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diff --git a/svx/inc/sdr/contact/viewcontactofe3d.hxx b/svx/inc/sdr/contact/viewcontactofe3d.hxx
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+++ b/svx/inc/sdr/contact/viewcontactofe3d.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 <svx/obj3d.hxx>
+#include <svx/sdr/contact/viewcontactofsdrobj.hxx>
+#include <drawinglayer/primitive3d/baseprimitive3d.hxx>
+
+namespace drawinglayer::attribute { class SdrLineAttribute; }
+namespace basegfx {
+    class BColor;
+    class B3DHomMatrix;
+}
+
+namespace sdr::contact {
+
+class ViewContactOfE3dScene;
+
+class ViewContactOfE3d : public ViewContactOfSdrObj
+{
+protected:
+    // Create an Object-Specific ViewObjectContact, set ViewContact and
+    // ObjectContact. Always needs to return something.
+    virtual ViewObjectContact& CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact) override;
+
+public:
+    // basic constructor, used from E3dObject.
+    explicit ViewContactOfE3d(E3dObject& rObj);
+    virtual ~ViewContactOfE3d() override;
+
+    // access to E3dObject
+    const E3dObject& GetE3dObject() const
+    {
+        return static_cast<const E3dObject&>(GetSdrObject());
+    }
+
+    // public helpers
+    drawinglayer::primitive2d::Primitive2DContainer impCreateWithGivenPrimitive3DContainer(
+        const drawinglayer::primitive3d::Primitive3DContainer& rxContent3D) const;
+
+
+    // primitive stuff
+
+    // Primitive3DContainer of the ViewContact. This contains all necessary information
+    // for the graphical visualisation and needs to be supported by all 3D VCs which
+    // can be visualized. It does NOT contain the object transformation to be able to
+    // buffer for all possible usages
+    drawinglayer::primitive3d::Primitive3DContainer              mxViewIndependentPrimitive3DContainer;
+
+protected:
+    // This method is responsible for creating the graphical visualisation data which is
+    // stored in mxViewIndependentPrimitive3DContainer, but without object transformation
+    virtual drawinglayer::primitive3d::Primitive3DContainer createViewIndependentPrimitive3DContainer() const = 0;
+
+    // This method is responsible for creating the graphical visualisation data derived ONLY from
+    // the model data. The default implementation will try to create a 3D to 2D embedding (will work
+    // when scene is known) which can then be used for 2D processing concerning ranges
+    virtual drawinglayer::primitive2d::Primitive2DContainer createViewIndependentPrimitive2DSequence() const override;
+
+public:
+    // access to the local primitive without the object's local 3D transform. This is e.g. needed
+    // to get the not-yet transformed BoundVolume for e.g. interactions
+    drawinglayer::primitive3d::Primitive3DContainer const & getVIP3DSWithoutObjectTransform() const;
+
+    // access to the local primitive. This will ensure that the list is
+    // current in comparing the local list content with a fresh created incarnation. It will
+    // use getVIP3DSWithoutObjectTransform and embed to 3d transform primitive when object's
+    // local 3d transform is used
+    drawinglayer::primitive3d::Primitive3DContainer getViewIndependentPrimitive3DContainer() const;
+};
+
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */