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diff --git a/include/drawinglayer/primitive3d/sdrsphereprimitive3d.hxx b/include/drawinglayer/primitive3d/sdrsphereprimitive3d.hxx
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+++ b/include/drawinglayer/primitive3d/sdrsphereprimitive3d.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 INCLUDED_DRAWINGLAYER_PRIMITIVE3D_SDRSPHEREPRIMITIVE3D_HXX
+#define INCLUDED_DRAWINGLAYER_PRIMITIVE3D_SDRSPHEREPRIMITIVE3D_HXX
+
+#include <drawinglayer/drawinglayerdllapi.h>
+
+#include <drawinglayer/primitive3d/sdrprimitive3d.hxx>
+
+
+namespace drawinglayer::primitive3d
+    {
+        /** SdrSpherePrimitive3D class
+
+            This 3D primitive expands the SdrPrimitive3D to a 3D sphere definition.
+            The sphere is implicitly in unit coordinates and the given transformation
+            defines its geometry in space.
+         */
+        class DRAWINGLAYER_DLLPUBLIC SdrSpherePrimitive3D final : public SdrPrimitive3D
+        {
+        private:
+            /// additional geometry definitions
+            sal_uInt32                                  mnHorizontalSegments;
+            sal_uInt32                                  mnVerticalSegments;
+
+            /// local decomposition.
+            virtual Primitive3DContainer create3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const override;
+
+        public:
+            /// constructor
+            SdrSpherePrimitive3D(
+                const basegfx::B3DHomMatrix& rTransform,
+                const basegfx::B2DVector& rTextureSize,
+                const attribute::SdrLineFillShadowAttribute3D& rSdrLFSAttribute,
+                const attribute::Sdr3DObjectAttribute& rSdr3DObjectAttribute,
+                sal_uInt32 nHorizontalSegments,
+                sal_uInt32 nVerticalSegments);
+
+            /// data read access
+            sal_uInt32 getHorizontalSegments() const { return mnHorizontalSegments; }
+            sal_uInt32 getVerticalSegments() const { return mnVerticalSegments; }
+
+            /// compare operator
+            virtual bool operator==(const BasePrimitive3D& rPrimitive) const override;
+
+            /// get range
+            virtual basegfx::B3DRange getB3DRange(const geometry::ViewInformation3D& rViewInformation) const override;
+
+            /// provide unique ID
+            DeclPrimitive3DIDBlock()
+        };
+
+} // end of namespace drawinglayer::primitive3d
+
+
+#endif //INCLUDED_DRAWINGLAYER_PRIMITIVE3D_SDRSPHEREPRIMITIVE3D_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */