1 | %'find_file_indices': test field structure for input in proj_field and plot_field |
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2 | %group the variables into 'fields' with common dimensions |
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3 | %---------------------------------------------------------------------- |
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4 | % function [DimVarIndex,CellVarIndex,NbDim,VarType]=find_field_indices(Data) |
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5 | % |
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6 | %OUTPUT: |
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7 | % CellVaxIndex: cell whose elements are arrays of indices in the list data.ListVarName |
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8 | % CellvarIndex{i} represents a set of variables with the same dimensions |
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9 | % NbDim: array with the length of CellVarIndex, giving its space dimension |
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10 | % VarType: cell array of structures with fields |
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11 | % .coord_x, y, z: indices (in .ListVarname) of variables representing unstructured coordinates x, y, z |
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12 | % .vector_x,_y,_z: indices of variables giving the vector components x, y, z |
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13 | % .warnflag: index of warnflag |
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14 | % .errorflag: index of error flag |
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15 | % .ancillary: indices of ancillary variables |
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16 | % .image : B/W image, (behaves like scalar) |
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17 | % .color : color image, the last index, which is not a coordinate variable, represent the 3 color components rgb |
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18 | % .discrete: like scalar, but set of data points without continuity, represented as dots in a usual plot, instead of continuous lines otherwise |
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19 | % .scalar: scalar field (default) |
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20 | |
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21 | % |
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22 | %INPUT: |
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23 | % Data: structure representing fields, output of check_field_structure |
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24 | % .ListDimName: cell listing the names of the array dimensions |
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25 | % .ListVarName: cell listing the names of the variables |
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26 | % .VarDimIndex: cell containing the set of dimension indices (in list .ListDimName) for each variable of .ListVarName |
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27 | % |
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28 | % HELP: |
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29 | % to get the dimensions of arrays common to the field #icell |
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30 | % VarIndex=CellVarIndex{icell}; % list of variable indices |
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31 | % DimIndex=Data.VarDimIndex{VarIndex(1)} % list of dimensions for each variable in the cell #icell |
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32 | % |
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33 | %AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA |
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34 | % Copyright Joel Sommeria, 2008, LEGI / CNRS-UJF-INPG, sommeria@coriolis-legi.org. |
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35 | %AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA |
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36 | % This file is part of the toolbox UVMAT. |
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37 | % |
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38 | % UVMAT is free software; you can redistribute it and/or modify |
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39 | % it under the terms of the GNU General Public License as published by |
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40 | % the Free Software Foundation; either version 2 of the License, or |
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41 | % (at your option) any later version. |
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42 | % |
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43 | % UVMAT is distributed in the hope that it will be useful, |
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44 | % but WITHOUT ANY WARRANTY; without even the implied warranty of |
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45 | % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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46 | % GNU General Public License (file UVMAT/COPYING.txt) for more details. |
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47 | %AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA |
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48 | |
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49 | function [CellVarIndex,NbDim,VarType,errormsg]=find_field_indices(Data) |
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50 | CellVarIndex={}; |
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51 | NbDim=[]; |
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52 | VarType=[]; |
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53 | errormsg=[]; |
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54 | nbvar=numel(Data.ListVarName);%number of field variables |
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55 | icell=0; |
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56 | ivardim=0; |
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57 | VarDimIndex=[]; |
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58 | VarDimName={}; |
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59 | |
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60 | if ~isfield(Data,'VarDimName') |
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61 | errormsg='missing .VarDimName'; |
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62 | return |
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63 | end |
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64 | |
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65 | %loop on the list of variables |
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66 | for ivar=1:nbvar |
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67 | DimCell=Data.VarDimName{ivar}; %dimensions associated with the variable #ivar |
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68 | if ischar(DimCell) |
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69 | DimCell={DimCell}; |
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70 | Data.VarDimName{ivar}={Data.VarDimName{ivar}};%transform char chain into cell |
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71 | end |
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72 | testnewcell=1; |
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73 | for icell_prev=1:numel(CellVarIndex)%detect whether the dimensions of ivar fit with an existing cell |
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74 | PrevVarIndex=CellVarIndex{icell_prev}; |
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75 | PrevDimName=Data.VarDimName{PrevVarIndex(1)}; |
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76 | if isequal(PrevDimName,DimCell) |
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77 | CellVarIndex{icell_prev}=[CellVarIndex{icell_prev} ivar];% add variable index #ivar to the cell #icell_prev |
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78 | testnewcell=0; %existing cell detected |
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79 | break |
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80 | end |
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81 | end |
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82 | if testnewcell |
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83 | icell=icell+1; |
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84 | CellVarIndex{icell}=ivar;%put the current variabl index in the new cell |
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85 | end |
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86 | |
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87 | %look for dimension variables |
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88 | if numel(DimCell)==1% if the variable has a single dimension |
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89 | Role=''; |
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90 | if isfield(Data,'VarAttribute') && length(Data.VarAttribute)>=ivar && isfield(Data.VarAttribute{ivar},'Role') |
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91 | Role=Data.VarAttribute{ivar}.Role; |
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92 | end |
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93 | if strcmp(DimCell{1},Data.ListVarName{ivar}) || strcmp(Role,'dimvar') |
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94 | ivardim=ivardim+1; |
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95 | VarDimIndex(ivardim)=ivar;%index of the variable |
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96 | VarDimName{ivardim}=DimCell{1};%name of the dimension |
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97 | end |
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98 | end |
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99 | end |
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100 | |
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101 | % find the spatial dimensions and vector components |
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102 | ListRole={'coord_x','coord_y','coord_z','vector_x','vector_y','vector_z','warnflag','errorflag',... |
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103 | 'ancillary','image','color','discrete','scalar'}; |
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104 | for icell=1:length(CellVarIndex) |
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105 | for ilist=1:numel(ListRole) |
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106 | eval(['ivar_' ListRole{ilist} '=[];']) |
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107 | end |
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108 | VarIndex=CellVarIndex{icell};%set of variable indices with the same dim |
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109 | DimCell=Data.VarDimName{VarIndex(1)};% list of dimensions for each variable in the cell #icell |
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110 | if isfield(Data,'VarAttribute'); |
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111 | VarAttribute=Data.VarAttribute; |
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112 | else |
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113 | VarAttribute={}; |
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114 | end |
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115 | test_2D=0; |
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116 | for ivar=VarIndex |
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117 | if length(VarAttribute)>=ivar |
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118 | if isfield(VarAttribute{ivar},'Role') |
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119 | role=VarAttribute{ivar}.Role; |
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120 | switch role |
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121 | case ListRole |
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122 | eval(['ivar_' role '=[ivar_' role ' ivar];']) |
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123 | otherwise |
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124 | ivar_scalar=[ivar_scalar ivar];%variables are consiered as 'scalar' by default (in the absence of attribute 'Role') |
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125 | end |
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126 | else |
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127 | ivar_scalar=[ivar_scalar ivar];% variable considered as scalar in the absence of Role attribute |
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128 | end |
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129 | if isfield(VarAttribute{ivar},'Coord_2') |
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130 | test_2D=1; %obsolete convention |
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131 | end |
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132 | else |
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133 | ivar_scalar=[ivar_scalar ivar];%variables are consiered as 'scalar' by default (in the absence of attribute 'Role') |
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134 | end |
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135 | end |
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136 | for ilist=1:numel(ListRole) |
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137 | eval(['VarType{icell}.' ListRole{ilist} '=ivar_' ListRole{ilist} ';']) |
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138 | end |
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139 | if numel(ivar_coord_x)>1 || numel(ivar_coord_y)>1 || numel(ivar_coord_z)>1 |
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140 | errormsg='multiply defined coordinates in the same cell'; |
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141 | return |
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142 | end |
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143 | if numel(ivar_vector_x)>1 || numel(ivar_vector_y)>1 || numel(ivar_vector_z)>1 |
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144 | errormsg='multiply defined vector components in the same cell'; |
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145 | return |
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146 | end |
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147 | if numel(ivar_errorflag)>1 |
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148 | errormsg='multiply defined error flag in the same cell'; |
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149 | return |
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150 | end |
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151 | if numel(ivar_warnflag)>1 |
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152 | errormsg='multiply defined warning flag in the same cell'; |
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153 | return |
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154 | end |
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155 | NbDim(icell)=0;% nbre of space dimensions |
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156 | if ~isempty(ivar_coord_z) |
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157 | NbDim(icell)=3; |
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158 | elseif ~isempty(ivar_coord_y) |
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159 | NbDim(icell)=2; |
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160 | elseif ~isempty(ivar_coord_x) |
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161 | NbDim(icell)=1; |
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162 | end |
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163 | |
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164 | % look at coordinates variables |
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165 | coord=zeros(1,numel(DimCell));%default |
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166 | if NbDim(icell)==0 && ~isempty(VarDimName)% no unstructured coordinate found |
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167 | for idim=1:numel(DimCell) %loop on the dimensions of the variables in cell #icell |
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168 | for ivardim=1:numel(VarDimName) |
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169 | if strcmp(VarDimName{ivardim},DimCell{idim}) |
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170 | coord(idim)=VarDimIndex(ivardim); |
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171 | break |
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172 | end |
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173 | end |
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174 | end |
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175 | NbDim(icell)=numel(find(coord)); |
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176 | end |
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177 | VarType{icell}.coord=coord; |
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178 | if NbDim(icell)==0 && test_2D %look at attributes Coord_1, coord_2 (obsolete convention) |
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179 | NbDim(icell)=2; |
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180 | end |
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181 | end |
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