Line data    Source code

       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 <basegfx/point/b3ipoint.hxx>
      21             : #include <basegfx/matrix/b3dhommatrix.hxx>
      22             : #include <basegfx/numeric/ftools.hxx>
      23             : 
      24             : namespace basegfx
      25             : {
      26           0 :     B3IPoint& B3IPoint::operator*=( const ::basegfx::B3DHomMatrix& rMat )
      27             :     {
      28             :         double fTempX(
      29           0 :             rMat.get(0, 0) * mnX +
      30           0 :             rMat.get(0, 1) * mnY +
      31           0 :             rMat.get(0, 2) * mnZ +
      32           0 :             rMat.get(0, 3));
      33             :         double fTempY(
      34           0 :             rMat.get(1, 0) * mnX +
      35           0 :             rMat.get(1, 1) * mnY +
      36           0 :             rMat.get(1, 2) * mnZ +
      37           0 :             rMat.get(1, 3));
      38             :         double fTempZ(
      39           0 :             rMat.get(2, 0) * mnX +
      40           0 :             rMat.get(2, 1) * mnY +
      41           0 :             rMat.get(2, 2) * mnZ +
      42           0 :             rMat.get(2, 3));
      43             : 
      44           0 :         if(!rMat.isLastLineDefault())
      45             :         {
      46           0 :             const double fOne(1.0);
      47             :             const double fTempM(
      48           0 :                 rMat.get(3, 0) * mnX +
      49           0 :                 rMat.get(3, 1) * mnY +
      50           0 :                 rMat.get(3, 2) * mnZ +
      51           0 :                 rMat.get(3, 3));
      52             : 
      53           0 :             if(!fTools::equalZero(fTempM) && !fTools::equal(fOne, fTempM))
      54             :             {
      55           0 :                 fTempX /= fTempM;
      56           0 :                 fTempY /= fTempM;
      57           0 :                 fTempZ /= fTempM;
      58             :             }
      59             :         }
      60             : 
      61           0 :         mnX = fround(fTempX);
      62           0 :         mnY = fround(fTempY);
      63           0 :         mnZ = fround(fTempZ);
      64             : 
      65           0 :         return *this;
      66             :     }
      67             : } // end of namespace basegfx
      68             : 
      69             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */