(1)+1)/2);
            num_j1=ref_j-floor(browse.incr_pair(2)/2);
            num_j2=ref_j+floor((browse.incr_pair(2)+1)/2);
            filename=name_generator(filebase,num_i1,num_j1,'.nc',nom_type_nc,1,num_i2,num_j2,subdir_civ2);
            select(1)=exist(filename,'file')==2;
        else
            if  isequal(mode,'series(Dj)')% | isequal(mode,'st_series(Dj)') 
                errordlg(['no civ2 file available for the selected reference index j=' num2str(ref_j) ' and subdirectory ' subdir_civ2])
            else
                errordlg(['no civ2 file available for the selected reference index i=' num2str(ref_i) ' and subdirectory ' subdir_civ2])
            end
             set(handles.list_pair_civ2,'Value',1);
             set(handles.list_pair_civ2,'String',{''});
            return
        end
    end
end
if isequal(mode,'series(Di)') % | isequal(mode,'st_series(Di)') 
%     if  ~isequal(get(handles.dt_text,'String'),'dt(ms)=')
       for ipair=1:nbpair
          if select(ipair)
              if size(time,1)>=ref_i+displ_num(4,ipair) && size(time,2)>=ref_j+displ_num(2,ipair)
                dt=time(ref_i+displ_num(4,ipair),ref_j+displ_num(2,ipair))-time(ref_i+displ_num(3,ipair),ref_j+displ_num(1,ipair));%time interval dt
                displ_pair{ipair}=['Di= ' num2str(-floor(ipair/2)) '|' num2str(ceil(ipair/2)) ' :dt= ' num2str(dt*1000)];
              end
          else 
             displ_pair{ipair}='...'; %pair not displayed in the menu
          end
       end
elseif isequal(mode,'series(Dj)') %| isequal(mode,'st_series(Dj)') % series on the j index
       for ipair=1:nbpair
          if select(ipair)
              if size(time,1)>=ref_i+displ_num(4,ipair) && size(time,2)>=ref_j+displ_num(2,ipair)
              dt=time(ref_i+displ_num(4,ipair),ref_j+displ_num(2,ipair))-time(ref_i+displ_num(3,ipair),ref_j+displ_num(1,ipair));%time interval dt
              displ_pair{ipair}=['Dj= ' num2str(-floor(ipair/2)) '|' num2str(ceil(ipair/2)) ' :dt= ' num2str(dt*1000)];
              end
          else 
             displ_pair{ipair}='...'; %pair not displayed in the menu
          end
       end
elseif isequal(mode,'pair j1-j2')% | isequal(mode,'st_pair j1-j2') %case of pairs
    for ipair=1:nbpair
        if select(ipair)
           dt=time(ref_i+displ_num(4,ipair),displ_num(2,ipair))-time(ref_i+displ_num(3,ipair),displ_num(1,ipair));%time interval dt
           displ_pair{ipair}=['j= ' num2stra(displ_num(1,ipair),nom_type_ima) '-' num2stra(displ_num(2,ipair),nom_type_ima) ...
                        ' :dt= ' num2str(dt*1000)];
       else 
          displ_pair{ipair}='...'; %pair not displayed in the menu
       end   
   end
elseif isequal(mode,'displacement')
    displ_pair={'Di=Dj=0'};  
end   
val=get(handles.list_pair_civ2,'Value');
ichoice=min(find(select));
if (isempty(ichoice) | ichoice < 1); ichoice=1; end;
if get(handles.CIV2,'Value')==0 & get(handles.CIV1,'Value')==0 & get(handles.FIX1,'Value')==0 & get(handles.PATCH1,'Value')==0
    val=ichoice;% first valid pair proposed by default in the menu
end
if val>length(displ_pair')
    set(handles.list_pair_civ2,'Value',1);% first valid pair proposed by default in the menu
else
    set(handles.list_pair_civ2,'Value',val);
end
set(handles.list_pair_civ2,'String',displ_pair');
set(gcf,'Pointer','arrow')

%------------------------------------------------------------------------
%  determine the list of index pairs of processing file 
function [num1_civ1,num2_civ1,num_a_civ1,num_b_civ1,num1_civ2,num2_civ2,num_a_civ2,num_b_civ2]=...
    find_pair_indices(handles,mode)
%------------------------------------------------------------------------
first_i=str2num(get(handles.first_i,'String'));%first index i 
last_i=str2num(get(handles.last_i,'String'));%last index i 
incr=str2num(get(handles.incr_i,'String'));% increment
num_i=[first_i:incr:last_i];% list of i indices (reference values for each pair)
if isequal(get(handles.first_j,'Visible'),'on')
    first_j=str2num(get(handles.first_j,'String'));%first index j
    last_j=str2num(get(handles.last_j,'String'));%last index j 
    incr_j=str2num(get(handles.incr_j,'String'));% increment
else
    first_j=1;
    last_j=1;
    incr_j=1;
end
num_j=[first_j:incr_j:last_j];% list of j indices (reference values for each pair)
list_civ1=get(handles.list_pair_civ1,'String');
index_civ1=get(handles.list_pair_civ1,'Value');
str_civ1=list_civ1{index_civ1};%string defining the image pairs for civ1
if isempty(str_civ1)||isequal(str_civ1,'')
    msgbox_uvmat('ERROR','no image pair selected for civ1')
    return
end
list_civ2=get(handles.list_pair_civ2,'String');
index_civ2=get(handles.list_pair_civ2,'Value');
if index_civ2>length(list_civ2)
    list_civ2=list_civ1;
    index_civ2=index_civ1;
end
str_civ2=list_civ2{index_civ2};%string defining the image pairs for civ2
if isempty(first_i)||isempty(first_j), msgbox_uvmat('ERROR','first field number not defined'),...
    return,end;
if isequal(last_i,[])|| isequal(last_j,[]),msgbox_uvmat('ERROR','last field number not defined'),...
    return,end;
if isequal(incr,[])|| isequal(incr_j,[]),msgbox_uvmat('ERROR','increment in field number not defined'),...
    return,end;
if last_i < first_i || last_j < first_j , msgbox_uvmat('ERROR','last field number must be larger than the first one'),...
    return,end;
if isequal (mode,'series(Di)') 
     %recognize the pair civ1 from the display
	indsel=find((double(str_civ1)<48)|(double(str_civ1)>57));% character indices of non numerical characters
    str_raw=str_civ1(indsel);
    indsepar=find(str_raw=='|'); %character index of the separator
    d1=str2num(str_civ1([indsel(indsepar-1)+1:indsel(indsepar)-1]));
    if indsepar==length(str_raw)
        d2=str2num(str_civ1([indsel(indsepar)+1:end]));
    else
        d2=str2num(str_civ1([indsel(indsepar)+1:indsel(indsepar+1)-1]));
    end   
    num1_civ1=num_i-d1;% set of first image numbers
    num2_civ1=num_i+d2;
    num_a_civ1=num_j;
    num_b_civ1=num_j;
    
    %recognize the pair civ2 from the display
    indsel=find((double(str_civ2)<48)|(double(str_civ2)>57));% character indices of non numerical characters
    str_raw=str_civ2(indsel);
    indsepar=find(str_raw=='|'); %character index of the separator
    d1=str2num(str_civ2([indsel(indsepar-1)+1:indsel(indsepar)-1]));
    if indsepar==length(str_raw)
        d2=str2num(str_civ2([indsel(indsepar)+1:end]));
    else
        d2=str2num(str_civ2([indsel(indsepar)+1:indsel(indsepar+1)-1]));
    end   
    if isempty(d1)
        num1_civ2=num_i;
    else
        num1_civ2=num_i-d1;% set of first image numbers
    end
    if isempty(d2)
        num2_civ2=num_i;
    else
        num2_civ2=num_i+d2;
    end
    num_a_civ2=num_j;
    num_b_civ2=num_j;
    
    % adjust the first and last field number
    lastfield=str2num(get(handles.nb_field,'String'));
    if isequal(lastfield,[])
        indsel=find((num1_civ1 >= 1)&(num1_civ2 >= 1));
    else
        indsel=find((num2_civ1 <= lastfield)&(num2_civ2 <= lastfield)&(num1_civ1 >= 1)&(num1_civ2 >= 1));
    end
    if length(indsel)>=1
        firstind=indsel(1);
        lastind=indsel(end);
        set(handles.first_i,'String',num2str(num_i(firstind)))%update the display of first and last fields
        set(handles.last_i,'String',num2str(num_i(lastind)))
        num_i=num_i(indsel);
        num1_civ1=num1_civ1(indsel);
        num1_civ2=num1_civ2(indsel);
        num2_civ1=num2_civ1(indsel);
        num2_civ2=num2_civ2(indsel);
    end
elseif isequal (mode,'series(Dj)')
    lastfield_j=str2num(get(handles.nb_field2,'String'));
    num1_civ1=num_i;% set of first image numbers
    num2_civ1=num_i;
    num_a_civ1=num_j-floor(index_civ1/2)*ones(size(num_j));
    num_b_civ1=num_j+ceil(index_civ1/2)*ones(size(num_j));
    num1_civ2=num_i;
    num2_civ2=num_i;
    num_a_civ2=num_j-floor(index_civ2/2)*ones(size(num_j));
    num_b_civ2=num_j+ceil(index_civ2/2)*ones(size(num_j));
    % adjust the first and last field number
    if isequal(lastfield_j,[])
        indsel=find((num_a_civ1 >= 1)&(num_a_civ2 >= 1));
    else
        indsel=find((num_b_civ1 <= lastfield_j)&(num_b_civ2 <= lastfield_j)&(num_a_civ1 >= 1)&(num_a_civ2 >= 1));
    end
    if length(indsel)>=1
        firstind=indsel(1);
        lastind=indsel(end);
        set(handles.first_j,'String',num2str(num_j(firstind)))%update the display of first and last fields
        set(handles.last_j,'String',num2str(num_j(lastind)))
        num_j=num_j(indsel);
        num_a_civ1=num_a_civ1(indsel);
        num_a_civ2=num_a_civ2(indsel);
        num_b_civ1=num_b_civ1(indsel);
        num_b_civ2=num_b_civ2(indsel);
    end
elseif isequal(mode,'pair j1-j2') %case of bursts (png_old or png_2D)
    num1_civ1=num_i;
    num1_civ2=num_i;
    displ_num=get(handles.list_pair_civ1,'UserData');
    num2_civ1=num_i;
    num_a_civ1=displ_num(1,index_civ1);
    num_b_civ1=displ_num(2,index_civ1);
    num2_civ2=num_i;
    num_a_civ2=displ_num(1,index_civ2);
    num_b_civ2=displ_num(2,index_civ2);
elseif isequal(mode,'displacement')
    num1_civ1=num_i;
    num2_civ1=num_i;
    num_a_civ1=num_j;
    num_b_civ1=num_j;
    num1_civ2=num_i;
    num2_civ2=num_i;
    num_a_civ2=num_j;
    num_b_civ2=num_j;
end


%------------------------------------------------------------------------
% --- Executes on selection change in list_pair_civ1.
function list_pair_civ1_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
%reproduce by default the chosen pair in the civ2 menu
list_pair=get(handles.list_pair_civ1,'String');%get the menu of image pairs
index_pair=get(handles.list_pair_civ1,'Value');
displ_num=get(handles.list_pair_civ1,'UserData');
num_a=displ_num(1,index_pair);
num_b=displ_num(2,index_pair);
list_pair2=get(handles.list_pair_civ2,'String');%get the menu of image pairs
if index_pair<=length(list_pair2)
    set(handles.list_pair_civ2,'Value',index_pair);
end

%update first_i and last_i according to the chosen image pairs 
mode_list=get(handles.mode,'String');
mode_value=get(handles.mode,'Value');
mode=mode_list{mode_value};
if isequal(mode,'series(Di)')
    first_i=str2num(get(handles.first_i,'String'));
    last_i=str2num(get(handles.last_i,'String'));
    incr_i=str2num(get(handles.incr_i,'String'));
    num1=first_i:incr_i:last_i;
    lastfield=str2num(get(handles.nb_field,'String'));
    if ~isequal(lastfield,[])
        ind=find((num1-floor(index_pair/2)*ones(size(num1))>0)& ...
             (num1+ceil(index_pair/2)*ones(size(num1))<=lastfield));
        num1=num1(ind);
    end
    set(handles.first_i,'String',num2str(num1(1)));
    set(handles.last_i,'String',num2str(num1(end)));
elseif isequal(mode,'series(Dj)')
    first_j=str2num(get(handles.first_j,'String'));
    last_j=str2num(get(handles.last_j,'String'));
    incr_j=str2num(get(handles.incr_j,'String'));
    num_j=first_j:incr_j:last_j;
    lastfield2=str2num(get(handles.nb_field2,'String'));
    if ~isequal(lastfield2,[])
        ind=find((num_j-floor(index_pair/2)*ones(size(num_j))>0)& ...
             (num_j+ceil(index_pair/2)*ones(size(num_j))<=lastfield2));
        num1=num_j(ind);
    end
    set(handles.first_j,'String',num2str(num1(1)));
    set(handles.last_j,'String',num2str(num1(end)));
end 

%------------------------------------------------------------------------
% --- Executes on selection change in list_pair_civ2.
function list_pair_civ2_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
index_pair=get(handles.list_pair_civ2,'Value');%get the selected position index in the menu 

%update first_i and last_i according to the chosen image pairs 
mode_list=get(handles.mode,'String');
mode_value=get(handles.mode,'Value');
mode=mode_list{mode_value};
if isequal(mode,'series(Di)')
    first_i=str2num(get(handles.first_i,'String'));
    last_i=str2num(get(handles.last_i,'String'));
    incr_i=str2num(get(handles.incr_i,'String'));
    num1=first_i:incr_i:last_i;
    lastfield=str2num(get(handles.nb_field,'String'));
    if ~isequal(lastfield,[])
        ind=find((num1-floor(index_pair/2)*ones(size(num1))>0)& ...
             (num1+ceil(index_pair/2)*ones(size(num1))<=lastfield));
        num1=num1(ind);
    end
    set(handles.first_i,'String',num2str(num1(1)));
    set(handles.last_i,'String',num2str(num1(end)));
elseif isequal(mode,'series(Dj)')
    first_j=str2num(get(handles.first_j,'String'));
    last_j=str2num(get(handles.last_j,'String'));
    incr_j=str2num(get(handles.incr_j,'String'));
    num_j=first_j:incr_j:last_j;
    lastfield2=str2num(get(handles.nb_field2,'String'));
    if ~isequal(lastfield2,[])
        ind=find((num_j-floor(index_pair/2)*ones(size(num_j))>0)& ...
             (num_j+ceil(index_pair/2)*ones(size(num_j))<=lastfield2));
        num1=num_j(ind);
    end
    set(handles.first_j,'String',num2str(num1(1)));
    set(handles.last_j,'String',num2str(num1(end)));
end 

%------------------------------------------------------------------------
% --- Executes on button press in RUN.
function RUN_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
global civ1_exe civ2_exe patch_exe patch_new_exe sge

compare=get(handles.compare,'Value');%test for usual PIV (compare=1) or displacement (=2) or stereo PIV (=3)
%check the list of operations:
operations={'CIV1','FIX1','PATCH1','CIV2','FIX2','PATCH2'};
run_flag=1;
box_test(1)=get(handles.CIV1,'Value');
box_test(2)=get(handles.FIX1,'Value');
box_test(3)=get(handles.PATCH1,'Value');
box_test(4)=get(handles.CIV2,'Value');
box_test(5)=get(handles.FIX2,'Value');
box_test(6)=get(handles.PATCH2,'Value');
index=find(box_test==1);
if isempty(index)
    msgbox_uvmat('ERROR','no selected operation')
    return
end
index_first=min(index);
index_last=max(index);
box_used=box_test([index_first : index_last]);
[box_missing,ind_missing]=min(box_used);
if isequal(box_missing,0)
    msgbox_uvmat('ERROR',['missing' cell2mat(operations(ind_missing))]);
    return
end

%root name
filebase=get(handles.displ_filebase,'String');
if isempty(filebase)||isequal(filebase,'')
    msgbox_uvmat('ERROR','no input files')
    return
end
%check mask if selecetd
if isequal(get(handles.get_mask_civ1,'Value'),1)
    maskname=get(handles.mask_civ1,'String');
    if ~exist(maskname,'file')
        get_mask_civ1_Callback(hObject, eventdata, handles);
    end
end
if isequal(get(handles.get_mask_fix1,'Value'),1)
    maskname=get(handles.mask_fix1,'String');
    if ~exist(maskname,'file')
     get_mask_fix1_Callback(hObject, eventdata, handles);
    end
end
if isequal(get(handles.get_mask_civ2,'Value'),1)
    maskname=get(handles.mask_civ2,'String');
    if ~exist(maskname,'file')
     get_mask_civ2_Callback(hObject, eventdata, handles);
    end
end
if isequal(get(handles.get_mask_fix2,'Value'),1)
    maskname=get(handles.mask_fix2,'String');
    if ~exist(maskname,'file')
     get_mask_fix2_Callback(hObject, eventdata, handles);
    end
end

%read names of the .exe file 
if box_test(1)==1 | box_test(3)==1 | box_test(4)==1 | box_test(6)==1 
    path_uvmat=which('uvmat');% check the path detected for source file uvmat
    path_UVMAT=fileparts(path_uvmat); %path to UVMAT
    if isunix
        %fid = fopen(fullfile(path_UVMAT,'PARAM_LINUX.txt'),'r');%open the file with civ binary names
        xmlfile=fullfile(path_UVMAT,'PARAM_LINUX.xml');
        if exist(xmlfile,'file')
            t=xmltree(xmlfile);
            sparam=convert(t);
        end
    else
        %fid = fopen(fullfile(path_UVMAT,'PARAM_WIN.txt'),'r');%open the file with civ binary names
        xmlfile=fullfile(path_UVMAT,'PARAM_WIN.xml');
        if exist(xmlfile,'file')
            t=xmltree(xmlfile);
            sparam=convert(t);
        end
    end 
    if isfield(sparam,'Civ1_exe')
        civ1_exe=sparam.Civ1_exe;
    end
    if isfield(sparam,'Civ2_exe')
        civ2_exe=sparam.Civ2_exe;
    end
    if isfield(sparam,'Patch_exe')
        patch_exe=sparam.Patch_exe;
    end
    if isfield(sparam,'Stinterp_exe')
        stinterp_exe=sparam.Stinterp_exe;
    end
    if isfield(sparam,'SGE')
        sge=str2num(sparam.SGE);
    end 
    if ~isunix % for windows system, check whether the Matlab working dir is a UBC name
        dircur=pwd;
        if ~isequal(dircur([2 3]),':\')
            msgbox_uvmat('ERROR','move to a Matlab current working directory with a Windows name, e.g. m:/...')
            return;
        end
    end
end

%initialize the waitbars
set(handles.waitbar_1,'Position',[0.946 0.877 0.03 0.001])
set(handles.waitbar_patch1,'Position',[0.946 0.626 0.03 0.001])
set(handles.waitbar_civ2,'Position',[0.946 0.406 0.03 0.001])
set(handles.waitbar_patch2,'Position',[0.946 0.187 0.03 0.001])
set(handles.RUN,'BackgroundColor',[0.831 0.816 0.784])
set(handles.RUN, 'Enable','Off')
drawnow

% get the list of file names and check the files
display('checking the files...')
[filecell,num1_civ1,num2_civ1,num_a_civ1,num_b_civ1,num1_civ2,num2_civ2,num_a_civ2,num_b_civ2,nom_type_nc,file_ref_fix1,file_ref_fix2]=...
       set_civ_filenames(handles,compare,box_test);
nbfield=numel(num1_civ1);
nbslice=size(num_a_civ1);

if isempty(filecell)
   set(handles.RUN, 'Enable','On')
    set(handles.RUN,'BackgroundColor',[1 0 0])
    set(handles.BATCH, 'Enable','On')
    set(handles.BATCH,'BackgroundColor',[1 0 0])
   return
end
display('files OK, processing...')   
nbfield=size(num1_civ1,2);
nbslice=size(num1_civ1,1);

%RUN CIV1
if box_test(1)==1
      RUN_CIV1(handles,filecell.ima1.civ1,filecell.ima2.civ1,filecell.nc.civ1,num1_civ1,num2_civ1,num_a_civ1,num_b_civ1,nom_type_nc)
      if compare==3
            RUN_CIV1(handles,filecell.imaA1.civ1,filecell.imaA2.civ1,filecell.ncA.civ1,num1_civ1,num2_civ1,num_a_civ1,num_b_civ1,nom_type_nc)
     end
end

%RUN FIX1
if box_test(2)==1 
    filebase=get(handles.displ_filebase,'String');
    %names of the civ1 fields
    field1.vel_type='civ1';
    field1.nb='nb_vectors';
    field1.X='vec_X';
    field1.Y='vec_Y';
    field1.U='vec_U';
    field1.V='vec_V';
    field1.fixflag='vec_FixFlag';
    flagindex(1)=get(handles.vec_Fmin2, 'Value');
    flagindex(2)=get(handles.vec_F3, 'Value');
    flagindex(3)=get(handles.vec_F2, 'Value');
    thresh_vecC=str2num(get(handles.thresh_vecC,'String'));%threshold on image correlation vec_C
    thresh_vel=str2num(get(handles.thresh_vel,'String'));%threshold on velocity modulus
    inf_sup=get(handles.inf_sup1,'Value');
    menu=get(handles.field_ref1,'String');
    index=get(handles.field_ref1,'Value');
    if isempty(menu)
        fieldchoice='';
    else
        fieldchoice=menu{index};
    end   
    h = waitbar(0,['removing velocity vectors, fix1']);% display a wait bar 
    test_mask=get(handles.get_mask_fix1,'Value');    
    if test_mask
        maskdispl=get(handles.mask_fix1,'String');
        if exist(maskdispl,'file')
            test_mask=2;
            maskname=maskdispl;
        else
            maskbase=[get(handles.displ_filebase,'String') '_' maskdispl]; % mask root name
        end
    end
    for ifile=1:nbfield
        waitbar(ifile/nbfield); %update the waitbar
        for j=1:nbslice
            if test_mask==0
                maskname='noFile use default';
                maskflag=0;
            elseif test_mask==1
                nbslice_mask=str2num(maskdispl(1:end-4)); % 
                num1_mask=mod(num1_civ1(ifile)-1,nbslice_mask)+1;
                maskname=name_generator(maskbase,num1_mask,1,'.png','_i');% mask corresponding to the first image of the pair
                maskflag= exist(maskname,'file')==2;
                if ~maskflag; 
                    maskname='noFile use default';
                end              
            end
            if ~isempty(file_ref_fix1)
                file_ref=file_ref_fix1{ifile,j};
            else
                file_ref='';
            end
            error=RUN_FIX(filecell.nc.civ1{ifile,j},field1,flagindex,1,thresh_vecC,maskflag,maskname,...
                                    thresh_vel,inf_sup,file_ref,fieldchoice);

            if compare==3 &&(isequal(mode,'pair j1-j2') || isequal(mode,'series(Dj)') || isequal(mode,'series(Di)'))
                 if test_mask==0  
                      maskname='noFile use default';
                      maskflag=0;
                 else
                     maskbase=[get(handles.displ_filebase2,'String') '_' maskdispl]; % mask root name
                     nbslice_mask=str2num(maskdispl(1:end-4)); % 
                     num1_mask=mod(num1_civ1(ifile)-1,nbslice_mask)+1;               
                     maskname=name_generator(maskbase,num1_mask,1,'.png','_i');
                     maskflag= exist(maskname,'file')==2;
                     if ~maskflag; 
                        maskname='noFile use default';
                     end
                 end
                 error=RUN_FIX(filecell.ncA.civ1{ifile,j},field1,flagindex,1,thresh_vecC,maskflag,maskname,...
                                    thresh_vel,inf_sup,file_ref,fieldchoice);
                 if ~isempty(error)
                    msgbox_uvmat('ERROR',error)
                    return
                 end             
            end
        end
    end
    close(h)
end

% RUN PATCH1
if box_test(3)==1
    rho_patch1=str2num(get(handles.rho_patch1,'String'));
    if isempty(rho_patch1)
        rho_patch1='1000';
        set(handles.rho_patch1,'String','1')
    else
        rho_patch1=num2str(1000*rho_patch1);
    end
    nx_patch1=get(handles.nx_patch1,'String');
    if isequal(str2num(nx_patch1),[])
         nx_patch1='50' ;%default
         set(handles.nx_patch1,'String','50');
    end
    ny_patch1=get(handles.ny_patch1,'String');
    if isequal(str2num(ny_patch1),[])
         ny_patch1='50' ;%default
         set(handles.ny_patch1,'String','50');
    end
    subdomain_patch1=get(handles.subdomain_patch1,'String');
    thresh_patch1=get(handles.thresh_patch1,'String');
    test_interp=get(handles.test_interp,'Value'); 
    icount=0;
    for ifile=1:nbfield
        for j=1:nbslice
            icount=icount+1;
            barlength=0.188*icount/(nbfield*nbslice);
            set(handles.waitbar_patch1,'Position',[0.946 0.627-barlength 0.03 barlength])
            drawnow
            if  isequal(get(handles.test_stereo1,'Value'),0)
                cmd=RUN_PATCH(filecell.nc.civ1{ifile,j},nx_patch1,ny_patch1,rho_patch1,subdomain_patch1,thresh_patch1,test_interp);
                s=-1;
                if sge
                    [s,w]=unix(['qrsh -q -fast.q ' cmd]);
                end
                if s~=0
                    display(['!' cmd])
                    eval(['!' cmd]);                  
                end

                %stereo case:
            elseif  isequal(get(handles.test_stereo1,'Value'),1)
                if exist('stinterp_exe','var')%Prog Gauthier
                    cmd=RUN_STINTERP(stinterp_exe,filecell.ncA.civ1{ifile,j},filecell.nc.civ1{ifile,j},filecell.st{ifile,j},...
                          nx_patch1,ny_patch1,rho_patch1,subdomain_patch1,thresh_patch1,[filebase_A '.xml'],[filebase_B '.xml']);
                    display(['!' cmd])
                    eval(['!' cmd]);       
                else
                    RUN_STLIN(filecell.ncA.civ1{ifile,j},filecell.nc.civ1{ifile,j},'civ1',filecell.st{ifile,j},...
                        str2num(nx_patch1),str2num(ny_patch1),str2num(thresh_patch1),[filebase_A '.xml'],[filebase_B '.xml']);
                end
            end
            if compare==3 && isequal(get(handles.test_stereo1,'Value'),0)
                cmd=RUN_PATCH(filecell.ncA.civ1{ifile,j},nx_patch1,ny_patch1,rho_patch1,subdomain_patch1,thresh_patch1,test_interp);
                s=-1;
                if sge
                    [s,w]=unix(['qrsh -q -fast.q ' cmd]);
                end
                if s~=0
                   display(['!' cmd])
                   eval(['!' cmd]);
                end
            end
        end
    end
end

% CIV2
if box_test(4)==1 
    RUN_CIV2(handles,filecell.ima1.civ2,filecell.ima2.civ2,filecell.nc.civ1,filecell.nc.civ2,num1_civ2,num2_civ2,...
        num_a_civ2,num_b_civ2,nom_type_nc)
end

% FIX2
if box_test(5)==1 
    %names of the civ2 fields
    field2.vel_type='civ2';
    field2.nb='nb_vectors2';
    field2.X='vec2_X';
    field2.Y='vec2_Y';
    field2.U='vec2_U';
    field2.V='vec2_V';
    field2.fixflag='vec2_FixFlag';
    flagindex(1)=get(handles.vec_Fmin2_2, 'Value');
    flagindex(2)=get(handles.vec_F3_2, 'Value');
    flagindex(3)=get(handles.vec_F4, 'Value');
    thresh_vec2C=str2num(get(handles.thresh_vec2C,'String'));%threshold on image correlation vec_C
    thresh_vel2=str2num(get(handles.thresh_vel2,'String'));%threshold on velocity modulus
    inf_sup=get(handles.inf_sup2,'Value');
    menu=get(handles.field_ref2,'String');
    index=get(handles.field_ref2,'Value');
    if isempty(menu)
        fieldchoice='';
    else
        fieldchoice=menu{index};
    end   
    h = waitbar(0,['removing velocity vectors, fix2']);% display a wait bar
    test_mask=get(handles.get_mask_fix2,'Value');
    if test_mask
        maskdispl=get(handles.mask_fix2,'String');
        if exist(maskdispl,'file')
            test_mask=2;
            maskname=maskdispl;
        else
            maskbase=[get(handles.displ_filebase,'String') '_' maskdispl]; % mask root name
        end
    end
    for ifile=1:nbfield
        waitbar(ifile/nbfield); %update the waitbar
        for j=1:nbslice       
           if test_mask==0 
                maskname='noFile use default';
                maskflag=0;
           elseif test_mask==1
                nbslice_mask=str2num(maskdispl(1:end-4)); % 
                num1_mask=mod(num1_civ2(ifile)-1,nbslice_mask)+1;
                maskname=name_generator(maskbase,num1_mask,1,'.png','_i');
                maskflag= exist(maskname,'file')==2;
                if ~maskflag; 
                      maskname='noFile use default';
                end
            end
            if ~isempty(file_ref_fix2)
                file_ref=file_ref_fix2{ifile,j};
            else
                file_ref='';
            end
            error=RUN_FIX(filecell.nc.civ2{ifile,j},field2,flagindex,2,thresh_vec2C,maskflag,maskname,...
                                    thresh_vel2,inf_sup,file_ref,fieldchoice); 
            if ~isempty(error)
                msgbox_uvmat('ERROR',error)
                return
            end  
            if compare==3
                 if test_mask==0  
                      maskname='noFile use default';
                      maskflag=0;
                 else
                      maskbase=[get(handles.displ_filebase2,'String') '_' maskdispl]; % mask root name
                      nbslice_mask=str2num(maskdispl(1:end-4)); % 
                      num1_mask=mod(num1_civ2(ifile)-1,nbslice_mask)+1;
                      maskname=name_generator(maskbase,num1_mask,1,'.png','_i');
                      maskflag= exist(maskname,'file')==2;
                      if ~maskflag; 
                         maskname='noFile use default';
                      end
                 end
                 error=RUN_FIX(filecell.ncA.civ2{ifile,j},field2,flagindex,1,thresh_vec2C,maskflag,maskname,...
                                    thresh_vel2,inf_sup,file_ref,fieldchoice);
                 if ~isempty(error)
                    msgbox_uvmat('ERROR',error)
                    return
                 end  
            end
        end
    end
    close(h)
end

%PATCH 2
if box_test(6)==1
    rho_patch2=str2num(get(handles.rho_patch2,'String'));
    if isempty(rho_patch2)
        rho_patch2='1000';
        set(handles.rho_patch2,'String','1')
    else
        rho_patch2=num2str(1000*rho_patch2);
    end
    nx_patch2=get(handles.nx_patch2,'String');
    ny_patch2=get(handles.ny_patch2,'String');
    thresh_patch2=get(handles.thresh_patch2,'String');
    if isequal(str2num(nx_patch2),[])
         nx_patch2='50' ;%default
         set(handles.nx_patch2,'String','50');
    end
    if isequal(str2num(ny_patch2),[])
         ny_patch2='50' ;%default
         set(handles.ny_patch2,'String','50');
    end
    subdomain_patch2=get(handles.subdomain_patch2,'String');
    icount=0;
    for ifile=1:nbfield
        for j=1:nbslice
            icount=icount+1;
            barlength=0.188*icount/(nbfield*nbslice);
            set(handles.waitbar_patch2,'Position',[0.946 0.188-barlength 0.03 barlength])
            drawnow
            if compare~=3 | isequal(get(handles.test_stereo2,'Value'),0)
                cmd=RUN_PATCH(filecell.nc.civ2{ifile,j},nx_patch2,ny_patch2,rho_patch2,subdomain_patch2,1,0);
                s=-1;
                if sge
                    [s,w]=unix(['qrsh -q -fast.q ' cmd]);
                end
                if s~=0
                    display(['!' cmd])
                    eval(['!' cmd]);
                end
            elseif compare==3 &&  isequal(get(handles.test_stereo2,'Value'),1)
               if exist('stinterp_exe','var')%Prog Gauthier  
                   cmd=RUN_STINTERP(stinterp_exe,filecell.ncA.civ2{ifile,j},filecell.nc.civ2{ifile,j},filecell.st{ifile,j},...
                   nx_patch2,ny_patch2,rho_patch2,subdomain_patch2,thresh_patch2,[filebase_A '.xml'],[filebase_B '.xml']);
                   display(['!' cmd])
                   eval(['!' cmd])
               else
                   RUN_STLIN(filecell.ncA.civ2{ifile,j},filecell.nc.civ2{ifile,j},'civ2',filecell.st{ifile,j},...
                   str2num(nx_patch2),str2num(ny_patch2),str2num(thresh_patch2),[filebase_A '.xml'],[filebase_B '.xml'])
               end
            end    
            if compare==3 && isequal(get(handles.test_stereo2,'Value'),0)
                cmd=RUN_PATCH(filecell.ncA.civ2{ifile,j},nx_patch2,ny_patch2,rho_patch2,subdomain_patch2,1,0);
                s=-1;
                if sge
                    [s,w]=unix(['qrsh -q -fast.q ' cmd]);
                end
                if s~=0
                    display(['!' cmd])
                    eval(['!' cmd]);
                end
            end
        end
    end
end

set(handles.RUN, 'Enable','On')
set(handles.RUN,'BackgroundColor',[1 0 0])

%save the current interface setting as figure namefig, append .0 to the name if it already exists
if isfield(filecell,'st')
    fileresu=filecell.st{1,1};
elseif isfield(filecell,'nc')
    if isfield(filecell.nc,'civ2')
        fileresu=filecell.nc.civ2{1,1};
    else
        fileresu=filecell.nc.civ1{1,1};
    end
end
[RootPath,RootFile,field_count,str2,str_a,str_b,ext,nom_type,subdir]=name2display(fileresu);
namedoc=fullfile(RootPath,subdir,RootFile);
detect=1; 
while detect==1
    namefigfull=[namedoc '.fig'];
    hh=dir(namefigfull);
    if ~isempty(hh)
        detect=1;
        namedoc=[namedoc '.0'];
    else
        detect=0;
    end
end
saveas(gcbf,namefigfull);%save the interface with name namefigfull (A CHANGER EN FICHIER  .xml)

%------------------------------------------------------------------------
% --- Executes on button press in BATCH: remote processing
function BATCH_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
global civ1_exe civ2_exe patch_exe patch_new_exe fix_exe todo_path sge Civ_exe
compare=get(handles.compare,'Value');%test for usual PIV (compare=1) or displacement (=2) or stereo PIV (=3)

%check the list of operations:
operations={'CIV1','FIX1','PATCH1','CIV2','FIX2','PATCH2'};
run_flag=1;
box_test(1)=get(handles.CIV1,'Value');
box_test(2)=get(handles.FIX1,'Value');
box_test(3)=get(handles.PATCH1,'Value');
box_test(4)=get(handles.CIV2,'Value');
box_test(5)=get(handles.FIX2,'Value');
box_test(6)=get(handles.PATCH2,'Value');
index=find(box_test==1);
if isempty(index)
    msgbox_uvmat('ERROR','no selected operation')
    return
end
index_first=min(index);
index_last=max(index);
box_used=box_test([index_first : index_last]);
[box_missing,ind_missing]=min(box_used);
if isequal(box_missing,0)
    msgbox_uvmat('ERROR',['missing' cell2mat(operations(ind_missing))]);
    return
end

%root name
filebase=get(handles.displ_filebase,'String');
if isempty(filebase)||isequal(filebase,'')
    msgbox_uvmat('ERROR','no input files')
    return
end
    
%check mask if selecetd
if isequal(get(handles.get_mask_civ1,'Value'),1)
    maskname=get(handles.mask_civ1,'String');
    if ~exist(maskname,'file')
        get_mask_civ1_Callback(hObject, eventdata, handles);
    end
end
if isequal(get(handles.get_mask_fix1,'Value'),1)
    maskname=get(handles.mask_fix1,'String');
    if ~exist(maskname,'file')
        get_mask_fix1_Callback(hObject, eventdata, handles);
    end
end
if isequal(get(handles.get_mask_civ2,'Value'),1)
    maskname=get(handles.mask_civ2,'String');
    if ~exist(maskname,'file')
     get_mask_civ2_Callback(hObject, eventdata, handles);
    end
end
if isequal(get(handles.get_mask_fix2,'Value'),1)
    maskname=get(handles.mask_fix2,'String');
    if ~exist(maskname,'file')
     get_mask_fix2_Callback(hObject, eventdata, handles);
    end
end

%read names of the .exe file
path_uvmat=which('uvmat');% check the path detected for source file uvmat
path_UVMAT=fileparts(path_uvmat); %path to UVMAT
if isunix
    xmlfile=fullfile(path_UVMAT,'PARAM_LINUX.xml');
    if exist(xmlfile,'file')
        t=xmltree(xmlfile);
        sparam=convert(t);
    end
else
    xmlfile=fullfile(path_UVMAT,'PARAM_WIN.xml');
    if exist(xmlfile,'file')
        t=xmltree(xmlfile);
        sparam=convert(t);
    end
end
sge=0;
if isfield(sparam,'Civ_exe')
    Civ_exe=sparam.Civ_exe;
end
if isfield(sparam,'Civ1_exe')
    civ1_exe=sparam.Civ1_exe;
end
if isfield(sparam,'Civ2_exe')
    civ2_exe=sparam.Civ2_exe;
end
if isfield(sparam,'Patch_exe')
    patch_exe=sparam.Patch_exe;
end
 if isfield(sparam,'PatchNew_exe')
    patch_new_exe=sparam.PatchNew_exe;
 end
 if isfield(sparam,'Fix_exe')
    fix_exe=sparam.Fix_exe;
 end
 if isfield(sparam,'Todo_path')
    todo_path=sparam.Todo_path;
 end
if isfield(sparam,'SGE')
    sge=str2num(sparam.SGE);
end 

%choice of batch priority
ind_answer=2;
if sge
    [s,w]=unix('qstat -q civ.q|grep job_| wc -l'); %check the waiting list (command unix)
    if isequal(s,0)
        w(end)=[];
        str_displ={[w ' jobs in the waiting list'];'Select a priority:'};
        str={'urgent';'normal';'low'};
        [ind_answer,v] = listdlg('PromptString',str_displ,...
                'SelectionMode','single',...
                'ListString',str,'ListSize',[200 200],'Name','job priority','InitialValue',3);
        if isequal(v,0) % to handle Cancel button and figure close,  
           return % a better way should be create
        end
    else
        msgbox_uvmat('ERROR','batch system not available')
        return
    end
end

%initialize the waitbars
set(handles.waitbar_1,'Position',[0.946 0.876 0.03 0.001])
set(handles.waitbar_patch1,'Position',[0.946 0.439 0.03 0.001])
set(handles.waitbar_civ2,'Position',[0.946 0.219 0.03 0.001])
set(handles.waitbar_patch2,'Position',[0.946 0.0 0.03 0.001])
set(handles.BATCH, 'Enable','Off')
set(handles.BATCH,'BackgroundColor',[0.831 0.816 0.784])
drawnow
%get the filename root, nomenclature and numbers

% for Windows system find the UBC path name if needed
if ~isunix & isequal(todo_path(1:2),'\\') & isequal(filebase(2:3),':\')
    cur_dir=pwd;
    if ~isequal(cur_dir(2:3),':\')
        cd(matlabroot); %move to the Matlab root directory if the current Matlab dir does not allow the dos command or is M: 
    end
    [ss,ww]=dos(['net use ' filebase(1:2)]);
    if isequal(ss,0)
        rankpath=findstr(ww,'\\');
        if ~isempty(rankpath)
            wwrest=ww(rankpath:end);
            rankend=min(find(double(wwrest)==10))-1;
            filebase=[wwrest(1:rankend) filebase(3:end)];
            set(handles.displ_filebase,'String',filebase);
        end
    else
         msgbox_uvmat('ERROR','for BATCH option, UBC file names, beginning by \\, are needed');
         set(handles.BATCH, 'Enable','On')
         set(handles.BATCH,'BackgroundColor',[1 0 0])
         return
    end
end

% set the list of files and check them
display('checking the files...')
[filecell,num1_civ1,num2_civ1,num_a_civ1,num_b_civ1,num1_civ2,num2_civ2,num_a_civ2,num_b_civ2,nom_type_nc,file_ref_fix1,file_ref_fix2]=...
       set_civ_filenames(handles,compare,box_test);
 
display('files OK, processing...')  
nbfield=numel(num1_civ1);
nbslice=numel(num_a_civ1);

%GET PARAMETERS:
  %get civ parameters
if box_test(1)==1
    par_civ1=read_param_civ1(handles,filecell.ima1.civ1{1,1});
end 

%get fix1 parameters
if box_test(2)==1 
    flagindex1(1)=get(handles.vec_Fmin2, 'Value');
    flagindex1(2)=get(handles.vec_F3, 'Value');
    flagindex1(3)=get(handles.vec_F2, 'Value');
    thresh_vecC1=str2num(get(handles.thresh_vecC,'String'));%threshold on image correlation vec_C
    thresh_vel1=str2num(get(handles.thresh_vel,'String'));%threshold on velocity modulus
    test_mask=get(handles.get_mask_fix1,'Value');
    nbslice_mask=get(handles.mask_fix1,'UserData'); % get the number of slices (= number of masks)
    %%%%%%%%%%%%%COMPLETER LE PROGRAMME FIX
%     inf_sup=get(handles.inf_sup1,'Value');
%     fileref=get(handles.ref_fix1,'String');
%     refpath=get(handles.ref_fix1,'UserData');
%     fileref=fullfile(refpath,fileref);
    menu=get(handles.field_ref1,'String');
    index=get(handles.field_ref1,'Value');
    if isempty(menu)
        fieldchoice='';
    else
        fieldchoice=menu{index};
         msgbox_uvmat('WARNING','reference field is not used presently with batch, use RUN option')
    end   
end
 
 %get patch1 parameters
 if box_test(3)==1
        rho_patch1=str2num(get(handles.rho_patch1,'String'));
        if isempty(rho_patch1)
            rho_patch1='1000';
            set(handles.rho_patch1,'String','1')
        else
            rho_patch1=num2str(1000*rho_patch1);
        end
        nx_patch1=get(handles.nx_patch1,'String');
        ny_patch1=get(handles.ny_patch1,'String');
        if isequal(str2num(nx_patch1),[])
            nx_patch1='50' ;%default
            set(handles.nx_patch1,'String','50');
        end
        if isequal(str2num(ny_patch1),[])
            ny_patch1='50' ;%default
            set(handles.ny_patch1,'String','50');
        end
        subdomain_patch1=get(handles.subdomain_patch1,'String');
        thresh_patch1=get(handles.thresh_patch1,'String');
        test_interp=get(handles.test_interp,'Value');
 end
 
 %get civ2 parameters
if box_test(4)==1
    par_civ2=read_param_civ2(handles,cell2mat(filecell.ima1.civ2(1,1)));
end

%get fix2 parameters
if box_test(5)==1 
    flagindex2(1)=get(handles.vec_Fmin2_2, 'Value');
    flagindex2(2)=get(handles.vec_F3_2, 'Value');
    flagindex2(3)=get(handles.vec_F4, 'Value');
    thresh_vec2C=str2num(get(handles.thresh_vec2C,'String'));%threshold on image correlation vec_C
    thresh_vel2=str2num(get(handles.thresh_vel2,'String'));%threshold on velocity modulus
    test_mask=get(handles.get_mask_fix2,'Value');
    nbslice_mask=get(handles.mask_fix2,'UserData'); % get the number of slices (= number of masks)
        %%%%%%%%%%%%%COMPLETER LE PROGRAMME FIX AVEC REF FILE ET OPTION inf_sup=2
%     inf_sup=get(handles.inf_sup2,'Value');
%     ref=get(handles.ref_fix2,'UserData');

    %%%%%%%%%%%%%%%%%%%
end


%get patch2 parameters
if box_test(6)==1
    rho_patch2=str2num(get(handles.rho_patch2,'String'));
    if isempty(rho_patch2)
        rho_patch2='1000';
        set(handles.rho_patch2,'String','1')
    else
        rho_patch2=num2str(1000*rho_patch2);
    end
    nx_patch2=get(handles.nx_patch2,'String');
    ny_patch2=get(handles.ny_patch2,'String');
    if isequal(str2num(nx_patch2),[])
        nx_patch2='50' ;%default
        set(handles.nx_patch2,'String','50');
    end
    if isequal(str2num(ny_patch2),[])
        ny_patch2='50' ;%default
        set(handles.ny_patch2,'String','50');
    end
    subdomain_patch2=get(handles.subdomain_patch2,'String');
    thresh_patch2=get(handles.thresh_patch2,'String');
             test_interp=get(handles.test_interp,'Value');
end

if ~sge
       
    %OPEN THE WAIT LIST FOR BATCH PROCESSES
    name_lock=fullfile(todo_path,'lock'); %lock file 
    iwait=0;
    while(exist(name_lock) & iwait<15)
        pause(1); %wait 1 second
        iwait=iwait+1;
    end
    if iwait==15
        msgbox_uvmat('ERROR',['I''m tired to wait for the lock file, please delete it then click again on BATCH' name_lock ])
        set(handles.BATCH, 'Enable','On')
        set(handles.BATCH,'BackgroundColor',[1 0 0])
        return
    end
    p0=fopen(name_lock,'w'); %create the file name_lock: prevents other users to interfere
    name_todo=fullfile(todo_path,'TODO.txt');
    p1=fopen(name_todo,'a');
    if (p1<0)
        msgbox_uvmat('ERROR',['error in opening ' name_todo])
        set(handles.BATCH, 'Enable','On')
        set(handles.BATCH,'BackgroundColor',[1 0 0])
        return;
    end
end

%MAIN LOOP
% for ifile=1:nbfield
p1text=[];%initiate command text
time=get(handles.displ_filebase,'UserData'); %get the set of times
civAll=get(handles.Experimental,'Value'); % Boolean for new civ excution method 
'TESTbatch'
size(filecell.nc.civ1)
nbslice
nbfield
for ifile=1:nbfield
    for j=1:nbslice
        i_cmd=0; 
        cmd='';
        if sge
           %fid=fopen([filename '.cmx'],'w')
           cmd='#!/bin/bash';
           cmd=[cmd '\n' '#$ -cwd'];
           cmd=[cmd '\n' 'hostname && date'];
        end
        if civAll
            civAllxml=xmltree;% xml contents,  all parameters
            civAllCmd=[];
            civAllxml=set(civAllxml,1,'name','CivDoc');
        end
%         filecell.nc.civ1
        filename_cmx=filecell.nc.civ1{ifile,j}%output netcdf file
        filename_cmx(end-1:end)='cm';%name of cmx file
        filename_cmx=[filename_cmx 'x'];
        
   %CIV1
        if box_test(1)==1
            par_civ1.filename_ima_a=filecell.ima1.civ1{ifile,j};
           % par_civ1.filename_ima_a([end-3:end])=[];%remove .png extension
            par_civ1.filename_ima_b=filecell.ima2.civ1{ifile,j};
           % par_civ1.filename_ima_b([end-3:end])=[];%remove .png extension
         
            namelog=[filename_cmx([1:end-3]) 'log'];
            par_civ1.Dt=num2str(time(num2_civ1(ifile),num_b_civ1(j))-time(num1_civ1(ifile),num_a_civ1(j)));
            par_civ1.T0=num2str((time(num2_civ1(ifile),num_b_civ1(j))+time(num1_civ1(ifile),num_a_civ1(j)))/2); 
            par_civ1.term_a=num2stra(num_a_civ1(j),nom_type_nc);%UTILITE?
            par_civ1.term_b=num2stra(num_b_civ1(j),nom_type_nc);% 
            test_mask=get(handles.get_mask_civ1,'Value');
            if test_mask==0  
                par_civ1.maskname='noFile use default';
                par_civ1.maskflag='n';
            else
                maskdispl=get(handles.mask_civ1,'String');
                if exist(maskdispl,'file')
                    par_civ1.maskname=maskdispl;
                    par_civ1.maskflag='y';   
                else
                    maskbase=[filebase '_' maskdispl]; % 
                    nbslice_mask=str2num(maskdispl(1:end-4)); % 
                    num1_mask=mod(num1_civ1(ifile)-1,nbslice_mask)+1;
                    par_civ1.maskname=name_generator(maskbase,num1_mask,1,'.png','_i');
                    if exist(par_civ1.maskname,'file')
                        par_civ1.maskflag='y'; 
                    else
                        par_civ1.maskname='noFile use default';
                        par_civ1.maskflag='n'; 
                    end
                end
            end
            
            %TESTgrid
            test_grid=get(handles.browse_gridciv1,'Value');
            if test_grid
                par_civ1.gridflag='y';
                gridname=get(handles.grid_civ1,'String');
                if isequal(gridname(end-3:end),'grid')
                    nbslice_grid=str2num(gridname(1:end-4)); %
                    if ~isempty(nbslice_grid)
                        num1_grid=mod(num1_civ1(ifile)-1,nbslice_grid)+1;
                        par_civ1.gridname=[filebase '_' name_generator(gridname,num1_grid,1,'.grid','_i')];
                        if ~exist(par_civ1.gridname,'file')
                           msgbox_uvmat('ERROR','grid file absent for civ1') 
                        end
                    elseif exist(gridname,'file')
                        par_civ1.gridname=gridname; 
                    else
                        msgbox_uvmat('ERROR','grid file absent for civ1')
                    end
                end
            else
                  par_civ1.gridname='noFile use default';
                  par_civ1.gridflag='n';
            end
            %endTESTgrid
            
            i_cmd=i_cmd+1;
            if isequal(civAll,0)
                cmd=[cmd '\n' BATCH_CIV1(filename_cmx(1:end-4),namelog,par_civ1,handles)];
            else
                 civAllCmd=[civAllCmd ' civ1 '];
                 str=BATCH_CIV1_Unified(filename_cmx([1:end-4]),namelog,par_civ1);
                 fieldnames=fields(str);
                [civAllxml,uid_civ1]=add(civAllxml,1,'element','civ1');
                for ilist=1:length(fieldnames)
                  val=eval(['str.' fieldnames{ilist}]);
                  if ischar(val)
                    [civAllxml,uid_t]=add(civAllxml,uid_civ1,'element',fieldnames{ilist});
                    [civAllxml,uid_t2]=add(civAllxml,uid_t,'chardata',val);
                   end
                end   
            end
        end
        
   % FIX1
       if box_test(2)==1
           test_mask=get(handles.get_mask_fix1,'Value');
           if test_mask==0
                maskname='';
           else
                maskdispl=get(handles.mask_fix1,'String');
                nbslice_mask=str2num(maskdispl(1:end-4)); % 
                num1_mask=mod(num1_civ1(ifile)-1,nbslice_mask)+1;
                maskbase=[filebase '_' maskdispl];
                maskname=name_generator(maskbase,num1_mask,1,'.png','_i');
           end
           if isequal(civAll,0)
           cmd_FIX=[fix_exe ' -f ' filecell.nc.civ1{ifile,j} ' -fi1 ' num2str(flagindex1(1)) ...
                   ' -fi2 ' num2str(flagindex1(2)) ' -fi3 ' num2str(flagindex1(3)) ...
                   ' -threshC ' num2str(thresh_vecC1) ' -threshV ' num2str(thresh_vel1) ' -maskName ' maskname];
           cmd=[cmd '\n' cmd_FIX];
           else
                fix1.inputFileName=filecell.nc.civ1{ifile,j} ;
                fix1.fi1=num2str(flagindex1(1));
                fix1.fi2=num2str(flagindex1(2));
                fix1.fi3=num2str(flagindex1(3));
                fix1.threshC=num2str(thresh_vecC1);
                fix1.threshV=num2str(thresh_vel1);                 
                fieldnames=fields(fix1);
                [civAllxml,uid_fix1]=add(civAllxml,1,'element','fix1');
                for ilist=1:length(fieldnames)
                  val=eval(['fix1.' fieldnames{ilist}]);
                  if ischar(val)
                    [civAllxml,uid_t]=add(civAllxml,uid_fix1,'element',fieldnames{ilist});
                    [civAllxml,uid_t2]=add(civAllxml,uid_t,'chardata',val);
                   end
                end 
             civAllCmd=[civAllCmd ' fix1 '];           
           end          
       end
   
    %PATCH1
    if box_test(3)==1
        if isequal(civAll,0)
            cmd_PATCH=RUN_PATCH(filecell.nc.civ1{ifile,j},nx_patch1,ny_patch1,rho_patch1,subdomain_patch1,thresh_patch1,test_interp);
            cmd=[cmd '\n' cmd_PATCH];
        else
            patch1.inputFileName=filecell.nc.civ1{ifile,j} ;
            patch1.nopt=subdomain_patch1;
            patch1.maxdiff=thresh_patch1;
            patch1.ro=rho_patch1;
            test_grid=get(handles.get_gridpatch1,'Value');
            if test_grid
                 patch1.gridflag='y';
                gridname=get(handles.grid_patch1,'String');
                if isequal(gridname(end-3:end),'grid')
                    nbslice_grid=str2num(gridname(1:end-4)); %
                    if ~isempty(nbslice_grid)
                        num1_grid=mod(num1_civ1(ifile)-1,nbslice_grid)+1;
                        patch1.gridPatch=[filebase '_' name_generator(gridname,num1_grid,1,'.grid','_i')];
                        if ~exist(patch1.gridPatch,'file')
                           msgbox_uvmat('ERROR','grid file absent for patch1') 
                        end
                    elseif exist(gridname,'file')
                        patch1.gridPatch=gridname; 
                    else
                        msgbox_uvmat('ERROR','grid file absent for patch1')
                    end
                end
            else
                   patch1.gridPatch='n';
                   patch1.gridflag='n';
                  patch1.m=nx_patch1;
                  patch1.n=ny_patch1;
            end
            patch1.convectFlow='n';
               fieldnames=fields(patch1);
                [civAllxml,uid_patch1]=add(civAllxml,1,'element','patch1');
                for ilist=1:length(fieldnames)
                  val=eval(['patch1.' fieldnames{ilist}]);
                  if ischar(val)
                    [civAllxml,uid_t]=add(civAllxml,uid_patch1,'element',fieldnames{ilist});
                    [civAllxml,uid_t2]=add(civAllxml,uid_t,'chardata',val);
                   end
                end             
            civAllCmd=[civAllCmd ' patch1 '];
        end
    end
    
    if box_test(4)==1 | box_test(5)==1 | box_test(6)==1
        filename_cmx=filecell.nc.civ2{ifile,j};%output netcdf file
        filename_cmx([end-1:end])=[ 'cm'];%name of cmx file
        filename_cmx=[filename_cmx 'x'];
    end
    
    if box_test(4)==1
            par_civ2.filename_ima_a=filecell.ima1.civ2{ifile,j};
            %par_civ2.filename_ima_a([end-3:end])=[];%remove .png extension
            par_civ2.filename_ima_b=filecell.ima2.civ2{ifile,j};
            %par_civ2.filename_ima_b([end-3:end])=[];%remove .png extension
            namelog=[filename_cmx([1:end-3]) 'log'];
            par_civ2.Dt=num2str(time(num2_civ2(ifile),num_b_civ2(j))-time(num1_civ2(ifile),num_a_civ2(j)));
            par_civ2.T0=num2str((time(num2_civ1(ifile),num_b_civ2(j))+time(num1_civ2(ifile),num_a_civ2(j)))/2); 
            par_civ2.term_a=num2stra(num_a_civ2(j),nom_type_nc);
            par_civ2.term_b=num2stra(num_b_civ2(j),nom_type_nc);         
            par_civ2.filename_nc1=filecell.nc.civ1{ifile,j};
            par_civ2.filename_nc1([end-2:end])=[]; % remove '.nc'
            test_mask=get(handles.get_mask_civ2,'Value');
            if test_mask==0 
                par_civ2.maskname='noFile use default';
                par_civ2.maskflag='n';
            else
                maskdispl=get(handles.mask_civ2,'String');
                if exist(maskdispl,'file')
                    par_civ2.maskname=maskdispl;
                    par_civ2.maskflag='y';
                else
                    maskbase=[filebase '_' maskdispl]; % 
                    nbslice_mask=str2num(maskdispl(1:end-4)); % 
                    num1_mask=mod(num1_civ2(ifile)-1,nbslice_mask)+1;
                    par_civ2.maskname=name_generator(maskbase,num1_mask,1,'.png','_i');
                    if exist(par_civ2.maskname,'file')
                        par_civ2.maskflag='y'; 
                    else
                        par_civ2.maskname='noFile use default';
                        par_civ2.maskflag='n'; 
                    end
                end
            end
            %TESTgrid
            test_grid=get(handles.browse_gridciv2,'Value');
            gridname=get(handles.grid_civ2,'String');
            gridflag='y';
            if numel(gridname)>=4 && isequal(gridname(end-3:end),'grid')
                nbslice_grid=str2num(gridname(1:end-4)); %
                if ~isempty(nbslice_grid)
                    par_civ2.gridflag='y';
                    num1_grid=mod(num1_civ2(ifile)-1,nbslice_grid)+1;
                    par_civ2.gridname=[filebase '_' name_generator(gridname,num1_grid,1,'.grid','_i')];
                    if exist(par_civ2.gridname,'file')
                        par_civ2.gridflag='y'; 
                    else
                        par_civ2.gridname='noFile use default';
                        par_civ2.gridflag='n'; 
                    end
                elseif exist(gridname,'file')
                    par_civ2.gridflag='y'; 
                else
                    par_civ2.gridname='noFile use default';
                    par_civ2.gridflag='n'; 
                end
            end
            %endTESTgrid
            i_cmd=i_cmd+1;
            cmd_CIV2=BATCH_CIV2(filename_cmx,namelog,par_civ2);
            if isequal(civAll,0)
                if(isunix)
                    cmd=[cmd '\n' 'cp -f ' filename_cmx '2 ' filename_cmx '\n' cmd_CIV2];
                else
                    cmd=[cmd '\n' 'copy /Y ' filename_cmx '2 ' filename_cmx '\n' cmd_CIV2];
                end
            else
                 civAllCmd=[civAllCmd ' civ2 '];
                 str=BATCH_CIV2_Unified(filename_cmx([1:end-4]),namelog,par_civ2);
                 fieldnames=fields(str);
                [civAllxml,uid_civ2]=add(civAllxml,1,'element','civ2');
                for ilist=1:length(fieldnames)
                    val=eval(['str.' fieldnames{ilist}]);
                    if ischar(val)
                       [civAllxml,uid_t]=add(civAllxml,uid_civ2,'element',fieldnames{ilist});
                       [civAllxml,uid_t2]=add(civAllxml,uid_t,'chardata',val);
                    end
                end   
            end
     end
     
     % FIX2
     if box_test(5)==1
           test_mask=get(handles.get_mask_fix2,'Value');    
            if test_mask==0  
                maskname=''; %no mask used 
            else
                maskdispl=get(handles.mask_fix2,'String');
                maskbase=[filebase '_' maskdispl]; % 
                nbslice_mask=str2num(maskdispl(1:end-4)); % 
                num1_mask=mod(num1_civ2(ifile)-1,nbslice_mask)+1;
                maskname =name_generator(maskbase,num1_mask,1,'.png','_i');
            end                  
           if isequal(civAll,0)
                cmd_FIX=[fix_exe ' -f ' filecell.nc.civ2{ifile,j} ' -fi1 ' num2str(flagindex2(1)) ...
                   ' -fi2 ' num2str(flagindex2(2)) ' -fi3 ' num2str(flagindex2(3)) ...
                   ' -threshC ' num2str(thresh_vec2C) ' -threshV ' num2str(thresh_vel2) ' -maskName ' maskname];
                cmd=[cmd '\n' cmd_FIX];
           else                      
                fix2.inputFileName=filecell.nc.civ2{ifile,j} ;
                fix2.fi1=num2str(flagindex2(1));
                fix2.fi2=num2str(flagindex2(2));
                fix2.fi3=num2str(flagindex2(3));
                fix2.threshC=num2str(thresh_vec2C);
                fix2.threshV=num2str(thresh_vel2);                 
                fieldnames=fields(fix2);
                [civAllxml,uid_fix2]=add(civAllxml,1,'element','fix2');
                for ilist=1:length(fieldnames)
                  val=eval(['fix2.' fieldnames{ilist}]);
                  if ischar(val)
                    [civAllxml,uid_t]=add(civAllxml,uid_fix2,'element',fieldnames{ilist});
                    [civAllxml,uid_t2]=add(civAllxml,uid_t,'chardata',val);
                   end
                end 
                civAllCmd=[civAllCmd ' fix2 '];           
           end 
       end
       
     %PATCH2
       if box_test(6)==1
            if isequal(civAll,0)
                cmd_PATCH=RUN_PATCH(filecell.nc.civ2{ifile,j},nx_patch2,ny_patch2,rho_patch2,subdomain_patch2,thresh_patch2,test_interp);
                cmd=[cmd '\n' cmd_PATCH];
            else
                patch2.inputFileName=filecell.nc.civ1{ifile,j} ;
                patch2.nopt=subdomain_patch1;
                patch2.maxdiff=thresh_patch1;
                patch2.ro=rho_patch1;
                test_grid=get(handles.get_gridpatch2,'Value');
                if test_grid
                    patch2.gridflag='y';
                    gridname=get(handles.grid_patch2,'String');
                    if isequal(gridname(end-3:end),'grid')
                        nbslice_grid=str2num(gridname(1:end-4)); %
                        if ~isempty(nbslice_grid)
                            num1_grid=mod(num1_civ2(ifile)-1,nbslice_grid)+1;
                            patch2.gridPatch=[filebase '_' name_generator(gridname,num1_grid,1,'.grid','_i')];
                            if ~exist(patch2.gridPatch,'file')
                               msgbox_uvmat('ERROR','grid file absent for patch2') 
                            end
                        elseif exist(gridname,'file')
                            patch2.gridPatch=gridname; 
                        else
                            msgbox_uvmat('ERROR','grid file absent for patch2')
                        end
                    end
                else
                      patch2.gridPatch='n';
                      patch2.gridflag='n';
                      patch2.m=nx_patch2;
                      patch2.n=ny_patch2;
                end
                patch2.convectFlow='n';
                fieldnames=fields(patch2);
                [civAllxml,uid_patch2]=add(civAllxml,1,'element','patch2');
                for ilist=1:length(fieldnames)
                   val=eval(['patch2.' fieldnames{ilist}]);
                   if ischar(val)
                      [civAllxml,uid_t]=add(civAllxml,uid_patch2,'element',fieldnames{ilist});
                      [civAllxml,uid_t2]=add(civAllxml,uid_t,'chardata',val);
                   end
                end             
                civAllCmd=[civAllCmd ' patch2 '];
            end     
        end
        if isequal(civAll,1)
            save(civAllxml,[filename_cmx([1:end-4]) '.xml']);
            cmd=char({cmd;[Civ_exe ' -f ' [filename_cmx([1:end-4]) '.xml'] ' ' civAllCmd]});
        end
      % create the .bat file:
        if sge
                [Rootbat,Filebat,extbat]=fileparts(filename_cmx);
                filename_bat=fullfile(Rootbat,['job_' Filebat extbat]);
        else
            filename_bat=filename_cmx;
        end
        filename_bat(end-2:end)='bat';
        fid=fopen(filename_bat,'w');
        fprintf(fid,cmd);
        fclose(fid);
        %dlmwrite(filename_bat,cmd,'');%write commands in filename_bat
        if sge
            pvalue=num2str((1-ind_answer)*500);
            namelog=[filename_bat '.patch.log'];
            ['!qsub -p ' pvalue ' -q civ.q -e ' filename_cmx(1:end-4) '.errors -o ' filename_cmx(1:end-4) '.log' ' ' filename_bat];
            eval(  ['!qsub -p ' pvalue ' -q civ.q -e ' filename_cmx(1:end-4) '.errors -o ' filename_cmx(1:end-4) '.log' ' ' filename_bat]);
        else
            if(isunix)
              cmdtodo=['. ' filename_bat ];%removed for Mathieu tests %' && rm -f ' filename_bat] ;
            else
               cmdtodo=[filename_bat];%removed for Mathieu tests %' && del /F /Q ' filename_bat' ;
            end
            count= fprintf(p1,'%s\n', cmdtodo);
        end
     end
end
if ~sge
    fclose(p1);
    fclose(p0);
    delete(name_lock);
end

set(handles.BATCH, 'Enable','On')
set(handles.BATCH,'BackgroundColor',[1 0 0])

%save interface state
if isfield(filecell,'nc')
    if isfield(filecell.nc,'civ2')
        fileresu=filecell.nc.civ2{1,1};
    else
        fileresu=filecell.nc.civ1{1,1};
    end
end
[RootPath,RootFile,field_count,str2,str_a,str_b,ext,nom_type,subdir]=name2display(fileresu);
namedoc=fullfile(RootPath,subdir,RootFile);
detect=1; 
while detect==1
    namefigfull=[namedoc '.fig'];
    hh=dir(namefigfull);
    if ~isempty(hh)
        detect=1;
        namedoc=[namedoc '.0'];
    else
        detect=0;
    end
end
saveas(gcbf,namefigfull);%save the interface with name namefigfull (A CHANGER EN FICHIER  .xml)

%------------------------------------------------------------------------
%OUTPUT:
% filecell: structure of input and output files
%         .ima1.civ1{i,j}, .ima1.civ2{i,j}; set of first image names for  correlations, for civ1 and civ2
%         .ima2.civ1{i,j}, .ima2.civ2{i,j} ; set of second image names for correlations
%         .imaA1.civ1{i,j}, .ima1.civ2{i,j}; set of first image names for correlations, for civ1 and civ2, with camA in stereo case (then .ima1 corresponds to camB)
%         .imaA2.civ1{i,j}, .ima2.civ2{i,j} ; set of second image names for  correlations, with camA in stereo case (then .ima1 corresponds to camB)
%         .nc.civ1{i,j}, .nc.civ2{i,j}; set of nc files for PIV results
%         .ncA.civ1{i,j}, .ncA.civ2{i,j}; set of nc files for PIV results with camA (then .nc corresponds to camB)
%         .st{i,j};   set of nc files for the combined stereo fields
% num1_civ1(i),num2_civ1(i): lists of first and last i indices for civ1
% num_a_civ1(j),num_b_civ1(j): lists of first and last j indices for civ1
% num1_civ2(i),num2_civ2(i): lists of first and last i indices for civ2
% num_a_civ2(j),num_b_civ2(j): lists of first and last j indices for civ2
% nom_type_nc: nomenclature type for velocity files 
% file_ref_fix1,file_ref_fix2: reference files possibly used by Fix1 and 2
function [filecell,num1_civ1,num2_civ1,num_a_civ1,num_b_civ1,num1_civ2,num2_civ2,num_a_civ2,num_b_civ2,nom_type_nc,file_ref_fix1,file_ref_fix2]=...
    set_civ_filenames(handles,compare,box_test)
%------------------------------------------------------------------------
%get the filename root, nomenclature and numbers
filebase=get(handles.displ_filebase,'String');
browse=get(handles.browse_root,'UserData');
compare_list=get(handles.compare,'String');
val=get(handles.compare,'Value');
compare=compare_list{val};
if strcmp(compare,'displacement')
    mode='displacement';
else
    mode_list=get(handles.mode,'String');
    mode_value=get(handles.mode,'Value');
    mode=mode_list{mode_value};
end
time=get(handles.displ_filebase,'UserData'); %get the set of times
ext_ima=get(handles.ext_ima,'String');
nom_type_nc=browse.nom_type_nc;
nom_type_ima2=browse.nom_type_ima;
if isequal(nom_type_ima2,[]),nom_type_ima2='ima_num';end; %default
if isequal(nom_type_nc,[]),nom_type_nc='_i1-i2';end; %default
[num1_civ1,num2_civ1,num_a_civ1,num_b_civ1,num1_civ2,num2_civ2,num_a_civ2,num_b_civ2]=...
    find_pair_indices(handles,mode);
%determine the new filebase for 'displacement' mode (comparison of two series)
filebase_B=filebase;% root name of the second field series for stereo
if strcmp(compare,'displacement') || strcmp(compare,'stereo PIV')
    test_disp=1;   
    nom_type_ima1=browse.nom_type_ima_1; %nomenclature type of the second file series
    [Path2,Name2]=fileparts(filebase_B);
    Path1=Path2;
    Name1=get(handles.displ_filebase2,'String');% root name of the first field series for stereo
    filebase_A=fullfile(Path1,Name1);
    if length(Name1)>6
        Name1=Name1(end-5:end);
    end
    if length(Name2)>6
        Name2=Name2(end-5:end);
    end
    filebase_AB=fullfile(Path2,[Name2 '-' Name1]);
else
    test_disp=0;
    filebase_A=filebase;
    nom_type_ima1=nom_type_ima2;
    filebase_AB=filebase;
end
if strcmp(compare,'displacement')
        filebase_ima1=filebase_A;
        filebase_ima2=filebase_B;
        filebase_nc=filebase_AB; %root name for the result of civ2  
else
        filebase_ima1=filebase_B;
        filebase_ima2=filebase_B;
        filebase_nc=filebase_B;
end    

%determine reference files for fix:
file_ref_fix1={};%default
file_ref_fix2={};
nbfield=length(num1_civ1);
nbslice=length(num_a_civ1);
if box_test(2)==1% fix1 performed
    ref=get(handles.ref_fix1,'UserData');%read data on the ref file stored by get_ref_fix1_Callback
    if ~isempty(ref)
        first_i=str2num(get(handles.first_i,'String'));
        last_i=str2num(get(handles.last_i,'String'));
        incr_i=str2num(get(handles.incr_i,'String'));
        first_j=str2num(get(handles.first_j,'String'));
        last_j=str2num(get(handles.last_j,'String'));
        incr_j=str2num(get(handles.incr_j,'String'));
        num_i_ref=[first_i:incr_i:last_i];
        num_j_ref=[first_j:incr_j:last_j];
        if isequal(mode,'displacement')
            num_i1=num_i_ref;
            num_i2=num_i_ref;
            num_j1=num_j_ref;
            num_j2=num_j_ref;
        elseif isequal(mode,'pair j1-j2')% isequal(mode,'st_pair j1-j2')
            num_i1=num_i_ref;
            num_i2=num_i1;
            num_j1=ref.num_a*ones(size(num_i_ref));
            num_j2=ref.num_b*ones(size(num_i_ref));
        elseif isequal(mode,'series(Di)') % isequal(mode,'st_series(Di)')
            delta1=floor((ref.num2-ref.num1)/2);
            delta2=ceil((ref.num2-ref.num1)/2);
            num_i1=num_i_ref-delta1*ones(size(num_i_ref));
            num_i2=num_i_ref+delta2*ones(size(num_i_ref));
            if isempty(ref.num_a)
                ref.num_a=1;
            end
            num_j1=ref.num_a*ones(size(num_i1));
            num_j2=num_j1;
        elseif isequal(mode,'series(Dj)')%| isequal(mode,'st_series(Dj)')
            delta1=floor((ref.num_b-ref.num_a)/2);
            delta2=ceil((ref.num_b-ref.num_a)/2);
            num_i1=ref.num1*ones(size(num_i_ref));
            num_i2=num_i1;
            num_j1=num_j_ref-delta1*ones(size(num_j_ref));
            num_j2=num_j_ref+delta2*ones(size(num_j_ref));
        end
        for ifile=1:nbfield
            for j=1:nbslice
                file_ref=name_generator(ref.filebase,num_i1(ifile),num_j1(j),'.nc',ref.nom_type,1,num_i2(ifile),num_j2(j),ref.subdir);%
                file_ref_fix1(ifile,j)={file_ref};
                if ~exist(file_ref,'file')
                    msgbox_uvmat('ERROR',['reference file ' file_ref ' not found for fix1'])
                    filecell=[];
                    return
                end
            end
        end
    end
end

%determine reference files for fix2:
if box_test(5)==1% fix2 performed
    ref=get(handles.ref_fix2,'UserData');
    if ~isempty(ref)
        first_i=str2num(get(handles.first_i,'String'));
        last_i=str2num(get(handles.last_i,'String'));
        incr_i=str2num(get(handles.incr_i,'String'));
        first_j=str2num(get(handles.first_j,'String'));
        last_j=str2num(get(handles.last_j,'String'));
        incr_j=str2num(get(handles.incr_j,'String'));
        num_i_ref=[first_i:incr_i:last_i];
        num_j_ref=[first_j:incr_j:last_j];
        if isequal(mode,'displacement')
            num_i1=num_i_ref;
            num_i2=num_i_ref;
            num_j1=num_j_ref;
            num_j2=num_j_ref;
        elseif isequal(mode,'pair j1-j2')
            num_i1=num_i_ref;
            num_i2=num_i1;
            num_j1=ref.num_a;
            num_j2=ref.num_b;
        elseif isequal(mode,'series(Di)')
            delta1=floor((ref.num2-ref.num1)/2);
            delta2=ceil((ref.num2-ref.num1)/2);
            num_i1=num_i_ref-delta1*ones(size(num_i_ref));
            num_i2=num_i_ref+delta2*ones(size(num_i_ref));
            num_j1=ref.num_a*ones(size(num_i1));
            num_j2=num_j1;
        elseif isequal(mode,'series(Dj)')
            delta1=floor((ref.num_b-ref.num_a)/2);
            delta2=ceil((ref.num_b-ref.num_a)/2);
            num_i1=ref.num1*ones(size(num_i_ref));
            num_i2=num_i1;
            num_j1=num_j_ref-delta1*ones(size(num_j_ref));
            num_j2=num_j_ref+delta2*ones(size(num_j_ref));
        end
        for ifile=1:nbfield
            for j=1:nbslice
                file_ref=name_generator(ref.filebase,num_i1(ifile),num_j1(j),'.nc',ref.nom_type,1,num_i2(ifile),num_j2(j),ref.subdir);%
                file_ref_fix2(ifile,j)={file_ref};
                if ~exist(file_ref,'file')
                    msgbox_uvmat('ERROR',['reference file ' file_ref ' not found for fix2'])
                    filecell=[];
                    return
                end
            end
        end
    end
end

%check dir
subdir_civ1=get(handles.subdir_civ1,'String');%subdirectory subdir_civ1 for the netcdf output data
subdir_civ2=get(handles.subdir_civ2,'String');
if isequal(subdir_civ1,''),subdir_civ1='A'; end% put default subdir
if isequal(subdir_civ2,''),subdir_civ2=subdir_civ1; end% put default subdir
currentdir=pwd;%store the current working directory
[Path_ima,Name]=fileparts(filebase);%Path of the image files (.civ)
if ~exist(Path_ima,'dir')
    msgbox_uvmat('ERROR',['path to images ' Path_ima ' not found'])
    filecell=[];
    return
end
cd(Path_ima);%move to the directory of the images: needed to create the result dir by 'mkdir'
dircur=pwd; %current working directory
m2='';
[erread,message]=fileattrib(Path_ima);
if ~isempty(message) & ~isequal(message.UserWrite,1)
      msgbox_uvmat('ERROR',['No writting access to ' Path_ima])
      filecell=[];
      cd(currentdir);
      return
end

%check the existence of the netcdf and image files involved
% %%%%%%%%%%%%  case CIV1 activated   %%%%%%%%%%%%%
if box_test(1)==1;
     detect=1;     
     while detect==1 %create a new subdir if the netcdf files already exist
          for ifile=1:nbfield;
              for j=1:nbslice
                  filename=name_generator(filebase_nc,num1_civ1(ifile),num_a_civ1(j),'.nc',nom_type_nc,1,num2_civ1(ifile),num_b_civ1(j),subdir_civ1);
                  detect=exist(filename,'file')==2;
                  if detect% if a netcdf file already exists
                     subdir_civ1=[subdir_civ1 '.0'];
                     subdir_civ2=subdir_civ1;
                     break
                  end
                  filecell.nc.civ1(ifile,j)={filename};
              end
              if detect% if a netcdf file already exists
                  break
              end
          end
           %create the new subdir_civ1 
          if ~exist(fullfile(Path_ima,subdir_civ1),'dir')
              [m1,m2,m3]=mkdir(subdir_civ1);
                if ~isequal(m2,'')
                   msgbox_uvmat('ERROR', m2)
                   %msgbox(m2);%error message for directory creation
              end
          end
          if strcmp(compare,'stereo PIV')&&(strcmp(mode,'pair j1-j2')||strcmp(mode,'series(Dj)')||strcmp(mode,'series(Di)'))%check second nc series
                for ifile=1:nbfield
                     for j=1:nbslice
                         filename=name_generator(filebase_A,num1_civ1(ifile),num_a_civ1(j),'.nc',nom_type_nc,1,num2_civ1(ifile),num_b_civ1(j),subdir_civ1);%
                          detect=exist(filename,'file')==2;
                          if detect% if a netcdf file already exists
                              subdir_civ1=[subdir_civ1 '.0'];
                              subdir_civ2=subdir_civ1;
                              break
                          end
                          filecell.ncA.civ1(ifile,j)={filename};
                     end
                    if detect% if a netcdf file already exists
                         break
                    end
              end
           %create the new subdir_civ1 
               if ~exist(fullfile(Path_ima,subdir_civ1),'dir')
                      [m1,m2,m3]=mkdir(subdir_civ1);
                       if ~isequal(m2,'')
                            msgbox_uvmat('ERROR', m2)
                      end
               end
          end
     end        
    % get image names
    for ifile=1:nbfield
         for j=1:nbslice
            filename=name_generator(filebase_ima1, num1_civ1(ifile),num_a_civ1(j),ext_ima,nom_type_ima1);
            idetect(j)=exist(filename,'file')==2;
            filecell.ima1.civ1(ifile,j)={filename}; %first image
            filename=name_generator(filebase_ima2, num2_civ1(ifile),num_b_civ1(j),ext_ima,nom_type_ima2);
            idetect_1(j)=exist(filename,'file')==2;
            filecell.ima2.civ1(ifile,j)={filename};%second image
         end
            [idetectmin,indexj]=min(idetect);
          if idetectmin==0,
                msgbox_uvmat('ERROR',[filecell.ima1.civ1{ifile,indexj} ' not found'])
                filecell=[];
                return
          end
            [idetectmin,indexj]=min(idetect_1);
          if idetectmin==0,
                msgbox_uvmat('ERROR',[filecell.ima2.civ1{ifile,indexj} ' not found'])
                filecell=[];
                cd(currentdir)
                return
          end
    end
    if strcmp(compare,'stereo PIV') && (strcmp(mode,'pair j1-j2') || strcmp(mode,'series(Dj)') || strcmp(mode,'series(Di)'))
         for ifile=1:nbfield
             for j=1:nbslice
                  filename=name_generator(filebase_A, num1_civ1(ifile),num_a_civ1(j),ext_ima,nom_type_ima1);
                  idetect(j)=exist(filename,'file')==2;
                  filecell.imaA1.civ1(ifile,j)={filename} ;%first image
                  filename=name_generator(filebase_A, num2_civ1(ifile),num_b_civ1(j),ext_ima,nom_type_ima2);
                  idetect_1(j)=exist(filename,'file')==2;
                  filecell.imaA2.civ1(ifile,j)={filename};%second image
             end
              [idetectmin,indexj]=min(idetect);
              if idetectmin==0,
                    msgbox_uvmat('ERROR',[filecell.imaA1.civ1{ifile,indexj} ' not found'])
                    filecell=[];
                    cd(currentdir)
                    return
              end
               [idetectmin,indexj]=min(idetect_1);
               if idetectmin==0,
                   msgbox_uvmat('ERROR',[filecell.imaA2.civ1{ifile,indexj} ' not found'])
                  filecell=[];
                  cd(currentdir)
                  return
               end
         end
    end
        
 %%%%%%%%%%%%%  fix1 or patch1 activated but no civ1   %%%%%%%%%%%%%
elseif (box_test(2)==1 || box_test(3)==1);  
    for ifile=1:nbfield
        for j=1:nbslice
            filename=name_generator(filebase_nc,num1_civ1(ifile),num_a_civ1(j),'.nc',...
                    nom_type_nc,1,num2_civ1(ifile),num_b_civ1(j),subdir_civ1);%
            detect=exist(filename,'file')==2;   
            filecell.nc.civ1(ifile,j)={filename};
        end
    end
    if strcmp(compare,'stereo PIV')
            for ifile=1:nbfield
                for j=1:nbslice
                    filename=name_generator(filebase_A,num1_civ1(ifile),num_a_civ1(j),'.nc',nom_type_nc,1,num2_civ1(ifile),num_b_civ1(j),subdir_civ1);%
                    filecell.ncA.civ1(ifile,j)={filename};
                    if ~exist(filename,'file')
                        msgbox_uvmat('ERROR',['input file ' filename ' not found'])
                        set(handles.RUN, 'Enable','On')
                        set(handles.RUN,'BackgroundColor',[1 0 0])
                        set(handles.BATCH, 'Enable','On')
                    set(handles.BATCH,'BackgroundColor',[1 0 0])
                    filecell=[];
                        cd(currentdir)
                        return
                    end
                end
            end
    end
end

%%%%%%%%%%%%%  if civ2 performed with pairs different than civ1  %%%%%%%%%%%%%
testdiff=0;
if (box_test(4)==1)&&...
        ((get(handles.list_pair_civ1,'Value')~=get(handles.list_pair_civ2,'Value'))||~isequal(subdir_civ2,subdir_civ1)) 
    testdiff=1;
    detect=1; 
    while detect==1 %create a new subdir if the netcdf files already exist
          for ifile=1:nbfield
              for j=1:nbslice
                  filename=name_generator(filebase_nc,num1_civ2(ifile),num_a_civ2(j),'.nc',nom_type_nc,1,num2_civ2(ifile),num_b_civ2(j),subdir_civ2);%
                  detect=exist(filename,'file')==2;
                  if detect% if a netcdf file already exists
                     subdir_civ2=[subdir_civ2 '.0'];
                     break
                  end
                  filecell.nc.civ2(ifile,j)={filename};
              end
              if detect% if a netcdf file already exists
                  break
              end
          end
           %create the new subdir_civ2 
          if ~exist(fullfile(Path_ima,subdir_civ2),'dir')
              [m1,m2,m3]=mkdir(subdir_civ2);
              if ~isequal(m2,'')
                   msgbox_uvmat('ERROR', m2)
              end
          end
           if strcmp(compare,'stereo PIV')%check second nc series
                for ifile=1:nbfield
                     for j=1:nbslice
                         filename=name_generator(filebase_A,num1_civ2(ifile),num_a_civ2(j),'.nc',...
                          nom_type_nc,1,num2_civ2(ifile),num_b_civ1(j),subdir_civ2);%
                          detect=exist(filename,'file')==2;
                          if detect% if a netcdf file already exists
                              subdir_civ2=[subdir_civ2 '.0'];
                              break
                          end
                          filecell.ncA.civ2(ifile,j)={filename};
                     end
                    if detect% if a netcdf file already exists
                         break
                    end
              end
           %create the new subdir_civ1 
               if ~exist(fullfile(Path_ima,subdir_civ2),'dir')
                      [m1,m2,m3]=mkdir(subdir_civ2);
                        if ~isequal(m2,'')
                            msgbox_uvmat('ERROR', m2)
                            %msgbox(m2);%error message for directory creation
                      end
               end
          end
    end  
end
cd(currentdir);%come back to the current working directory
    

%%%%%%%%%%%%%  if civ2 results are obtained or used  %%%%%%%%%%%%%
if box_test(4)==1 || box_test(5)==1 || box_test(6)==1 %civ2
    %check source netcdf file of civ1 estimates
    if box_test(1)==0; %no civ1 performed
        for ifile=1:nbfield
            for j=1:nbslice
                filename=name_generator(filebase_nc,num1_civ1(ifile),num_a_civ1(j),'.nc',...
                    nom_type_nc,1,num2_civ1(ifile),num_b_civ1(j),subdir_civ1);%
                filecell.nc.civ1(ifile,j)={filename};% name of the civ1 file
                if ~exist(filename,'file')
                    msgbox_uvmat('ERROR',['input file ' filename ' not found'])
                  filecell=[];
                    return
                end
                if ~testdiff % civ2 or patch2 are written in the same file as civ1
                    if box_test(4)==0 ; %check the existence of civ2 if it is not calculated
                        Data=nc2struct(filename,'ListGlobalAttribute','civ2');
                        if isempty(Data.civ2)||isequal(Data.civ2,0)
                            msgbox_uvmat('ERROR',['no civ2 data in ' filename])
                            filecell=[];
                            return
                        end  
                    elseif box_test(3)==0; %check the existence of patch if it is not calculated
                        Data=nc2struct(filename,'ListGlobalAttribute','patch');
                        if isempty(Data.patch)||isequal(Data.patch,0)
                            msgbox_uvmat('ERROR',['no patch data in ' filename])
                            filecell=[];
                            return
                        end
                    end 
                end
            end
        end
        if strcmp(compare,'stereo PIV')
            for ifile=1:nbfield
                for j=1:nbslice
                    filename=name_generator(filebase_A,num1_civ2(ifile),num_a_civ2(j),'.nc',...
                        nom_type_nc,1,num2_civ2(ifile),num_b_civ2(j),subdir_civ2);%
                    filecell.ncA.civ2(ifile,j)={filename};
                    if ~exist(filename,'file')
                        msgbox_uvmat('ERROR',['input file ' filename ' not found'])
                        set(handles.RUN, 'Enable','On')
                        set(handles.RUN,'BackgroundColor',[1 0 0])
                               set(handles.BATCH, 'Enable','On')
                    set(handles.BATCH,'BackgroundColor',[1 0 0])
                        cd(currentdir)
                        return
                    end
                end
            end
        end
    end

    detect=1; 
%     while detect==1%creates a new subdir if the netcdf files already contain civ2 data
        for ifile=1:nbfield
            for j=1:nbslice
                filename=name_generator(filebase_nc,num1_civ2(ifile),num_a_civ2(j),'.nc',...
                nom_type_nc,1,num2_civ2(ifile),num_b_civ2(j),subdir_civ2);
                detect=exist(filename,'file')==2;
                filecell.nc.civ2(ifile,j)={filename};
            end
        end
    %get first image names for civ2
    if box_test(1)==1 & isequal(num1_civ1,num1_civ2) & isequal(num_a_civ1,num_a_civ2)
        filecell.ima1.civ2=filecell.ima1.civ1;
    elseif box_test(4)==1
        for ifile=1:nbfield
            for j=1:nbslice
                filename=name_generator(filebase_ima1, num1_civ2(ifile),num_a_civ2(j),ext_ima,nom_type_ima1);
                idetect_2(j)=exist(filename,'file')==2;
                filecell.ima1.civ2(ifile,j)={filename};%first image
            end
                [idetectmin,indexj]=min(idetect_2);
            if idetectmin==0,
                    msgbox_uvmat('ERROR',['input image ' filecell.ima1.civ2{ifile,indexj} ' not found'])
                    filecell=[];
                    return
            end
        end
    end
    
    %get second image names for civ2
    if box_test(1)==1 & isequal(num2_civ1,num2_civ2) & isequal(num_b_civ1,num_b_civ2)
        filecell.ima2.civ2=filecell.ima2.civ1;
    elseif box_test(4)==1
        for ifile=1:nbfield
            for j=1:nbslice
                filename=name_generator(filebase_ima2, num2_civ2(ifile),num_b_civ2(j),ext_ima,nom_type_ima2);
                idetect_3(j)=exist(filename,'file')==2;
                filecell.ima2.civ2(ifile,j)={filename};%first image
            end
                [idetectmin,indexj]=min(idetect_3);
            if idetectmin==0,
                    msgbox_uvmat('ERROR',['input image ' filecell.ima2.civ2{ifile,indexj} ' not found'])
                    filecell=[];
                    return
            end
        end
    end
end
if (box_test(5)==1 || box_test(6)==1 ) && box_test(4)==0  % need to read an existing netcdf civ2 file
    if ~testdiff
        filecell.nc.civ2=filecell.nc.civ1;% file already checked
    else     % check the civ2 files 
        for ifile=1:nbfield
            for j=1:nbslice
                filename=name_generator(filebase_nc,num1_civ2(ifile),num_a_civ2(j),'.nc',...
                        nom_type_nc,1,num2_civ2(ifile),num_b_civ2(j),subdir_civ2);%
                filecell.nc.civ2(ifile,j)={filename};
                if ~exist(filename,'file')
                    msgbox_uvmat('ERROR',['input file ' filename ' not found'])
                    filecell=[];
                    return
                else
                    Data=nc2struct(filename,'ListGlobalAttribute','civ2');
                    if isempty(Data.civ2)||isequal(Data.civ2,0)         
                        msgbox_uvmat('ERROR',['no civ2 data in ' filename])
                        filecell=[];
                        return
                    end
                end
            end
        end
    end
end

%%%%%%%%%%%%%  if stereo fields are calculated by PATCH %%%%%%%%%%%%%
if strcmp(compare,'stereo PIV')
    if  box_test(3)==1 & isequal(get(handles.test_stereo1,'Value'),1) 
        for ifile=1:nbfield
            for j=1:nbslice
                filename=name_generator(filebase_AB,num1_civ1(ifile),num_a_civ1(j),'.nc',...
                    nom_type_nc,1,num2_civ1(ifile),num_b_civ1(j),subdir_civ1);%
                filecell.st(ifile,j)={filename};
            end
        end
    end
     if  box_test(6)==1 & isequal(get(handles.test_stereo2,'Value'),1) 
        for ifile=1:nbfield
            for j=1:nbslice
                filename=name_generator(filebase_AB,num1_civ2(ifile),num_a_civ2(j),'.nc',...
                    nom_type_nc,1,num2_civ2(ifile),num_b_civ2(j),subdir_civ2);%
                filecell.st(ifile,j)={filename};
            end
        end
     end
end
set(handles.subdir_civ1,'String',subdir_civ1);%update the edit box
set(handles.subdir_civ2,'String',subdir_civ2);%update the edit box
browse.nom_type_nc=nom_type_nc;
set(handles.browse_root,'UserData',browse); %update the nomenclature type for uvmat


%COPY IMAGES TO THE FORMAT .png IF NEEDED
if isequal(nom_type_ima1,'*')
    nom_type_imanew='_i';
else
    nom_type_imanew1=nom_type_ima1;
end
if isequal(nom_type_ima2,'*')
    nom_type_imanew='_i';
else
    nom_type_imanew2=nom_type_ima2;
end
if ~isequal(ext_ima,'.png')
    %npxy=get(handles.ext_ima,'UserData');
% %     if numel(npxy)<2
%     
%         filename=name_generator(filebase_ima1,num1_civ1(1),num_a_civ1(1),ext_ima,nom_type_ima1);
%         A=imread(filename);
%         npxy=size(A);
% %     end
%     npy=npxy(1);
%     npx=npxy(2);
    if box_test(1)==1 %if civ1 is performed
       h = waitbar(0,['copy images to the .png format for civ1']);% display a wait bar 
       for ifile=1:nbfield
            waitbar(ifile/nbfield);
            for j=1:nbslice
                    filename=name_generator(filebase_ima1,num1_civ1(ifile),num_a_civ1(j),'.png',nom_type_imanew1);
                    if ~exist(filename,'file')
                        A=read_image(filecell.ima1.civ1{ifile,j},nom_type_ima2,num1_civ1(ifile));
                        imwrite(A,filename,'BitDepth',16); 
                    end
                    filecell.ima1.civ1(ifile,j)={filename};
                    filename=name_generator(filebase_ima2, num2_civ1(ifile),num_b_civ1(j),'.png',nom_type_imanew2);
                    if ~exist(filename,'file')
                        A=read_image(filecell.ima2.civ1{ifile,j},nom_type_ima2,num2_civ1(ifile));
                        imwrite(A,filename,'BitDepth',16);
                    end
                    filecell.ima2.civ1(ifile,j)={filename};
            end
        end
        close(h)
    end
    if box_test(4)==1 %if civ2 is performed
        h = waitbar(0,['copy images to the .png format for civ2']);% display a wait bar 
        for ifile=1:nbfield
            waitbar(ifile/nbfield);
            for j=1:nbslice
                    filename=name_generator(filebase_ima1,num1_civ2(ifile),num_a_civ2(j),'.png',nom_type_imanew1);
                    if ~exist(filename,'file')
                        A=read_image(cell2mat(filecell.ima1.civ2(ifile,j)),nom_type_ima2,num1_civ2(ifile));
                        imwrite(A,filename,'BitDepth',16); 
                    end
                    filecell.ima1.civ2(ifile,j)={filename};
                    filename=name_generator(filebase_ima2, num2_civ2(ifile),num_b_civ2(j),'.png',nom_type_imanew2);
                    if ~exist(filename,'file')
                        A=read_image(cell2mat(filecell.ima2.civ2(ifile,j)),nom_type_ima2,num2.civ1(ifile));
                        imwrite(A,filename,'BitDepth',16);
                    end
                    filecell.ima2.civ2(ifile,j)={filename};
            end
        end
        close(h);
    end
end

%------------------------------------------------------------------------
%CIV1  CIV1  CIV1 CIV1
function RUN_CIV1(handles,filecell,filecell_1,filecell_nc1,num1,num2,num_a,num_b,nom_type_nc)
%------------------------------------------------------------------------
%pixels per cm and matrix of the image times, read from the .civ file by uvmat
global civ1_exe sge%name of the executable for civ1 calculation

%get civ parameters
ibx_val=str2num(get(handles.ibx,'String'));
if isempty(ibx_val)
    ibx='21'; set(handles.ibx,'String','21')
else 
    ibx=num2str(ibx_val);
end
iby_val=str2num(get(handles.iby,'String'));
if isempty(iby_val)
    iby='21'; set(handles.iby,'String','21')
else 
    iby=num2str(iby_val);
end
isx=get(handles.isx,'String');
if isempty(str2num(isx)), isx='41'; set(handles.isx,'String','41'), end; %default
if str2num(isx)<ibx_val+8,isx=num2str(ibx_val+8); set(handles.isx,'String',num2str(ibx_val+8)); end
isy=get(handles.isy,'String');
if isempty(str2num(isy)), isy='41'; set(handles.isy,'String','41'), end;%default
if str2num(isy)<iby_val+8,isy=num2str(iby_val+8); set(handles.isy,'String',num2str(iby_val+8)); end
shiftx=get(handles.shiftx,'String');
if isempty(str2num(shiftx)), shiftx='0'; set(handles.shiftx,'String','0'), end;%default
shifty=get(handles.shifty,'String');
if isempty(str2num(shifty)), shifty='0'; set(handles.shifty,'String','0'), end;%default
rho=get(handles.rho,'String');
dx=get(handles.dx_civ1,'String');
if isequal(str2num(dx),[]), dx='20'; set(handles.dx_civ1,'String','20'); end%default
dy=get(handles.dy_civ1,'String');
if isequal(str2num(dy),[]), dy='20'; set(handles.dy_civ1,'String','20');end %default
if isequal(str2num(dy),[]), dy='20'; end%default
pxcmx='1'; %velocity fields are expressed in pixel displacement
pxcmy='1';
image_first=cell2mat(filecell(1,1));
if ~exist(image_first,'file')
    msgbox_uvmat('ERROR',['image ' image_first 'not found'])
    set(handles.RUN, 'Enable','On')
    set(handles.RUN,'BackgroundColor',[1 0 0])
    return
end
A=imread(cell2mat(filecell(1,1)));%read the first image to get the size
sizim=size(A);
npx=num2str(sizim(2));
npy=num2str(sizim(1));
time=get(handles.displ_filebase,'UserData'); %get the set of times
gridname='';%default  ='noFile use default'
gridflag='n';%default
test_grid=get(handles.browse_gridciv1,'Value');
nbslice_grid=[];
if test_grid
    gridname=get(handles.grid_civ1,'String');
    if numel(gridname)>4 && isequal(gridname(end-3:end),'grid')
        nbslice_grid=str2num(gridname(1:end-4)); %
        if ~isempty(nbslice_grid) 
            gridflag='y'; 
        end
    elseif exist(gridname,'file')
        gridflag='y';
    else
        msgbox_uvmat('ERROR',['input grid file ' gridname ' not found'])
        return
    end
end
if isequal(get(handles.ImaThreshold,'Value'),1)
    threshflag='y';
    min_ima=get(handles.MinIma,'String');
    max_ima=get(handles.MaxIma,'String');
else
    threshflag='n';
    min_ima='0';
    max_ima='4096';
end 
 %main loop
filebase=get(handles.displ_filebase,'String');
sizcell=size(filecell);
nbfield=sizcell(1);
nbslice=sizcell(2);
icount=0;
for ifile=1:nbfield
    for j=1:nbslice
        icount=icount+1;
        barlength=0.188*icount/(nbfield*nbslice);
        set(handles.waitbar_1,'Position',[0.946 0.877-barlength 0.03 barlength])
        drawnow
        filename_ima=cell2mat(filecell(ifile,j));
        filename_ima([end-3:end])=[];%remove .png extension
        filename_ima_1=cell2mat(filecell_1(ifile,j));
        filename_ima_1([end-3:end])=[];%remove .png extension
        filename_cmx=cell2mat(filecell_nc1(ifile,j));%output netcdf file
        filename_cmx([end-1:end])=[ 'cm'];%name of cmx file
        filename_cmx=[filename_cmx 'x'];
        namelog=[filename_cmx([1:end-3]) 'log'];       
        if size(time,1)>=num2(ifile) &  size(time,2)>=num_b(j)
            Dt=num2str(time(num2(ifile),num_b(j))-time(num1(ifile),num_a(j)));
            if isequal(Dt,'0')
                Dt='1' ;%case of 'displacement' mode
            end
            T0=num2str((time(num2(ifile),num_b(j))+time(num1(ifile),num_a(j)))/2);
        else
            Dt='1';
            T0='0';
        end 
        term_a=num2stra(num_a(j),nom_type_nc);%UTILITE?
        term_b=num2stra(num_b(j),nom_type_nc);%
        if test_grid && ~isempty(nbslice_grid)        
             num1_grid=mod(num1(ifile)-1,nbslice_grid)+1;
            gridname=[filebase '_' name_generator(gridname,num1_grid,1,'.grid','_i')];
            if ~exist(gridname,'file')
                msgbox_uvmat('ERROR',['missing grid file ' gridname])
                return
            end
        end
        test_mask=get(handles.get_mask_civ1,'Value');
        if test_mask==0
            maskname='noFile use default';
            maskflag='n';
        else
            maskdispl=get(handles.mask_civ1,'String');%look for mask name in edit box
            maskbase=[filebase '_' maskdispl];% 
            nbslice=str2num(maskdispl(1:end-4)); % 
            num1_mask=mod(num1(ifile)-1,nbslice)+1;
            maskname=name_generator(maskbase,num1_mask,1,'.png','_i');
            if exist(maskname,'file')
                maskflag='y'; 
            else
                maskname='noFile use default';
                maskflag='n'; 
            end
        end
		textcmx={'##############   CMX file';...
		['FirstImage ' filename_ima];...
		['LastImage  ' filename_ima_1];...
		'XX' ;...
		['Mask ' maskflag] ;...
		['MaskName ' maskname];...
		['ImageSize ' npx ' ' npy];...   %VERIFIER CAS GENERAL ?
		['CorrelationBoxesSize ' ibx ' ' iby];...
		['SearchBoxeSize ' isx ' ' isy];...
		['RO ' rho];...
		['GridSpacing ' dx ' ' dy];...
		'XX 1.0';...
		['Dt_TO ' Dt ' ' T0];...
		['PixCmXY ' pxcmx ' ' pxcmy];...
		'XX 1';...
		['ShiftXY ' shiftx ' ' shifty];...
		['Grid ' gridflag];...
		['GridName ' gridname] ;...
		'XX 85';...
		'XX 1.0';...
		'XX 1.0';...
		'Hart 1';...
		'DecimalShift 0';...
		'Deformation 0';...
		'CorrelationMin 0';...
		'IntensityMin 0';...
		['SeuilImage ' threshflag];...
		['SeuilImageValues ' min_ima ' ' max_ima];...
		['ImageToUse ' term_a ' ' term_b];... % VERIFIER ?
		'ImageUsedBefore null null'};
		textout=char(textcmx);
% 		dlmwrite(filename_cmx,textout,'');
     fid=fopen([filename_cmx],'w');
fprintf(fid, ['##############   CMX file' '\n']);
 fprintf(fid,   ['FirstImage ' regexprep(filename_ima,'\\','\\\\') '\n' ]);
 fprintf(fid,   ['LastImage  ' regexprep(filename_ima_1,'\\','\\\\') '\n' ]);
  fprintf(fid,  ['XX' '\n' ]);
  fprintf(fid,  ['Mask '  maskflag '\n' ]);
  fprintf(fid,  ['MaskName '  maskname '\n' ]);
 fprintf(fid,   ['ImageSize '  npx ' '  npy '\n' ]);   %VERIFIER CAS GENERAL ?
 fprintf(fid,   ['CorrelationBoxesSize '  ibx ' '  iby '\n' ]);
 fprintf(fid,   ['SearchBoxeSize '  isx ' '  isy '\n' ]);
 fprintf(fid,   ['RO '  rho '\n' ]);
 fprintf(fid,   ['GridSpacing '  dx ' '  dy '\n' ]);
 fprintf(fid,   ['XX 1.0' '\n' ]);
 fprintf(fid,   ['Dt_TO '  Dt ' '  T0 '\n' ]);
  fprintf(fid,  ['PixCmXY '  pxcmx ' '  pxcmy '\n' ]);
  fprintf(fid,  ['XX 1' '\n' ]);
 fprintf(fid,   ['ShiftXY '  shiftx ' '   shifty '\n' ]);
  fprintf(fid,  ['Grid '  gridflag '\n' ]);
 fprintf(fid,   ['GridName '  gridname '\n' ]);
 fprintf(fid,   ['XX 85' '\n' ]);
 fprintf(fid,   ['XX 1.0' '\n' ]);
 fprintf(fid,   ['XX 1.0' '\n' ]);
 fprintf(fid,   ['Hart 1' '\n' ]);
 fprintf(fid,  [ 'DecimalShift 0' '\n' ]);
 fprintf(fid,   ['Deformation 0' '\n' ]);
  fprintf(fid,  ['CorrelationMin 0' '\n' ]);
 fprintf(fid,   ['IntensityMin 0' '\n' ]);
  fprintf(fid,  ['SeuilImage n' '\n' ]);
 fprintf(fid,   ['SeuilImageValues 0 4096' '\n' ]);
 fprintf(fid,   ['ImageToUse '  term_a ' '  term_b '\n' ]); % VERIFIER ?
 fprintf(fid,   ['ImageUsedBefore null null' '\n' ]);
fclose(fid);
       
		s=-1; 
        display(['!' civ1_exe ' -f ' filename_cmx ' > ' namelog])
        eval(['!' civ1_exe ' -f ' filename_cmx ' > ' namelog]);
% 		if sge%dispatch computation on the cluster using interactive queue
%           %  [s,w] = unix(['qrsh -q fast.q ' civ1_exe ' -f ' filename_cmx ' > ' namelog ' 2>&1' ]);
%        end     
%         if s~=0
%            %  ['!' civ1_exe ' -f ' filename_cmx ' > ' namelog]
%            % eval(['!' civ1_exe ' -f ' filename_cmx ' > ' namelog]);       
%         end
    end
end

%------------------------------------------------------------------------
% RUN CIV2   CIV2    CIV2   CIV2
function RUN_CIV2(handles,filecell_2,filecell_3,filecell_nc1,filecell_nc2,num1,num2,num_a,num_b,nom_type_nc)
%------------------------------------------------------------------------
%filecell_2: names of first image
%filecell_3: names of second images
global civ2_exe sge

%names of the civ2 fields
field.vel_type='civ2';
field.nb='nb_vectors2';
field.X='vec2_X';
field.Y='vec2_Y';
field.U='vec2_U';
field.V='vec2_V';
 
%get civ parameters
ibx=get(handles.ibx_civ2,'String');
iby=get(handles.iby_civ2,'String');
rho=get(handles.rho_civ2,'String');
decimal=int2str(get(handles.decimal,'Value'));
deformation=int2str(get(handles.deformation,'Value'));
dx=get(handles.dx_civ2,'String');
dy=get(handles.dy_civ2,'String');
if isequal(str2num(dx),[])
    dx='20';%default
end
if isequal(str2num(dy),[])
    dy='20';%default
end
    pxcmx='1';%velocity fields are expressed in pixel displacement
    pxcmy='1';
A=imread(cell2mat(filecell_2(1,1)));%read the first image to get the size
sizim=size(A);
npx=num2str(sizim(2));
npy=num2str(sizim(1));
time=get(handles.displ_filebase,'UserData'); %get the set of times
filebase=get(handles.displ_filebase,'String');
%grid
gridname='';%default  ='noFile use default'
gridflag='n';%default
test_grid=get(handles.browse_gridciv2,'Value');
nbslice_grid=[];
if test_grid
    gridname=get(handles.grid_civ2,'String');
    if numel(gridname)>4 && isequal(gridname(end-3:end),'grid')
        nbslice_grid=str2num(gridname(1:end-4)); %
        if ~isempty(nbslice_grid) 
            gridflag='y'; 
        end
    elseif exist(gridname,'file')
        gridflag='y';
    else
        msgbox_uvmat('ERROR',['input grid file ' gridname ' not found'])
        return
    end
end
sizcell=size(filecell_2);
nbfield=sizcell(1);
nbslice=sizcell(2);
  
%main loop
icount=0;
for ifile=1:nbfield
    for j=1:nbslice
        icount=icount+1;
        barlength=0.188*icount/(nbfield*nbslice);
        set(handles.waitbar_civ2,'Position',[0.946 0.407-barlength 0.03 barlength])
        drawnow
        filename_ima_2=cell2mat(filecell_2(ifile,j));
        filename_ima_2([end-3:end])=[];%remove .png extension
        filename_ima_3=cell2mat(filecell_3(ifile,j));
        filename_ima_3([end-3:end])=[];%remove .png extension
        filename_cmx=cell2mat(filecell_nc2(ifile,j));%output netcdf file
        filename_cmx([end-1:end])=[ 'cm'];%name of cmx file
        filename_cmx=[filename_cmx 'x'];
        namelog=[filename_cmx([1:end-3]) 'log']; 
        if size(time,1)>=num2(ifile) &  size(time,2)>=num_b(j)
            Dt=num2str(time(num2(ifile),num_b(j))-time(num1(ifile),num_a(j)));
            if isequal(Dt,'0')
                Dt='1' ;%case of 'displacement' mode
            end
            T0=num2str((time(num2(ifile),num_b(j))+time(num1(ifile),num_a(j)))/2);
        else
            Dt='1';
            T0='0';
        end 
        term_a=num2stra(num_a(j),nom_type_nc);
        term_b=num2stra(num_b(j),nom_type_nc);
        filename_nc1=cell2mat(filecell_nc1(ifile,j));
        filename_nc1([end-2:end])=[]; % remove '.nc'     
        if test_grid && ~isempty(nbslice_grid)        
            num1_grid=mod(num1(ifile)-1,nbslice_grid)+1;
            gridname=[filebase '_' name_generator(gridname,num1_grid,1,'.grid','_i')];
            if ~exist(gridname,'file')
                msgbox_uvmat('ERROR',['missing grid file ' gridname])
                return
            end
        end      
        test_mask=get(handles.get_mask_civ2,'Value');
        if test_mask==0  
            maskname='noFile use default';
            maskflag='n';
        else
            maskdispl=get(handles.mask_civ2,'String');
            maskbase=[filebase '_' maskdispl]; % 
            nbslice_mask=str2num(maskdispl(1:end-4)); % 
            num1_mask=mod(num1(ifile)-1,nbslice_mask)+1;
            maskname =name_generator(maskbase,num1_mask,1,'.png','_i');
            if ~exist(maskname,'file')
                maskflag='y'; 
            else
                maskname='noFile use default';
                maskflag='n'; 
            end
        end
    
		textcmx={'##############   CMX file';...
		['FirstImage ' filename_ima_2];...
		['LastImage  ' filename_ima_3];...
		'XX' ;...
		['Mask ' maskflag];...
		['MaskName ' maskname];...
		['ImageSize ' npx ' ' npy];...   
		['CorrelationBoxesSize ' ibx ' ' iby];...
		['SearchBoxeSize ' ibx ' ' iby];...
		['RO ' rho];...
		['GridSpacing ' dx ' ' dy];...
		'XX 1.0';...
		['Dt_TO ' Dt ' ' T0];...
		['PixCmXY ' pxcmx ' ' pxcmy];...
		'XX 1';...
		['ShiftXY 0 0'];...
		['Grid ' gridflag];...
		['GridName ' gridname];...
		'XX 85';...
		'XX 1.0';...
		'XX 1.0';...
		'Hart 1';...
		['DecimalShift ' decimal];...
		['Deformation ' deformation];...
		'CorrelationMin 0';...
		'IntensityMin 0';...
		'SeuilImage n';...
		'SeuilImageValues 0 4096';...
		['ImageToUse ' term_a ' ' term_b];... % VERIFIER ?
		['ImageUsedBefore ' filename_nc1]};
        textout=char(textcmx);
        dlmwrite(filename_cmx,textout,''); 
        s=-1;  
        display(['!' civ2_exe ' -f ' filename_cmx ' > ' namelog])
        eval(['!' civ2_exe ' -f ' filename_cmx ' > ' namelog]);    
     
% 		if sge%dispatch computation on the cluster using interactive queue
%             [s,w] = unix(['qrsh -q fast.q ' civ2_exe ' -f ' filename_cmx ' > ' namelog ' 2>&1']);
%         end     
%         if s~=0
%             eval(['!' civ2_exe ' -f ' filename_cmx ' > ' namelog]);
%             ['!' civ2_exe ' -f ' filename_cmx ' > ' namelog]
%         end                      
    end
end
% close(h) 

%------------------------------------------------------------------------
% --- PATCH
function cmd_PATCH=RUN_PATCH(filename_nc,nx_patch,ny_patch,rho_patch,subdomain_patch,thresh_value,test_interp)
%------------------------------------------------------------------------
global patch_exe patch_new_exe
        namelog=[filename_nc([1:end-3]) '_patch.log'];
        if test_interp==0
            cmd_PATCH=[patch_exe ' -f ' filename_nc ' -m ' nx_patch  ' -n ' ny_patch ' -ro ' rho_patch ' -nopt ' subdomain_patch ...
            '  > ' namelog ' 2>&1']; % redirect standard output to the log file
         else %nouveau programme patch
             cmd_PATCH=[patch_new_exe ' -f ' filename_nc ' -m ' nx_patch  ' -n ' ny_patch ' -ro ' rho_patch ...
                ' -max ' thresh_value ' -nopt ' subdomain_patch  '  > ' namelog ' 2>&1']; % redirect standard output to the log file
        end

%------------------------------------------------------------------------
% --- STEREO Interp
function cmd=RUN_STINTERP(stinterp_exe,filename_A_nc,filename_B_nc,filename_nc,nx_patch,ny_patch,rho_patch,subdomain_patch,thresh_value,xmlA,xmlB)
%------------------------------------------------------------------------
namelog=[filename_nc([1:end-3]) '_stinterp.log'];
cmd=[stinterp_exe ' -f1 ' filename_A_nc  ' -f2 ' filename_B_nc ' -f  ' filename_nc ...
    ' -m ' nx_patch  ' -n ' ny_patch ' -ro ' rho_patch ' -nopt ' subdomain_patch ' -c1 ' xmlA ' -c2 ' xmlB '  -xy  x -Nfy 1024 > ' namelog ' 2>&1']; % redirect standard output to the log file

%------------------------------------------------------------------------
% --- Executes on button press in CIV1.
function CIV1_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
val=get(handles.CIV1,'Value');
if isequal(val,1)
    enable_civ1(handles,'on')
    enable_pair1(handles,'on')
else
    enable_civ1(handles,'off')
end
find_netcpair_civ1(hObject, eventdata, handles);

%------------------------------------------------------------------------
% --- Executes on button press in FIX1.
function FIX1_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
enable_fix1(handles,get(handles.FIX1,'Value'))

%------------------------------------------------------------------------
% --- Executes on button press in PATCH1.
function PATCH1_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
if get(handles.PATCH1,'Value')==1
    enable_patch1(handles)
else
    desable_patch1(handles)
end

%------------------------------------------------------------------------
% --- Executes on button press in CIV2.
function CIV2_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
state=get(handles.CIV2,'Value');
enable_civ2(handles,state)
if state
    find_netcpair_civ2(hObject, eventdata, handles)
    enable_pair1(handles,'on')
end

%------------------------------------------------------------------------
% --- Executes on button press in FIX2.
function FIX2_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
if get(handles.FIX2,'Value')==1
    enable_fix2(handles)
    if get(handles.CIV2,'Value')==0
        find_netcpair_civ2(hObject, eventdata, handles) % select the available netcdf files
    end
else
    desable_fix2(handles)
end

%------------------------------------------------------------------------
% --- Executes on button press in PATCH2.
function PATCH2_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
if get(handles.PATCH2,'Value')==1
    enable_patch2(handles)
    if get(handles.CIV2,'Value')==0
        find_netcpair_civ2(hObject, eventdata, handles) % select the available netcdf files
    end
else
    desable_patch2(handles)
end

%------------------------------------------------------------------------
function first_i_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
% last_i_Callback(hObject, eventdata, handles)
first_i=str2num(get(handles.first_i,'String'));
% last_i=str2num(get(handles.last_i,'String'));
% ref_i=ceil((first_i+last_i)/2);
set(handles.ref_i,'String', num2str(first_i))% reference index for pair dt = first index
ref_i_Callback(hObject, eventdata, handles)%refresh dispaly of dt for pairs (in case of non constant dt)

%------------------------------------------------------------------------
function first_j_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
first_j=str2num(get(handles.first_j,'String'));
set(handles.ref_j,'String', num2str(first_j))% reference index for pair dt = first index
ref_j_Callback(hObject, eventdata, handles)%refresh dispaly of dt for pairs (in case of non constant dt)

%------------------------------------------------------------------------
% --- Executes on button press in calcul_search: determine the search range isx,isy
function calcul_search_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
%determine pair numbers
list_pair=get(handles.list_pair_civ1,'String');%get the menu of image pairs
index=get(handles.list_pair_civ1,'Value');
displ_num=get(handles.list_pair_civ1,'UserData');
time=get(handles.displ_filebase,'UserData'); %get the set of times
pxcm_xy=get(handles.calcul_search,'UserData');
pxcmx=pxcm_xy(1);
pxcmy=pxcm_xy(2);
mode_list=get(handles.mode,'String');
mode_value=get(handles.mode,'Value');
mode=mode_list{mode_value};
if isequal (mode, 'series(Di)' )
    ref_i=str2num(get(handles.ref_i,'String'));
    num1=ref_i-floor(index/2);%  first image numbers
    num2=ref_i+ceil(index/2);
    num_a=1;
    num_b=1;
elseif isequal (mode, 'series(Dj)') 
    num1=1;
    num2=1;
    ref_j=str2num(get(handles.ref_j,'String'));
    num_a=ref_j-floor(index/2);%  first image numbers
    num_b=ref_j+ceil(index/2);
elseif isequal(mode,'pair j1-j2') %case of bursts (png_old or png_2D)
    ref_i=str2num(get(handles.ref_i,'String'));
    num1=ref_i;
    num2=ref_i;
    num_a=displ_num(1,index);
    num_b=displ_num(2,index);
end
dt=time(num2,num_b)-time(num1,num_a);
ibx=str2num(get(handles.ibx,'String'));
iby=str2num(get(handles.iby,'String'));
umin=dt*pxcmx*str2num(get(handles.umin,'String'));
umax=dt*pxcmx*str2num(get(handles.umax,'String'));
vmin=dt*pxcmy*str2num(get(handles.vmin,'String'));
vmax=dt*pxcmy*str2num(get(handles.vmax,'String'));
shiftx=round((umin+umax)/2);
shifty=round((vmin+vmax)/2);
isx=(umax+2-shiftx)*2+ibx;
isx=2*ceil(isx/2)+1;
isy=(vmax+2-shifty)*2+iby;
isy=2*ceil(isy/2)+1;
set(handles.shiftx,'String',num2str(shiftx));
set(handles.shifty,'String',num2str(shifty));
set(handles.isx,'String',num2str(isx));
set(handles.isy,'String',num2str(isy));

%------------------------------------------------------------------------
% --- Executes on carriage return on the subdir civ1 edit window
function subdir_civ1_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
subdir=get(handles.subdir_civ1,'String');
set(handles.subdir_civ2,'String',subdir);
if get(handles.CIV1,'Value')==0 
    find_netcpair_civ1(hObject, eventdata, handles); %update the list of available pairs from netcdf files in the new directory
end

%------------------------------------------------------------------------
% --- Executes on carriage return on the subdir civ1 edit window
function subdir_civ2_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
%update the list of available pairs from netcdf files in the new directory
if get(handles.CIV2,'Value')==0 & get(handles.CIV1,'Value')==0 & get(handles.FIX1,'Value')==0 & get(handles.PATCH1,'Value')==0
    find_netcpair_civ2(hObject, eventdata, handles);
end

%------------------------------------------------------------------------
% --- Executes on button press in get_mask_civ1.
function get_mask_civ1_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
maskval=get(handles.get_mask_civ1,'Value');
if isequal(maskval,0)
    set(handles.mask_civ1,'String','')
else
    mask_displ='no mask'; %default
    filebase=get(handles.displ_filebase,'String');
    [ nbslice_mask, flag_mask]=get_mask(filebase,handles);
    if isequal(flag_mask,1)
          mask_displ=[num2str(nbslice_mask) 'mask'];
    elseif get(handles.compare,'Value')>1 & ~isequal(mask_displ,'no mask')% look for the second mask series
            common_path=fileparts(filebase);
            filebase_a=fullfile(common_path,get(handles.displ_filebase2,'String'));
            [nbslice_a, flag_mask_a]=get_mask(filebase_a,handles);
            if isequal(flag_mask_a,0) || ~isequal(nbslice_a,nbslice_mask)
                mask_displ='no mask';
            end
    end
    if isequal(mask_displ,'no mask')
        [FileName, PathName, filterindex] = uigetfile( ...
               {'*.png', ' (*.png)';
                '*.png',  '.png files '; ...
                '*.*', 'All Files (*.*)'}, ...
                'Pick a mask file *.png',filebase);
        mask_displ=fullfile(PathName,FileName);  
        if ~exist(mask_displ,'file')
            mask_displ='no mask';
        end
    end
    if isequal(mask_displ,'no mask')
        set(handles.get_mask_civ1,'Value',0)
        set(handles.get_mask_fix1,'Value',0)
        set(handles.get_mask_civ2,'Value',0)
        set(handles.get_mask_fix2,'Value',0)
    else
        set(handles.get_mask_fix1,'Value',1)
        set(handles.get_mask_fix2,'Value',1)
    end
    set(handles.mask_civ1,'String',mask_displ)
    set(handles.mask_fix1,'String',mask_displ)
    set(handles.mask_civ2,'String',mask_displ)
    set(handles.mask_fix2,'String',mask_displ)
end

%------------------------------------------------------------------------
% --- Executes on button press in get_mask_fix1.
function get_mask_fix1_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
maskval=get(handles.get_mask_fix1,'Value');
if isequal(maskval,0)
    set(handles.mask_fix1,'String','')
else
mask_displ='no mask'; %default
filebase=get(handles.displ_filebase,'String');
[nbslice, flag_mask]=get_mask(filebase,handles);
if isequal(flag_mask,1)
      mask_displ=[num2str(nbslice) 'mask'];
elseif get(handles.compare,'Value')>1 & ~isequal(mask_displ,'no mask')% look for the second mask series
        filebase_a=get(handles.displ_filebase2,'String');
        [nbslice_a, flag_mask_a]=get_mask(filebase_a,handles);
        if isequal(flag_mask_a,0) | ~isequal(nbslice_a,nbslice)
            mask_displ='no mask';
        end
end
if isequal(mask_displ,'no mask')
    [FileName, PathName, filterindex] = uigetfile( ...
           {'*.png', ' (*.png)';
            '*.png',  '.png files '; ...
            '*.*', 'All Files (*.*)'}, ...
            'Pick a mask file *.png',filebase);
    mask_displ=fullfile(PathName,FileName);  
    if ~exist(mask_displ,'file')
        mask_displ='no mask';
    end
end
if isequal(mask_displ,'no mask')
    set(handles.get_mask_fix1,'Value',0)
    set(handles.get_mask_civ2,'Value',0)
    set(handles.get_mask_fix2,'Value',0)
else
    %set(handles.get_mask_civ2,'Value',1)
    set(handles.get_mask_fix2,'Value',1)
end 
set(handles.mask_fix1,'String',mask_displ)
set(handles.mask_civ2,'String',mask_displ)
set(handles.mask_fix2,'String',mask_displ)
end

%------------------------------------------------------------------------
% --- Executes on button press in get_mask_civ2.
function get_mask_civ2_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
maskval=get(handles.get_mask_civ2,'Value');
if isequal(maskval,0)
    set(handles.mask_civ2,'String','')
else
mask_displ='no mask'; %default
filebase=get(handles.displ_filebase,'String');
[nbslice, flag_mask]=get_mask(filebase,handles);
if isequal(flag_mask,1)
      mask_displ=[num2str(nbslice) 'mask'];
elseif get(handles.compare,'Value')>1 & ~isequal(mask_displ,'no mask')% look for the second mask series
        filebase_a=get(handles.displ_filebase2,'String');
        [nbslice_a, flag_mask_a]=get_mask(filebase_a,handles);
        if isequal(flag_mask_a,0) | ~isequal(nbslice_a,nbslice)
            mask_displ='no mask';
        end
end
if isequal(mask_displ,'no mask')
    [FileName, PathName, filterindex] = uigetfile( ...
           {'*.png', ' (*.png)';
            '*.png',  '.png files '; ...
            '*.*', 'All Files (*.*)'}, ...
            'Pick a mask file *.png',filebase);
    mask_displ=fullfile(PathName,FileName);
    if ~exist(mask_displ,'file')
        mask_displ='no mask';
    end
end
if isequal(mask_displ,'no mask')
    set(handles.get_mask_civ2,'Value',0)
    set(handles.get_mask_fix2,'Value',0)
else
    set(handles.get_mask_fix2,'Value',1)
end 
set(handles.mask_civ2,'String',mask_displ)
set(handles.mask_fix2,'String',mask_displ)
end

%------------------------------------------------------------------------
% --- Executes on button press in get_mask_fix2.
function get_mask_fix2_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
maskval=get(handles.get_mask_fix2,'Value');
if isequal(maskval,0)
    set(handles.mask_fix2,'String','')
else
    mask_displ='no mask'; %default
    filebase=get(handles.displ_filebase,'String');
    [nbslice, flag_mask]=get_mask(filebase,handles);
    if isequal(flag_mask,1)
          mask_displ=[num2str(nbslice) 'mask'];
    elseif get(handles.compare,'Value')>1 & ~isequal(mask_displ,'no mask')% look for the second mask series
            filebase_a=get(handles.displ_filebase2,'String');
            [nbslice_a, flag_mask_a]=get_mask(filebase_a,handles);
            if isequal(flag_mask_a,0) | ~isequal(nbslice_a,nbslice)
                mask_displ='no mask';
            end
    end
    if isequal(mask_displ,'no mask')
        [FileName, PathName, filterindex] = uigetfile( ...
               {'*.png', ' (*.png)';
                '*.png',  '.png files '; ...
                '*.*', 'All Files (*.*)'}, ...
                'Pick a mask file *.png',filebase);
        mask_displ=fullfile(PathName,FileName);  
        if ~exist(mask_displ,'file')
            mask_displ='no mask';
        end
    end
    if isequal(mask_displ,'no mask')
        set(handles.get_mask_fix2,'Value',0)
    end 
    set(handles.mask_fix2,'String',mask_displ)
end

%------------------------------------------------------------------------
% --- function called to look for mask files
function [nbslice, flag_mask]=get_mask(filebase,handles)
%------------------------------------------------------------------------
%detect mask files, images with appropriate file base 
%[filebase '_' xx 'mask'], xx=nbslice
%flag_mask=1 indicates detection

flag_mask=0;%default
nbslice=1;

% subdir=get(handles.subdir_civ1,'String');
[Path,Name]=fileparts(filebase);
if ~isdir(Path)
    msgbox_uvmat('ERROR','no path for input files')
    return
end
currentdir=pwd;
cd(Path);%move in the dir of the root name filebase
maskfiles=dir([Name '_*mask_*.png']);%look for mask files
cd(currentdir);%come back to the current working directory
if ~isempty(maskfiles)
%     msgbox_uvmat('ERROR','no mask available, to create it use Tools/Make mask in the upper menu bar of uvmat')
% else
    flag_mask=1;
    maskname=maskfiles(1).name;% take the first mask file in the list
    [Path2,Name,ext]=fileparts(maskname);
    Namedouble=double(Name);
    val=(48>Namedouble)|(Namedouble>57);% select the non-numerical characters
    ind_mask=findstr('mask',Name);
    i=ind_mask-1;
    while val(i)==0 & i>0
       i=i-1;
    end
    nbslice=str2num(Name(i+1:ind_mask-1));
    if ~isequal(nbslice,[]) & Name(i)=='_'
          flag_mask=1;
    else
          msgbox_uvmat('ERROR',['bad mask file ' Name ext ' found in ' Path2])
          return
          nbslice=1;
    end
end    

%------------------------------------------------------------------------
% --- function called to look for grid files
function [nbslice, flag_mask]=get_grid(filebase,handles)
%------------------------------------------------------------------------
flag_mask=0;%default
nbslice=1;
[Path,Name]=fileparts(filebase);
currentdir=pwd;
cd(Path);%move in the dir of the root name filebase
maskfiles=dir([Name '_*grid_*.grid']);%look for mask files
cd(currentdir);%come back to the current working directory
if ~isempty(maskfiles)
    flag_mask=1;
    maskname=maskfiles(1).name;% take the first mask file in the list
    [Path2,Name,ext]=fileparts(maskname);
    Namedouble=double(Name);
    val=(48>Namedouble)|(Namedouble>57);% select the non-numerical characters
    ind_mask=findstr('grid',Name);
    i=ind_mask-1;
    while val(i)==0 & i>0
       i=i-1;
    end
    nbslice=str2num(Name(i+1:ind_mask-1));
    if ~isequal(nbslice,[]) & Name(i)=='_'
          flag_mask=1;
    else
          msgbox_uvmat('ERROR',['bad grid file ' Name ext ' found in ' Path2])
          return
          nbslice=1;
    end
end

%------------------------------------------------------------------------
% --- transform numbers to letters
function str=num2stra(num,nom_type);
%------------------------------------------------------------------------
if isequal(nom_type,'png_old') | isequal(nom_type,'netc_old') |isequal(nom_type,'raw_SMD')
    str=char(96+num);
elseif isequal(nom_type,'_i')|isequal(nom_type,'_i1-i2')...
        |isequal(nom_type,'ima_num')| isequal(nom_type,'avi')| isequal(nom_type,'none')
    str='';
else
    str=num2str(num);
end

%------------------------------------------------------------------------
function mask_civ1_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
set(handles.mask_civ1,'UserData',[])
set(handles.mask_civ1,'String','')

%------------------------------------------------------------------------
function mask_civ2_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
set(handles.mask_civ2,'UserData',[])
set(handles.mask_civ2,'String','')

%------------------------------------------------------------------------
function mask_fix1_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
set(handles.mask_fix1,'UserData',[])
set(handles.mask_fix1,'String','')

%------------------------------------------------------------------------
function mask_fix2_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
set(handles.mask_fix2,'UserData',[])
set(handles.mask_fix2,'String','')

%------------------------------------------------------------------------
% --- Executes on button press in list_subdir_civ1.
function list_subdir_civ1_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
list_subdir_civ1=get(handles.list_subdir_civ1,'String');
val=get(handles.list_subdir_civ1,'Value');
if val>1
    subdir=list_subdir_civ1{val};
    set(handles.subdir_civ1,'String',subdir);
    set(handles.list_subdir_civ1,'Value',1);
end

%------------------------------------------------------------------------
% --- Executes on button press in list_subdir_civ2.
function list_subdir_civ2_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
list_subdir_civ2=get(handles.list_subdir_civ2,'String');
val=get(handles.list_subdir_civ2,'Value');
if val>1
    subdir=list_subdir_civ2{val};
    set(handles.subdir_civ2,'String',subdir);
    set(handles.list_subdir_civ2,'Value',1);
end

%------------------------------------------------------------------------
% --- Executes on button press in browse_gridciv1.
function browse_gridciv1_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
value=get(handles.browse_gridciv1,'Value');
testgrid=0;
if value
	filebase=get(handles.displ_filebase,'String');
    [nbslice, flag_grid]=get_grid(filebase,handles);
    if isequal(flag_grid,1)
       filegrid=[num2str(nbslice) 'grid'];
       testgrid=1;
    else   
        [FileName, PathName, filterindex] = uigetfile( ...
               {'*.grid', ' (*.grid)';
                '*.grid',  '.grid files '; ...
                '*.*', 'All Files (*.*)'}, ...
                'Pick a file',filebase);
        filegrid=fullfile(PathName,FileName);
        if ~(isempty(FileName)||isempty(PathName)||isequal(FileName,0)||~exist(filegrid,'file'))
            testgrid=1;
        end
    end        
end
if testgrid
        set(handles.browse_gridciv2,'Value',1)
        set(handles.get_gridpatch1,'Value',1)
        set(handles.get_gridpatch2,'Value',1)
        set(handles.dx_civ1,'Visible','off');
        set(handles.dy_civ1,'Visible','off');
        set(handles.dx_civ2,'Visible','off');
        set(handles.dy_civ2,'Visible','off');
        set(handles.grid_civ1,'String',filegrid)      
        set(handles.grid_patch1,'String',filegrid)
        set(handles.grid_civ2,'String',filegrid)
        set(handles.grid_patch2,'String',filegrid)
    else
        set(handles.browse_gridciv1,'Value',0);
        set(handles.browse_gridciv2,'Value',0);
        set(handles.get_gridpatch1,'Value',0)
        set(handles.get_gridpatch2,'Value',0)
        set(handles.dx_civ1,'Visible','on');
        set(handles.dy_civ1,'Visible','on');
        set(handles.dx_civ2,'Visible','on');
        set(handles.dy_civ2,'Visible','on');
        set(handles.grid_civ1,'String','')      
        set(handles.grid_patch1,'String','')
        set(handles.grid_civ2,'String','')
        set(handles.grid_patch2,'String','')
end

%------------------------------------------------------------------------
% --- Executes on button press in browse_gridciv1.
function browse_gridciv2_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
value=get(handles.browse_gridciv2,'Value');
if value
	filebase=get(handles.displ_filebase,'String');
    [nbslice, flag_grid]=get_grid(filebase,handles);
    if isequal(flag_grid,1)
        mask_displ=[num2str(nbslice) 'grid'];
        set(handles.grid_civ2,'String',mask_displ)
        set(handles.dx_civ2,'Visible','off');
        set(handles.dy_civ2,'Visible','off');
    else   
        [FileName, PathName, filterindex] = uigetfile( ...
               {'*.grid', ' (*.grid)';
                '*.grid',  '.grid files '; ...
                '*.*', 'All Files (*.*)'}, ...
                'Pick a file',filebase);
        filegrid=fullfile(PathName,FileName);
        if isempty(FileName)|isempty(PathName)|isequal(FileName,0)|~exist(filegrid,'file')
            set(handles.browse_gridciv2,'Value',0);
            set(handles.grid_civ2,'string','');
            set(handles.dx_civ2,'Visible','on');
            set(handles.dy_civ2,'Visible','on');
            set(handles.grid_civ2,'string','');
        else
            set(handles.grid_civ2,'string',filegrid);
            set(handles.dx_civ2,'Visible','off');
            set(handles.dy_civ2,'Visible','off');
            set(handles.grid_civ2,'string',filegrid);
        end
    end
else
    set(handles.grid_civ2,'string','');
	set(handles.dx_civ2,'Visible','on');
	set(handles.dy_civ2,'Visible','on');
	set(handles.grid_civ2,'string','');
end

% % --- Executes on button press in browse_gridciv2.
% function browse_gridciv2_Callback(hObject, eventdata, handles)
% 
% filebase=get(handles.displ_filebase,'String');
% [FileName, PathName, filterindex] = uigetfile( ...
%        {'*.grid', ' (*.grid)';
%         '*.grid',  '.grid files '; ...
%         '*.*', 'All Files (*.*)'}, ...
%         'Pick a file',filebase);
% filegrid=fullfile(PathName,FileName);
% set(handles.grid_civ2,'string',filegrid);
% set(handles.dx_civ2,'String',' ');
% set(handles.dy_civ2,'String',' ');
% % set(handles.grid_patch2,'string',filegrid);

% --- Executes on button press in get_gridpatch1.
function get_gridpatch1_Callback(hObject, eventdata, handles)
% hObject    handle to get_gridpatch1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

filebase=get(handles.displ_filebase,'String');
[FileName, PathName, filterindex] = uigetfile( ...
       {'*.grid', ' (*.grid)';
        '*.grid',  '.grid files '; ...
        '*.*', 'All Files (*.*)'}, ...
        'Pick a file',filebase);
filegrid=fullfile(PathName,FileName);
set(handles.grid_patch1,'string',filegrid);
% set(handles.grid_patch2,'string',filegrid

%------------------------------------------------------------------------
% --- Executes on button press in get_gridpatch2.
function get_gridpatch2_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------

%------------------------------------------------------------------------
function enable_civ1(handles,state)
%------------------------------------------------------------------------
if isequal(state,0)
    state='off';
end
if isequal(state,1)
    state='on';
end
if isequal(state,'on')
    set(handles.frame_civ1,'BackgroundColor',[1 1 0])
    set(handles.frame_para_civ1,'BackgroundColor',[1 1 0])
    set(handles.frame_grid_civ1,'BackgroundColor',[1 1 0])
else
    set(handles.frame_civ1,'BackgroundColor',[0.831 0.816 0.784])
    set(handles.frame_para_civ1,'BackgroundColor',[0.831 0.816 0.784])
    set(handles.frame_grid_civ1,'BackgroundColor',[0.831 0.816 0.784])
end
set(handles.ibx,'Visible',state)
set(handles.iby,'Visible',state)
set(handles.isx,'Visible',state)
set(handles.isy,'Visible',state)
set(handles.shiftx,'Visible',state)
set(handles.shifty,'Visible',state)
set(handles.rho,'Visible',state)
set(handles.dx_civ1,'Visible',state)
set(handles.dy_civ1,'Visible',state)
set(handles.calcul_search,'Visible',state)
set(handles.u_text,'Visible',state)
set(handles.v_text,'Visible',state)
set(handles.min,'Visible',state)
set(handles.max,'Visible',state)
set(handles.umin,'Visible',state)
set(handles.umax,'Visible',state)
set(handles.vmin,'Visible',state)
set(handles.vmax,'Visible',state)
set(handles.grid_civ1,'Visible',state)
set(handles.mask_civ1,'Visible',state)
set(handles.browse_gridciv1,'Visible',state)
set(handles.get_mask_civ1,'Visible',state)
set(handles.parameters,'Visible',state)
set(handles.grid,'Visible',state)
set(handles.dx_civ1,'Visible',state)
set(handles.dy_civ1,'Visible',state)
set(handles.ImaThreshold,'Visible',state)
if isequal(state,'off')
    set(handles.MinIma,'Visible','off')
    set(handles.MaxIma,'Visible','off')
    set(handles.ImaThreshold,'Value',0)
end
set(handles.dx_civ1_title,'Visible',state)
set(handles.dy_civ1_title,'Visible',state)
set(handles.ImaThreshold_title,'Visible',state)
set(handles.ib_title,'Visible',state)
set(handles.is_title,'Visible',state)
set(handles.shift_title,'Visible',state)
set(handles.rho_title,'Visible',state)

%------------------------------------------------------------------------
function enable_fix1(handles,state)
%------------------------------------------------------------------------
if isequal(state,0)
    state='off';
end
if isequal(state,1)
    state='on';
end
if isequal(state,'on')
    set(handles.frame_fix1,'BackgroundColor',[1 1 0])
else
    set(handles.frame_fix1,'BackgroundColor',[0.7 0.7 0.7])
end
set(handles.REMOVE,'Visible',state)
set(handles.vec_Fmin2,'Visible',state)
set(handles.vec_F2,'Visible',state)
set(handles.vec_F3,'Visible',state)
set(handles.thresh_vecC,'Visible',state)
set(handles.thresh_vecC_title,'Visible',state)
set(handles.thresh_vel,'Visible',state)
set(handles.thresh_vel_text,'Visible',state)
set(handles.mask_fix1,'Visible',state)
set(handles.get_mask_fix1,'Visible',state)
set(handles.get_ref_fix1,'Visible',state)
set(handles.ref_fix1,'Visible',state)
set(handles.inf_sup1,'Visible',state)
set(handles.field_ref1,'Visible',state)

%------------------------------------------------------------------------
function enable_patch1(handles)
%------------------------------------------------------------------------
global patch_new_exe
set(handles.frame_patch1,'BackgroundColor',[1 1 0])
set(handles.rho_patch1,'Visible','on')
set(handles.rho_text1,'Visible','on')
set(handles.thresh_patch1,'Visible','on')
set(handles.thresh_text1,'Visible','on')
set(handles.subdomain_patch1,'Visible','on')
set(handles.subdomain_text1,'Visible','on')
set(handles.nx_patch1,'Visible','on')
set(handles.ny_patch1,'Visible','on')
set(handles.nx_patch1_title,'Visible','on')
set(handles.ny_patch1_title,'Visible','on')
if (~isequal(patch_new_exe,[]) & ~isequal(patch_new_exe,[]))
    set(handles.test_interp,'Visible','on');
end
set(handles.get_gridpatch1,'Visible','on')
set(handles.grid_patch1,'string','none');
set(handles.grid_patch1,'Visible','on')

%------------------------------------------------------------------------
function desable_patch1(handles)
%------------------------------------------------------------------------
set(handles.frame_patch1,'BackgroundColor',[0.831 0.816 0.784])
set(handles.rho_patch1,'Visible','off')
set(handles.rho_text1,'Visible','off')
set(handles.thresh_patch1,'Visible','off')
set(handles.thresh_text1,'Visible','off')
set(handles.subdomain_patch1,'Visible','off')
set(handles.subdomain_text1,'Visible','off')
set(handles.nx_patch1,'Visible','off')
set(handles.ny_patch1,'Visible','off')
set(handles.nx_patch1_title,'Visible','off')
set(handles.ny_patch1_title,'Visible','off')
set(handles.test_interp,'Visible','off')
set(handles.get_gridpatch1,'Visible','off')
set(handles.grid_patch1,'Visible','off')

%------------------------------------------------------------------------
function enable_civ2(handles,state)
%------------------------------------------------------------------------
if isequal(state,0)
    state='off';
end
if isequal(state,1)
    state='on';
end
if isequal(state,'on')
    set(handles.frame_civ2,'BackgroundColor',[1 1 0])
    set(handles.frame_para_civ2,'BackgroundColor',[1 1 0])
    set(handles.frame_grid_civ2,'BackgroundColor',[1 1 0])
    set(handles.frame_subdirciv2,'BackgroundColor',[1 1 0])
else
    set(handles.frame_civ2,'BackgroundColor',[0.831 0.816 0.784])
    set(handles.frame_para_civ2,'BackgroundColor',[0.831 0.816 0.784])
    set(handles.frame_grid_civ2,'BackgroundColor',[0.831 0.816 0.784])
    set(handles.frame_subdirciv2,'BackgroundColor',[0.831 0.816 0.784])
end
set(handles.ibx_civ2,'Visible',state)
set(handles.iby_civ2,'Visible',state)
set(handles.decimal,'Visible',state)
set(handles.deformation,'Visible',state)
set(handles.rho_civ2,'Visible',state)
set(handles.dx_civ2,'Visible',state)
set(handles.dy_civ2,'Visible',state)
set(handles.browse_gridciv2,'Visible',state)
set(handles.get_mask_civ2,'Visible',state)
set(handles.parameters,'Visible',state)
set(handles.grid,'Visible',state)
set(handles.parameters_text,'Visible',state)
set(handles.grid_text,'Visible',state)
set(handles.grid_civ2,'Visible',state)
set(handles.mask_civ2,'Visible',state)
set(handles.dx_civ2_title,'Visible',state)
set(handles.dy_civ2_title,'Visible',state)
set(handles.ibx_civ2_text,'Visible',state)
set(handles.rho_civ2_title,'Visible',state)
set(handles.ImaThreshold2,'Visible',state)
set(handles.ImaThreshold_title2,'Visible',state)
if isequal(state,'off')
    set(handles.MinIma2,'Visible','off')
    set(handles.MaxIma2,'Visible','off')
    set(handles.ImaThreshold2,'Value',0)
    if isequal(get(handles.FIX2,'Value'),0) & isequal(get(handles.PATCH2,'Value'),0) 
        set(handles.list_pair_civ2,'Visible','off')
        set(handles.subdir_civ2,'Visible','off')
        set(handles.subdir_civ2_text,'Visible','off')
    end
else
    set(handles.list_pair_civ2,'Visible','on')
    set(handles.subdir_civ2,'Visible','on')
    set(handles.subdir_civ2_text,'Visible','on')
end

%------------------------------------------------------------------------
function enable_fix2(handles)
%------------------------------------------------------------------------
set(handles.frame_fix2,'BackgroundColor',[1 1 0])
set(handles.REMOVE2,'Visible','on')
set(handles.vec_Fmin2_2,'Visible','on')
set(handles.vec_F4,'Visible','on')
set(handles.vec_F3_2,'Visible','on')
set(handles.thresh_vec2C,'Visible','on')
set(handles.thresh_vec2C_text,'Visible','on')
set(handles.thresh_vel2,'Visible','on')
set(handles.thresh_vel2_text,'Visible','on')
set(handles.mask_fix2,'Visible','on')
set(handles.get_mask_fix2,'Visible','on')
set(handles.list_pair_civ2,'Visible','on')
set(handles.subdir_civ2,'Visible','on')
set(handles.subdir_civ2_text,'Visible','on')
set(handles.get_ref_fix2,'Visible','on')
set(handles.ref_fix2,'Visible','on')
set(handles.inf_sup2,'Visible','on')
set(handles.field_ref2,'Visible','on')

%------------------------------------------------------------------------
function desable_fix2(handles)
%------------------------------------------------------------------------
set(handles.frame_fix2,'BackgroundColor',[0.831 0.816 0.784])
set(handles.REMOVE2,'Visible','off')
set(handles.vec_Fmin2_2,'Visible','off')
set(handles.vec_F4,'Visible','off')
set(handles.vec_F3_2,'Visible','off')
set(handles.thresh_vec2C,'Visible','off')
set(handles.thresh_vec2C_text,'Visible','off')
set(handles.thresh_vel2,'Visible','off')
set(handles.thresh_vel2_text,'Visible','off')
set(handles.mask_fix2,'Visible','off')
set(handles.get_mask_fix2,'Visible','off')
set(handles.get_ref_fix2,'Visible','off')
set(handles.ref_fix2,'Visible','off')
set(handles.inf_sup2,'Visible','off')
set(handles.field_ref2,'Visible','off')
if isequal(get(handles.CIV2,'Value'),0) & isequal(get(handles.PATCH2,'Value'),0) 
    set(handles.list_pair_civ2,'Visible','off')
    set(handles.subdir_civ2,'Visible','off')
    set(handles.subdir_civ2_text,'Visible','off')
end

%------------------------------------------------------------------------
function enable_patch2(handles)
%------------------------------------------------------------------------
set(handles.frame_patch2,'BackgroundColor',[1 1 0])
%set(handles.rho_patch2,'Visible','on')
set(handles.rho_text2,'Visible','on')
set(handles.thresh_patch2,'Visible','on')
set(handles.thresh_text2,'Visible','on')
set(handles.subdomain_patch2,'Visible','on')
set(handles.subdomain_text2,'Visible','on')
set(handles.nx_patch2,'Visible','on')
set(handles.ny_patch2,'Visible','on')
set(handles.nx_patch2_title,'Visible','on')
set(handles.ny_patch2_title,'Visible','on')
set(handles.get_gridpatch2,'Visible','on')
set(handles.grid_patch2,'Visible','on')
set(handles.list_pair_civ2,'Visible','on')
set(handles.subdir_civ2,'Visible','on')
set(handles.subdir_civ2_text,'Visible','on')

%------------------------------------------------------------------------
function desable_patch2(handles)
%------------------------------------------------------------------------
set(handles.frame_patch2,'BackgroundColor',[0.831 0.816 0.784])
set(handles.rho_patch2,'Visible','off')
set(handles.rho_text2,'Visible','off')
set(handles.thresh_patch2,'Visible','off')
set(handles.thresh_text2,'Visible','off')
set(handles.subdomain_patch2,'Visible','off')
set(handles.subdomain_text2,'Visible','off')
set(handles.nx_patch2,'Visible','off')
set(handles.ny_patch2,'Visible','off')
set(handles.nx_patch2_title,'Visible','off')
set(handles.ny_patch2_title,'Visible','off')
set(handles.get_gridpatch2,'Visible','off')
set(handles.grid_patch2,'Visible','off')
if isequal(get(handles.CIV2,'Value'),0) & isequal(get(handles.FIX2,'Value'),0) 
    set(handles.list_pair_civ2,'Visible','off')
    set(handles.subdir_civ2,'Visible','off')
    set(handles.subdir_civ2_text,'Visible','off')
end

%------------------------------------------------------------------------
function enable_pair1(handles,state)
%------------------------------------------------------------------------
set(handles.subdir_civ1,'Visible',state)
set(handles.list_subdir_civ1,'Visible',state)
set(handles.SUBDIR_CIV1_txt,'Visible',state)
set(handles.frame_subdirciv1,'Visible',state)
set(handles.list_pair_civ1,'Visible',state)
set(handles.PAIR_txt,'Visible',state)
%set(handles.dt_display_txt,'Visible',state)
set(handles.dt_unit,'Visible',state)
set(handles.PAIR_frame,'Visible',state)

%------------------------------------------------------------------------
% --- Read the parameters for civ1 on the interface
function par=read_param_civ1(handles,file_ima)
%------------------------------------------------------------------------
ibx_val=str2num(get(handles.ibx,'String'));
par.ibx=num2str(ibx_val);
iby_val=str2num(get(handles.iby,'String'));
par.iby=num2str(iby_val);
isx=get(handles.isx,'String');
if isempty(str2num(isx)), isx='41'; set(handles.isx,'String','41'), end; %default
if str2num(isx)<ibx_val+8,isx=num2str(ibx_val+8); set(handles.isx,'String',num2str(ibx_val+8)); end
isy=get(handles.isy,'String');
if isempty(str2num(isy)), isy='41'; set(handles.isy,'String','41'), end;%default
if str2num(isy)<iby_val+8,isy=num2str(iby_val+8); set(handles.isy,'String',num2str(iby_val+8)); end
par.isx=get(handles.isx,'String');
par.isy=get(handles.isy,'String');
par.shiftx=get(handles.shiftx,'String');
par.shifty=get(handles.shifty,'String');
if isempty(str2num(par.isx))
         par.isx='41';%default
         set(handles.isx,'String','41');
end
if isempty(str2num(par.isy))
         par.isy='41'; %default
         set(handles.isy,'String','41');
end
if isempty(str2num(par.shiftx))
         par.shiftx='0';%default
         set(handles.shiftx,'String','0');
end 
if isempty(str2num(par.shifty))
         par.shifty='0'; %default
         set(handles.shifty,'String','0');
end
 par.rho=get(handles.rho,'String');
 par.dx=get(handles.dx_civ1,'String');
 par.dy=get(handles.dy_civ1,'String');
 if isequal(str2num(par.dx),[]) 
     if isempty(get(handles.grid_civ1,'String'));
         par.dx='0'; %just read by civ program, not used
     else
        par.dx='20';%default
        set(handles.dx_civ1,'String','20');
     end
 end
 if isequal(str2num(par.dy),[])
     if isempty(get(handles.grid_civ1,'String'));
         par.dy='0';%just read by civ program, not used
     else
        par.dy='20';%default
        set(handles.dy_civ1_title,'String','20');
     end
 end
    par.pxcmx='1'; %velocities are expressed in pixel dispalcement
     par.pxcmy='1';
%      end
 A=imread(file_ima);%read the first image to get the size
 sizim=size(A);
 par.npx=num2str(sizim(2));
 par.npy=num2str(sizim(1));
 time=get(handles.displ_filebase,'UserData'); %get the set of times
 par.gridname=get(handles.grid_civ1,'String');
 par.gridflag='y';
 if isequal(par.gridname,'')| isempty(par.gridname)
     par.gridname='nogrid';
     par.gridflag='n';
 end

%------------------------------------------------------------------------
function par=read_param_civ2(handles,file_ima)
%------------------------------------------------------------------------
par.ibx=get(handles.ibx_civ2,'String');
par.iby=get(handles.iby_civ2,'String');
par.rho=get(handles.rho_civ2,'String');
par.decimal=int2str(get(handles.decimal,'Value'));
par.deformation=int2str(get(handles.deformation,'Value'));
par.dx=get(handles.dx_civ2,'String');
par.dy=get(handles.dy_civ2,'String');
if isequal(str2num(par.dx),[]) 
     if isempty(get(handles.grid_civ2,'String'));
         par.dx='0'; %just read by civ program, not used
     else
        par.dx='20';%default
        set(handles.dx_civ2,'String','20');
     end
 end
 if isequal(str2num(par.dy),[])
     if isempty(get(handles.grid_civ2,'String'));
         par.dy='0';%just read by civ program, not used
     else
        par.dy='20';%default
        set(handles.dy_civ2,'String','20');
     end
 end
 par.pxcmx='1';
 par.pxcmy='1';
A=imread(file_ima);%read the first image to get the size
sizim=size(A);
par.npx=num2str(sizim(2));
par.npy=num2str(sizim(1));
time=get(handles.displ_filebase,'UserData'); %get the set of times
par.gridname=get(handles.grid_civ2,'String');
par.gridflag='y';
if isequal(par.gridname,'')| isempty(par.gridname)
    par.gridname='nogrid';
    par.gridflag='n';
end

%------------------------------------------------------------------------
% --- CIV1  CIV1  CIV1 CIV1
function cmd_CIV1=BATCH_CIV1(filename,namelog,par,handles)
%------------------------------------------------------------------------
%pixels per cm and matrix of the image times, read from the .civ file by uvmat
global civ1_exe Civ_exe sge%name of the executable for civ1 calculation

%changes : filename_cmx -> filename ( no extension )

            if isequal(par.Dt,'0')
                par.Dt='1' ;%case of 'displacement' mode
            end         
%  
%     textcmx={'##############   CMX file';...
%     ['FirstImage ' par.filename_ima_a];...
%     ['LastImage  ' par.filename_ima_b];...
%     'XX' ;...
%     ['Mask ' par.maskflag] ;...
%     ['MaskName ' par.maskname];...
%     ['ImageSize ' par.npx ' ' par.npy];...   %VERIFIER CAS GENERAL ?
%     ['CorrelationBoxesSize ' par.ibx ' ' par.iby];...
%     ['SearchBoxeSize ' par.isx ' ' par.isy];...
%     ['RO ' par.rho];...
%     ['GridSpacing ' par.dx ' ' par.dy];...
%     'XX 1.0';...
%     ['Dt_TO ' par.Dt ' ' par.T0];...
%     ['PixCmXY ' par.pxcmx ' ' par.pxcmy];...
%     'XX 1';...
%     ['ShiftXY ' par.shiftx ' '  par.shifty];...
%     ['Grid ' par.gridflag];...
%     ['GridName ' par.gridname] ;...
%     'XX 85';...
%     'XX 1.0';...
%     'XX 1.0';...
%     'Hart 1';...
%     'DecimalShift 0';...
%     'Deformation 0';...
%     'CorrelationMin 0';...
%     'IntensityMin 0';...
%     'SeuilImage n';...
%     'SeuilImageValues 0 4096';...
%     ['ImageToUse ' par.term_a ' ' par.term_b];... % VERIFIER ?
%     'ImageUsedBefore null null'};
% 
%             textout=char(textcmx);

   fid=fopen([filename '.cmx'],'w');
fprintf(fid,['##############   CMX file' '\n' ]);
 fprintf(fid,   ['FirstImage ' par.filename_ima_a '\n' ]);
 fprintf(fid,   ['LastImage  ' par.filename_ima_b '\n' ]);
  fprintf(fid,  ['XX' '\n' ]);
  fprintf(fid,  ['Mask ' par.maskflag '\n' ]);
  fprintf(fid,  ['MaskName ' par.maskname '\n' ]);
 fprintf(fid,   ['ImageSize ' par.npx ' ' par.npy '\n' ]);   %VERIFIER CAS GENERAL ?
 fprintf(fid,   ['CorrelationBoxesSize ' par.ibx ' ' par.iby '\n' ]);
 fprintf(fid,   ['SearchBoxeSize ' par.isx ' ' par.isy '\n' ]);
 fprintf(fid,   ['RO ' par.rho '\n' ]);
 fprintf(fid,   ['GridSpacing ' par.dx ' ' par.dy '\n' ]);
 fprintf(fid,   ['XX 1.0' '\n' ]);
 fprintf(fid,   ['Dt_TO ' par.Dt ' ' par.T0 '\n' ]);
  fprintf(fid,  ['PixCmXY ' par.pxcmx ' ' par.pxcmy '\n' ]);
  fprintf(fid,  ['XX 1' '\n' ]);
 fprintf(fid,   ['ShiftXY ' par.shiftx ' '  par.shifty '\n' ]);
  fprintf(fid,  ['Grid ' par.gridflag '\n' ]);
 fprintf(fid,   ['GridName ' par.gridname '\n' ]);
 fprintf(fid,   ['XX 85' '\n' ]);
 fprintf(fid,   ['XX 1.0' '\n' ]);
 fprintf(fid,   ['XX 1.0' '\n' ]);
 fprintf(fid,   ['Hart 1' '\n' ]);
 fprintf(fid,  [ 'DecimalShift 0' '\n' ]);
 fprintf(fid,   ['Deformation 0' '\n' ]);
  fprintf(fid,  ['CorrelationMin 0' '\n' ]);
 fprintf(fid,   ['IntensityMin 0' '\n' ]);
  fprintf(fid,  ['SeuilImage n' '\n' ]);
 fprintf(fid,   ['SeuilImageValues 0 4096' '\n' ]);
 fprintf(fid,   ['ImageToUse ' par.term_a ' ' par.term_b '\n' ]); % VERIFIER ?
 fprintf(fid,   ['ImageUsedBefore null null' '\n' ]);
fclose(fid);
  
if sge  
    cmd_CIV1=[civ1_exe ' -f ' filename '.cmx' ]; % redirect standard output to the log file
else
    cmd_CIV1=[civ1_exe ' -f ' filename_cmx ' > ' namelog ' 2>&1']; % redirect standard output to the log file
end
if(isunix)
    [Rootbat,Filebat,extbat]=fileparts(namelog);
    ncName=fullfile(Rootbat,[ Filebat '.nc']);
    cmd_CIV1=[cmd_CIV1 '\n' 'mv ' namelog  ' ' namelog '.civ1.log' '\n' 'chmod g+w ' ncName];
else
    cmd_CIV1=[cmd_CIV1 '\n' 'copy /Y ' namelog ' ' namelog '.civ1.log'];
end

%------------------------------------------------------------------------
% --- CIV1  Unified
function xml_civ1_parameters=BATCH_CIV1_Unified(filename,namelog,par)
%------------------------------------------------------------------------
%pixels per cm and matrix of the image times, read from the .civ file by uvmat
global civ1_exe Civ_exe%name of the executable for civ1 calculation

    civ1.image1=par.filename_ima_a;
    civ1.image2=par.filename_ima_b;
    civ1.imageSize_X=par.npx; 
    civ1.imageSize_Y=par.npy;
    civ1.outputFileName=[filename '.nc'];
    civ1.correlationBoxesSize_X=par.ibx;
    civ1.correlationBoxesSize_Y=par.iby;
    civ1.searchBoxesSize_X=par.isx;
    civ1.searchBoxesSize_Y=par.isy;
    civ1.globalShift_X=par.shiftx;
    civ1.globalShift_Y=par.shifty;
    civ1.ro=par.rho;
    civ1.hart='y';
    if isequal(par.gridflag,'y')
        civ1.grid=par.gridname;
    else
        civ1.grid='n';
        civ1.gridSpacing_X=par.dx;
        civ1.gridSpacing_Y=par.dy;
    end
    if isequal(par.maskflag,'y')
        civ1.mask=par.maskname;
    end
    civ1.dt=par.Dt;
    civ1.unit='pixel';
    civ1.absolut_time_T0=par.T0;
    civ1.pixcmx=par.pxcmx;
    civ1.pixcmy=par.pxcmy;
    civ1.convectFlow='n';
  
    xml_civ1_parameters=civ1;

%------------------------------------------------------------------------
% --- CIV2  Unified
function civ2=BATCH_CIV2_Unified(filename,namelog,par)
%------------------------------------------------------------------------
%pixels per cm and matrix of the image times, read from the .civ file by uvmat
global civ2_exe Civ_exe%name of the executable for civ1 calculation

civ2.image1=par.filename_ima_a;
civ2.image2=par.filename_ima_b;
civ2.imageSize_X=par.npx; 
civ2.imageSize_Y=par.npy;
civ2.inputFileName=[par.filename_nc1 '.nc'];
civ2.outputFileName=[filename '.nc'];
civ2.correlationBoxesSize_X=par.ibx;
civ2.correlationBoxesSize_Y=par.iby;
civ2.ro=par.rho;
%civ2.decimalShift=par.decimal;
%civ2.deformation=par.deformation;
if isequal(par.decimal,'1')
    civ2.decimalShift='y';
else
    civ2.decimalShift='n';
end
if isequal(par.deformation,'1')
    civ2.deformation='y';
else
    civ2.deformation='n';
end
if isequal(par.gridflag,'y')
    civ2.grid=par.gridname;
else
    civ2.grid='n';
    civ2.gridSpacing_X=par.dx;
    civ2.gridSpacing_Y=par.dy;
end
civ2.gridSpacing_X='10';
civ2.gridSpacing_Y='10';%NOTE: faut mettre gridSpacing pourque ca tourne, meme si c'est la grille qui est utilisee
if isequal(par.maskflag,'y')
    civ2.mask=par.maskname;
else
    civ2.mask='n';
end
civ2.dt=par.Dt;
civ2.unit='pixel';
civ2.absolut_time_T0=par.T0;
civ2.pixcmx=par.pxcmx;
civ2.pixcmy=par.pxcmy;
civ2.convectFlow='n';
civ2.pixcmx=par.pxcmx;
civ2.pixcmy=par.pxcmy;
civ2.convectFlow='n';

%------------------------------------------------------------------------
% --- CIV2  CIV2  CIV2 CIV2
function cmd_CIV2=BATCH_CIV2(filename_cmx,namelog,par)
%------------------------------------------------------------------------
%pixels per cm and matrix of the image times, read from the .civ file by uvmat
global civ2_exe sge%name of the executable for civ1 calculation
   if isequal(par.Dt,'0')
                par.Dt='1' ;%case of 'displacement' mode
  end 
textcmx=['##############   CMX file'  '\n'...
['FirstImage ' par.filename_ima_a]  '\n'...
['LastImage  ' par.filename_ima_b]  '\n'...
'XX'   '\n'...
['Mask ' par.maskflag]  '\n'...
['MaskName ' par.maskname]  '\n'...
['ImageSize ' par.npx ' ' par.npy]  '\n'...   
['CorrelationBoxesSize ' par.ibx ' ' par.iby]  '\n'...
['SearchBoxeSize ' par.ibx ' ' par.iby]  '\n'...
['RO ' par.rho]  '\n'...
['GridSpacing ' par.dx ' ' par.dy]  '\n'...
'XX 1.0'  '\n'...
['Dt_TO ' par.Dt ' ' par.T0]  '\n'...
['PixCmXY ' par.pxcmx ' ' par.pxcmy]  '\n'...
'XX 1'  '\n'...
['ShiftXY 0 0']  '\n'...
['Grid ' par.gridflag]  '\n'...
['GridName ' par.gridname]  '\n'...
'XX 85'  '\n'...
'XX 1.0'  '\n'...
'XX 1.0'  '\n'...
'Hart 1'  '\n'...
['DecimalShift ' par.decimal]  '\n'...
['Deformation ' par.deformation]  '\n'...
'CorrelationMin 0'  '\n'...
'IntensityMin 0'  '\n'...
'SeuilImage n'  '\n'...
'SeuilImageValues 0 4096'  '\n'...
['ImageToUse ' par.term_a ' ' par.term_b]  '\n'... % VERIFIER ?
['ImageUsedBefore ' par.filename_nc1]];
textout=char(textcmx);
fid=fopen([filename_cmx '2'],'w');
fprintf(fid,textout); 
fclose(fid)
if sge
    cmd_CIV2=[civ2_exe ' -f ' filename_cmx ]; % redirect standard output to the log file
else
    cmd_CIV2=[civ2_exe ' -f ' filename_cmx ' > ' namelog ' 2>&1']; % redirect standard output to the log file
end

%------------------------------------------------------------------------
% --- Executes on button press in HELP.
function HELP_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
path_to_uvmat=which ('uvmat');% check the path of uvmat
pathelp=fileparts(path_to_uvmat);
helpfile=fullfile(pathelp,'uvmat_doc','uvmat_doc.html');
if isempty(dir(helpfile)), msgbox_uvmat('ERROR','Please put the help file uvmat_doc.html in the sub-directory /uvmat_doc of the UVMAT package')
else
    addpath (fullfile(pathelp,'uvmat_doc'))
    web([helpfile '#civ'])    
end

%------------------------------------------------------------------------
%--read images and convert them to the uint16 format used for PIV
function A=read_image(filename,nom_type,npx,npy,num);
%------------------------------------------------------------------------
%npx, npy are the dimensions needed for the raw SMD images
%num is the view number needed for an avi movie
if isequal(nom_type,'avi')
    mov=aviread(filename,num);
    A=frame2im(mov(1));
    A=sum(double(A),3);
    A=uint16(A);
elseif isequal(nom_type,'raw_SMD')
    [fid,message]=fopen(filename,'r');    
    B=fread(fid,Inf,'int16',0,'ieee-le');%read 16 bit binary file
    A=(reshape(B,npx,npy))'; %remplissage ligne par ligne avec une matrice colonne ? transposer(uB) pour avoir une matrice ligne
    A=uint16(A);
    fclose(fid);
else
    A=imread(filename);
    siz=size(A);
    if length(siz)==3;%color images
        A=sum(double(A),3);
    end
    A=uint16(A);
end

% %----------------------------------------------------------------
% %Executes on carriage return on the time interval dt
% %----------------------------------------------------------------
% function dt_Callback(hObject, eventdata, handles)
% %determine the set of times and possible intervals for CIV
% %                 answer=inputdlg('time interval between images?');
%                 dt=(1/1000)*str2num(get(handles.dt,'String'));
%                 nbfield=str2num(get(handles.nb_field,'String')); %last image number selected in the processing series
%                 time=(dt*[0:nbfield-1])';
% %                 set(handles.incr_i,'UserData',dt);%store the time interval between successive images
%                 set(handles.displ_filebase,'UserData',time); %store the set of times
%                 for index=1:min(nbfield-1,200)
%                     displ_num(1,index)=1;
%                     displ_num(2,index)=1;
%                     displ_num(3,index)=-floor(index/2);
%                     displ_num(4,index)=ceil(index/2);
%                 end
% set(handles.list_pair_civ1,'Value',1);
% set(handles.list_pair_civ1,'UserData',displ_num);
% set(handles.list_pair_civ2,'Value',1);
% %update the list of time intervals
% find_netcpair_civ1(hObject, eventdata, handles)
% find_netcpair_civ2(hObject, eventdata, handles)

%------------------------------------------------------------------------
function ref_i_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
mode_list=get(handles.mode,'String');
mode_value=get(handles.mode,'Value');
mode=mode_list{mode_value};
%if isequal(get(handles.CIV1,'Value'),0)|| isequal(mode,'series(Di)') 
    find_netcpair_civ1(hObject, eventdata, handles);% update the menu of pairs depending on the available netcdf files
%end
if isequal(mode,'series(Di)') || ...% we do patch2 only
   (get(handles.CIV2,'Value')==0 & get(handles.CIV1,'Value')==0 & get(handles.FIX1,'Value')==0 & get(handles.PATCH1,'Value')==0)
    find_netcpair_civ2(hObject, eventdata, handles);
end

%------------------------------------------------------------------------
function ref_j_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
mode_list=get(handles.mode,'String');
mode_value=get(handles.mode,'Value');
mode=mode_list{mode_value};
if isequal(get(handles.CIV1,'Value'),0)| isequal(mode,'series(Dj)') 
    find_netcpair_civ1(hObject, eventdata, handles);% update the menu of pairs depending on the available netcdf files
end
if isequal(mode,'series(Dj)') | ...
   (get(handles.CIV2,'Value')==0 & get(handles.CIV1,'Value')==0 & get(handles.FIX1,'Value')==0 & get(handles.PATCH1,'Value')==0)
    find_netcpair_civ2(hObject, eventdata, handles);
end

%------------------------------------------------------------------------
% --- Executes on button press in compare.
function compare_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
test=get(handles.compare,'Value');
if test==2 || test==3    
    filebase=get(handles.displ_filebase,'String');
    browse=get(handles.browse_root,'Userdata');
    browse.nom_type_ima1=browse.nom_type_ima;
    set(handles.browse_root,'UserData',browse);
    set(handles.sub_txt,'Visible','on')
    set(handles.displ_filebase2,'Visible','On');%mkes the second file input window visible 
    mode_store=get(handles.mode,'String');%get the present 'mode'
    set(handles.compare,'UserData',mode_store);%store the mode display  
    set(handles.mode,'Visible','off')
    if test==2
        set(handles.mode,'Visible','off')       
    else
        set(handles.mode,'Visible','on')
    end
    
    % open an image file with the browser
    ind_opening=1;%default
    browse.incr_pair=[0 0]; %default
    oldfile=get(handles.displ_filebase,'String');
    menu={'*.xml;*.avi;*.AVI;*.nc','(*.xml,*.avi,*.nc)'; ...
            '*.xml', '.xml files';'*.avi;*.AVI', '.avi files';'*.nc', '.nc files';...
            '*.*', 'All Files (*.*)'};
    [FileName, PathName, filtindex] = uigetfile( menu, 'Pick a file',oldfile);
    fileinput=[PathName FileName];%complete file name 
    sizf=size(fileinput);
    if (~ischar(fileinput)|~isequal(sizf(1),1)),return;end %stop if fileinput not a character string
    [path,name,ext]=fileparts(fileinput);
    [path1]=fileparts(filebase);
    if ~strcmp(path1,path)
         msgbox_uvmat('ERROR','The two  input image series must be in the same directory')
        return
    end
    set(handles.displ_filebase2,'String',name);
    [RootPath,RootFile,field_count,str2,str_a,str_b,xx,nom_type,subdir]=name2display(name);
    browse=get(handles.browse_root,'UserData');
    browse.nom_type_ima_1=nom_type;
    set(handles.browse_root,'UserData',browse)  
    
    %check image extension
    if ~strcmp(ext,get(handles.ext_ima,'String'))
        msgbox_uvmat('ERROR','The two  input image series must have the same extenion name')
        return
    end
    
    %check image size
    A=imread(fileinput);
    npxy=get(handles.ext_ima,'UserData');
    if ~isequal(npxy(1),size(A,1))|| ~isequal(npxy(2),size(A,2))
        msgbox_uvmat('ERROR','The two input image series must have the same size')
        return
    end
else
    set(handles.mode,'Visible','on')
    set(handles.displ_filebase2,'Visible','Off');
    set(handles.sub_txt,'Visible','off')
    set(handles.displ_filebase2,'String',[]);
    mode_store=get(handles.compare,'UserData');
    set(handles.mode,'String',mode_store)
    set(handles.test_stereo1,'Value',0)
    set(handles.test_stereo2,'Value',0)
end
mode_Callback(hObject, eventdata, handles)

%------------------------------------------------------------------------
% --- Executes on button press in get_ref_fix1.
function get_ref_fix1_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
filebase=get(handles.displ_filebase,'String');
[FileName, PathName, filterindex] = uigetfile( ...
       {'*.nc', ' (*.nc)';
        '*.nc',  'netcdf files '; ...
        '*.*', 'All Files (*.*)'}, ...
        'Pick a file',filebase);
    
fileinput=[PathName FileName];
sizf=size(fileinput);
if (~ischar(fileinput)|~isequal(sizf(1),1)),return;end %stop if fileinput not a character string
[Path,File,field_count,str2,str_a,str_b,ref.ext,ref.nom_type,ref.subdir]=name2display(fileinput);
ref.filebase=fullfile(Path,File);
ref.num_a=stra2num(str_a);
ref.num_b=stra2num(str_b);
ref.num1=str2num(field_count);
ref.num2=str2num(str2);
browse=[];%initialisation
if ~isequal(ref.ext,'.nc')
    msgbox_uvmat('ERROR','the reference file must be in netcdf format (*.nc)')
    return
end
set(handles.ref_fix1,'String',[fullfile(ref.subdir,File) '....nc']);
set(handles.ref_fix1,'UserData',ref)
menu_field{1}='civ1';
Data=nc2struct(fileinput,[]);
if isfield(Data,'patch') & isequal(Data.patch,1)
    menu_field{2}='filter1';
end
if isfield(Data,'civ2') & isequal(Data.civ2,1)
    menu_field{3}='civ2';
end
if isfield(Data,'patch2') & isequal(Data.patch2,1)
    menu_field{4}='filter2';
end
set(handles.field_ref1,'String',menu_field);
set(handles.field_ref1,'Value',length(menu_field));
set(handles.inf_sup1,'Value',2);
set(handles.thresh_vel,'String','1');%default threshold
set(handles.ref_fix1,'Enable','on')

%------------------------------------------------------------------------
% --- Executes on button press in get_ref_fix2.
function get_ref_fix2_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
if isequal(get(handles.get_ref_fix2,'Value'),1)
    filebase=get(handles.displ_filebase,'String');
    [FileName, PathName, filterindex] = uigetfile( ...
           {'*.nc', ' (*.nc)';
            '*.nc',  'netcdf files '; ...
            '*.*', 'All Files (*.*)'}, ...
            'Pick a file',filebase);
    fileinput=[PathName FileName];
    sizf=size(fileinput);
    if (~ischar(fileinput)|~isequal(sizf(1),1)),return;end %stop if fileinput not a character string
    [Path,File,field_count,str2,str_a,str_b,ref.ext,ref.nom_type,ref.subdir]=name2display(fileinput);
    ref.filebase=fullfile(Path,File);
    ref.num_a=stra2num(str_a);
    ref.num_b=stra2num(str_b);
    ref.num1=str2num(field_count);
    ref.num2=str2num(str2);
    browse=[];%initialisation
    if ~isequal(ref.ext,'.nc')
        msgbox_uvmat('ERROR','the reference file must be in netcdf format (*.nc)')
        return
    end
    set(handles.ref_fix2,'String',[fullfile(ref.subdir,File) '....nc']);
    set(handles.ref_fix2,'UserData',ref)    
    menu_field{1}='civ1';
    Data=nc2struct(fileinput,[]);
    if isfield(Data,'patch') & isequal(Data.patch,1)
        menu_field{2}='filter1';
    end
    if isfield(Data,'civ2') & isequal(Data.civ2,1)
        menu_field{3}='civ2';
    end
    if isfield(Data,'patch2') & isequal(Data.patch2,1)
        menu_field{4}='filter2';
    end
    set(handles.field_ref2,'String',menu_field);
    set(handles.field_ref2,'Value',length(menu_field));
    set(handles.inf_sup2,'Value',2);
    set(handles.thresh_vel2,'String','1');%default threshold
    set(handles.ref_fix2,'Enable','on')
    set(handles.ref_fix2,'Visible','on')
    set(handles.field_ref2,'Visible','on')
else
    set(handles.ref_fix2,'Visible','off')
    set(handles.field_ref2,'Visible','off')
end

%------------------------------------------------------------------------
function ref_fix1_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
set(handles.inf_sup1,'Value',1);
set(handles.field_ref1,'Value',1)
set(handles.field_ref1,'String',{' '})
set(handles.ref_fix1,'UserData',[]);
set(handles.ref_fix1,'String','');
set(handles.thresh_vel1,'String','0');
 
%------------------------------------------------------------------------
function ref_fix2_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
set(handles.inf_sup2,'Value',1);
set(handles.field_ref2,'Value',1)
set(handles.field_ref2,'String',{' '})
set(handles.ref_fix2,'UserData',[]);
set(handles.ref_fix2,'String','');
set(handles.thresh_vel2,'String','0');

%------------------------------------------------------------------------
% transform letters to numbers
function numres=stra2num(str)
%------------------------------------------------------------------------
numres=double(str)-96;
if double(str) >= 48 & double(str) <= 57 % = 1 for numbers
    numres=str2num(str);
end

%------------------------------------------------------------------------
% --- Executes on button press in test_stereo1.
function test_stereo1_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
if isequal(get(handles.test_stereo1,'Value'),0)
    set(handles.subdomain_patch1,'Visible','on')
    set(handles.rho_patch1,'Visible','on')
else
    set(handles.subdomain_patch1,'Visible','off')
    set(handles.rho_patch1,'Visible','off')
end

%------------------------------------------------------------------------
% --- Executes on button press in test_stereo2.
function test_stereo2_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
if isequal(get(handles.test_stereo2,'Value'),0)
    set(handles.subdomain_patch2,'Visible','on')
    set(handles.rho_patch2,'Visible','on')
else
    set(handles.subdomain_patch2,'Visible','off')
    set(handles.rho_patch2,'Visible','off')
end

%------------------------------------------------------------------------
% --- Executes on button press in ImaThreshold.
function ImaThreshold_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
if isequal(get(handles.ImaThreshold,'Value'),1)
    set(handles.MinIma,'Visible','on')
    set(handles.MaxIma,'Visible','on')
else
    set(handles.MinIma,'Visible','off')
    set(handles.MaxIma,'Visible','off')
end

%------------------------------------------------------------------------
% --- Executes on button press in ImaThreshold2.
function ImaThreshold2_Callback(hObject, eventdata, handles)
%------------------------------------------------------------------------
if isequal(get(handles.ImaThreshold2,'Value'),1)
    set(handles.MinIma2,'Visible','on')
    set(handles.MaxIma2,'Visible','on')
else
    set(handles.MinIma2,'Visible','off')
    set(handles.MaxIma2,'Visible','off')
end

