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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_VECTOR_H
00027 #define NL_VECTOR_H
00028 
00029 #include "nel/misc/types_nl.h"
00030 
00031 #include <math.h>
00032 #include <string>
00033 
00034 #include "nel/misc/stream.h"
00035 
00036 namespace       NLMISC
00037 {
00038 
00039 class IStream;
00040 
00041 // ======================================================================================================
00048 class CVector
00049 {
00050 public:         // Attributes.
00051         float   x,y,z;
00052 
00053 public:         // const.
00055         static const    CVector         Null;
00057         static const    CVector         I;
00059         static const    CVector         J;
00061         static const    CVector         K;
00062 
00063 public:         // Methods.
00065 
00066 
00067         CVector() {}
00069         CVector(float   _x, float _y, float _z) : x(_x), y(_y), z(_z) {}
00071         CVector(const CVector &v) : x(v.x), y(v.y), z(v.z) {}
00073 
00075 
00076         CVector &operator+=(const CVector &v);
00077         CVector &operator-=(const CVector &v);
00078         CVector &operator*=(float f);
00079         CVector &operator/=(float f);
00080         CVector operator+(const CVector &v) const;
00081         CVector operator-(const CVector &v) const;
00082         CVector operator*(float f) const;
00083         CVector operator/(float f) const;
00084         CVector operator-() const;
00086 
00088 
00089 
00090         float   operator*(const CVector &v) const;
00094         CVector operator^(const CVector &v) const;
00096         float   norm() const;
00098         float   sqrnorm() const;
00100         void    normalize();
00102         CVector normed() const;
00104 
00106 
00107         void    set(float _x, float _y, float _z);
00108         bool    operator==(const CVector &v) const;
00109         bool    operator!=(const CVector &v) const;
00110         bool    isNull() const;
00112         bool    operator<(const CVector &v) const;
00122         void    sphericToCartesian(float r, float theta,float phi);
00128         void    cartesianToSpheric(float &r, float &theta,float &phi) const;
00130         void    minof(const CVector &a, const CVector &b);
00132         void    maxof(const CVector &a, const CVector &b);
00134         void    serial(IStream &f);
00136 
00138         std::string     asString() const;
00139 
00140         // friends.
00141         friend  CVector operator*(float f, const CVector &v0);
00142 };
00143 
00144 
00145 }
00146 
00147 
00148 #include "nel/misc/vector_inline.h"
00149 
00150 
00151 #endif // NL_VECTOR_H
00152 
00153 /* End of vector.h */