binfilter/inc/bf_goodies/point4d.hxx

   1 /*************************************************************************
   2  *
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * Copyright 2008 by Sun Microsystems, Inc.
   6  *
   7  * OpenOffice.org - a multi-platform office productivity suite
   8  *
   9  * $RCSfile: point4d.hxx,v $
  10  * $Revision: 1.4 $
  11  *
  12  * This file is part of OpenOffice.org.
  13  *
  14  * OpenOffice.org is free software: you can redistribute it and/or modify
  15  * it under the terms of the GNU Lesser General Public License version 3
  16  * only, as published by the Free Software Foundation.
  17  *
  18  * OpenOffice.org is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU Lesser General Public License version 3 for more details
  22  * (a copy is included in the LICENSE file that accompanied this code).
  23  *
  24  * You should have received a copy of the GNU Lesser General Public License
  25  * version 3 along with OpenOffice.org.  If not, see
  26  * <http://www.openoffice.org/license.html>
  27  * for a copy of the LGPLv3 License.
  28  *
  29  ************************************************************************/
  30
  31 #ifndef _B3D_POINT4D_HXX
  32 #define _B3D_POINT4D_HXX
  33
  34 #ifndef _SVX_VECTOR3D_HXX //autogen
  35 #include "vector3d.hxx"
  36 #endif
  37
  38 #ifndef _SVX_POINT3D_HXX
  39 #include "point3d.hxx"
  40 #endif
  41
  42 #ifndef _STREAM_HXX
  43 #include <tools/stream.hxx>
  44 #endif
  45
  46
  47 /*************************************************************************
  48 |*
  49 |* homogener 4D-Punkt (x,y,z,w)
  50 |*
  51 \************************************************************************/
  52
  53 namespace binfilter {
  54 class Point4D
  55 {
  56 protected:
  57     // 4 Dimensinen, X,Y,Z und W
  58     double V[4];
  59
  60     void        ImplHomogenize();
  61
  62 public:
  63     Point4D(double fX = 0.0, double fY = 0.0, double fZ = 0.0, double fW = 1.0)
  64         { V[0] = fX; V[1] = fY; V[2] = fZ; V[3] = fW; }
  65     Point4D(const Vector3D& rVec, double fW = 1.0);
  66
  67     const double& X() const { return V[0]; }
  68     const double& Y() const { return V[1]; }
  69     const double& Z() const { return V[2]; }
  70     const double& W() const { return V[3]; }
  71
  72     double& X() { return V[0]; }
  73     double& Y() { return V[1]; }
  74     double& Z() { return V[2]; }
  75     double& W() { return V[3]; }
  76
  77     const double& operator[] (int nPos) const { return V[nPos]; }
  78     double& operator[] (int nPos) { return V[nPos]; }
  79
  80     void        Homogenize() { if(V[3] != 1.0) ImplHomogenize(); }
  81     const Vector3D& GetVector3D() const;
  82
  83     void CalcInBetween(Point4D& rOld1, Point4D& rOld2, double t);
  84     void CalcMiddle(Point4D& rOld1, Point4D& rOld2);
  85
  86     // Rechnen untereinander
  87     Point4D&    operator+=      (const Point4D&);
  88     Point4D&    operator-=      (const Point4D&);
  89     Point4D             operator+       (const Point4D&) const;
  90     Point4D             operator-       (const Point4D&) const;
  91     Point4D             operator-       (void) const;
  92     Point4D&    operator*=      (const Point4D&);
  93     Point4D&    operator/=      (const Point4D&);
  94     Point4D             operator*       (const Point4D&) const;
  95     Point4D             operator/       (const Point4D&) const;
  96
  97     // Verschiebung um einen Vektor
  98     Point4D&    operator+=      (const Vector3D&);
  99     Point4D&    operator-=      (const Vector3D&);
 100     Point4D             operator+       (const Vector3D&) const;
 101     Point4D             operator-       (const Vector3D&) const;
 102
 103     // Multiplikation, Division um einen Faktor
 104     Point4D&    operator*=      (double);
 105     Point4D             operator*       (double) const;
 106     Point4D&    operator/=      (double);
 107     Point4D             operator/       (double) const;
 108
 109     BOOL                operator==      (const Point4D&) const;
 110     BOOL                operator!=      (const Point4D&) const;
 111
 112     friend SvStream& operator>>(SvStream& rIStream, Point4D&);
 113     friend SvStream& operator<<(SvStream& rOStream, const Point4D&);
 114 };
 115 }//end of namespace binfilter
 116
 117
 118 #endif          // _B3D_POINT4D_HXX