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Various "inline" code optimizations contributed by Norman Vine.

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This commit is contained in:
curt
1998-08-24 20:04:08 +00:00
parent dacc051a57
commit aef484d5fc
7 changed files with 225 additions and 43 deletions
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29
Math/vector.hxx
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@@ -33,12 +33,28 @@
#endif
#include <Math/mat3.h>
#include "mat3.h"
/* Map a vector onto the plane specified by normal */
void map_vec_onto_cur_surface_plane(MAT3vec normal, MAT3vec v0, MAT3vec vec,
#if defined( USE_XTRA_MAT3_INLINES )
# define map_vec_onto_cur_surface_plane(normal, v0, vec, result) { \
double scale = ((normal[0]*vec[0]+normal[1]*vec[1]+normal[2]*vec[2]) / \
(normal[0]*normal[0]+normal[1]*normal[1]+normal[2]*normal[2])); \
result[0] = vec[0]-normal[0]*scale; \
result[1] = vec[1]-normal[1]*scale; \
result[2] = vec[2]-normal[2]*scale; \
}
#else
void map_vec_onto_cur_surface_plane(MAT3vec normal, MAT3vec v0, MAT3vec vec,
MAT3vec result);
#endif //defined( USE_XTRA_MAT3_INLINES )
// Given a point p, and a line through p0 with direction vector d,
// find the shortest distance from the point to the line
double fgPointLine(MAT3vec p, MAT3vec p0, MAT3vec d);
// Given a point p, and a line through p0 with direction vector d,
// find the shortest distance (squared) from the point to the line
@@ -49,10 +65,13 @@ double fgPointLineSquared(MAT3vec p, MAT3vec p0, MAT3vec d);
/* $Log$
/* Revision 1.2 1998/07/24 21:34:38 curt
/* fgPointLine() rewritten into fgPointLineSquared() ... this ultimately saves
/* us from doing a sqrt().
/* Revision 1.3 1998/08/24 20:04:13 curt
/* Various "inline" code optimizations contributed by Norman Vine.
/*
* Revision 1.2 1998/07/24 21:34:38 curt
* fgPointLine() rewritten into fgPointLineSquared() ... this ultimately saves
* us from doing a sqrt().
*
* Revision 1.1 1998/07/08 14:40:10 curt
* polar3d.[ch] renamed to polar3d.[ch]xx, vector.[ch] renamed to vector.[ch]xx
* Updated fg_geodesy comments to reflect that routines expect and produce