/[MITgcm]/MITgcm_contrib/gael/matlab_class/gcmfaces_IO/convert2gcmfaces.m
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Annotation of /MITgcm_contrib/gael/matlab_class/gcmfaces_IO/convert2gcmfaces.m

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Revision 1.3 - (hide annotations) (download)
Sun May 2 20:38:03 2010 UTC (15 years, 2 months ago) by gforget
Branch: MAIN
Changes since 1.2: +29 -8 lines
make convert2gcmfaces.m more versatile: it can now handle the
straight global file format, the cube format, and the compact format.

1 gforget 1.1 function [v1]=convert2gcmfaces(v0,varargin);
2    
3 gforget 1.3 global fileFormat;
4     if isempty(fileFormat);
5     fprintf('\nconvert2gcmfaces.m init: there are several supported file conventions. \n');
6     fprintf(' By default gcmfaces assumes MITgcm type binary formats as follows: \n')
7     fprintf(' (1 face) straight global format; (4 or 5 faces) compact global format\n');
8     fprintf(' (6 faces) cube format with one face after the other. \n');
9     fprintf(' If this is inadequate, you can change the format below.\n\n');
10     if nargin==1; nFaces=5; else; nFaces=varargin{1}; end;
11     if nFaces==1; fileFormat='straight';
12     elseif nFaces==6; fileFormat='cube';
13     else; fileFormat='compact';
14     end;
15     end;
16    
17 gforget 1.1 aa=whos('v0'); doGcm2Faces=strcmp(aa.class,'double');
18    
19     if doGcm2Faces;
20    
21     if nargin==1; nFaces=5; else; nFaces=varargin{1}; end;
22    
23 gforget 1.3 [n1,n2,n3,n4]=size(v0);
24    
25     if strcmp(fileFormat,'straight');
26     v1={v0};
27     elseif strcmp(fileFormat,'cube');
28     for ii=1:6; v1{ii}=v0(n2*(ii-1)+[1:n2],:,:,:); end;
29     elseif strcmp(fileFormat,'compact');
30 gforget 1.1
31     nn=size(v0,1);
32     pp=size(v0,2)/nn;
33     mm=(pp+4-nFaces)/4*nn;
34    
35 gforget 1.2 v00=reshape(v0,[nn*nn*pp n3*n4]);
36     i0=1; i1=nn*mm; v1{1}=reshape(v00(i0:i1,:),[nn mm n3 n4]);
37     i0=i1+1; i1=i1+nn*mm; v1{2}=reshape(v00(i0:i1,:),[nn mm n3 n4]);
38     i0=i1+1; i1=i1+nn*nn; v1{3}=reshape(v00(i0:i1,:),[nn nn n3 n4]);
39     i0=i1+1; i1=i1+nn*mm; v1{4}=reshape(v00(i0:i1,:),[mm nn n3 n4]);
40     i0=i1+1; i1=i1+nn*mm; v1{5}=reshape(v00(i0:i1,:),[mm nn n3 n4]);
41     if nFaces==6;
42     i0=i1+1; i1=i1+nn*nn; v1{6}=reshape(v00(i0:i1,:),[nn nn n3 n4]);
43     end;
44 gforget 1.1
45     end;
46    
47     if nFaces==1; gridType='ll'; elseif nFaces==5; gridType='llc'; elseif nFaces==6; gridType='cube'; end;
48     v1=gcmfaces(v1,gridType);
49    
50     else;
51    
52     nFaces=get(v0,'nFaces');
53    
54 gforget 1.3 [n1,n2,n3,n4]=size(v0{1});
55    
56     if strcmp(fileFormat,'straight');
57     v1=v0{1};
58     elseif strcmp(fileFormat,'cube');
59     v1=zeros(n2*6,n2,n3,n4);
60     for ii=1:6; v1([1:n2]+(ii-1)*n2,:,:,:)=v0{ii}; end;
61     elseif strcmp(fileFormat,'compact');
62 gforget 1.1
63     v0_faces=v0; clear v0;
64     for iFace=1:nFaces; eval(['v0{iFace}=get(v0_faces,''f' num2str(iFace) ''');']); end;
65    
66     nn=size(v0{1},1); mm=size(v0{1},2);
67     pp=mm/nn*4+nFaces-4;
68    
69     n3=size(v0{1},3); n4=size(v0{1},4);
70     v1=NaN*zeros(nn,nn*pp,n3,n4);
71    
72 gforget 1.2 v11=NaN*zeros(nn*nn*pp,n3*n4);
73    
74     i0=1; i1=nn*mm; tmp1=reshape(v0{1},[nn*mm n3*n4]); v11(i0:i1,:)=tmp1(:,:);
75     i0=i1+1; i1=i1+nn*mm; tmp1=reshape(v0{2},[nn*mm n3*n4]); v11(i0:i1,:)=tmp1(:,:);
76     i0=i1+1; i1=i1+nn*nn; tmp1=reshape(v0{3},[nn*nn n3*n4]); v11(i0:i1,:)=tmp1(:,:);
77     i0=i1+1; i1=i1+nn*mm; tmp1=reshape(v0{4},[mm*nn n3*n4]); v11(i0:i1,:)=tmp1(:,:);
78     i0=i1+1; i1=i1+nn*mm; tmp1=reshape(v0{5},[mm*nn n3*n4]); v11(i0:i1,:)=tmp1(:,:);
79     if nFaces==6;
80     i0=i1+1; i1=i1+nn*nn; tmp1=reshape(v0{6},[nn*nn n3*n4]); v11(i0:i1,:)=tmp1(:,:);
81     end;
82 gforget 1.1
83 gforget 1.2 v1=reshape(v11,[nn nn*pp n3 n4]);
84 gforget 1.1
85     end;
86    
87     end;
88    
89    

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