chart2/source/view/main/Linear3DTransformation.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <Linear3DTransformation.hxx>
  21
  22 using namespace ::com::sun::star;
  23
  24 using ::com::sun::star::uno::Sequence;
  25
  26 namespace chart
  27 {
  28
  29     Linear3DTransformation::Linear3DTransformation( const drawing::HomogenMatrix& rHomMatrix, bool bSwapXAndY )
  30     : m_Matrix(rHomMatrix)
  31     , m_bSwapXAndY(bSwapXAndY)
  32 {}
  33
  34 Linear3DTransformation::~Linear3DTransformation()
  35 {}
  36
  37 // ____ XTransformation2 ____
  38 css::drawing::Position3D Linear3DTransformation::transform(
  39                         const Sequence< double >& rSourceValues ) const
  40 {
  41     double fX = rSourceValues[0];
  42     double fY = rSourceValues[1];
  43     double fZ = rSourceValues[2];
  44     if(m_bSwapXAndY)
  45         std::swap(fX,fY);
  46     css::drawing::Position3D aNewVec;
  47     double fZwi;
  48
  49     fZwi = m_Matrix.Line1.Column1 * fX
  50          + m_Matrix.Line1.Column2 * fY
  51          + m_Matrix.Line1.Column3 * fZ
  52          + m_Matrix.Line1.Column4;
  53     aNewVec.PositionX = fZwi;
  54
  55     fZwi = m_Matrix.Line2.Column1 * fX
  56          + m_Matrix.Line2.Column2 * fY
  57          + m_Matrix.Line2.Column3 * fZ
  58          + m_Matrix.Line2.Column4;
  59     aNewVec.PositionY = fZwi;
  60
  61     fZwi = m_Matrix.Line3.Column1 * fX
  62          + m_Matrix.Line3.Column2 * fY
  63          + m_Matrix.Line3.Column3 * fZ
  64          + m_Matrix.Line3.Column4;
  65     aNewVec.PositionZ = fZwi;
  66
  67     fZwi = m_Matrix.Line4.Column1 * fX
  68          + m_Matrix.Line4.Column2 * fY
  69          + m_Matrix.Line4.Column3 * fZ
  70          + m_Matrix.Line4.Column4;
  71     if(fZwi != 1.0 && fZwi != 0.0)
  72     {
  73         aNewVec.PositionX /= fZwi;
  74         aNewVec.PositionY /= fZwi;
  75         aNewVec.PositionZ /= fZwi;
  76     }
  77     return aNewVec;
  78 }
  79
  80 css::drawing::Position3D Linear3DTransformation::transform(
  81                         const css::drawing::Position3D& rSourceValues ) const
  82 {
  83     double fX = rSourceValues.PositionX;
  84     double fY = rSourceValues.PositionY;
  85     double fZ = rSourceValues.PositionZ;
  86     if(m_bSwapXAndY)
  87         std::swap(fX,fY);
  88     css::drawing::Position3D aNewVec;
  89     double fZwi;
  90
  91     fZwi = m_Matrix.Line1.Column1 * fX
  92          + m_Matrix.Line1.Column2 * fY
  93          + m_Matrix.Line1.Column3 * fZ
  94          + m_Matrix.Line1.Column4;
  95     aNewVec.PositionX = fZwi;
  96
  97     fZwi = m_Matrix.Line2.Column1 * fX
  98          + m_Matrix.Line2.Column2 * fY
  99          + m_Matrix.Line2.Column3 * fZ
 100          + m_Matrix.Line2.Column4;
 101     aNewVec.PositionY = fZwi;
 102
 103     fZwi = m_Matrix.Line3.Column1 * fX
 104          + m_Matrix.Line3.Column2 * fY
 105          + m_Matrix.Line3.Column3 * fZ
 106          + m_Matrix.Line3.Column4;
 107     aNewVec.PositionZ = fZwi;
 108
 109     fZwi = m_Matrix.Line4.Column1 * fX
 110          + m_Matrix.Line4.Column2 * fY
 111          + m_Matrix.Line4.Column3 * fZ
 112          + m_Matrix.Line4.Column4;
 113     if(fZwi != 1.0 && fZwi != 0.0)
 114     {
 115         aNewVec.PositionX /= fZwi;
 116         aNewVec.PositionY /= fZwi;
 117         aNewVec.PositionZ /= fZwi;
 118     }
 119     return aNewVec;
 120 }
 121
 122 }  // namespace chart
 123
 124 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */