source: trunk/src/plot_field.m @ 72

Last change on this file since 72 was 72, checked in by sommeria, 11 years ago

ima2vol: write image volumes in 16 bits (test for civ_3D)
plot-text removed: put as a sub-function of plot_field
uvmat: movie stops in case of error in reding files
bug fixes for reading 3D vel fields

File size: 49.7 KB
Line 
1%'plot_field': plot any field with the structure defined in the uvmat package
2%------------------------------------------------------------------------
3%
4%  This function is used by uvmat to plot fields. It automatically chooses the representation
5% appropriate to the input field structure:
6%     2D vector fields are represented by arrows, 2D scalar fiedlds by grey scale images or contour plots, 1D fields are represented by usual plot with (abscissa, ordinate).
7%  The input field structure is first tested by check_field_structure.m,
8%  then split into blocks of related variables  by find_field_indices.m.
9%  The dimensionality of each block is obtained  by this fuction
10%  considering the presence of variables with the attribute .Role='coord_x'
11%  and/or coord_y and/or coord_z (case of unstructured coordinates), or
12%  dimension variables (case of matrices).
13%
14% function [PlotType,PlotParamOut,haxes]= plot_field(Data,haxes,PlotParam,htext,PosColorbar)
15%
16% OUPUT:
17% PlotType: type of plot: 'text','line'(curve plot),'plane':2D view,'volume'
18% PlotParamOut: structure, representing the updated  plotting parameters, in case of automatic scaling
19% haxes: handle of the plotting axis, when a new figure is created.
20%
21%INPUT
22%    Data:   structure describing the field to plot
23%         (optional) .ListGlobalAttribute: cell listing the names of the global attributes
24%                    .Att_1,Att_2... : values of the global attributes
25%         (requested)  .ListVarName: list of variable names to select (cell array of  char strings {'VarName1', 'VarName2',...} )
26%         (requested)  .VarDimName: list of dimension names for each element of .ListVarName (cell array of string cells)
27%                      .VarAttribute: cell of attributes for each element of .ListVarName (cell array of structures of the form VarAtt.key=value)
28%         (requested) .Var1, .Var2....: variables (Matlab arrays) with names listed in .ListVarName
29
30%            Variable attribute .Role :
31%    The only variable attribute used for plotting purpose is .Role which can take
32%    the values
33        %       Role = 'scalar':  (default) represents a scalar field
34        %            = 'coord_x', 'coord_y',  'coord_z': represents a separate set of
35        %                        unstructured coordinate x, y  or z
36        %            = 'vector': represents a vector field whose number of components
37        %                is given by the last dimension (called 'nb_dim')
38        %            = 'vector_x', 'vector_y', 'vector_z'  :represents the x, y or z  component of a vector 
39        %            = 'warnflag' : provides a warning flag about the quality of data in a 'Field', default=0, no warning
40        %            = 'errorflag': provides an error flag marking false data,
41        %                   default=0, no error. Different non zero values can represent different criteria of elimination.
42
43
44%         additional elements characterizing the projection object (should not be necessary)--
45%            Data.Style : style of projection object
46%            Data.XObject,.YObject: set of coordinates defining the object position;
47%            Data.ProjMode=type of projection ;
48%            Data.ProjAngle=angle of projection;
49%            Data.DX,.DY,.DZ=increments;
50%            Data.MaxY,MinY: min and max Y
51
52%   haxes: handle of the plotting axes to update with the new plot. If this input is absent or not a valid axes handle, a new figure is created.
53%
54%   PlotParam: parameters for plotting, as read on the uvmat interface (by function 'read_plot_param.m')
55%     .FixedLimits:=0 (default) adjust axes limit to the X,Y data, =1: preserves the previous axes limits
56%     .Auto_xy: =0 (default): kepp 1 to 1 aspect ratio for x and y scales, =1: automatic adjustment of the graph
57%            --scalars--
58%    .Scalar.MaxA: upper bound (saturation color) for the scalar representation, max(field) by default
59%    .Scalar.MinA: lower bound (saturation) for the scalar representation, min(field) by default
60%    .Scalar.AutoScal: =1 (default) lower and upper bounds of the scalar representation set to the min and max of the field
61%               =0 lower and upper bound imposed by .AMax and .MinA
62%    .Scalar.BW= 1 black and white representation imposed, =0 by default.
63%    .Scalar.Contours= 1: represent scalars by contour plots (Matlab function 'contour'); =0 by default
64%    .IncrA : contour interval
65%            -- vectors--
66%    .Vectors.VecScale: scale for the vector representation
67%    .Vectors.AutoVec: =0 (default) automatic length for vector representation, =1: length set by .VecScale
68%    .Vectors.HideFalse= 0 (default) false vectors represented in magenta, =1: false vectors not represented;
69%    .Vectors.HideWarning= 0 (default) vectors marked by warnflag~=0 marked in black, 1: no warning representation;
70%    .Vectors.decimate4 = 0 (default) all vectors reprtesented, =1: half of  the vectors represented along each coordinate
71%         -- vector color--
72%    .Vectors.ColorCode= 'black','white': imposed color  (default ='blue')
73%                        'rgb', : three colors red, blue, green depending
74%                        on thresholds .colcode1 and .colcode2 on the input  scalar value (C)
75%                        'brg': like rgb but reversed color order (blue, green, red)
76%                        '64 colors': continuous color from blue to red (multijet)
77%    .Vectors.colcode1 : first threshold for rgb, first value for'continuous'
78%    .Vectors.colcode2 : second threshold for rgb, last value (saturation) for 'continuous'
79%    .Vectors.FixedCbounds;  =0 (default): the bounds on C representation are min and max, =1: they are fixed by .Minc and .MaxC
80%    .Vectors.MinC = imposed minimum of the scalar field used for vector color;
81%    .Vectors.MaxC = imposed maximum of the scalar field used for vector color;
82%
83%
84% PosColorbar: if not empty, display a colorbar for B&W images
85%               imposed position of the colorbar (ex [0.821 0.471 0.019 0.445])
86%
87%AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
88%  Copyright Joel Sommeria, 2008, LEGI / CNRS-UJF-INPG, sommeria@coriolis-legi.org.
89%AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
90%     This file is part of the toolbox UVMAT.
91%
92%     UVMAT is free software; you can redistribute it and/or modify
93%     it under the terms of the GNU General Public License as published by
94%     the Free Software Foundation; either version 2 of the License, or
95%     (at your option) any later version.
96%
97%     UVMAT is distributed in the hope that it will be useful,
98%     but WITHOUT ANY WARRANTY; without even the implied warranty of
99%     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
100%     GNU General Public License (file UVMAT/COPYING.txt) for more details.
101%AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
102
103function [PlotType,PlotParamOut,haxes]= plot_field(Data,haxes,PlotParam,htext,PosColorbar)
104% TODO:
105% use htext: handles of the text edit box (uicontrol)
106% introduce PlotParam.Hold: 'on' or 'off' (for curves)
107 
108%default output
109if ~exist('PlotParam','var'),PlotParam=[];end;
110if ~exist('htext','var'),htext=[];end;
111if ~exist('PosColorbar','var'),PosColorbar=[];end;
112PlotType='text'; %default
113PlotParamOut=PlotParam;%default
114
115% check input structure
116[Data,errormsg]=check_field_structure(Data);
117
118if ~isempty(errormsg)
119    msgbox_uvmat('ERROR',['input of plot_field/check_field_structure: ' errormsg])
120    display(['input of plot_field/check_field_structure:: ' errormsg])
121    return
122end
123
124testnewfig=1;%test to create a new figure (default)
125testzoomaxes=0;%test for the existence of a zoom secondary figure attached to the plotting axes
126if exist('haxes','var')
127    if ishandle(haxes)
128        if isequal(get(haxes,'Type'),'axes')
129            axes(haxes)
130            testnewfig=0;
131            AxeData=get(haxes,'UserData');
132            if isfield(AxeData,'ZoomAxes')&& ishandle(AxeData.ZoomAxes)
133                if isequal(get(AxeData.ZoomAxes,'Type'),'axes')
134                    testzoomaxes=1;
135                    zoomaxes=AxeData.ZoomAxes;
136                end
137            end
138        end
139    end
140end
141if testnewfig% create a new figure and axes if the plotting axes does not exist
142    hfig=figure;
143    if isfield(Data,'IndexObj')&isfield(Data,'Style')&isfield(Data,'ProjMode')
144        figname=[num2str(Data.IndexObj) '-' Data.Style];
145        set(hfig,'Name',figname)
146    end
147    testhandle=0;
148    if isfield(PlotParam,'text_display_1')& ishandle(PlotParam.text_display_1)
149        set(hfig,'UserData',PlotParam)
150        testhandle=1;
151    end
152    set(hfig,'Units','normalized')
153    set(hfig,'WindowButtonDownFcn','mouse_down')
154    %set(hfig,'WindowButtonMotionFcn',{'mouse_motion',PlotParam})%set mouse action function
155    set(hfig,'WindowButtonMotionFcn','mouse_motion')%set mouse action function
156    set(hfig,'WindowButtonUpFcn','mouse_up')%set mouse action function
157    haxes=axes;
158    set(haxes,'position',[0.13,0.2,0.775,0.73])
159else
160    hstack=findobj(allchild(0),'Type','figure');%current stack order of figures in matlab
161end
162if isfield(PlotParam,'text_display_1')& ishandle(PlotParam.text_display_1)
163    PlotParam=read_plot_param(PlotParam);   
164end
165if testnewfig
166  PlotParam.NextPlot='add'; %parameter for plot_profile and plot_hist
167end
168if isfield(PlotParam,'Auto_xy') && isequal(PlotParam.Auto_xy,1)
169    set(haxes,'DataAspectRatioMode','auto')%automatic aspect ratio
170end
171
172% check the cells of fields :
173testnbdim=1;
174[CellVarIndex,NbDim,VarType,errormsg]=find_field_indices(Data);
175
176if ~isempty(errormsg)
177    msgbox_uvmat('ERROR',['input of plot_field/find_field_indices: ' errormsg])
178    display(['input of plot_field: ' errormsg])
179    return
180end
181if ~isfield(Data,'NbDim') %& ~isfield(Data,'Style')%determine the space dimensionb if not defined: choose the kind of plot
182    [Data.NbDim,imax]=max(NbDim);
183end
184if isequal(Data.NbDim,0)
185        AxeData=plot_text(Data,htext);
186        PlotType='text';
187elseif isequal(Data.NbDim,1)
188    [AxeData,haxes]=plot_profile(Data,CellVarIndex,VarType,haxes,PlotParam);%
189    if testzoomaxes
190        [AxeData,zoomaxes,PlotParamOut]=plot_profile(Data,CellVarIndex,VarType,zoomaxes,PlotParam);
191        AxeData.ZoomAxes=zoomaxes;
192    end
193    PlotType='line';
194elseif isequal(Data.NbDim,2)
195    ind_select=find(NbDim>=2);
196    if numel(ind_select)>2
197        msgbox_uvmat('ERROR',['more than two fields to map'])
198        display(['more than two fields to map'])
199        return
200    end
201    [AxeData,haxes,PlotParamOut,PlotType]=plot_plane(Data,CellVarIndex(ind_select),VarType(ind_select),haxes,PlotParam,htext,PosColorbar);
202    if testzoomaxes
203        [AxeData,zoomaxes,PlotParamOut]=plot_plane(Data,CellVarIndex(ind_select),VarType(ind_select),zoomaxes,PlotParam,1,PosColorbar);
204        AxeData.ZoomAxes=zoomaxes;
205    end
206elseif isequal(Data.NbDim,3)
207    msgbox_uvmat('ERROR','volume plot not implemented yet')
208    return
209else
210    testnbdim=0;
211end
212
213%display (or delete) error message
214htext=findobj(haxes,'Tag','hTxt');
215if isfield(Data,'Txt')
216    if isempty(htext)
217        Xlim=get(haxes,'XLim');
218        Ylim=get(haxes,'YLim');
219        htext=text(Xlim(1),(Ylim(1)+Ylim(2))/2,Data.Txt,'Tag','hTxt','Color','r');
220        set(htext,'Interpreter','none')
221    else
222        set(htext,'String',Data.Txt)
223    end
224elseif ~isempty(htext)
225    delete(htext)
226end
227
228% set graph aspect ratio
229
230
231set(haxes,'UserData',AxeData)
232if ~testnewfig
233set(0,'Children',hstack);%put back the initial figure stack after plot creation
234%set(haxes,'Tag','uvmat');
235end
236
237
238%-------------------------------------------------------------------
239function hdisplay=plot_text(FieldData,hdisplay_in)
240%-------------------------------------------------------------------
241if exist('hdisplay_in','var') & ishandle(hdisplay_in) & isequal(get(hdisplay_in,'Type'),'uicontrol')
242    hdisplay=hdisplay_in;
243else
244    figure;%create new figure
245    hdisplay=uicontrol('Style','edit', 'Units','normalized','Position', [0 0 1 1],'Max',2,'FontName','monospaced');
246end
247   
248ff=fields(FieldData);%list of field names
249vv=struct2cell(FieldData);%list of field values
250
251for icell=1:length(vv)
252    Tabcell{icell,1}=ff{icell};
253    ss=vv{icell};
254    sizss=size(ss);
255    if isnumeric(ss)
256        if sizss(1)<=1 & length(ss)<5
257            displ{icell}=num2str(ss);
258        else
259            displ{icell}=[class(ss) ', size ' num2str(size(ss))];
260        end
261    elseif ischar(ss)
262        displ{icell}=ss;
263    elseif iscell(ss)
264        sizcell=size(ss);
265        if sizcell(1)==1 & length(sizcell)==2 %line cell
266           ssline='{''';
267           for icolumn=1:sizcell(2)
268               if isnumeric(ss{icolumn})
269                   if size(ss{icolumn},1)<=1 & length(ss{icolumn})<5
270                      sscolumn=num2str(ss{icolumn});%line vector
271                   else
272                      sscolumn=[class(ss{icolumn}) ', size ' num2str(size(ss{icolumn}))];
273                   end
274               elseif ischar(ss{icolumn})
275                   sscolumn=ss{icolumn};
276               else
277                   sscolumn=class(ss{icolumn});
278               end
279               if icolumn==1
280                   ssline=[ssline sscolumn];
281               else
282                   ssline=[ssline ''',''' sscolumn];
283               end
284           end
285           displ{icell}=[ssline '''}'];
286        else
287           displ{icell}=[class(ss) ', size ' num2str(sizcell)];
288        end
289    else
290        displ{icell}=class(ss);
291    end
292    Tabcell{icell,2}=displ{icell};
293end
294Tabchar=cell2tab(Tabcell,': ');
295set(hdisplay,'String', Tabchar)
296
297
298%-------------------------------------------------------------------
299function [AxeData,haxes]=plot_profile(data,CellVarIndex,VarType,haxes,PlotParam)
300%-------------------------------------------------------------------
301%axes(haxes)
302hfig=get(haxes,'parent');
303AxeData=data;
304
305ColorOrder=[1 0 0;0 0.5 0;0 0 1;0 0.75 0.75;0.75 0 0.75;0.75 0.75 0;0.25 0.25 0.25];
306set(haxes,'ColorOrder',ColorOrder)
307if isfield(PlotParam,'NextPlot')
308    set(haxes,'NextPlot',PlotParam.NextPlot)
309end
310% adjust the size of the plot to include the whole field,
311if isfield(PlotParam,'FixedLimits') && isequal(PlotParam.FixedLimits,1)  %adjust the graph limits*
312    set(haxes,'XLimMode', 'manual')
313    set(haxes,'YLimMode', 'manual')
314else
315    set(haxes,'XLimMode', 'auto')
316    set(haxes,'YLimMode', 'auto')
317end
318legend_str={};
319
320%initiates string of the plot command
321plotstr='hhh=plot(';
322textmean={};
323abscissa_name='';
324coord_x_index=[];
325test_newplot=1;
326for icell=1:length(CellVarIndex)
327    testfalse=0;
328    VarIndex=CellVarIndex{icell};%  indices of the selected variables in the list data.ListVarName
329    DimCell=data.VarDimName{VarIndex(1)};
330    if ischar(DimCell)
331        DimCell={DimCell};
332    end
333    XName=DimCell{1}; %first dimension considered as abscissa
334    if ~isempty(VarType{icell}.coord_x)
335        coord_x_index=VarType{icell}.coord_x;
336    else
337        coord_x_index_cell=VarType{icell}.coord(1);
338        if isequal(coord_x_index_cell,0)
339            continue  % the cell has no abscissa, skip it
340        end
341        if ~isempty(coord_x_index)&&~isequal(coord_x_index_cell,coord_x_index)
342            continue %all the selected variables must have the same first dimension
343        else
344            coord_x_index=coord_x_index_cell;
345        end
346    end
347    testplot=ones(size(data.ListVarName));%default test for plotted variables
348    testcoordvar=0;
349    charplot_0='''-''';%default
350    if isfield(data,'ObjectProjMode')& isequal(data.ObjectProjMode,'projection')
351        charplot_0='+';
352    end
353    xtitle=''; 
354   
355    xtitle=data.ListVarName{coord_x_index};
356    eval(['coord_x{icell}=data.' data.ListVarName{coord_x_index} ';']);%coordinate variable set as coord_x
357    if isfield(data,'VarAttribute')&& numel(data.VarAttribute)>=coord_x_index && isfield(data.VarAttribute{coord_x_index},'units')
358         xtitle=[xtitle '(' data.VarAttribute{coord_x_index}.units ')'];
359    end
360    eval(['coord_x{icell}=data.' data.ListVarName{coord_x_index} ';']);%coordinate variable set as coord_x
361    testcoordvar=1;
362    testplot(coord_x_index)=0;
363    if ~isempty(VarType{icell}.ancillary')
364            testplot(VarType{icell}.ancillary)=0;
365    end
366    if ~isempty(VarType{icell}.warnflag')
367            testplot(VarType{icell}.warnflag)=0;
368    end
369 
370    if isfield(data,'VarAttribute')
371        VarAttribute=data.VarAttribute;
372        for ivar=1:length(VarIndex)
373             if length(VarAttribute)>=VarIndex(ivar) & isfield(VarAttribute{VarIndex(ivar)},'long_name')
374                 plotname{VarIndex(ivar)}=VarAttribute{VarIndex(ivar)}.long_name;
375             else
376                 plotname{VarIndex(ivar)}=data.ListVarName{VarIndex(ivar)};%name for display in plot A METTRE
377             end
378        end
379    end
380    hh=findobj(haxes,'tag','plot_line');
381    if isequal(numel(hh),numel(find(testplot(VarIndex))))%update existing curves
382        icurve=0;
383        test_newplot=0;
384        if ~isempty(VarType{icell}.discrete')
385            charplot_0='+';
386            LineStyle='none';
387        else
388            charplot_0='none';
389            LineStyle='-';
390        end
391        for ivar=1:length(VarIndex)
392            if testplot(VarIndex(ivar))
393                icurve=icurve+1;
394                VarName=data.ListVarName{VarIndex(ivar)};
395                eval(['data.' VarName '=squeeze(data.' VarName ');'])
396                set(hh(icurve),'LineStyle',LineStyle)
397                set(hh(icurve),'Marker',charplot_0)
398%                 if isequal(VarName,'A')
399%                     set(hh(icurve),'LineStyle','-');
400%                 else
401%                     set(hh(icurve),'LineStyle',charplot_0);
402%                 end
403                set(hh(icurve),'XData',coord_x{icell})
404                eval(['yy=data.' VarName ';'])
405                set(hh(icurve),'YData',yy);
406%                 eval(['nbcomponent2=size(data.' VarName ',2);']);
407%                 eval(['nbcomponent1=size(data.' VarName ',1);']);
408%                 if numel(coord_x{icell})==2
409%                     coord_x{icell}=linspace(coord_x{icell}(1),coord_x{icell}(2),nbcomponent1);
410%                 end
411%                 eval(['varmean=mean(double(data.' VarName '));']);%mean value
412%                 textmean=[textmean; {[VarName 'mean= ' num2str(varmean,4)]}];
413%                 if nbcomponent1==1| nbcomponent2==1
414%                     legend_str=[legend_str {VarName}]; %variable with one component
415%                 else  %variable with severals  components
416%                     for ic=1:min(nbcomponent1,nbcomponent2)
417%                         legend_str=[legend_str [VarName '_' num2str(ic)]]; %variable with severals  components
418%                     end                                                   % labeled by their index (e.g. color component)
419%                 end
420            end
421        end
422    else% new plot
423        if ~isempty(VarType{icell}.discrete')
424            charplot_0='''+''';
425        else
426            charplot_0='''-''';
427        end
428        for ivar=1:length(VarIndex)
429            if testplot(VarIndex(ivar))
430                VarName=data.ListVarName{VarIndex(ivar)};
431                eval(['data.' VarName '=squeeze(data.' VarName ');'])
432%                 if isequal(VarName,'A')
433%                     charplot='''-''';
434%                 else
435%                     charplot=charplot_0;
436%                 end
437                plotstr=[plotstr 'coord_x{' num2str(icell) '},data.' VarName ',' charplot_0 ','];
438                eval(['nbcomponent2=size(data.' VarName ',2);']);
439                eval(['nbcomponent1=size(data.' VarName ',1);']);
440                if numel(coord_x{icell})==2
441                    coord_x{icell}=linspace(coord_x{icell}(1),coord_x{icell}(2),nbcomponent1);
442                end
443                eval(['varmean=mean(double(data.' VarName '));']);%mean value
444                textmean=[textmean; {[VarName 'mean= ' num2str(varmean,4)]}];
445                if nbcomponent1==1| nbcomponent2==1
446                    legend_str=[legend_str {VarName}]; %variable with one component
447                else  %variable with severals  components
448                    for ic=1:min(nbcomponent1,nbcomponent2)
449                        legend_str=[legend_str [VarName '_' num2str(ic)]]; %variable with severals  components
450                    end                                                   % labeled by their index (e.g. color component)
451                end
452            end
453        end
454    end
455end
456if test_newplot && ~isequal(plotstr,'plot(')
457    plotstr=[plotstr '''tag'',''plot_line'')']
458                %execute plot (instruction  plotstr) 
459    eval(plotstr)
460   
461                %%%%%
462    grid(haxes, 'on')
463    hxlabel=xlabel(xtitle);
464    set(hxlabel,'Interpreter','none')% desable tex interpreter
465    if length(legend_str)>=1
466        hylabel=ylabel(legend_str{end});
467        set(hylabel,'Interpreter','none')% desable tex interpreter
468    end
469    if ~isempty(legend_str)
470        hlegend=findobj(hfig,'Tag','legend');
471        if isempty(hlegend)
472            hlegend=legend(legend_str);
473            txt=ver;
474            Release=txt(1).Release;
475            relnumb=str2num(Release(3:4));
476            if relnumb >= 14
477                set(hlegend,'Interpreter','none')% desable tex interpreter
478            end
479        else
480            legend_old=get(hlegend,'String');
481            if isequal(size(legend_old,1),size(legend_str,1))&~isequal(legend_old,legend_str)
482                set(hlegend,'String',[legend_old legend_str]);
483            end
484        end
485    end
486    title_str='';
487    if isfield(data,'filename')
488       [Path, title_str, ext]=fileparts(data.filename);
489       title_str=[title_str ext];
490    end
491    if isfield(data,'Action')
492        if ~isequal(title_str,'')
493            title_str=[title_str ', '];
494        end
495        title_str=[title_str data.Action];
496    end
497    htitle=title(title_str);
498    txt=ver;
499    Release=txt(1).Release;
500    relnumb=str2num(Release(3:4));
501    if relnumb >= 14
502        set(htitle,'Interpreter','none')% desable tex interpreter
503    end
504    % A REPRENDRE Mean
505%         hlist=findobj(gcf,'Style','listbox','Tag','liststat');
506%         if isempty(hlist)
507%             'text'
508%             textmean
509%             set(gca,'position',[0.13,0.2,0.775,0.73])
510%             uicontrol('Style','popupmenu','Position',[20 20 200 20],'String',textmean,'Tag','liststat');
511%         else
512%             set(hlist(1),'String',textmean)
513%         end
514end
515
516
517%-------------------------------------------------------------------
518function [AxeData,haxes,PlotParamOut,PlotType]=plot_plane(Data,CellVarIndex,VarTypeCell,haxes,PlotParam,htext,PosColorbar)
519%-------------------------------------------------------------------
520grid(haxes, 'off')
521%default plotting parameters
522PlotType='plane';%default
523if ~exist('PlotParam','var')
524    PlotParam=[];
525end
526if ~isfield(PlotParam,'Scalar')
527    PlotParam.Scalar=[];
528end
529if ~isfield(PlotParam,'Vectors')
530    PlotParam.Vectors=[];
531end
532PlotParamOut=PlotParam;%default
533
534%plotting axes
535hfig=get(haxes,'parent');
536hcol=findobj(hfig,'Tag','Colorbar'); %look for colorbar axes
537hima=findobj(haxes,'Tag','ima');% search existing image in the current axes
538AxeData=get(haxes,'UserData'); %default
539if ~isstruct(AxeData)% AxeData must be a structure
540    AxeData=[];
541end
542AxeData.NbDim=2;
543if isfield(Data,'ObjectCoord')
544    AxeData.ObjectCoord=Data.ObjectCoord;
545end
546
547test_ima=0; %default: test for image or map plot
548test_vec=0; %default: test for vector plots
549test_black=0;
550test_false=0;
551test_C=0;
552XName='';
553x_units='';
554YName='';
555y_units='';
556for icell=1:length(CellVarIndex) % length(CellVarIndex) =1 or 2 (from the calling function)
557%     VarIndex=CellVarIndex{icell};
558    VarType=VarTypeCell{icell};
559    ivar_X=VarType.coord_x; % defines (unique) index for the variable representing unstructured x coordinate (default =[])
560    ivar_Y=VarType.coord_y; % defines (unique)index for the variable representing unstructured y coordinate (default =[])
561    ivar_U=VarType.vector_x; % defines (unique) index for the variable representing x vector component (default =[])
562    ivar_V=VarType.vector_y; % defines (unique) index for the variable representing y vector component (default =[])
563    ivar_C=[VarType.scalar VarType.image VarType.color VarType.ancillary]; %defines index (indices) for the scalar or ancillary fields
564    if numel(ivar_C)>1
565        msgbox_uvmat('ERROR','error in plot_field: too many scalar inputs')
566        return
567    end
568    ivar_F=VarType.warnflag; %defines index (unique) for warning flag variable
569    ivar_FF=VarType.errorflag; %defines index (unique) for error flag variable
570    ind_coord=find(VarType.coord);
571    if numel(ind_coord)==2
572        VarType.coord=VarType.coord(ind_coord);
573    end
574    idim_Y=[]; 
575    test_grid=0;
576    if ~isempty(ivar_U) && ~isempty(ivar_V)% vector components detected
577        if test_vec
578            msgbox_uvmat('ERROR','error in plot_field: attempt to plot two vector fields')
579            return
580        else
581            test_vec=1;
582            eval(['vec_U=Data.' Data.ListVarName{ivar_U} ';'])
583            eval(['vec_V=Data.' Data.ListVarName{ivar_V} ';'])
584            if ~isempty(ivar_X) && ~isempty(ivar_Y)% 2D field (with unstructured coordinates or structured ones (then ivar_X and ivar_Y empty)     
585                eval(['vec_X=Data.' Data.ListVarName{ivar_X} ';'])
586                eval(['vec_Y=Data.' Data.ListVarName{ivar_Y} ';'])
587            elseif numel(VarType.coord)==2 & VarType.coord~=[0 0];%coordinates defines by dimension variables
588                eval(['y=Data.' Data.ListVarName{VarType.coord(1)} ';'])
589                eval(['x=Data.' Data.ListVarName{VarType.coord(2)} ';'])
590                if numel(y)==2 % y defined by first and last values on aregular mesh
591                    y=linspace(y(1),y(2),size(vec_U,1));
592                end
593                if numel(x)==2 % y defined by first and last values on aregular mesh
594                    x=linspace(x(1),x(2),size(vec_U,2));
595                end
596                [vec_X,vec_Y]=meshgrid(x,y); 
597            else
598                msgbox_uvmat('ERROR','error in plot_field: invalid coordinate definition for vector field')
599                return
600            end
601            if ~isempty(ivar_C)
602                 eval(['vec_C=Data.' Data.ListVarName{ivar_C} ';']) ;
603                 vec_C=reshape(vec_C,1,numel(vec_C));
604                 test_C=1;
605            end
606            if ~isempty(ivar_F)%~(isfield(PlotParam.Vectors,'HideWarning')&& isequal(PlotParam.Vectors.HideWarning,1))
607                if test_vec
608                    eval(['vec_F=Data.' Data.ListVarName{ivar_F} ';']) % warning flags for  dubious vectors
609                    if  ~(isfield(PlotParam.Vectors,'HideWarning') && isequal(PlotParam.Vectors.HideWarning,1))
610                        test_black=1;
611                    end
612                end
613            end
614            if ~isempty(ivar_FF) %&& ~test_false
615                if test_vec% TODO: deal with FF for structured coordinates
616                    eval(['vec_FF=Data.' Data.ListVarName{ivar_FF} ';']) % flags for false vectors
617                end
618            end
619        end
620    elseif ~isempty(ivar_C) %scalar or image
621        if test_ima
622             msgbox_uvmat('ERROR','attempt to plot two scalar fields or images')
623            return
624        end
625        eval(['A=squeeze(Data.' Data.ListVarName{ivar_C} ');']) ;% scalar represented as color image
626        test_ima=1;
627        if ~isempty(ivar_X) && ~isempty(ivar_Y)% 2D field (with unstructured coordinates or structured ones (then ivar_X and ivar_Y empty)
628            XName=Data.ListVarName{ivar_X};
629            YName=Data.ListVarName{ivar_Y};
630            eval(['AX=Data.' XName ';'])
631            eval(['AY=Data.' YName ';'])
632            [A,AX,AY]=proj_grid(AX',AY',A',[],[],'np>256');  % interpolate on a grid 
633            if isfield(Data,'VarAttribute')
634                if numel(Data.VarAttribute)>=ivar_X & isfield(Data.VarAttribute{ivar_X},'units')
635                    x_units=['(' Data.VarAttribute{ivar_X}.units ')'];
636                end
637                if numel(Data.VarAttribute)>=ivar_Y & isfield(Data.VarAttribute{ivar_Y},'units')
638                    y_units=['(' Data.VarAttribute{ivar_Y}.units ')'];
639                end
640            end       
641        elseif numel(VarType.coord)==2 %structured coordinates
642            XName=Data.ListVarName{VarType.coord(2)};
643            YName=Data.ListVarName{VarType.coord(1)};
644            eval(['AY=Data.' Data.ListVarName{VarType.coord(1)} ';'])
645            eval(['AX=Data.' Data.ListVarName{VarType.coord(2)} ';'])
646            test_interp_X=0; %default, regularly meshed X coordinate
647            test_interp_Y=0; %default, regularly meshed Y coordinate
648            if isfield(Data,'VarAttribute')
649                if numel(Data.VarAttribute)>=VarType.coord(2) & isfield(Data.VarAttribute{VarType.coord(2)},'units')
650                    x_units=['(' Data.VarAttribute{VarType.coord(2)}.units ')'];
651                end
652                if numel(Data.VarAttribute)>=VarType.coord(1) & isfield(Data.VarAttribute{VarType.coord(1)},'units')
653                    y_units=['(' Data.VarAttribute{VarType.coord(1)}.units ')'];
654                end
655            end 
656            if numel(AY)>2
657                DAY=diff(AY);
658                DAY_min=min(DAY);
659                DAY_max=max(DAY);
660                if sign(DAY_min)~=sign(DAY_max);% =1 for increasing values, 0 otherwise
661                     errormsg=['errror in plot_field.m: non monotonic dimension variable # ' ListVarName{VarType.coord(1)} ];
662                      return
663                end
664                test_interp_Y=(DAY_max-DAY_min)> 0.0001*abs(DAY_max);
665            end
666            if numel(AX)>2
667                DAX=diff(AX);
668                DAX_min=min(DAX);
669                DAX_max=max(DAX);
670                if sign(DAX_min)~=sign(DAX_max);% =1 for increasing values, 0 otherwise
671                     errormsg=['errror in plot_field.m: non monotonic dimension variable # ' ListVarName{VarType.coord(2)} ];
672                      return
673                end
674                test_interp_X=(DAX_max-DAX_min)> 0.0001*abs(DAX_max);
675            end 
676            if test_interp_Y         
677                npxy(1)=max([256 floor((AY(end)-AY(1))/DAY_min) floor((AY(end)-AY(1))/DAY_max)]);
678                yI=linspace(AY(1),AY(end),npxy(1));
679                if ~test_interp_X
680                    xI=linspace(AX(1),AX(end),size(A,2));%default
681                    AX=xI;
682                end
683            end
684            if test_interp_X 
685                npxy(1)=max([256 floor((AX(end)-AX(1))/DAX_min) floor((AX(end)-AX(1))/DAX_max)]);
686                xI=linspace(AX(1),AX(end),npxy(2));   
687                if ~test_interp_Y
688                   yI=linspace(AY(1),AY(end),size(A,1));
689                   AY=yI;
690                end
691            end
692            if test_interp_X || test_interp_Y               
693                [AX2D,AY2D]=meshgrid(AX,AY);
694                A=interp2(AX2D,AY2D,double(A),xI,yI');
695            end
696            AX=[AX(1) AX(end)];% keep only the lower and upper bounds for image represnetation
697            AY=[AY(1) AY(end)];
698        else
699            msgbox_uvmat('ERROR','error in plot_field: invalid coordinate definition ')
700            return
701        end
702          x_label=[Data.ListVarName{ivar_X} '(' x_units ')'];
703    end       
704%     if isfield(Data,'VarAttribute')
705%         VarAttribute=Data.VarAttribute;
706%     end   
707end
708
709%%%%%%%%%%%%%%%%%%%%%   image or scalar plot %%%%%%%%%%%%%%%%%%%%%%%%%%
710
711if ~isfield(PlotParam.Scalar,'Contours')
712    PlotParam.Scalar.Contours=0; %default
713end
714PlotParamOut=PlotParam; %default
715if test_ima
716    % distinguish B/W and color images
717    np=size(A);%size of image
718    siz=size(np);
719    %set the color map
720    if siz(2)==2 %for black and white images
721        if ~isfield(PlotParam.Scalar,'AutoScal')
722            PlotParam.Scalar.AutoScal=0;%default
723        end
724        if ~isfield(PlotParam.Scalar,'MinA')
725            PlotParam.Scalar.MinA=[];%default
726        end
727        if ~isfield(PlotParam.Scalar,'MaxA')
728            PlotParam.Scalar.MaxA=[];%default
729        end
730        if isequal(PlotParam.Scalar.AutoScal,0)|isempty(PlotParam.Scalar.MinA)|~isa(PlotParam.Scalar.MinA,'double')  %correct if there is no numerical data in edit box
731            MinA=double(min(min(A)));
732        else
733            MinA=PlotParam.Scalar.MinA; 
734        end;
735        if isequal(PlotParam.Scalar.AutoScal,0)|isempty(PlotParam.Scalar.MaxA)|~isa(PlotParam.Scalar.MaxA,'double') %correct if there is no numerical data in edit box
736            MaxA=double(max(max(A)));
737        else
738            MaxA=PlotParam.Scalar.MaxA; 
739        end;
740        PlotParamOut.Scalar.MinA=MinA;
741        PlotParamOut.Scalar.MaxA=MaxA;
742        axes(haxes)
743        if isequal(PlotParam.Scalar.Contours,1)
744            if ~isempty(hima) & ishandle(hima)
745                delete(hima)
746            end
747            if ~isfield(PlotParam.Scalar,'IncrA')
748                PlotParam.Scalar.IncrA=[];
749            end
750            if isempty(PlotParam.Scalar.IncrA)% | PlotParam.Scalar.AutoScal==0
751                cont=colbartick(MinA,MaxA);
752                intercont=cont(2)-cont(1);%default
753                PlotParamOut.Scalar.IncrA=intercont;
754            else
755               intercont=PlotParam.Scalar.IncrA;
756            end
757            B=A;           
758            abscontmin=intercont*floor(MinA/intercont);
759            abscontmax=intercont*ceil(MaxA/intercont);
760            contmin=intercont*floor(min(min(B))/intercont);
761            contmax=intercont*ceil(max(max(B))/intercont);
762            cont_pos_plus=[0:intercont:contmax];
763            cont_pos_min=[double(contmin):intercont:-intercont];
764            cont_pos=[cont_pos_min cont_pos_plus];
765            sizpx=(AX(end)-AX(1))/(np(2)-1);
766            sizpy=(AY(1)-AY(end))/(np(1)-1);
767            x_cont=[AX(1):sizpx:AX(end)]; % pixel x coordinates for image display
768            y_cont=[AY(1):-sizpy:AY(end)]; % pixel x coordinates for image display
769            txt=ver;%version of Matlab
770            Release=txt(1).Release;
771            relnumb=str2num(Release(3:4));
772            if relnumb >= 14
773                    vec=linspace(0,1,(abscontmax-abscontmin)/intercont);%define a greyscale colormap with steps intercont
774                map=[vec' vec' vec'];
775                colormap(map);
776                [var,hcontour]=contour(x_cont,y_cont,B,cont_pos);       
777                set(hcontour,'Fill','on')
778                set(hcontour,'LineStyle','none')
779                hold on
780            end
781            [var_p,hcontour_p]=contour(x_cont,y_cont,B,cont_pos_plus,'k-');
782            hold on
783            [var_m,hcontour_m]=contour(x_cont,y_cont,B,cont_pos_min,':');
784            set(hcontour_m,'LineColor',[1 1 1])
785            hold off
786            caxis([abscontmin abscontmax])
787            colormap(map);
788        end
789        if ~isequal(PlotParam.Scalar.Contours,1)       
790            % rescale the grey levels with min and max, put a grey scale colorbar
791            if (isfield(PlotParam.Scalar,'BW')& (isequal(PlotParam.Scalar.BW,1))|isa(A,'uint8')| isa(A,'uint16'))%images
792                B=A;
793                vec=linspace(0,1,255);%define a linear greyscale colormap
794                map=[vec' vec' vec'];
795                colormap(map);  %grey scale color map
796            else
797                B=A;
798                colormap('default'); % standard faulse colors for div, vort , scalar fields
799            end
800        end
801    elseif siz(2)==3 %color images
802        axes(haxes)
803        B=uint8(A);
804        MinA=0;
805        MaxA=255;
806    end
807    if ~isequal(PlotParam.Scalar.Contours,1)
808        %interpolate to increase resolution
809        test_interp=1;
810        if max(np) <= 64
811            npxy=8*np;% increase the resolution 8 times
812        elseif max(np) <= 128
813            npxy=4*np;% increase the resolution 4 times
814        elseif max(np) <= 256
815            npxy=2*np;% increase the resolution 2 times
816        else
817            npxy=np;
818            test_interp=0; % no interpolation done
819        end
820        if test_interp==1%if we interpolate   
821            x=linspace(AX(1),AX(2),np(2));
822            y=linspace(AY(1),AY(2),np(1));
823            [X,Y]=meshgrid(x,y);
824            xi=linspace(AX(1),AX(2),npxy(2));
825            yi=linspace(AY(1),AY(2),npxy(1));
826            B = interp2(X,Y,double(B),xi,yi');
827        end       
828        if isempty(hima)
829            tag=get(haxes,'Tag');
830            hima=imagesc(AX,AY,B,[MinA MaxA]);
831            set(hima,'Tag','ima','HitTest','off')
832            set(haxes,'Tag',tag);%preserve the axes tag (removed by image fct !!!)       
833        else
834            set(hima,'CData',B);
835            if MinA<MaxA
836                caxis([MinA MaxA])
837            else
838                caxis([MinA MinA+1])
839            end
840            set(hima,'XData',AX);
841            set(hima,'YData',AY);
842        end
843    end
844    if ~isstruct(AxeData)
845        AxeData=[];
846    end
847    AxeData.A=A;
848    AxeData.AX=[AX(1) AX(end)];
849    AxeData.AY=[AY(1) AY(end)];
850    test_ima=1;
851    %display the colorbar code for B/W images if Poscolorbar not empty
852    if siz(2)==2 & exist('PosColorbar','var')& ~isempty(PosColorbar)
853        if isempty(hcol)|~ishandle(hcol)
854             hcol=colorbar;%create new colorbar
855        end
856        if length(PosColorbar)==4
857                 set(hcol,'Position',PosColorbar)           
858        end
859        YTick=0;%default
860        if MaxA>MinA
861            if isequal(PlotParam.Scalar.Contours,1)
862                colbarlim=get(hcol,'YLim');
863                scale_bar=(colbarlim(2)-colbarlim(1))/(abscontmax-abscontmin);               
864                YTick=cont_pos(2:end-1);
865                YTick_scaled=colbarlim(1)+scale_bar*(YTick-abscontmin);
866                set(hcol,'YTick',YTick_scaled);
867            elseif (isfield(PlotParam.Scalar,'BW') & isequal(PlotParam.Scalar.BW,1))|isa(A,'uint8')| isa(A,'uint16')%images
868                hi=get(hcol,'children');
869                if iscell(hi)%multiple images in colorbar
870                    hi=hi{1};
871                end
872                set(hi,'YData',[MinA MaxA])
873                set(hi,'CData',[1:256]')
874                set(hcol,'YLim',[MinA MaxA])
875                YTick=colbartick(MinA,MaxA);
876                set(hcol,'YTick',YTick)               
877            else
878                hi=get(hcol,'children');
879                if iscell(hi)%multiple images in colorbar
880                    hi=hi{1};
881                end
882                set(hi,'YData',[MinA MaxA])
883                set(hi,'CData',[1:64]')
884                YTick=colbartick(MinA,MaxA);
885                set(hcol,'YLim',[MinA MaxA])
886                set(hcol,'YTick',YTick)
887            end
888            set(hcol,'Yticklabel',num2str(YTick'));
889        end
890    elseif ishandle(hcol)
891        delete(hcol); %erase existing colorbar if not needed
892    end
893else%no scalar plot
894    if ~isempty(hima) && ishandle(hima)
895        delete(hima)
896    end
897    if ~isempty(hcol)&& ishandle(hcol)
898       delete(hcol)
899    end
900    AxeData.A=[];
901    AxeData.AX=[];
902    AxeData.AY=[];
903    PlotParamOut=rmfield(PlotParamOut,'Scalar');
904end
905
906%%%%%%%%%%%%%%%%%%%%%   vector plot %%%%%%%%%%%%%%%%%%%%%%%%%%
907if test_vec
908   %vector scale representation
909    if size(vec_U,1)==numel(vec_Y) && size(vec_U,2)==numel(vec_X); % x, y  coordinate variables
910        [vec_X,vec_Y]=meshgrid(vec_X,vec_Y);
911    end   
912    vec_X=reshape(vec_X,1,numel(vec_X));%reshape in matlab vectors
913    vec_Y=reshape(vec_Y,1,numel(vec_Y));
914    vec_U=reshape(vec_U,1,numel(vec_U));
915    vec_V=reshape(vec_V,1,numel(vec_V));
916    MinMaxX=max(vec_X)-min(vec_X)
917    MinMaxY=max(vec_Y)-min(vec_Y)
918    AxeData.Mesh=sqrt((MinMaxX*MinMaxY)/length(vec_X));
919    if  ~isfield(PlotParam.Vectors,'AutoVec') || isequal(PlotParam.Vectors.AutoVec,0)|| ~isfield(PlotParam.Vectors,'VecScale')...
920               ||isempty(PlotParam.Vectors.VecScale)||~isa(PlotParam.Vectors.VecScale,'double') %automatic vector scale
921        scale=[];
922        if test_false %remove false vectors
923            indsel=find(AxeData.FF==0);%indsel =indices of good vectors
924        else     
925            indsel=[1:numel(vec_X)];%
926        end
927        if isempty(vec_U)
928            scale=1;
929        else
930            if isempty(indsel)
931                MaxU=max(abs(vec_U));
932                MaxV=max(abs(vec_V));
933            else
934                MaxU=max(abs(vec_U(indsel)));
935                MaxV=max(abs(vec_V(indsel)));
936            end
937            scale=MinMaxX/(max(MaxU,MaxV)*50);
938            PlotParam.Vectors.VecScale=scale;%update the 'scale' display
939        end
940    else
941        scale=PlotParam.Vectors.VecScale;  %impose the length of vector representation
942    end;
943   
944    %record vectors on the plotting axes
945    if test_C==0
946        vec_C=ones(1,numel(vec_X));
947    end
948    AxeData.X=vec_X';
949    AxeData.Y=vec_Y';
950    AxeData.U=vec_U';
951    AxeData.V=vec_V';
952    AxeData.C=vec_C';
953    if isempty(ivar_F)
954        AxeData.F=[];
955    else
956        AxeData.F=vec_F';
957    end
958    if isempty(ivar_FF)
959        AxeData.FF=[];
960    else
961        AxeData.FF=vec_FF';
962    end
963%     if isfield(Data,'W')
964%         AxeData.W=Data.W;
965%     end
966   
967    %decimate by a factor 2 in vector mesh(4 in nbre of vectors)
968    if isfield(PlotParam.Vectors,'decimate4')&isequal(PlotParam.Vectors.decimate4,1)
969        diffy=diff(vec_Y); %difference dy=vec_Y(i+1)-vec_Y(i)
970        dy_thresh=max(abs(diffy))/2;
971        ind_jump=find(abs(diffy) > dy_thresh); %indices with diff(vec_Y)> max/2, detect change of line
972        ind_sel=[1:ind_jump(1)];%select the first line
973        for i=2:2:length(ind_jump)-1
974            ind_sel=[ind_sel [ind_jump(i)+1:ind_jump(i+1)]];% select the odd lines
975        end
976        nb_sel=length(ind_sel);
977        ind_sel=ind_sel([1:2:nb_sel]);% take half the points on a line
978        vec_X=vec_X(ind_sel);
979        vec_Y=vec_Y(ind_sel);
980        vec_U=vec_U(ind_sel);
981        vec_V=vec_V(ind_sel);
982        vec_C=vec_C(ind_sel);
983        if ~isempty(ivar_F)
984           vec_F=vec_F(ind_sel);
985        end
986        if ~isempty(ivar_FF)
987           vec_FF=vec_FF(ind_sel);
988        end
989    end
990   
991    %get main level color code
992    [colorlist,col_vec,PlotParamOut.Vectors]=set_col_vec(PlotParam.Vectors,vec_C);
993    % take flags into account: add flag colors to the list of colors
994    sizlist=size(colorlist);
995    nbcolor=sizlist(1);
996    if test_black
997       nbcolor=nbcolor+1;
998       colorlist(nbcolor,:)=[0 0 0]; %add black to the list of colors
999       if ~isempty(ivar_FF)
1000            ind_flag=find(vec_F~=1 & vec_FF==0);  %flag warning but not false
1001       else
1002            ind_flag=find(vec_F~=1);
1003       end
1004       col_vec(ind_flag)=nbcolor;   
1005    end
1006    nbcolor=nbcolor+1;
1007    if ~isempty(ivar_FF)
1008        ind_flag=find(vec_FF~=0);
1009        if isfield(PlotParam.Vectors,'HideFalse') && PlotParam.Vectors.HideFalse==1
1010            colorlist(nbcolor,:)=[NaN NaN NaN];% no plot of false vectors
1011        else
1012            colorlist(nbcolor,:)=[1 0 1];% magenta color
1013        end
1014        col_vec(ind_flag)=nbcolor;
1015    end
1016    %plot vectors:
1017    quiresetn(haxes,vec_X,vec_Y,vec_U,vec_V,scale,colorlist,col_vec);   
1018else
1019    hvec=findobj(haxes,'Tag','vel');
1020    if ~isempty(hvec)
1021        delete(hvec);
1022    end
1023    AxeData.X=[];
1024    AxeData.Y=[];
1025    AxeData.U=[];
1026    AxeData.V=[];
1027    AxeData.C=[];
1028    AxeData.W=[];
1029    AxeData.F=[];
1030     AxeData.FF=[];
1031    AxeData.Mesh=[];
1032    PlotParamOut=rmfield(PlotParamOut,'Vectors');
1033end
1034if isfield(Data,'Z')
1035    AxeData.Z=Data.Z;% A REVOIR
1036end
1037listfields={'AY','AX','A','X','Y','U','V','C','W','F','FF'};
1038listdim={'AY','AX',{'AY','AX'},'nb_vectors','nb_vectors','nb_vectors','nb_vectors','nb_vectors','nb_vectors','nb_vectors','nb_vectors'};
1039Role={'coord_y','coord_x','scalar','coord_x','coord_y','vector_x','vector_y','scalar','vector_z','warnflag','errorflag'};
1040ind_select=[];
1041nbvar=0;
1042AxeData.ListVarName={};
1043AxeData.VarDimName={};
1044AxeData.VarAttribute={};
1045for ilist=1:numel(listfields)
1046    eval(['testvar=isfield(AxeData,listfields{ilist}) && ~isempty(AxeData.' listfields{ilist} ');'])
1047    if testvar
1048        nbvar=nbvar+1;
1049        AxeData.ListVarName{nbvar}=listfields{ilist};
1050        AxeData.VarDimName{nbvar}=listdim{ilist};
1051        AxeData.VarAttribute{nbvar}.Role=Role{ilist};
1052    end
1053end
1054
1055% adjust the size of the plot to include the whole field, except if PlotParam.FixedLimits=1
1056if ~(isfield(PlotParam,'FixedLimits') && PlotParam.FixedLimits)
1057    %~(exist('KeepLim','var') && isequal(KeepLim,1))  %adjust the graph limits*
1058        test_lim=0;
1059        if test_vec
1060            Xlim=[min(vec_X) max(vec_X)];
1061            Ylim=[min(vec_Y) max(vec_Y)];
1062            test_lim=1;
1063            if test_ima%both background image and vectors coexist, take the wider bound
1064                Xlim(1)=min(AX(1),Xlim(1));
1065                Xlim(2)=max(AX(end),Xlim(2));
1066                Ylim(1)=min(AY(end),Ylim(1));
1067                Ylim(2)=max(AY(1),Ylim(2));
1068            end
1069        elseif test_ima %only image plot
1070            Xlim(1)=min(AX(1),AX(end));
1071            Xlim(2)=max(AX(1),AX(end));
1072            Ylim(1)=min(AY(1),AY(end));
1073            Ylim(2)=max(AY(1),AY(end));
1074            test_lim=1;
1075        end
1076        if test_lim
1077            if Xlim(2)>Xlim(1)
1078                set(haxes,'XLim',Xlim);% set x limits of frame in axes coordinates
1079            end
1080            if Ylim(2)>Ylim(1)
1081                set(haxes,'YLim',Ylim);% set y limits of frame in axes coordinate
1082            end
1083        end
1084end
1085if ~(isfield(PlotParam,'Auto_xy') && isequal(PlotParam.Auto_xy,1))
1086     set(haxes,'DataAspectRatio',[1 1 1])
1087end
1088set(haxes,'YDir','normal')
1089set(get(haxes,'XLabel'),'String',[XName x_units]);
1090set(get(haxes,'YLabel'),'String',[YName y_units]);
1091
1092%-------------------------------------------------------------------
1093% --- function for plotting vectors
1094%INPUT:
1095% haxes: handles of the plotting axes
1096%x,y,u,v: vectors coordinates and vector components to plot, arrays withb the same dimension
1097% scale: scaling factor for vector length representation
1098%colorlist(icolor,:): list of vector colors, dim (nbcolor,3), depending on color #i
1099%col_vec: matlab vector setting the color number #i for each velocity vector
1100function quiresetn(haxes,x,y,u,v,scale,colorlist,col_vec)
1101%-------------------------------------------------------------------
1102%define arrows
1103theta=0.5 ;%angle arrow
1104alpha=0.3 ;%length arrow
1105rot=alpha*[cos(theta) -sin(theta); sin(theta) cos(theta)]';
1106%find the existing lines
1107%h=findobj(gca,'Type','Line');% search existing lines in the current axes
1108h=findobj(haxes,'Tag','vel');% search existing lines in the current axes
1109sizh=size(h);
1110set(h,'EraseMode','xor');
1111set(haxes,'NextPlot','replacechildren');
1112%htext=findobj('Tag','scalevec');
1113     
1114%drawnow
1115%create lines (if no lines) or modify them
1116if ~isequal(size(col_vec),size(x))
1117    col_vec=ones(size(x));% case of error in col_vec input
1118end
1119sizlist=size(colorlist);
1120ncolor=sizlist(1);
1121
1122for icolor=1:ncolor
1123    %determine the line positions for each color icolor
1124    ind=find(col_vec==icolor);
1125    xc=x(ind);
1126    yc=y(ind);
1127    uc=u(ind)*scale;
1128    vc=v(ind)*scale;
1129    n=size(xc);
1130    xN=NaN*ones(size(xc));
1131    matx=[xc(:) xc(:)+uc(:) xN(:)]';
1132    matx=reshape(matx,1,3*n(2));
1133    maty=[yc(:) yc(:)+vc(:) xN(:)]';
1134    maty=reshape(maty,1,3*n(2));
1135   
1136    %determine arrow heads
1137    arrowplus=rot*[uc;vc];
1138    arrowmoins=rot'*[uc;vc];
1139    x1=xc+uc-arrowplus(1,:);
1140    x2=xc+uc;
1141    x3=xc+uc-arrowmoins(1,:);
1142    y1=yc+vc-arrowplus(2,:);
1143    y2=yc+vc;
1144    y3=yc+vc-arrowmoins(2,:);
1145    matxar=[x1(:) x2(:) x3(:) xN(:)]';
1146    matxar=reshape(matxar,1,4*n(2));
1147    matyar=[y1(:) y2(:) y3(:) xN(:)]';
1148    matyar=reshape(matyar,1,4*n(2));
1149    %draw the line or modify the existing ones
1150    isn=isnan(colorlist(icolor,:));%test if color NaN
1151    if 2*icolor > sizh(1) %if icolor exceeds the number of existing ones
1152        axes(haxes)
1153        if ~isn(1) %if the vectors are visible color not nan
1154            if n(2)>0
1155                hold on
1156                line(matx,maty,'Color',colorlist(icolor,:),'Tag','vel');% plot new lines
1157                line(matxar,matyar,'Color',colorlist(icolor,:),'Tag','vel');% plot arrows
1158            end
1159        end
1160    else
1161        if isn(1)
1162            delete(h(2*icolor-1))
1163            delete(h(2*icolor))
1164        else
1165            set(h(2*icolor-1),'Xdata',matx,'Ydata',maty);
1166            set(h(2*icolor-1),'Color',colorlist(icolor,:));
1167            set(h(2*icolor-1),'EraseMode','xor');
1168            set(h(2*icolor),'Xdata',matxar,'Ydata',matyar);
1169            set(h(2*icolor),'Color',colorlist(icolor,:));
1170            set(h(2*icolor),'EraseMode','xor');
1171        end
1172     end
1173end
1174if sizh(1) > 2*ncolor
1175    for icolor=ncolor+1 : sizh(1)/2%delete additional objects
1176        delete(h(2*icolor-1))
1177        delete(h(2*icolor))
1178    end
1179end
1180
1181%-------------------------------------------------------------------
1182% ---- determine tick positions for colorbar
1183function YTick=colbartick(MinA,MaxA)
1184%-------------------------------------------------------------------
1185%determine tick positions with "simple" values between MinA and MaxA
1186YTick=0;%default
1187maxabs=max([abs(MinA) abs(MaxA)]);
1188if maxabs>0
1189ord=10^(floor(log10(maxabs)));%order of magnitude
1190div=1;
1191siz2=1;
1192while siz2<2
1193%     values=[-9:div:9];
1194    values=-10:div:10;
1195    ind=find((ord*values-MaxA)<0 & (ord*values-MinA)>0);%indices of 'values' such that MinA<ord*values<MaxA
1196    siz=size(ind);
1197    if siz(2)<4%if there are less than 4 selected values (4 levels)
1198        values=[-9:0.5*div:9];
1199        ind=find((ord*values-MaxA)<0 & (ord*values-MinA)>0);
1200    end
1201    siz2=size(ind,2);
1202%     siz2=siz(2)
1203    div=div/10;
1204end
1205YTick=ord*values(ind);
1206end
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