nevrax.org : docs

00001 
00007 /* Copyright, 2000 Nevrax Ltd.
00008  *
00009  * This file is part of NEVRAX NEL.
00010  * NEVRAX NEL is free software; you can redistribute it and/or modify
00011  * it under the terms of the GNU General Public License as published by
00012  * the Free Software Foundation; either version 2, or (at your option)
00013  * any later version.
00014 
00015  * NEVRAX NEL is distributed in the hope that it will be useful, but
00016  * WITHOUT ANY WARRANTY; without even the implied warranty of
00017  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
00018  * General Public License for more details.
00019 
00020  * You should have received a copy of the GNU General Public License
00021  * along with NEVRAX NEL; see the file COPYING. If not, write to the
00022  * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
00023  * MA 02111-1307, USA.
00024  */
00025 
00026 #include "stdmisc.h"
00027 
00028 #include "nel/misc/line.h"
00029 #include <limits>
00030 
00031 namespace NLMISC 
00032 {
00033 
00034 void CLine::project(const CVector &inV,CVector &outV)
00035 {
00036         CVector seg = V1 - V0;  
00037         float n = seg.sqrnorm();
00038         if (n == 0.f)
00039         {
00040                 outV = V0;
00041         }
00042         else
00043         {
00044                 float dp = (inV - V0) * seg;
00045                 outV = V0 + (dp /  n) * seg;
00046         }
00047 }
00048 
00049 
00050 
00051 } // NLMISC
line.cpp
