basegfx/source/point/b2dpoint.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_basegfx.hxx"
  33 #include <basegfx/point/b2dpoint.hxx>
  34 #include <basegfx/matrix/b2dhommatrix.hxx>
  35 #include <basegfx/numeric/ftools.hxx>
  36
  37 //////////////////////////////////////////////////////////////////////////////
  38
  39 namespace basegfx
  40 {
  41     B2DPoint& B2DPoint::operator=( const ::basegfx::B2DTuple& rPoint )
  42     {
  43         mfX = rPoint.getX();
  44         mfY = rPoint.getY();
  45         return *this;
  46     }
  47
  48     B2DPoint& B2DPoint::operator*=( const ::basegfx::B2DHomMatrix& rMat )
  49     {
  50         double fTempX(
  51             rMat.get(0, 0) * mfX +
  52             rMat.get(0, 1) * mfY +
  53             rMat.get(0, 2));
  54         double fTempY(
  55             rMat.get(1, 0) * mfX +
  56             rMat.get(1, 1) * mfY +
  57             rMat.get(1, 2));
  58
  59         if(!rMat.isLastLineDefault())
  60         {
  61             const double fOne(1.0);
  62             const double fTempM(
  63                 rMat.get(2, 0) * mfX +
  64                 rMat.get(2, 1) * mfY +
  65                 rMat.get(2, 2));
  66
  67             if(!fTools::equalZero(fTempM) && !fTools::equal(fOne, fTempM))
  68             {
  69                 fTempX /= fTempM;
  70                 fTempY /= fTempM;
  71             }
  72         }
  73
  74         mfX = fTempX;
  75         mfY = fTempY;
  76
  77         return *this;
  78     }
  79
  80     B2DPoint operator*( const ::basegfx::B2DHomMatrix& rMat, const B2DPoint& rPoint )
  81     {
  82         B2DPoint aRes( rPoint );
  83         return aRes *= rMat;
  84     }
  85 } // end of namespace basegfx
  86
  87 //////////////////////////////////////////////////////////////////////////////
  88 // eof