binfilter/inc/bf_svx/matrix3d.hxx

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  30
  31 #ifndef _SVX_MATRIX3D_HXX
  32 #define _SVX_MATRIX3D_HXX
  33
  34 #ifndef _B3D_HMATRIX_HXX
  35 #include <bf_goodies/hmatrix.hxx>
  36 #endif
  37
  38 namespace binfilter {
  39
  40 /*************************************************************************
  41 |*
  42 |* 3D-Transformationsmatrix, bestehend aus 3 Zeilenvektoren und
  43 |* einem Spaltenvektor, der die Translation enthaelt:
  44 |*
  45 |*      |V11 V12 V13 T1|
  46 |*  M = |V21 V22 C33 T2|
  47 |*      |V31 V32 V33 T3|
  48 |*
  49 |* Vektortransformation durch Postmultiplikation mit Spaltenvektoren:
  50 |* V' = M * V
  51 |* Matrixverkettung per Postmultiplikation mit Transformation oder
  52 |* anderer Matrix:
  53 |* M' = [T,S,Rxyz] * M oder
  54 |* M' = M2 * M
  55 |*
  56 \************************************************************************/
  57
  58 class Old_Matrix3D
  59 {
  60 protected:
  61     Vector3D                                    M[3];
  62     Vector3D                                    aTranslation;
  63
  64  public:
  65     // default: Einheitsmatrix erstellen (Vektoren sind auf 0 initialisiert)
  66     Old_Matrix3D() { M[0][0] = M[1][1] = M[2][2] = 1; }
  67
  68     // Zeilenvektor zurueckgeben
  69     Vector3D& operator[](int nPos) { return M[nPos]; }
  70     const Vector3D& operator[](int nPos) const { return M[nPos]; }
  71
  72     // Spaltenvektor zurueckgeben
  73     Vector3D GetColumnVector(int nCol) const
  74         { return Vector3D(M[0][nCol], M[1][nCol], M[2][nCol]); }
  75
  76     friend SvStream& operator>>(SvStream& rIStream, Old_Matrix3D&);
  77     friend SvStream& operator<<(SvStream& rOStream, const Old_Matrix3D&);
  78
  79     operator Matrix4D();
  80     Old_Matrix3D operator=(const Matrix4D&);
  81 };
  82
  83 }//end of namespace binfilter
  84 #endif