source: Sophya/trunk/SophyaExt/XephemAstroLib/vector.h@ 3887

Last change on this file since 3887 was 3654, checked in by cmv, 16 years ago

mise a niveau Xephem 3.7.4, cmv 16/07/2009
File size: 704 bytes
Line 
1#ifndef __SATVECTOR_H
2#define __SATVECTOR_H
3
4/* $Id: vector.h,v 1.8 2009-07-16 10:34:39 cmv Exp $ */
5
6#define dotp(A,B) ((A).x*(B).x+(A).y*(B).y+(A).z*(B).z)
7
8#define crossp(A,B,C) {(C).x=(A).y*(B).z-(A).z*(B).y;(C).y=(A).z*(B).x-(A).x*(B).z;(C).z=(A).x*(B).y-(A).y*(B).x;}
9
10#define vecabs(V) (sqrt((V).x*(V).x+(V).y*(V).y+(V).z*(V).z))
11#define vecsq(V) ((V).x*(V).x+(V).y*(V).y+(V).z*(V).z)
12#define vecsub(A,B,C) {(C).x=(A).x-(B).x;(C).y=(A).y-(B).y;(C).z=(A).z-(B).z;}
13#define vecscale(A,k) {(A).x*=(k);(A).y*=(k);(A).z*=(k);}
14
15#endif /* __SATVECTOR_H */
16
17/* For RCS Only -- Do Not Edit
18 * @(#) $RCSfile: vector.h,v $ $Date: 2009-07-16 10:34:39 $ $Revision: 1.8 $ $Name: not supported by cvs2svn $
19 */
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