SbVec4f.h Source File

00001 /**************************************************************************\
00002  *
00003  *  This file is part of the Coin 3D visualization library.
00004  *  Copyright (C) 1998-2002 by Systems in Motion. All rights reserved.
00005  *
00006  *  This library is free software; you can redistribute it and/or
00007  *  modify it under the terms of the GNU Lesser General Public License
00008  *  version 2.1 as published by the Free Software Foundation. See the
00009  *  file LICENSE.LGPL at the root directory of the distribution for
00010  *  more details.
00011  *
00012  *  If you want to use Coin for applications not compatible with the
00013  *  LGPL, please contact SIM to acquire a Professional Edition license.
00014  *
00015  *  Systems in Motion, Prof Brochs gate 6, 7030 Trondheim, NORWAY
00016  *  http://www.sim.no support@sim.no Voice: +47 22114160 Fax: +47 22207097
00017  *
00018 \**************************************************************************/
00019 
00020 #ifndef COIN_SBVEC4F_H
00021 #define COIN_SBVEC4F_H
00022 
00023 #include <stdio.h>
00024 
00025 #include <Inventor/SbBasic.h>
00026 
00027 class SbVec3f;
00028 
00029 class COIN_DLL_API SbVec4f {
00030 public:
00031   SbVec4f(void);
00032   SbVec4f(const float v[4]);
00033   SbVec4f(const float x, const float y, const float z, const float w);
00034   float dot(const SbVec4f& v) const;
00035   SbBool equals(const SbVec4f& v, const float tolerance) const;
00036   void getReal(SbVec3f& v) const;
00037   const float* getValue(void) const;
00038   void getValue(float& x, float& y, float& z, float& w) const;
00039   float length(void) const;
00040   void negate(void);
00041   float normalize(void);
00042   SbVec4f& setValue(const float v[4]);
00043   SbVec4f& setValue(const float x, const float y, const float z,
00044                     const float w);
00045   float& operator [](const int i);
00046   const float& operator [](const int i) const;
00047   SbVec4f& operator *=(const float d);
00048   SbVec4f& operator /=(const float d);
00049   SbVec4f& operator +=(const SbVec4f& u);
00050   SbVec4f& operator -=(const SbVec4f& u);
00051   SbVec4f operator -(void) const;
00052   friend COIN_DLL_API SbVec4f operator *(const SbVec4f& v, const float d);
00053   friend COIN_DLL_API SbVec4f operator *(const float d, const SbVec4f& v);
00054   friend COIN_DLL_API SbVec4f operator /(const SbVec4f& v, const float d);
00055   friend COIN_DLL_API SbVec4f operator +(const SbVec4f& v1, const SbVec4f& v2);
00056   friend COIN_DLL_API SbVec4f operator -(const SbVec4f& v1, const SbVec4f& v2);
00057   friend COIN_DLL_API int operator ==(const SbVec4f& v1, const SbVec4f& v2);
00058   friend COIN_DLL_API int operator !=(const SbVec4f& v1, const SbVec4f& v2);
00059 
00060   void print(FILE * fp) const;
00061 
00062 private:
00063   float vec[4];
00064 };
00065 
00066 COIN_DLL_API SbVec4f operator *(const SbVec4f& v, const float d);
00067 COIN_DLL_API SbVec4f operator *(const float d, const SbVec4f& v);
00068 COIN_DLL_API SbVec4f operator /(const SbVec4f& v, const float d);
00069 COIN_DLL_API SbVec4f operator +(const SbVec4f& v1, const SbVec4f& v2);
00070 COIN_DLL_API SbVec4f operator -(const SbVec4f& v1, const SbVec4f& v2);
00071 COIN_DLL_API int operator ==(const SbVec4f& v1, const SbVec4f& v2);
00072 COIN_DLL_API int operator !=(const SbVec4f& v1, const SbVec4f& v2);
00073 
00074 #endif // !COIN_SBVEC4F_H