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diff --git a/include/basegfx/polygon/b3dpolypolygontools.hxx b/include/basegfx/polygon/b3dpolypolygontools.hxx
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+++ b/include/basegfx/polygon/b3dpolypolygontools.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 .
+ */
+
+#pragma once
+
+#include <basegfx/numeric/ftools.hxx>
+#include <basegfx/point/b3dpoint.hxx>
+#include <basegfx/basegfxdllapi.h>
+
+namespace com::sun::star::drawing { struct PolyPolygonShape3D; }
+
+namespace basegfx
+{
+    class B3DPolyPolygon;
+    class B3DRange;
+}
+
+namespace basegfx::utils
+{
+        // B3DPolyPolygon tools
+
+        // get size of PolyPolygon. Control vectors are included in that ranges.
+        BASEGFX_DLLPUBLIC B3DRange getRange(const B3DPolyPolygon& rCandidate);
+
+        /** Create a unit 3D line polyPolygon which defines a cube.
+         */
+        BASEGFX_DLLPUBLIC B3DPolyPolygon const & createUnitCubePolyPolygon();
+
+        /** Create a unit 3D fill polyPolygon which defines a cube.
+         */
+        BASEGFX_DLLPUBLIC B3DPolyPolygon const & createUnitCubeFillPolyPolygon();
+
+        /** Create a 3D line polyPolygon from a B3DRange which defines a cube.
+         */
+        BASEGFX_DLLPUBLIC B3DPolyPolygon createCubePolyPolygonFromB3DRange( const B3DRange& rRange);
+
+        /** Create a 3D fill polyPolygon from a B3DRange which defines a cube.
+         */
+        BASEGFX_DLLPUBLIC B3DPolyPolygon createCubeFillPolyPolygonFromB3DRange( const B3DRange& rRange);
+
+        /** Create a unit 3D line polyPolygon which defines a sphere with the given count of hor and ver segments.
+            Result will be centered at (0.0, 0.0, 0.0) and sized [-1.0 .. 1.0] in all dimensions.
+            If nHorSeg == 0 and/or nVerSeg == 0, a default will be calculated to have a step at least each 15 degrees.
+            With VerStart, VerStop and hor range in cartesian may be specified to create a partial sphere only.
+         */
+        BASEGFX_DLLPUBLIC B3DPolyPolygon createUnitSpherePolyPolygon(
+            sal_uInt32 nHorSeg, sal_uInt32 nVerSeg,
+            double fVerStart = F_PI2, double fVerStop = -F_PI2,
+            double fHorStart = 0.0, double fHorStop = F_2PI);
+
+        /** Create a 3D line polyPolygon from a B3DRange which defines a sphere with the given count of hor and ver segments.
+            If nHorSeg == 0 and/or nVerSeg == 0, a default will be calculated to have a step at least each 15 degrees.
+            With VerStart, VerStop and hor range in cartesian may be specified to create a partial sphere only.
+         */
+        BASEGFX_DLLPUBLIC B3DPolyPolygon createSpherePolyPolygonFromB3DRange(
+            const B3DRange& rRange,
+            sal_uInt32 nHorSeg, sal_uInt32 nVerSeg,
+            double fVerStart = F_PI2, double fVerStop = -F_PI2,
+            double fHorStart = 0.0, double fHorStop = F_2PI);
+
+        /** same as createUnitSpherePolyPolygon, but creates filled polygons (closed and oriented)
+            There is one extra, the bool bNormals defines if normals will be set, default is false
+         */
+        BASEGFX_DLLPUBLIC B3DPolyPolygon createUnitSphereFillPolyPolygon(
+            sal_uInt32 nHorSeg, sal_uInt32 nVerSeg,
+            bool bNormals = false,
+            double fVerStart = F_PI2, double fVerStop = -F_PI2,
+            double fHorStart = 0.0, double fHorStop = F_2PI);
+
+        /** same as createSpherePolyPolygonFromB3DRange, but creates filled polygons (closed and oriented)
+            There is one extra, the bool bNormals defines if normals will be set, default is false
+         */
+        BASEGFX_DLLPUBLIC B3DPolyPolygon createSphereFillPolyPolygonFromB3DRange(
+            const B3DRange& rRange,
+            sal_uInt32 nHorSeg, sal_uInt32 nVerSeg,
+            bool bNormals = false,
+            double fVerStart = F_PI2, double fVerStop = -F_PI2,
+            double fHorStart = 0.0, double fHorStop = F_2PI);
+
+        /** Create/replace normals for given 3d geometry with default normals from given center to outside.
+            rCandidate: the 3d geometry to change
+            rCenter:    the center of the 3d geometry
+         */
+        BASEGFX_DLLPUBLIC B3DPolyPolygon applyDefaultNormalsSphere( const B3DPolyPolygon& rCandidate, const B3DPoint& rCenter);
+
+        /** invert normals for given 3d geometry.
+         */
+        BASEGFX_DLLPUBLIC B3DPolyPolygon invertNormals( const B3DPolyPolygon& rCandidate);
+
+        /** Create/replace texture coordinates for given 3d geometry with parallel projected one
+            rRange: the full range of the 3d geometry
+            If bChangeX, x texture coordinate will be recalculated.
+            If bChangeY, y texture coordinate will be recalculated.
+         */
+        BASEGFX_DLLPUBLIC B3DPolyPolygon applyDefaultTextureCoordinatesParallel( const B3DPolyPolygon& rCandidate, const B3DRange& rRange, bool bChangeX = true, bool bChangeY = true);
+
+        /** Create/replace texture coordinates for given 3d geometry with spherical one
+            rCenter: the centre of the used 3d geometry
+            If bChangeX, x texture coordinate will be recalculated.
+            If bChangeY, y texture coordinate will be recalculated.
+         */
+        BASEGFX_DLLPUBLIC B3DPolyPolygon applyDefaultTextureCoordinatesSphere( const B3DPolyPolygon& rCandidate, const B3DPoint& rCenter, bool bChangeX = true, bool bChangeY = true);
+
+        // isInside test for B3DPoint. On border is not inside.
+        // It is assumed that the orientations of the given polygon are correct.
+        BASEGFX_DLLPUBLIC bool isInside(const B3DPolyPolygon& rCandidate, const B3DPoint& rPoint);
+
+        /// converters for css::drawing::PolyPolygonShape3D
+        BASEGFX_DLLPUBLIC B3DPolyPolygon UnoPolyPolygonShape3DToB3DPolyPolygon(
+            const css::drawing::PolyPolygonShape3D& rPolyPolygonShape3DSource);
+        BASEGFX_DLLPUBLIC void B3DPolyPolygonToUnoPolyPolygonShape3D(
+            const B3DPolyPolygon& rPolyPolygonSource,
+            css::drawing::PolyPolygonShape3D& rPolyPolygonShape3DRetval);
+
+} // end of namespace basegfx::utils
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */