/[MITgcm]/MITgcm_contrib/cnh_cs_plot/load_cs_bathy.m
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Revision 1.1 - (hide annotations) (download)
Tue Mar 15 18:05:55 2005 UTC (19 years, 2 months ago) by cnh
Branch: MAIN
CVS Tags: HEAD
Adding cube face plotting utility + t32 example that it uses.

1 cnh 1.1 function [bathy_obj]=load_cs_bathy(csg_obj,gdir,fname,prec);
2     %
3     % Load cube sphere bathymetry
4     % e.g. load_cs_bathy(csg,'t32','bathy.bin','float64');
5     % returns bathymetry and polygons that define bathymetry.
6     %
7    
8     % 1 - Read land
9     ng=csg_obj.ng;
10     nb=csg_obj.nb;
11     nr=csg_obj.nr;
12     nxd=nb+1+nr+1+ng+1+nb+1;
13     nyd=ng+1+nb+1+nr+1;
14    
15     fnam=sprintf('%s/%s',gdir,fname);
16     fid=fopen(fnam,'r','ieee-be');
17     tmparr=ones(ng*6*ng,1);
18     tmparr=fread(fid,ng*ng*6,prec);
19     tmparr=reshape(tmparr,[ng*6,ng]);
20     fclose(fid);
21     bathyarr=ones(nxd,nyd)*12345.6789;
22     for i= 1:6
23     ilog=csg_obj.ilog(i);
24     jlog=csg_obj.jlog(i);
25     fx=csg_obj.fx(i);
26     fy=csg_obj.fy(i);
27     ihi=ilog+fx-1;jhi=jlog+fy-1;
28     tmp=tmparr((i-1)*ng+1:i*ng,1:ng);
29     bathyarr(ilog:ihi,jlog:jhi)=reshape(tmp,[fx fy]);
30     end
31     bathyarr(find(bathyarr==12345.6789))=NaN;
32    
33     % Do some plots on a lat-lon figure
34     clf
35     axis([-180 180 -90 90]);hold on;
36     xg=csg_obj.gridarr(:,:,csg_obj.xgpos);
37     yg=csg_obj.gridarr(:,:,csg_obj.ygpos);
38     clear xc yc;
39     nc=0;
40     np=0;
41     clear xcoord ycoord;
42     xcoord=ones(2,ng*ng*6*4);
43     ycoord=ones(2,ng*ng*6*4);
44     for t=1:6
45     ilo=csg_obj.ilog(t);jlo=csg_obj.jlog(t);
46     ihi=csg_obj.ilog(t)+csg_obj.fx(t);
47     jhi=csg_obj.jlog(t)+csg_obj.fy(t);
48     nlo=nc+1;
49     nhi=nc+(ihi-ilo)*(jhi-jlo);
50     a=bathyarr(ilo:ihi-1,jlo:jhi-1);
51     c(nlo:nhi)=a(:);
52     nc=nc+(ihi-ilo)*(jhi-jlo);
53    
54     end
55     %clf
56     %patch(px,py,c,'Edgecolor','none');
57     %patch(px,py,'r','Edgecolor','none');
58    
59     %set(gcf,'PaperSize',[16 8]);
60     %set(gcf,'PaperPosition',[0 0 16 8]);
61     %set(gca,'Position',[0 0 1 1]);
62     %print -djpeg100 -r600 -painters foo.jpeg
63    
64     bathy_obj.bathyarr=bathyarr;
65     bathy_obj.c=c;
66    
67     return

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