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Diffstat (limited to 'basegfx/source/point/b3dpoint.cxx')
-rw-r--r-- | basegfx/source/point/b3dpoint.cxx | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/basegfx/source/point/b3dpoint.cxx b/basegfx/source/point/b3dpoint.cxx new file mode 100644 index 000000000..ff70b501e --- /dev/null +++ b/basegfx/source/point/b3dpoint.cxx @@ -0,0 +1,76 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <basegfx/point/b3dpoint.hxx> +#include <basegfx/matrix/b3dhommatrix.hxx> +#include <basegfx/numeric/ftools.hxx> + +namespace basegfx +{ + B3DPoint& B3DPoint::operator*=( const ::basegfx::B3DHomMatrix& rMat ) + { + double fTempX( + rMat.get(0, 0) * mfX + + rMat.get(0, 1) * mfY + + rMat.get(0, 2) * mfZ + + rMat.get(0, 3)); + double fTempY( + rMat.get(1, 0) * mfX + + rMat.get(1, 1) * mfY + + rMat.get(1, 2) * mfZ + + rMat.get(1, 3)); + double fTempZ( + rMat.get(2, 0) * mfX + + rMat.get(2, 1) * mfY + + rMat.get(2, 2) * mfZ + + rMat.get(2, 3)); + + if(!rMat.isLastLineDefault()) + { + const double fOne(1.0); + const double fTempM( + rMat.get(3, 0) * mfX + + rMat.get(3, 1) * mfY + + rMat.get(3, 2) * mfZ + + rMat.get(3, 3)); + + if(!fTools::equalZero(fTempM) && !fTools::equal(fOne, fTempM)) + { + fTempX /= fTempM; + fTempY /= fTempM; + fTempZ /= fTempM; + } + } + + mfX = fTempX; + mfY = fTempY; + mfZ = fTempZ; + + return *this; + } + + B3DPoint operator*( const ::basegfx::B3DHomMatrix& rMat, const B3DPoint& rPoint ) + { + B3DPoint aRes( rPoint ); + aRes *= rMat; + return aRes; + } +} // end of namespace basegfx + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |