chart2/source/view/main/Linear3DTransformation.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_chart2.hxx"
  33 #include "Linear3DTransformation.hxx"
  34 #include <algorithm>
  35
  36 using namespace ::com::sun::star;
  37
  38 using ::com::sun::star::uno::Sequence;
  39 using ::com::sun::star::uno::RuntimeException;
  40
  41 namespace chart
  42 {
  43
  44     Linear3DTransformation::Linear3DTransformation( const drawing::HomogenMatrix& rHomMatrix, bool bSwapXAndY )
  45     : m_Matrix(rHomMatrix)
  46     , m_bSwapXAndY(bSwapXAndY)
  47 {}
  48
  49 Linear3DTransformation::~Linear3DTransformation()
  50 {}
  51
  52 // ____ XTransformation ____
  53 Sequence< double > SAL_CALL Linear3DTransformation::transform(
  54                         const Sequence< double >& rSourceValues )
  55     throw (RuntimeException,
  56            lang::IllegalArgumentException)
  57 {
  58     double fX = rSourceValues[0];
  59     double fY = rSourceValues[1];
  60     double fZ = rSourceValues[2];
  61     if(m_bSwapXAndY)
  62         std::swap(fX,fY);
  63     Sequence< double > aNewVec(3);
  64     double fZwi;
  65
  66     fZwi = m_Matrix.Line1.Column1 * fX
  67          + m_Matrix.Line1.Column2 * fY
  68          + m_Matrix.Line1.Column3 * fZ
  69          + m_Matrix.Line1.Column4;
  70     aNewVec[0] = fZwi;
  71
  72     fZwi = m_Matrix.Line2.Column1 * fX
  73          + m_Matrix.Line2.Column2 * fY
  74          + m_Matrix.Line2.Column3 * fZ
  75          + m_Matrix.Line2.Column4;
  76     aNewVec[1] = fZwi;
  77
  78     fZwi = m_Matrix.Line3.Column1 * fX
  79          + m_Matrix.Line3.Column2 * fY
  80          + m_Matrix.Line3.Column3 * fZ
  81          + m_Matrix.Line3.Column4;
  82     aNewVec[2] = fZwi;
  83
  84     fZwi = m_Matrix.Line4.Column1 * fX
  85          + m_Matrix.Line4.Column2 * fY
  86          + m_Matrix.Line4.Column3 * fZ
  87          + m_Matrix.Line4.Column4;
  88     if(fZwi != 1.0 && fZwi != 0.0)
  89     {
  90         aNewVec[0] /= fZwi;
  91         aNewVec[1] /= fZwi;
  92         aNewVec[2] /= fZwi;
  93     }
  94     return aNewVec;
  95 }
  96
  97 sal_Int32 SAL_CALL Linear3DTransformation::getSourceDimension()
  98     throw (RuntimeException)
  99 {
 100     return 3;
 101 }
 102
 103 sal_Int32 SAL_CALL Linear3DTransformation::getTargetDimension()
 104     throw (RuntimeException)
 105 {
 106     return 3;
 107 }
 108
 109
 110 }  // namespace chart