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diff --git a/include/basegfx/polygon/b3dpolygon.hxx b/include/basegfx/polygon/b3dpolygon.hxx
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+++ b/include/basegfx/polygon/b3dpolygon.hxx
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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 .
+ */
+
+#ifndef _BGFX_POLYGON_B3DPOLYGON_HXX
+#define _BGFX_POLYGON_B3DPOLYGON_HXX
+
+#include <sal/types.h>
+#include <o3tl/cow_wrapper.hxx>
+#include <basegfx/basegfxdllapi.h>
+
+//////////////////////////////////////////////////////////////////////////////
+// predeclarations
+class ImplB3DPolygon;
+
+namespace basegfx
+{
+    class B3DPolygon;
+    class B3DPoint;
+    class B3DHomMatrix;
+    class B3DVector;
+    class B2DPoint;
+    class B2DHomMatrix;
+    class BColor;
+} // end of namespace basegfx
+
+//////////////////////////////////////////////////////////////////////////////
+
+namespace basegfx
+{
+    class BASEGFX_DLLPUBLIC B3DPolygon
+    {
+    public:
+        typedef o3tl::cow_wrapper< ImplB3DPolygon > ImplType;
+
+    private:
+        // internal data.
+        ImplType                                    mpPolygon;
+
+    public:
+        B3DPolygon();
+        B3DPolygon(const B3DPolygon& rPolygon);
+        ~B3DPolygon();
+
+        // assignment operator
+        B3DPolygon& operator=(const B3DPolygon& rPolygon);
+
+        // compare operators
+        bool operator==(const B3DPolygon& rPolygon) const;
+        bool operator!=(const B3DPolygon& rPolygon) const;
+
+        // member count
+        sal_uInt32 count() const;
+
+        // Coordinate interface
+        B3DPoint getB3DPoint(sal_uInt32 nIndex) const;
+        void setB3DPoint(sal_uInt32 nIndex, const B3DPoint& rValue);
+
+        // Coordinate append
+        void append(const B3DPoint& rPoint, sal_uInt32 nCount = 1);
+
+        // BColor interface
+        BColor getBColor(sal_uInt32 nIndex) const;
+        void setBColor(sal_uInt32 nIndex, const BColor& rValue);
+        bool areBColorsUsed() const;
+        void clearBColors();
+
+        // Normals interface
+        B3DVector getNormal() const; // plane normal
+        B3DVector getNormal(sal_uInt32 nIndex) const; // normal in each point
+        void setNormal(sal_uInt32 nIndex, const B3DVector& rValue);
+        void transformNormals(const B3DHomMatrix& rMatrix);
+        bool areNormalsUsed() const;
+        void clearNormals();
+
+        // TextureCoordinate interface
+        B2DPoint getTextureCoordinate(sal_uInt32 nIndex) const;
+        void setTextureCoordinate(sal_uInt32 nIndex, const B2DPoint& rValue);
+        void transformTextureCoordiantes(const B2DHomMatrix& rMatrix);
+        bool areTextureCoordinatesUsed() const;
+        void clearTextureCoordinates();
+
+        // append other 2D polygons
+        void append(const B3DPolygon& rPoly, sal_uInt32 nIndex = 0, sal_uInt32 nCount = 0);
+
+        // remove
+        void remove(sal_uInt32 nIndex, sal_uInt32 nCount = 1);
+
+        // clear all points
+        void clear();
+
+        // closed state
+        bool isClosed() const;
+        void setClosed(bool bNew);
+
+        // flip polygon direction
+        void flip();
+
+        // test if Polygon has double points
+        bool hasDoublePoints() const;
+
+        // remove double points, at the begin/end and follow-ups, too
+        void removeDoublePoints();
+
+        // apply transformation given in matrix form to the polygon
+        void transform(const B3DHomMatrix& rMatrix);
+    };
+} // end of namespace basegfx
+
+//////////////////////////////////////////////////////////////////////////////
+
+
+#endif /* _BGFX_POLYGON_B3DPOLYGON_HXX */
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */