simgear/Math/vector.hxx

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/**************************************************************************
* vector.hxx -- additional vector routines
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*
* Written by Curtis Olson, started December 1997.
*
* Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id$
* (Log is kept at end of this file)
**************************************************************************/
#ifndef _VECTOR_HXX
#define _VECTOR_HXX
#ifndef __cplusplus
# error This library requires C++
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#endif
#include <Math/mat3.h>
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/* Map a vector onto the plane specified by normal */
void map_vec_onto_cur_surface_plane(MAT3vec normal, MAT3vec v0, MAT3vec vec,
MAT3vec result);
// Given a point p, and a line through p0 with direction vector d,
// find the shortest distance (squared) from the point to the line
double fgPointLineSquared(MAT3vec p, MAT3vec p0, MAT3vec d);
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#endif /* _VECTOR_HXX */
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/* $Log$
/* Revision 1.2 1998/07/24 21:34:38 curt
/* fgPointLine() rewritten into fgPointLineSquared() ... this ultimately saves
/* us from doing a sqrt().
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/*
* 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
* meters.
*
* Revision 1.4 1998/04/21 17:03:51 curt
* Prepairing for C++ integration.
*
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* Revision 1.3 1998/01/22 02:59:39 curt
* Changed #ifdef FILE_H to #ifdef _FILE_H
*
* Revision 1.2 1998/01/19 19:27:14 curt
* Merged in make system changes from Bob Kuehne <rpk@sgi.com>
* This should simplify things tremendously.
*
* Revision 1.1 1997/12/22 04:13:18 curt
* Initial revision.
*
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*/