[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


[674]  46 


[405]  47  %% global attributes


[515]  48  SubData.ListGlobalAttribute={};%default


 49  %transfer global attributes of Field


[8]  50  if isfield(Field,'ListGlobalAttribute')


 51  SubData.ListGlobalAttribute=Field.ListGlobalAttribute;


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


 53  AttrName=Field.ListGlobalAttribute{ilist};


[405]  54  SubData.(AttrName)=Field.(AttrName);


[8]  55  end


 56  end


[515]  57  %transfer global attributes of Field_1


[8]  58  if isfield(Field_1,'ListGlobalAttribute')


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


 60  AttrName=Field_1.ListGlobalAttribute{ilist};


[515]  61  AttrNameNew=AttrName;


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


 63  AttrNameNew=[AttrNameNew '_1'];


[8]  64  end


[515]  65  if ~isfield(Field,AttrName)  ~isequal(Field_1.(AttrName),Field.(AttrName))


[548]  66  SubData.ListGlobalAttribute=[SubData.ListGlobalAttribute {AttrNameNew}];


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


[8]  68  end


 69  end


 70  end


[405]  71 


 72  %% variables


[515]  73  %reproduce variables of the first field and list its dimensions


[8]  74  SubData.ListVarName=Field.ListVarName;


 75  SubData.VarDimName=Field.VarDimName;


 76  if isfield(Field,'VarAttribute')


 77  SubData.VarAttribute=Field.VarAttribute;


 78  end


[515]  79  ListDimName={};


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


 81  VarName=Field.ListVarName{ilist};


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


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


 84  DimCell=Field.VarDimName{ilist};


 85  if ischar(DimCell)


 86  DimCell={DimCell};


 87  end


 88  for idim=1:numel(DimCell)


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


 90  ListDimName=[ListDimName DimCell(idim)];


 91  end


 92  end


[8]  93  end


 94 


[515]  95  %% field request


[581]  96  ProjModeRequest=cell(size(Field.ListVarName));


[515]  97  for ilist=1:numel(Field.VarAttribute)


[581]  98  if isfield(Field.VarAttribute{ilist},'ProjModeRequest')


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


[402]  100  end


 101  end


[581]  102  ProjModeRequest_1=cell(size(Field_1.ListVarName));


[515]  103  for ilist=1:numel(Field_1.VarAttribute)


[581]  104  if isfield(Field_1.VarAttribute{ilist},'ProjModeRequest')


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


[402]  106  end


 107  end


[8]  108 


[515]  109  %% rename the dimensions of the second field if identical to those of the first


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


 111  DimCell=Field_1.VarDimName{ilist};


 112  if ischar(DimCell)


 113  DimCell={DimCell};


 114  end


 115  for idim=1:numel(DimCell)


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


 117  if ~isempty(ind_dim)


 118  if ischar(Field_1.VarDimName{ilist})


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


 120  end


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


 122  end


 123  end


[8]  124  end


 125 


[580]  126  %% look for coordinates common to Field in Field_1


[866]  127  ind_remove=false(size(Field_1.ListVarName));


[674]  128  % loop on the variables of the second field Field_1


[515]  129  for ilist=1:numel(Field_1.ListVarName)


[674]  130  % case of variable with a single dimension


[866]  131  if ~isempty(Field_1.VarAttribute{ilist}) && ~isempty(regexp(Field_1.VarAttribute{ilist}.Role,'^coord'))% if variable with Role coord... is found.


[864]  132  OldDimName=Field_1.VarDimName{ilist};


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


 134  if numel(OldDimName)==1


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


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


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


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


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


 140  ind_remove(ilist)=1;


 141  NewDimName=Field.VarDimName{i1};


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


 143  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


 144  end


[180]  145  end


 146  end


[8]  147  end


 148  end


[866]  149  if ~isempty(find(ind_remove, 1))


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


 151  Field_1.VarDimName(ind_remove)=[];


 152  Field_1.VarAttribute(ind_remove)=[];


 153  end


[8]  154 


[580]  155  %% append the other variables of the second field, modifying their name if needed


[866]  156  ListVarNameSub=Field_1.ListVarName;


 157  ListVarNameNew=ListVarNameSub;


 158  check_rename=zeros(size(ListVarNameSub));


 159  check_remove=zeros(size(ListVarNameSub));


 160  for ilist=1:numel(ListVarNameSub)


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


[862]  162  if ~isempty(ind_prev)% variable name exists in Field


[866]  163  if isfield(Field_1.VarAttribute{ilist},'Role')&&...


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


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


 166  check_rename(ilist)=1;


 167  else


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


[864]  169  end


[8]  170  end


[515]  171  end


[866]  172  ListVarNameSub=ListVarNameSub(~check_remove); %eliminate removed variables from the list of the second field


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


 174  VarDimNameSub=Field_1.VarDimName(~check_remove);


 175  VarAttributeSub=Field_1.VarAttribute(~check_remove);


 176  check_rename=check_rename(~check_remove);


[515]  177 


[866]  178  % apply the variable renaming and mark the second field variables with the attribute .CheckSub


 179  for ilist=1:numel(ListVarNameSub)


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


 181  if check_rename(ilist)


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


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


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


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


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


 187  end


[862]  188  end


 189  end


[866]  190  VarAttributeSub{ilist}.CheckSub=1;% mark that the field needs to be substracted as an attribute


[862]  191  end


 192 


[866]  193  SubData.ListVarName=[SubData.ListVarName ListVarNameNew];


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


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


 196 


[515]  197  %% substrat fields when possible


[580]  198  [CellInfo,NbDim,errormsg]=find_field_cells(SubData);


[866]  199  ind_remove=false(size(SubData.ListVarName));


[515]  200  ivar=[];


 201  ivar_1=[];


[548]  202  for icell=1:numel(CellInfo)


 203  if ~isempty(CellInfo{icell})


[866]  204  % if two scalar are in the same cell


[548]  205  if isfield(CellInfo{icell},'VarIndex_scalar') && numel(CellInfo{icell}.VarIndex_scalar)==2 && SubData.VarAttribute{CellInfo{icell}.VarIndex_scalar(2)}.CheckSub;


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


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


[8]  208  end


[866]  209  % if two vector u components are in the same cell


[548]  210  if isfield(CellInfo{icell},'VarIndex_vector_x') && numel(CellInfo{icell}.VarIndex_vector_x)==2 && SubData.VarAttribute{CellInfo{icell}.VarIndex_vector_x(2)}.CheckSub;


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


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


[515]  213  end


[866]  214  % if two vector v components are in the same cell


[548]  215  if isfield(CellInfo{icell},'VarIndex_vector_y') && numel(CellInfo{icell}.VarIndex_vector_y)==2 && SubData.VarAttribute{CellInfo{icell}.VarIndex_vector_y(2)}.CheckSub;


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


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


[515]  218  end


[866]  219  % merge the error flags if needed


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


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


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


 223  VarName=SubData.ListVarName{ivar_flag};


 224  VarName_1=SubData.ListVarName{ivar_flag_1};


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


 226  ind_remove(ivar_flag_1)=1;


 227  end


[8]  228  end


 229  end


[866]  230  % subtract fields if relevant


[515]  231  for imod=1:numel(ivar)


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


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


[548]  234  SubData.(VarName)=double(SubData.(VarName))double(SubData.(VarName_1));


[515]  235  ind_remove(ivar_1(imod))=1;


 236  end


[866]  237  SubData.ListVarName(ind_remove)=[];


 238  SubData.VarDimName(ind_remove)=[];


 239  SubData.VarAttribute(ind_remove)=[];


[520]  240 


[580]  241  function OutputCell=regexprep_r(InputCell,search_string,new_string)


[713]  242  if ischar(InputCell); InputCell={InputCell}; end


[674]  243  OutputCell=InputCell;%default


[520]  244  for icell=1:numel(InputCell)


[580]  245  OutputCell{icell}=regexprep(InputCell{icell},search_string,new_string);


[520]  246  end


[515]  247 


 248 

