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-rw-r--r--basegfx/source/point/b3dpoint.cxx76
1 files changed, 76 insertions, 0 deletions
diff --git a/basegfx/source/point/b3dpoint.cxx b/basegfx/source/point/b3dpoint.cxx
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+++ b/basegfx/source/point/b3dpoint.cxx
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+/* -*- 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: */