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function [dimOut]=write2nctiles(fileOut,fldIn,doCreate,varargin); |
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%object : write gcmfaces object to netcdf files (tiled) |
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%inputs : fileOut is the name of the file to be created |
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% fldIn is the array to write to disk |
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% doCreate is a 0/1 switch; 1 => create file ; 0 => append to file. |
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%optional paramaters : |
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% can be provided in the form {'name',value} |
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% those that are currently active are |
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% 'descr' is the file description (default ''). |
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% 'rdm' is the extended estimate description (default ''). |
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% 'fldName' is the nc variable name for fld (default : the outside name of fldIn). |
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% 'longName' is the corresponding long name (default : ''). |
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% 'units' is the unit of fld (default : '(unknown)'). |
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% 'missval' is the missing value (default : NaN). |
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% 'fillval' is the fill value (default : NaN). |
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% 'tileNo' is a map of tile indices (default is face number) |
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% 'coord' is auxilliary coordinates attribute (e.g. 'lon lat dep') |
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%netcdf dimensions : array dimensions are simply set to 'i1,i2,...' |
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|
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gcmfaces_global; |
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if ~(myenv.useNativeMatlabNetcdf); |
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error('only native matlab nectdf is supported in write2nctiles'); |
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end; |
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|
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doCheck=0;%set to one to print stuff to screen |
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|
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fldInIsaGcmfaces=isa(fldIn,'gcmfaces'); |
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|
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%set more optional paramaters to default values |
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descr=''; |
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rdm=''; |
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fldName=inputname(2); longName=''; |
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units='(unknown)'; missval=NaN; fillval=NaN; dimIn=[]; |
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tileNo=mygrid.XC; for ff=1:mygrid.nFaces; tileNo{ff}(:)=ff; end; |
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coord=''; |
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|
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%set more optional paramaters to user defined values |
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for ii=1:nargin-3; |
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if ~iscell(varargin{ii}); |
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warning('inputCheck:write2nctiles_1',... |
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['write2nctiles expects \n'... |
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' its optional parameters as cell arrays. \n'... |
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' Argument no. ' num2str(ii+1) ' was ignored \n'... |
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' Type ''help write2nctiles'' for details.']); |
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elseif ~ischar(varargin{ii}{1}); |
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warning('inputCheck:write2nctiles_2',... |
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['write2nctiles expects \n'... |
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' its optional parameters cell arrays \n'... |
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' to start with character string. \n'... |
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' Argument no. ' num2str(ii+1) ' was ignored \n'... |
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' Type ''help write2nctiles'' for details.']); |
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else; |
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if strcmp(varargin{ii}{1},'descr')|... |
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strcmp(varargin{ii}{1},'rdm')|... |
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strcmp(varargin{ii}{1},'fldName')|... |
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strcmp(varargin{ii}{1},'longName')|... |
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strcmp(varargin{ii}{1},'units')|... |
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strcmp(varargin{ii}{1},'missval')|... |
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strcmp(varargin{ii}{1},'fillval')|... |
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strcmp(varargin{ii}{1},'tileNo')|... |
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strcmp(varargin{ii}{1},'coord')|... |
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strcmp(varargin{ii}{1},'dimIn'); |
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eval([varargin{ii}{1} '=varargin{ii}{2};']); |
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else; |
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warning('inputCheck:write2nctiles_3',... |
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['unknown option ''' varargin{ii}{1} ''' was ignored']); |
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end; |
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end; |
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end; |
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|
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%split fldIn (if isa gcmfaces) into tiles |
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tileList=unique(convert2vector(tileNo)); |
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tileList=tileList(~isnan(tileList)); |
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ntile=length(tileList); |
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% |
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if fldInIsaGcmfaces; |
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for ff=1:ntile; |
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tmp1=[]; |
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for gg=1:mygrid.nFaces; |
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[tmpi,tmpj]=find(tileNo{gg}==ff); |
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if ~isempty(tmpi); |
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tmpi=[min(tmpi(:)):max(tmpi(:))]; |
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tmpj=[min(tmpj(:)):max(tmpj(:))]; |
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tmp1=fldIn{gg}(tmpi,tmpj,:,:); |
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end; |
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end; |
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fldTiles{ff}=tmp1; |
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end; |
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clear fldIn; |
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end; |
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|
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%start processing loop |
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for ff=1:ntile; |
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|
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if fldInIsaGcmfaces; |
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fldTile=fldTiles{ff}; |
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%reverse order of dimensions |
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nn=length(size(fldTile)); |
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fldTile=permute(fldTile,[nn:-1:1]); |
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if ntile==1; clear fldTiles; end; |
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else; |
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fldTile=fldIn; |
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end; |
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fileTile=[fileOut sprintf('.%04d.nc',ff)]; |
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|
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%select dimensions of relevance: |
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nDim=length(size(fldTile)); |
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dimsize=size(fldTile); |
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for iDim=1:nDim; |
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if size(fldTile,iDim)~=1; |
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dimlist{iDim}=['i' num2str(iDim)]; |
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dimName{iDim}=['array index ' num2str(iDim)]; |
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eval(['dimvec.i' num2str(iDim) '=[1:size(fldTile,iDim)];']); |
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end; |
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end; |
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|
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%omit singleton dimensions: |
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ii=find(dimsize~=1); |
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dimsize=dimsize(ii); |
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dimlist={dimlist{ii}}; |
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dimName={dimName{ii}}; |
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|
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%check : |
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if doCheck; |
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whos fldTile |
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descr |
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fldName |
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longName |
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units |
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missval |
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fillval |
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dimlist |
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dimName |
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dimsize |
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dimvec |
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keyboard; |
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end; |
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|
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%output dimension information |
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dimOut{ff}=dimlist; |
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|
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if doCreate; |
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%create netcdf file: |
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%------------------- |
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if prod(size(fldTile))*4/1e9<1.5;%use (always available) basic ncetcf: |
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mode='clobber'; |
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else;%to allow for large file: |
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mode='NETCDF4'; |
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end; |
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ncid=nccreate(fileTile,mode); |
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nc_global=netcdf.getConstant('NC_GLOBAL'); |
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|
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if ~isempty(rdm); |
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descr2=[descr ' -- ' rdm{1}]; |
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else; |
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descr2=descr; |
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end; |
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ncputAtt(ncid,'','description',descr2); |
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for pp=2:length(rdm); |
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tmp1=char(pp+63); |
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netcdf.putAtt(ncid,nc_global,tmp1,rdm{pp}); |
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end; |
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%append readme |
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pp=length(rdm)+1; |
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netcdf.putAtt(ncid,nc_global,tmp1,'file created using gcmfaces_IO/write2nctiles.m'); |
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ncputAtt(ncid,'','date',date); |
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netcdf.putAtt(ncid,nc_global,'Conventions','CF-1.6') |
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|
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ncputAtt(ncid,'','_FillValue',fillval); |
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ncputAtt(ncid,'','missing_value',missval); |
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|
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ncdefDim(ncid,'itxt',30); |
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for dd=1:length(dimlist); ncdefDim(ncid,dimlist{dd},dimsize(dd)); end; |
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|
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for dd=1:length(dimlist); |
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ncdefVar(ncid,dimlist{dd},'double',{dimlist{dd}}); |
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ncputAtt(ncid,dimlist{dd},'long_name',dimName{dd}); |
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ncputAtt(ncid,dimlist{dd},'units','1'); |
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end; |
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ncclose(ncid); |
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|
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%fill in the dimensions dimensions values vectors: |
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%------------------------------------------------- |
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ncid=ncopen(fileTile,'write'); |
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for dd=1:length(dimlist); |
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ncputvar(ncid,dimlist{dd},getfield(dimvec,dimlist{dd})); |
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end; |
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ncclose(ncid); |
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end; |
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|
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%use dimentsion specified by user |
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if ~isempty(dimIn); dimlist=dimIn{ff}; end; |
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|
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%define and fill field: |
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%---------------------- |
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ncid=ncopen(fileTile,'write'); |
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% |
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netcdf.reDef(ncid); |
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ncdefVar(ncid,fldName,'double',flipdim(dimlist,2));%note the direction flip |
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if ~isempty(longName); ncputAtt(ncid,fldName,'long_name',longName); end; |
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if ~isempty(units); ncputAtt(ncid,fldName,'units',units); end; |
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if ~isempty(coord); ncputAtt(ncid,fldName,'coordinates',coord); end; |
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if strcmp(fldName,'lon'); ncputAtt(ncid,fldName,'standard_name','longitude'); end; |
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if strcmp(fldName,'lat'); ncputAtt(ncid,fldName,'standard_name','latitude'); end; |
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if strcmp(fldName,'dep'); ncputAtt(ncid,fldName,'standard_name','depth'); end; |
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if strcmp(fldName,'tim'); ncputAtt(ncid,fldName,'standard_name','time'); end; |
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if strcmp(fldName,'land'); ncputAtt(ncid,fldName,'standard_name','land_binary_mask'); end; |
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if strcmp(fldName,'area'); ncputAtt(ncid,fldName,'standard_name','cell_area'); end; |
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if strcmp(fldName,'thic'); ncputAtt(ncid,fldName,'standard_name','cell_thickness'); end; |
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netcdf.endDef(ncid); |
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% |
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ncputvar(ncid,fldName,fldTile); |
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ncclose(ncid); |
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|
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end;%for ff=1:ntile; |
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