[575] | 1 | %'find_field_cells': test field structure for input in proj_field and plot_field |
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[514] | 2 | % group the variables into 'fields' with common dimensions |
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| 3 | %------------------------------------------------------------------------ |
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[530] | 4 | % function [CellInfo,NbDim,errormsg]=find_field_cells(Data) |
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[514] | 5 | % |
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| 6 | % OUTPUT: |
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[530] | 7 | % CellInfo: cell of structures describing field cells |
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| 8 | % .CoordType: type of coordinates for each field cell = 'scattered','grid','tps'; |
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| 9 | % .CoordIndex: array of the indices of the variables representing the coordinates (in the order z,y,x) |
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| 10 | % .CoordSize: array of the nbre of values for each coordinate in a grid, nbre of points in the unstructured case |
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| 11 | % .NbSite_tps: |
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| 12 | % .SubRange_tps |
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| 13 | % .VarIndex: arrays of the variable indices in the field cell |
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| 14 | % .VarIndex_ancillary: indices of ancillary variables |
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| 15 | % _color : color image, the last index, which is not a coordinate variable, represent the 3 color components rgb |
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| 16 | % _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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| 17 | % _errorflag: index of error flag |
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| 18 | % _image : B/W image, (behaves like scalar) |
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| 19 | % _vector_x,_y,_z: indices of variables giving the vector components x, y, z |
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| 20 | % _warnflag: index of warnflag |
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[516] | 21 | % .FieldRequest= 'interp_lin', 'interp_tps' indicate whether lin interpolation or derivatives (tps) is needed to calculate the requested field |
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[576] | 22 | % .FieldName = operation to be performed to finalise the field cell after projection |
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[530] | 23 | % .SubCheck=0 /1 indicate that the field must be substracted (second entry in uvmat) |
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| 24 | % NbDim: array with the length of CellVarIndex, giving the space dimension of each field cell |
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[514] | 25 | % errormsg: error message |
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| 26 | % |
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| 27 | % INPUT: |
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| 28 | % Data: structure representing fields, output of check_field_structure |
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[575] | 29 | % .ListGlobalAttributes |
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[514] | 30 | % .ListVarName: cell array listing the names (cahr strings) of the variables |
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| 31 | % .VarDimName: cell array of cells containing the set of dimension names for each variable of .ListVarName |
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| 32 | % .VarAttribute: cell array of structures containing the variable attributes: |
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| 33 | % .VarAttribute{ilist}.key=value, where ilist is the variable |
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| 34 | % index, key is the name of the attribute, value its value (char string or number) |
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[575] | 35 | % .Attr1, .Attr2.... |
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| 36 | % case of actual data: |
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| 37 | % .Var1, .Var2... |
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| 38 | % case of data structure, without the data themselves |
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| 39 | % .LisDimName: list of dimension names |
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| 40 | % .DimValue: list of corresponding dimension values |
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[514] | 41 | % HELP: |
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| 42 | % to get the dimensions of arrays common to the field #icell |
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| 43 | % VarIndex=CellVarIndex{icell}; % list of variable indices |
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| 44 | % DimIndex=Data.VarDimIndex{VarIndex(1)} % list of dimensions for each variable in the cell #icell |
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| 45 | % |
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| 46 | %AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA |
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| 47 | % Copyright Joel Sommeria, 2008, LEGI / CNRS-UJF-INPG, sommeria@coriolis-legi.org. |
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| 48 | %AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA |
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| 49 | % This file is part of the toolbox UVMAT. |
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| 50 | % |
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| 51 | % UVMAT is free software; you can redistribute it and/or modify |
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| 52 | % it under the terms of the GNU General Public License as published by |
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| 53 | % the Free Software Foundation; either version 2 of the License, or |
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| 54 | % (at your option) any later version. |
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| 55 | % |
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| 56 | % UVMAT is distributed in the hope that it will be useful, |
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| 57 | % but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 58 | % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 59 | % GNU General Public License (file UVMAT/COPYING.txt) for more details.for input in proj_field and plot_field |
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| 60 | % group the variables into 'fields' with common dimensions |
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| 61 | |
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[530] | 62 | function [CellInfo,NbDim,errormsg]=find_field_cells(Data) |
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[535] | 63 | |
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[530] | 64 | NbDim=0; |
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[535] | 65 | errormsg=''; |
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[530] | 66 | if ~isfield(Data,'ListVarName'), errormsg='the list of variables .ListVarName is missing';return;end |
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| 67 | if ~isfield(Data,'VarDimName'), errormsg='the list of dimensions .VarDimName is missing';return;end |
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[514] | 68 | nbvar=numel(Data.ListVarName);%number of field variables |
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[530] | 69 | if ~isequal(numel(Data.VarDimName),nbvar), errormsg='.ListVarName and .VarDimName have unequal length';return;end |
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[535] | 70 | % check the existence of variable data |
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| 71 | check_var=1; |
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| 72 | for ilist=1:numel(Data.ListVarName) |
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| 73 | if ~isfield(Data,Data.ListVarName{ilist}) |
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| 74 | check_var=0;% dimensions of data defined, data not needed for this function |
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| 75 | break |
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[530] | 76 | end |
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| 77 | end |
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[535] | 78 | if ~check_var && ~(isfield(Data,'ListDimName')&& isfield(Data,'DimValue')&&isequal(numel(Data.ListDimName),numel(Data.DimValue))) |
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| 79 | errormsg=['missing variable or values of dimensions' Data.ListVarName{ilist}]; |
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| 80 | return |
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| 81 | end |
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[514] | 82 | |
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| 83 | |
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[515] | 84 | %% role of variables and list of requested operations |
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[530] | 85 | %ListRole={'coord_x','coord_y','coord_z','vector_x','vector_y','vector_z','vector_x_tps','vector_y_tps','warnflag','errorflag',... |
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| 86 | % 'ancillary','image','color','discrete','scalar','coord_tps'};% rmq vector_x_tps and vector_y_tps to be replaced by vector_x and vector_y |
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[514] | 87 | Role=num2cell(blanks(nbvar));%initialize a cell array of nbvar blanks |
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[515] | 88 | FieldRequest=regexprep(Role,' ',''); % fieldRequest set to '' by default |
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[576] | 89 | FieldName=cell(size(Role)); % fieldRequest set to {} by default |
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[515] | 90 | CheckSub=zeros(size(Role));% =1 for fields to substract |
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[514] | 91 | Role=regexprep(Role,' ','scalar'); % Role set to 'scalar' by default |
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| 92 | if isfield(Data,'VarAttribute') |
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| 93 | for ivar=1:numel(Data.VarAttribute) |
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| 94 | if isfield(Data.VarAttribute{ivar},'Role') |
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| 95 | Role{ivar}=Data.VarAttribute{ivar}.Role; |
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| 96 | end |
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[515] | 97 | if isfield(Data.VarAttribute{ivar},'FieldRequest') |
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| 98 | FieldRequest{ivar}=Data.VarAttribute{ivar}.FieldRequest; |
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| 99 | end |
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[576] | 100 | if isfield(Data.VarAttribute{ivar},'FieldName') |
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| 101 | FieldName{ivar}=Data.VarAttribute{ivar}.FieldName; |
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[515] | 102 | end |
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| 103 | if isfield(Data.VarAttribute{ivar},'CheckSub') |
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| 104 | CheckSub(ivar)=Data.VarAttribute{ivar}.CheckSub; |
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| 105 | end |
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[514] | 106 | end |
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| 107 | end |
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| 108 | |
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[530] | 109 | %% find scattered (unstructured) coordinates |
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| 110 | ivar_coord_x=find(strcmp('coord_x',Role)); |
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| 111 | % VarDimCell=cell(numel(ivar_coord_x)); |
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[575] | 112 | check_select=false(1,nbvar); |
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| 113 | check_coord=false(1,nbvar); |
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[530] | 114 | CellInfo=cell(1,numel(ivar_coord_x)); |
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| 115 | NbDim=zeros(1,numel(ivar_coord_x)); |
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| 116 | for icell=1:numel(ivar_coord_x) |
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| 117 | DimCell=Data.VarDimName{ivar_coord_x(icell)}; |
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| 118 | if ischar(DimCell),DimCell={DimCell};end |
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| 119 | check_cell=zeros(numel(DimCell),nbvar); |
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| 120 | for idim=1:numel(DimCell) |
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| 121 | for ivar=1:nbvar |
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| 122 | check_cell(idim,ivar)=max(strcmp(DimCell{idim},Data.VarDimName{ivar})); |
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| 123 | end |
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[514] | 124 | end |
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[530] | 125 | check_cell=sum(check_cell,1)==numel(DimCell);%logical array=1 for variables belonging to the current cell |
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| 126 | VarIndex=find(check_cell); |
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| 127 | if ~(numel(VarIndex)==1 && numel(DimCell)==1)% exclude case of isolated coord_x variable (treated later) |
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| 128 | if ~(numel(VarIndex)==1 && numel(DimCell)>1)% a variable is associated to coordinate |
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| 129 | CellInfo{icell}.CoordIndex=ivar_coord_x(icell); |
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| 130 | % size of coordinate var |
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[535] | 131 | if check_var |
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| 132 | CellInfo{icell}.CoordSize=numel(Data.(Data.ListVarName{ivar_coord_x(icell)})); |
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| 133 | else |
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[530] | 134 | for idim=1:numel(DimCell) |
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| 135 | check_index= strcmp(DimCell{idim},Data.ListDimName); |
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| 136 | CellInfo{icell}.CoordSize(idim)=Data.DimValue(check_index); |
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| 137 | end |
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| 138 | CellInfo{icell}.CoordSize=prod(CellInfo{icell}.CoordSize); |
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| 139 | end |
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| 140 | ind_y=find(strcmp('coord_y',Role(VarIndex))); |
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| 141 | if numel(VarIndex)==2||isempty(ind_y)% no variable, except possibly y |
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| 142 | NbDim(icell)=1; |
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| 143 | else |
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| 144 | CellInfo{icell}.CoordType='scattered'; |
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| 145 | ind_z=find(strcmp('coord_z',Role(VarIndex))); |
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| 146 | if numel(VarIndex)==3||isempty(ind_z)% no z variable, except possibly as a fct z(x,y) |
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| 147 | CellInfo{icell}.CoordIndex=[VarIndex(ind_y) CellInfo{icell}.CoordIndex]; |
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| 148 | NbDim(icell)=2; |
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| 149 | else |
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| 150 | CellInfo{icell}.CoordIndex=[VarIndex(ind_z) CellInfo{icell}.CoordIndex]; |
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| 151 | NbDim(icell)=3; |
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| 152 | end |
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| 153 | end |
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[514] | 154 | end |
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[530] | 155 | CellInfo{icell}.VarIndex=VarIndex; |
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| 156 | check_select=check_select|check_cell; |
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[514] | 157 | end |
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[530] | 158 | end |
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| 159 | |
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| 160 | %% look for tps coordinates |
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[535] | 161 | ivar_remain=find(~check_select);% indices of remaining variables (not already selected) |
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[530] | 162 | check_coord_tps= strcmp('coord_tps',Role(~check_select)); |
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[535] | 163 | ivar_tps=ivar_remain(check_coord_tps);% variable indices corresponding to tps coordinates |
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[530] | 164 | for icell_tps=1:numel(ivar_tps) |
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[535] | 165 | DimCell=Data.VarDimName{ivar_tps(icell_tps)};% dimension names for the current tps coordinate variable |
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| 166 | icell=numel(CellInfo)+icell_tps; % new field cell index |
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| 167 | CellInfo{icell}.CoordIndex=ivar_tps(icell_tps);% index of the tps coordinate variable |
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[546] | 168 | %CellInfo{icell}.VarIndex_subrange_tps=[]; |
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| 169 | %CellInfo{icell}.VarIndex_nbsites_tps=[]; |
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[530] | 170 | if numel(DimCell)==3 |
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| 171 | VarDimName=Data.VarDimName(~check_select); |
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| 172 | for ivardim=1:numel(VarDimName) |
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| 173 | if strcmp(VarDimName{ivardim},DimCell{3}) |
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| 174 | CellInfo{icell}.NbSite_tps= ivar_remain(ivardim); |
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| 175 | check_cell(ivar_remain(ivardim))=1;% nbre of sites for each tps subdomain |
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| 176 | elseif strcmp(VarDimName{ivardim}{1},DimCell{2}) && strcmp(VarDimName{ivardim}{3},DimCell{3}) |
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| 177 | CellInfo{icell}.SubRange_tps=ivar_remain(ivardim); |
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| 178 | check_cell(ivar_remain(ivardim))=1;% subrange definiton for tps |
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| 179 | elseif strcmp(VarDimName{ivardim}{1},DimCell{1}) && strcmp(VarDimName{ivardim}{2},DimCell{3}) |
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| 180 | check_cell(ivar_remain(ivardim))=1;% variable |
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| 181 | end |
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| 182 | end |
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[514] | 183 | end |
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[530] | 184 | CellInfo{icell}.CoordType='tps'; |
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| 185 | CellInfo{icell}.VarIndex=find(check_cell); |
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[535] | 186 | if check_var |
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| 187 | NbDim(icell)=size(Data.(Data.ListVarName{CellInfo{icell}.CoordIndex}),2); |
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| 188 | CellInfo{icell}.CoordSize=size(Data.(Data.ListVarName{CellInfo{icell}.CoordIndex}),1)*size(Data.(Data.ListVarName{CellInfo{icell}.CoordIndex}),3); |
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| 189 | else |
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[530] | 190 | check_index_1= strcmp(DimCell{1},Data.ListDimName); |
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| 191 | check_index_2= strcmp(DimCell{2},Data.ListDimName); |
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| 192 | check_index_3= strcmp(DimCell{3},Data.ListDimName); |
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| 193 | NbDim(icell)=Data.DimValue(check_index_2); |
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| 194 | CellInfo{icell}.CoordSize=Data.DimValue(check_index_1)*Data.DimValue(check_index_3); |
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[515] | 195 | end |
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[530] | 196 | check_select=check_select|check_cell; |
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[514] | 197 | end |
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| 198 | |
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[535] | 199 | %% look for coordinate variables and corresponding gridded data: |
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| 200 | % coordinate variables are variables associated with a single dimension, defining the coordinate values |
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| 201 | % two cases: 1)the coordiante variable represents the set of coordiante values |
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| 202 | % 2)the coordinate variable contains only two elements, representing the coordinate bounds for the dimension with the same name as the cordinate |
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| 203 | ivar_remain=find(~check_select);% indices of remaining variables, not already taken into account |
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| 204 | ListVarName=Data.ListVarName(~check_select);%list of remaining variables |
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[530] | 205 | VarDimName=Data.VarDimName(~check_select);%dimensions of remaining variables |
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[575] | 206 | check_coord_select= cellfun(@numel,VarDimName)==1|cellfun(@ischar,VarDimName)==1;% find remaining variables with a single dimension |
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| 207 | check_coord(~check_select)=check_coord_select; |
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[535] | 208 | ListCoordIndex=ivar_remain(check_coord);% indices of remaining variables with a single dimension |
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| 209 | ListCoordName=Data.ListVarName(ListCoordIndex);% corresponding names of remaining variables with a single dimension |
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| 210 | ListDimName=Data.VarDimName(ListCoordIndex);% dimension names of remaining variables with a single dimension |
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| 211 | |
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| 212 | %remove redondant variables -> keep only one variable per dimension |
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[530] | 213 | check_keep=logical(ones(size(ListDimName))); |
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| 214 | for idim=1:numel(ListDimName) |
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[535] | 215 | prev_ind=strcmp(ListDimName{idim},ListDimName(1:idim-1));% check whether the dimension is already taken into account |
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[530] | 216 | if ~isempty(prev_ind) |
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[535] | 217 | if strcmp(ListCoordName{idim},ListDimName{idim}) %variable with the same name as the coordinate taken in priority |
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[530] | 218 | check_keep(prev_ind)=0; |
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| 219 | else |
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| 220 | check_keep(idim)=0; |
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[514] | 221 | end |
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| 222 | end |
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| 223 | end |
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[535] | 224 | ListCoordIndex=ListCoordIndex(check_keep);% list of coordinate variable indices |
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| 225 | ListCoordName=ListCoordName(check_keep);% list of coordinate variable names |
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| 226 | ListDimName=ListDimName(check_keep);% list of coordinate dimension names |
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[514] | 227 | |
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[535] | 228 | % determine dimension sizes |
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| 229 | CoordSize=zeros(size(ListCoordIndex)); |
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[530] | 230 | for ilist=1:numel(ListCoordIndex) |
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| 231 | if iscell(ListDimName{ilist}) |
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| 232 | ListDimName(ilist)=ListDimName{ilist};%transform cell to string |
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[514] | 233 | end |
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[535] | 234 | if check_var% if the list of dimensions has been directly defined, no variable data available |
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| 235 | CoordSize(ilist)=numel(Data.(ListCoordName{ilist}));% number of elements in the variable corresponding to the dimension #ilist |
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[530] | 236 | else |
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[535] | 237 | check_index= strcmp(ListDimName{ilist},Data.ListDimName);% find the index in the list of dimensions |
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| 238 | CoordSize(ilist)=Data.DimValue(check_index);% find the corresponding dimension value |
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[530] | 239 | end |
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[535] | 240 | if CoordSize(ilist)==2% case of uniform grid coordinate defined by lower and upper bounds only |
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| 241 | ListDimName{ilist}=ListCoordName{ilist};% replace the dimension name by the coordinate variable name |
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[514] | 242 | end |
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[530] | 243 | end |
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[535] | 244 | |
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| 245 | % group the remaining variables in cells sharing the same coordinate variables |
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[530] | 246 | NewCellInfo={}; |
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| 247 | NewCellDimIndex={}; |
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| 248 | NewNbDim=[]; |
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[535] | 249 | for ivardim=1:numel(VarDimName) % loop at the list of remaining variables |
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| 250 | DimCell=VarDimName{ivardim};% dimension names of the current variable |
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[530] | 251 | if ischar(DimCell), DimCell={DimCell}; end %transform char to cell if needed |
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| 252 | DimIndices=[]; |
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| 253 | for idim=1:numel(DimCell) |
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[535] | 254 | ind_dim=find(strcmp(DimCell{idim},ListDimName));%find the dim index in the list of coordinate variables |
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[530] | 255 | if ~isempty(ind_dim) |
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| 256 | DimIndices=[DimIndices ind_dim]; %update the list of coord dimensions included in DimCell |
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[535] | 257 | if check_var && CoordSize(ind_dim)==2 % determine the size of the coordinate in case of coordiante variable limited to lower and upper bounds |
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[543] | 258 | if isvector(Data.(ListVarName{ivardim})) |
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[535] | 259 | if numel(Data.(ListVarName{ivardim}))>2 |
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| 260 | CoordSize(ind_dim)=numel(Data.(ListVarName{ivardim})); |
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| 261 | end |
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| 262 | else |
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| 263 | CoordSize(ind_dim)=size(Data.(ListVarName{ivardim}),idim); |
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| 264 | end |
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| 265 | end |
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[514] | 266 | end |
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[530] | 267 | end |
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[535] | 268 | % look for cells of variables with the same coordinate variables |
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[530] | 269 | check_previous=0; |
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| 270 | for iprev=1:numel(NewCellInfo) |
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| 271 | if isequal(DimIndices,NewCellDimIndex{iprev}) |
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| 272 | check_previous=1; |
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| 273 | NewCellInfo{iprev}.VarIndex=[NewCellInfo{iprev}.VarIndex ivar_remain(ivardim)];%append the current variable index to the found field cell |
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| 274 | break |
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[514] | 275 | end |
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[530] | 276 | end |
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[535] | 277 | % create a new cell if no previous one contains the coordinate variables |
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[530] | 278 | if ~check_previous |
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| 279 | nbcell=numel(NewCellInfo)+1; |
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| 280 | NewCellDimIndex{nbcell}=DimIndices; |
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| 281 | NewCellInfo{nbcell}.VarIndex=ivar_remain(ivardim);% create a new field cell with the current variable index |
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| 282 | NewNbDim(nbcell)=numel(DimIndices); |
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| 283 | NewCellInfo{nbcell}.CoordType='grid'; |
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| 284 | NewCellInfo{nbcell}.CoordSize=CoordSize; |
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| 285 | NewCellInfo{nbcell}.CoordIndex=ListCoordIndex(DimIndices); |
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| 286 | end |
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| 287 | end |
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| 288 | NbDim=[NbDim NewNbDim]; |
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| 289 | CellInfo=[CellInfo NewCellInfo]; |
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[569] | 290 | % |
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| 291 | % %% suppress empty cells |
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| 292 | % check_empty=cellfun(@isempty,CellInfo); |
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| 293 | % CellInfo(check_empty)=[]; |
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| 294 | % NbDim(check_empty)=[]; |
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[530] | 295 | |
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[569] | 296 | %% suppress empty cells or cells with a single coordinate variable |
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| 297 | check_remove=false(size(CellInfo)); |
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| 298 | for icell=1:numel(check_remove) |
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| 299 | if isempty(CellInfo{icell})||(numel(CellInfo{icell}.VarIndex)==1 && check_coord(icell)) |
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| 300 | check_remove(icell)=1; |
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| 301 | end |
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| 302 | end |
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| 303 | CellInfo(check_remove)=[]; |
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| 304 | NbDim(check_remove)=[]; |
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[530] | 305 | |
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| 306 | %% document roles of non-coordinate variables |
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| 307 | % ListRole={'vector_x','vector_y','vector_z','vector_x_tps','vector_y_tps','warnflag','errorflag',... |
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| 308 | % 'ancillary','image','color','discrete','scalar'};% except coord,coord_x,_y,_z,Coord_tps already taken, into account |
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| 309 | for icell=1:numel(CellInfo) |
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| 310 | VarIndex=CellInfo{icell}.VarIndex; |
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| 311 | for ivar=VarIndex |
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| 312 | if isfield(CellInfo{icell},['VarIndex_' Role{ivar}]) |
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| 313 | CellInfo{icell}.(['VarIndex_' Role{ivar}])=[CellInfo{icell}.(['VarIndex_' Role{ivar}]) ivar]; |
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| 314 | else |
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| 315 | CellInfo{icell}.(['VarIndex_' Role{ivar}])= ivar; |
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[514] | 316 | end |
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[530] | 317 | if ~isempty(FieldRequest{ivar}) |
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| 318 | CellInfo{icell}.FieldRequest=FieldRequest{ivar}; |
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[514] | 319 | end |
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[576] | 320 | if ~isempty(FieldName{ivar}) |
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| 321 | CellInfo{icell}.FieldName=FieldName{ivar}; |
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[514] | 322 | end |
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[530] | 323 | if CheckSub(ivar)==1 |
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| 324 | CellInfo{icell}.CheckSub=1; |
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[514] | 325 | end |
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| 326 | end |
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| 327 | end |
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