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 using ::com::sun::star::uno::RuntimeException;
  27
  28 namespace chart
  29 {
  30
  31     Linear3DTransformation::Linear3DTransformation( const drawing::HomogenMatrix& rHomMatrix, bool bSwapXAndY )
  32     : m_Matrix(rHomMatrix)
  33     , m_bSwapXAndY(bSwapXAndY)
  34 {}
  35
  36 Linear3DTransformation::~Linear3DTransformation()
  37 {}
  38
  39 // ____ XTransformation ____
  40 Sequence< double > SAL_CALL Linear3DTransformation::transform(
  41                         const Sequence< double >& rSourceValues )
  42     throw (RuntimeException,
  43            lang::IllegalArgumentException, std::exception)
  44 {
  45     double fX = rSourceValues[0];
  46     double fY = rSourceValues[1];
  47     double fZ = rSourceValues[2];
  48     if(m_bSwapXAndY)
  49         std::swap(fX,fY);
  50     Sequence< double > aNewVec(3);
  51     double fZwi;
  52
  53     fZwi = m_Matrix.Line1.Column1 * fX
  54          + m_Matrix.Line1.Column2 * fY
  55          + m_Matrix.Line1.Column3 * fZ
  56          + m_Matrix.Line1.Column4;
  57     aNewVec[0] = fZwi;
  58
  59     fZwi = m_Matrix.Line2.Column1 * fX
  60          + m_Matrix.Line2.Column2 * fY
  61          + m_Matrix.Line2.Column3 * fZ
  62          + m_Matrix.Line2.Column4;
  63     aNewVec[1] = fZwi;
  64
  65     fZwi = m_Matrix.Line3.Column1 * fX
  66          + m_Matrix.Line3.Column2 * fY
  67          + m_Matrix.Line3.Column3 * fZ
  68          + m_Matrix.Line3.Column4;
  69     aNewVec[2] = fZwi;
  70
  71     fZwi = m_Matrix.Line4.Column1 * fX
  72          + m_Matrix.Line4.Column2 * fY
  73          + m_Matrix.Line4.Column3 * fZ
  74          + m_Matrix.Line4.Column4;
  75     if(fZwi != 1.0 && fZwi != 0.0)
  76     {
  77         aNewVec[0] /= fZwi;
  78         aNewVec[1] /= fZwi;
  79         aNewVec[2] /= fZwi;
  80     }
  81     return aNewVec;
  82 }
  83
  84 sal_Int32 SAL_CALL Linear3DTransformation::getSourceDimension()
  85     throw (RuntimeException, std::exception)
  86 {
  87     return 3;
  88 }
  89
  90 sal_Int32 SAL_CALL Linear3DTransformation::getTargetDimension()
  91     throw (RuntimeException, std::exception)
  92 {
  93     return 3;
  94 }
  95
  96 }  // namespace chart
  97
  98 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */