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 #include <algorithm>
  22
  23 using namespace ::com::sun::star;
  24
  25 using ::com::sun::star::uno::Sequence;
  26
  27 namespace chart
  28 {
  29
  30     Linear3DTransformation::Linear3DTransformation( const drawing::HomogenMatrix& rHomMatrix, bool bSwapXAndY )
  31     : m_Matrix(rHomMatrix)
  32     , m_bSwapXAndY(bSwapXAndY)
  33 {}
  34
  35 Linear3DTransformation::~Linear3DTransformation()
  36 {}
  37
  38 // ____ XTransformation ____
  39 Sequence< double > SAL_CALL Linear3DTransformation::transform(
  40                         const Sequence< double >& rSourceValues )
  41 {
  42     double fX = rSourceValues[0];
  43     double fY = rSourceValues[1];
  44     double fZ = rSourceValues[2];
  45     if(m_bSwapXAndY)
  46         std::swap(fX,fY);
  47     Sequence< double > aNewVec(3);
  48     double fZwi;
  49
  50     fZwi = m_Matrix.Line1.Column1 * fX
  51          + m_Matrix.Line1.Column2 * fY
  52          + m_Matrix.Line1.Column3 * fZ
  53          + m_Matrix.Line1.Column4;
  54     aNewVec[0] = fZwi;
  55
  56     fZwi = m_Matrix.Line2.Column1 * fX
  57          + m_Matrix.Line2.Column2 * fY
  58          + m_Matrix.Line2.Column3 * fZ
  59          + m_Matrix.Line2.Column4;
  60     aNewVec[1] = fZwi;
  61
  62     fZwi = m_Matrix.Line3.Column1 * fX
  63          + m_Matrix.Line3.Column2 * fY
  64          + m_Matrix.Line3.Column3 * fZ
  65          + m_Matrix.Line3.Column4;
  66     aNewVec[2] = fZwi;
  67
  68     fZwi = m_Matrix.Line4.Column1 * fX
  69          + m_Matrix.Line4.Column2 * fY
  70          + m_Matrix.Line4.Column3 * fZ
  71          + m_Matrix.Line4.Column4;
  72     if(fZwi != 1.0 && fZwi != 0.0)
  73     {
  74         aNewVec[0] /= fZwi;
  75         aNewVec[1] /= fZwi;
  76         aNewVec[2] /= fZwi;
  77     }
  78     return aNewVec;
  79 }
  80
  81 sal_Int32 SAL_CALL Linear3DTransformation::getSourceDimension()
  82 {
  83     return 3;
  84 }
  85
  86 sal_Int32 SAL_CALL Linear3DTransformation::getTargetDimension()
  87 {
  88     return 3;
  89 }
  90
  91 }  // namespace chart
  92
  93 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */