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diff --git a/chart2/source/view/main/Linear3DTransformation.cxx b/chart2/source/view/main/Linear3DTransformation.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 <Linear3DTransformation.hxx>
+
+using namespace ::com::sun::star;
+
+using ::com::sun::star::uno::Sequence;
+
+namespace chart
+{
+
+    Linear3DTransformation::Linear3DTransformation( const drawing::HomogenMatrix& rHomMatrix, bool bSwapXAndY )
+    : m_Matrix(rHomMatrix)
+    , m_bSwapXAndY(bSwapXAndY)
+{}
+
+Linear3DTransformation::~Linear3DTransformation()
+{}
+
+// ____ XTransformation2 ____
+css::drawing::Position3D Linear3DTransformation::transform(
+                        const Sequence< double >& rSourceValues ) const
+{
+    double fX = rSourceValues[0];
+    double fY = rSourceValues[1];
+    double fZ = rSourceValues[2];
+    if(m_bSwapXAndY)
+        std::swap(fX,fY);
+    css::drawing::Position3D aNewVec;
+    double fZwi;
+
+    fZwi = m_Matrix.Line1.Column1 * fX
+         + m_Matrix.Line1.Column2 * fY
+         + m_Matrix.Line1.Column3 * fZ
+         + m_Matrix.Line1.Column4;
+    aNewVec.PositionX = fZwi;
+
+    fZwi = m_Matrix.Line2.Column1 * fX
+         + m_Matrix.Line2.Column2 * fY
+         + m_Matrix.Line2.Column3 * fZ
+         + m_Matrix.Line2.Column4;
+    aNewVec.PositionY = fZwi;
+
+    fZwi = m_Matrix.Line3.Column1 * fX
+         + m_Matrix.Line3.Column2 * fY
+         + m_Matrix.Line3.Column3 * fZ
+         + m_Matrix.Line3.Column4;
+    aNewVec.PositionZ = fZwi;
+
+    fZwi = m_Matrix.Line4.Column1 * fX
+         + m_Matrix.Line4.Column2 * fY
+         + m_Matrix.Line4.Column3 * fZ
+         + m_Matrix.Line4.Column4;
+    if(fZwi != 1.0 && fZwi != 0.0)
+    {
+        aNewVec.PositionX /= fZwi;
+        aNewVec.PositionY /= fZwi;
+        aNewVec.PositionZ /= fZwi;
+    }
+    return aNewVec;
+}
+
+css::drawing::Position3D Linear3DTransformation::transform(
+                        const css::drawing::Position3D& rSourceValues ) const
+{
+    double fX = rSourceValues.PositionX;
+    double fY = rSourceValues.PositionY;
+    double fZ = rSourceValues.PositionZ;
+    if(m_bSwapXAndY)
+        std::swap(fX,fY);
+    css::drawing::Position3D aNewVec;
+    double fZwi;
+
+    fZwi = m_Matrix.Line1.Column1 * fX
+         + m_Matrix.Line1.Column2 * fY
+         + m_Matrix.Line1.Column3 * fZ
+         + m_Matrix.Line1.Column4;
+    aNewVec.PositionX = fZwi;
+
+    fZwi = m_Matrix.Line2.Column1 * fX
+         + m_Matrix.Line2.Column2 * fY
+         + m_Matrix.Line2.Column3 * fZ
+         + m_Matrix.Line2.Column4;
+    aNewVec.PositionY = fZwi;
+
+    fZwi = m_Matrix.Line3.Column1 * fX
+         + m_Matrix.Line3.Column2 * fY
+         + m_Matrix.Line3.Column3 * fZ
+         + m_Matrix.Line3.Column4;
+    aNewVec.PositionZ = fZwi;
+
+    fZwi = m_Matrix.Line4.Column1 * fX
+         + m_Matrix.Line4.Column2 * fY
+         + m_Matrix.Line4.Column3 * fZ
+         + m_Matrix.Line4.Column4;
+    if(fZwi != 1.0 && fZwi != 0.0)
+    {
+        aNewVec.PositionX /= fZwi;
+        aNewVec.PositionY /= fZwi;
+        aNewVec.PositionZ /= fZwi;
+    }
+    return aNewVec;
+}
+
+}  // namespace chart
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */