[179]  1  %'sub_field': combines two input fields


 2  %


 3  % the two fields are subtstracted when of the same nature (scalar or


 4  % vector), if the coordinates do not coincide, the second field is


 5  % interpolated on the cooridintes of the first one


 6  %


 7  % when scalar and vectors are combined, the fields are just merged in a single matlab structure for common visualisation


[8]  8  %


[515]  9  % function SubData=sub_field(Field,XmlData,Field_1)


[8]  10  %


[811]  11  % OUTPUT:


[8]  12  % SubData: structure representing the resulting field


 13  %


 14  % INPUT:


[179]  15  % Field: matlab structure representing the first field


 16  % Field_1:matlab structure representing the second field


[8]  17 


[809]  18  %=======================================================================


 19  % Copyright 20082014, LEGI UMR 5519 / CNRS UJF GINP, Grenoble, France


 20  % http://www.legi.grenobleinp.fr


 21  % Joel.Sommeria  Joel.Sommeria (A) legi.cnrs.fr


 22  %


 23  % This file is part of the toolbox UVMAT.


 24  %


 25  % UVMAT is free software; you can redistribute it and/or modify


 26  % it under the terms of the GNU General Public License as published


 27  % by the Free Software Foundation; either version 2 of the license,


 28  % or (at your option) any later version.


 29  %


 30  % UVMAT is distributed in the hope that it will be useful,


 31  % but WITHOUT ANY WARRANTY; without even the implied warranty of


 32  % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the


 33  % GNU General Public License (see LICENSE.txt) for more details.


 34  %=======================================================================


 35 


[515]  36  function SubData=sub_field(Field,XmlData,Field_1)


[405]  37 


[515]  38  SubData=[];


 39  if strcmp(Field,'*')


 40  return


 41  end


 42  if nargin<3


 43  SubData=Field;


 44  return


 45  end


[876]  46  if ~isfield(Field_1,'VarAttribute')


 47  Field_1.VarAttribute={};


 48  end


[674]  49 


[405]  50  %% global attributes


[515]  51  SubData.ListGlobalAttribute={};%default


 52  %transfer global attributes of Field


[8]  53  if isfield(Field,'ListGlobalAttribute')


 54  SubData.ListGlobalAttribute=Field.ListGlobalAttribute;


 55  for ilist=1:numel(Field.ListGlobalAttribute)


 56  AttrName=Field.ListGlobalAttribute{ilist};


[405]  57  SubData.(AttrName)=Field.(AttrName);


[8]  58  end


 59  end


[515]  60  %transfer global attributes of Field_1


[8]  61  if isfield(Field_1,'ListGlobalAttribute')


 62  for ilist=1:numel(Field_1.ListGlobalAttribute)


 63  AttrName=Field_1.ListGlobalAttribute{ilist};


[515]  64  AttrNameNew=AttrName;


 65  while ~isempty(find(strcmp(AttrNameNew,SubData.ListGlobalAttribute)))&&~isequal(Field_1.(AttrNameNew),Field.(AttrNameNew))


 66  AttrNameNew=[AttrNameNew '_1'];


[8]  67  end


[515]  68  if ~isfield(Field,AttrName)  ~isequal(Field_1.(AttrName),Field.(AttrName))


[548]  69  SubData.ListGlobalAttribute=[SubData.ListGlobalAttribute {AttrNameNew}];


 70  SubData.(AttrNameNew)=Field_1.(AttrName);


[8]  71  end


 72  end


 73  end


[405]  74 


 75  %% variables


[515]  76  %reproduce variables of the first field and list its dimensions


[8]  77  SubData.ListVarName=Field.ListVarName;


 78  SubData.VarDimName=Field.VarDimName;


 79  if isfield(Field,'VarAttribute')


 80  SubData.VarAttribute=Field.VarAttribute;


 81  end


[515]  82  ListDimName={};


 83  for ilist=1:numel(Field.ListVarName)


 84  VarName=Field.ListVarName{ilist};


 85  SubData.(VarName)=Field.(VarName);


 86  SubData.VarAttribute{ilist}.CheckSub=0;


 87  DimCell=Field.VarDimName{ilist};


 88  if ischar(DimCell)


 89  DimCell={DimCell};


 90  end


 91  for idim=1:numel(DimCell)


 92  if isempty(find(strcmp(DimCell{idim},ListDimName)))


 93  ListDimName=[ListDimName DimCell(idim)];


 94  end


 95  end


[8]  96  end


 97 


[515]  98  %% field request


[581]  99  ProjModeRequest=cell(size(Field.ListVarName));


[515]  100  for ilist=1:numel(Field.VarAttribute)


[581]  101  if isfield(Field.VarAttribute{ilist},'ProjModeRequest')


 102  ProjModeRequest{ilist}=Field.VarAttribute{ilist}.ProjModeRequest;


[402]  103  end


 104  end


[581]  105  ProjModeRequest_1=cell(size(Field_1.ListVarName));


[515]  106  for ilist=1:numel(Field_1.VarAttribute)


[581]  107  if isfield(Field_1.VarAttribute{ilist},'ProjModeRequest')


 108  ProjModeRequest_1{ilist}=Field_1.VarAttribute{ilist}.ProjModeRequest;


[402]  109  end


 110  end


[8]  111 


[876]  112 


[515]  113  %% rename the dimensions of the second field if identical to those of the first


 114  for ilist=1:numel(Field_1.VarDimName)


 115  DimCell=Field_1.VarDimName{ilist};


 116  if ischar(DimCell)


 117  DimCell={DimCell};


 118  end


 119  for idim=1:numel(DimCell)


 120  ind_dim=find(strcmp(DimCell{idim},ListDimName));


 121  if ~isempty(ind_dim)


 122  if ischar(Field_1.VarDimName{ilist})


 123  Field_1.VarDimName{ilist}=Field_1.VarDimName(ilist);


 124  end


 125  Field_1.VarDimName{ilist}{idim}=[ListDimName{ind_dim} '_1'];


 126  end


 127  end


[8]  128  end


 129 


[580]  130  %% look for coordinates common to Field in Field_1


[866]  131  ind_remove=false(size(Field_1.ListVarName));


[674]  132  % loop on the variables of the second field Field_1


[876]  133  for ilist=1:numel(Field_1.VarAttribute)


[674]  134  % case of variable with a single dimension


[866]  135  if ~isempty(Field_1.VarAttribute{ilist}) && ~isempty(regexp(Field_1.VarAttribute{ilist}.Role,'^coord'))% if variable with Role coord... is found.


[864]  136  OldDimName=Field_1.VarDimName{ilist};


 137  if ischar(OldDimName), OldDimName={OldDimName}; end% transform char string to cell if relevant


 138  if numel(OldDimName)==1


 139  OldDim=Field_1.(Field_1.ListVarName{ilist});% get variable


 140  %look for the existence of the variable OldDim in the first field Field


 141  for i1=1:numel(Field.ListVarName)


 142  if isequal(Field.(Field.ListVarName{i1}),OldDim) &&...


 143  ((isempty(ProjModeRequest{i1}) && isempty(ProjModeRequest_1{ilist}))  strcmp(ProjModeRequest{i1},ProjModeRequest_1{ilist}))


 144  ind_remove(ilist)=1;


 145  NewDimName=Field.VarDimName{i1};


 146  if ischar(NewDimName), NewDimName={NewDimName}; end %transform char chain to cell if needed


 147  Field_1.VarDimName=regexprep_r(Field_1.VarDimName,['^' OldDimName{1} '$'],NewDimName{1});% change the var name of Field_1 to the corresponding var name of Field


 148  end


[180]  149  end


 150  end


[8]  151  end


 152  end


[866]  153  if ~isempty(find(ind_remove, 1))


 154  Field_1.ListVarName(ind_remove)=[];%removes the redondent coordinate


 155  Field_1.VarDimName(ind_remove)=[];


 156  Field_1.VarAttribute(ind_remove)=[];


 157  end


[8]  158 


[580]  159  %% append the other variables of the second field, modifying their name if needed


[866]  160  ListVarNameSub=Field_1.ListVarName;


 161  ListVarNameNew=ListVarNameSub;


 162  check_rename=zeros(size(ListVarNameSub));


 163  check_remove=zeros(size(ListVarNameSub));


 164  for ilist=1:numel(ListVarNameSub)


 165  ind_prev=find(strcmp(ListVarNameSub{ilist},Field.ListVarName),1);% look for duplicated variable name


[862]  166  if ~isempty(ind_prev)% variable name exists in Field


[866]  167  if isfield(Field_1.VarAttribute{ilist},'Role')&&...


 168  ismember(Field_1.VarAttribute{ilist}.Role,{'coord_x','coord_y','scalar','vector_x','vector_y','errorflag'})


 169  ListVarNameNew{ilist}=[ListVarNameSub{ilist} '_1'];%modify the name of the second variable


 170  check_rename(ilist)=1;


 171  else


 172  check_remove(ilist)=1;% variable will be removed


[864]  173  end


[8]  174  end


[515]  175  end


[866]  176  ListVarNameSub=ListVarNameSub(~check_remove); %eliminate removed variables from the list of the second field


 177  ListVarNameNew=ListVarNameNew(~check_remove); % %list of renaimed varaibles corresponding to ListVarNameSub


 178  VarDimNameSub=Field_1.VarDimName(~check_remove);


[876]  179  if numel(Field_1.VarAttribute)<max(find(~check_remove))


 180  for ilist=numel(Field_1.VarAttribute)+1:max(find(~check_remove))


 181  Field_1.VarAttribute{ilist}={};


 182  end


 183  end


[866]  184  VarAttributeSub=Field_1.VarAttribute(~check_remove);


 185  check_rename=check_rename(~check_remove);


[515]  186 


[866]  187  % apply the variable renaming and mark the second field variables with the attribute .CheckSub


 188  for ilist=1:numel(ListVarNameSub)


 189  SubData.(ListVarNameNew{ilist})=Field_1.(ListVarNameSub{ilist});% copy the variable content to the new name


 190  if check_rename(ilist)


 191  % replace name in field expression FieldName, e.g. 'norm(U,V)'> 'norm(U_1,V_1)'


 192  if isfield(VarAttributeSub{ilist},'FieldName')


 193  for ivar=1:numel(find(check_rename))


 194  VarAttributeSub{ilist}.FieldName=regexprep_r(VarAttributeSub{ilist}.FieldName,...


 195  ListVarNameSub{ivar},ListVarNameNew{ivar});


 196  end


[862]  197  end


 198  end


[866]  199  VarAttributeSub{ilist}.CheckSub=1;% mark that the field needs to be substracted as an attribute


[862]  200  end


 201 


[866]  202  SubData.ListVarName=[SubData.ListVarName ListVarNameNew];


 203  SubData.VarDimName=[SubData.VarDimName VarDimNameSub];


 204  SubData.VarAttribute=[SubData.VarAttribute VarAttributeSub];


 205 


[515]  206  %% substrat fields when possible


[580]  207  [CellInfo,NbDim,errormsg]=find_field_cells(SubData);


[866]  208  ind_remove=false(size(SubData.ListVarName));


[515]  209  ivar=[];


 210  ivar_1=[];


[548]  211  for icell=1:numel(CellInfo)


 212  if ~isempty(CellInfo{icell})


[866]  213  % if two scalar are in the same cell


[548]  214  if isfield(CellInfo{icell},'VarIndex_scalar') && numel(CellInfo{icell}.VarIndex_scalar)==2 && SubData.VarAttribute{CellInfo{icell}.VarIndex_scalar(2)}.CheckSub;


 215  ivar=[ivar CellInfo{icell}.VarIndex_scalar(1)];


 216  ivar_1=[ivar_1 CellInfo{icell}.VarIndex_scalar(2)];


[8]  217  end


[866]  218  % if two vector u components are in the same cell


[548]  219  if isfield(CellInfo{icell},'VarIndex_vector_x') && numel(CellInfo{icell}.VarIndex_vector_x)==2 && SubData.VarAttribute{CellInfo{icell}.VarIndex_vector_x(2)}.CheckSub;


 220  ivar=[ivar CellInfo{icell}.VarIndex_vector_x(1)];


 221  ivar_1=[ivar_1 CellInfo{icell}.VarIndex_vector_x(2)];


[515]  222  end


[866]  223  % if two vector v components are in the same cell


[548]  224  if isfield(CellInfo{icell},'VarIndex_vector_y') && numel(CellInfo{icell}.VarIndex_vector_y)==2 && SubData.VarAttribute{CellInfo{icell}.VarIndex_vector_y(2)}.CheckSub;


 225  ivar=[ivar CellInfo{icell}.VarIndex_vector_y(1)];


 226  ivar_1=[ivar_1 CellInfo{icell}.VarIndex_vector_y(2)];


[515]  227  end


[866]  228  % merge the error flags if needed


 229  if isfield(CellInfo{icell},'VarIndex_errorflag') && numel(CellInfo{icell}.VarIndex_errorflag)==2 && SubData.VarAttribute{CellInfo{icell}.VarIndex_vector_y(2)}.CheckSub;


 230  ivar_flag=CellInfo{icell}.VarIndex_errorflag(1);


 231  ivar_flag_1=CellInfo{icell}.VarIndex_errorflag(2);


 232  VarName=SubData.ListVarName{ivar_flag};


 233  VarName_1=SubData.ListVarName{ivar_flag_1};


 234  SubData.(VarName)=SubData.(VarName)~=0  SubData.(VarName_1)~=0;% combine the error flags of the two fields


 235  ind_remove(ivar_flag_1)=1;


 236  end


[8]  237  end


 238  end


[866]  239  % subtract fields if relevant


[515]  240  for imod=1:numel(ivar)


 241  VarName=SubData.ListVarName{ivar(imod)};


 242  VarName_1=SubData.ListVarName{ivar_1(imod)};


[548]  243  SubData.(VarName)=double(SubData.(VarName))double(SubData.(VarName_1));


[515]  244  ind_remove(ivar_1(imod))=1;


 245  end


[866]  246  SubData.ListVarName(ind_remove)=[];


 247  SubData.VarDimName(ind_remove)=[];


 248  SubData.VarAttribute(ind_remove)=[];


[520]  249 


[580]  250  function OutputCell=regexprep_r(InputCell,search_string,new_string)


[713]  251  if ischar(InputCell); InputCell={InputCell}; end


[674]  252  OutputCell=InputCell;%default


[520]  253  for icell=1:numel(InputCell)


[580]  254  OutputCell{icell}=regexprep(InputCell{icell},search_string,new_string);


[520]  255  end


[515]  256 


 257 

