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 #ifndef NL_PLANE_H
+00027 #define NL_PLANE_H
+00028 
+00029 
+00030 #include        "nel/misc/stream.h"
+00031 #include        "nel/misc/vector.h"
+00032 
+00033 
+00034 namespace NLMISC
+00035 {
+00036 
+00037 
+00038 // ======================================================================================================
+00049 class CPlane
+00050 {
+00051 public:
+00052         float   a,b,c,d;
+00053 
+00054 public:
+00055 
+00057 
+00058 
+00059         CPlane() {}
+00061         CPlane(float _a, float _b, float _c, float _d) : a(_a), b(_b), c(_c), d(_d) {}
+00063         CPlane(const CPlane &v) : a(v.a), b(v.b), c(v.c), d(v.d) {}
+00065 
+00066 
+00068 
+00069 
+00073         void    make(const CVector &normal, const CVector &pos);
+00078         void    make(const CVector &p0, const CVector &p1, const CVector &p2);
+00084         CVector getNormal() const;
+00088         void    normalize();
+00092         CPlane  normed() const;
+00094 
+00095 
+00097 
+00098 
+00103         float   distance(const CVector &p) const;
+00105         float   operator*(const CVector &p) const;
+00107         CVector intersect(const CVector &p0,const CVector &p1) const;
+00109         CVector project(const CVector &p0) const;
+00110 
+00117         bool    clipSegmentBack(CVector &p0, CVector &p1) const;
+00124         bool    clipSegmentFront(CVector &p0, CVector &p1) const;
+00125 
+00133         sint    clipPolygonBack(CVector in[], CVector out[], sint nIn) const;
+00141         sint    clipPolygonFront(CVector in[], CVector out[], sint nIn) const;
+00143 
+00145 
+00146 
+00147                 CPlane  inverted() const;
+00148 
+00150                 void    invert();
+00152 
+00154 
+00155         void    serial(IStream &f)
+00156         {
+00157                 f.serial(a,b,c,d);
+00158         }
+00160 
+00161 };
+00162 
+00163 
+00164 }
+00165 
+00166 
+00167 #include "nel/misc/plane_inline.h"
+00168 
+00169 
+00170 #endif // NL_PLANE_H
+00171 
+00172 /* End of plane.h */
+