/[MITgcm]/MITgcm_contrib/high_res_cube/matlab-grid-generator/rotate_about_yaxis.m
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Annotation of /MITgcm_contrib/high_res_cube/matlab-grid-generator/rotate_about_yaxis.m

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Revision 1.1.1.1 - (hide annotations) (download) (vendor branch)
Tue Nov 11 18:08:08 2003 UTC (21 years, 8 months ago) by cnh
Branch: MAIN, initial
CVS Tags: baseline, HEAD
Changes since 1.1: +0 -0 lines 
Checking in work done with Dimitri on high-resolution cube gridding and parallel 
communications. 
   o code is in a contrib experiment for now so we can continue collaborating
     on it. However most code is general and will be moved into main branch once 
     it is fully hardened.
   o There are README files in the contrib root and in the subdirectories that
     explain the contents
1 cnh 1.1 function [X,Y,Z]=rotate_about_yaxis(lX,lY,lZ,angle);
2     % [X,Y,Z]=rotate_about_yaxis(lX,lY,lZ,angle);
3     % Rotate about Y axis by "angle".
4    
5     s=sin(angle);
6     c=cos(angle);
7     if c<1e-9
8     c=0;
9     s=sign(s);
10     end
11    
12    
13     X=c*lX+s*lZ;
14     Y=lY;
15     Z=-s*lX+c*lZ;
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