First checkin for OpenMesh 2.0
git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@2 fdac6126-5c0c-442c-9429-916003d36597
This commit is contained in:
Jan Möbius
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Core/Mesh/Traits.hh
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227
Core/Mesh/Traits.hh
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//=============================================================================
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//
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// OpenMesh
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// Copyright (C) 2003 by Computer Graphics Group, RWTH Aachen
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// www.openmesh.org
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//
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//-----------------------------------------------------------------------------
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//
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// License
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//
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// This library is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation, version 2.1.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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//-----------------------------------------------------------------------------
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//
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// $Revision: 3794 $
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// $Date: 2008-11-25 19:25:02 +0100 (Di, 25. Nov 2008) $
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//
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//=============================================================================
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/** \file Core/Mesh/Traits.hh
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This file defines the default traits and some convenience macros.
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*/
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//=============================================================================
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//
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// CLASS Traits
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//
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//=============================================================================
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#ifndef OPENMESH_TRAITS_HH
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#define OPENMESH_TRAITS_HH
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//== INCLUDES =================================================================
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#include <OpenMesh/Core/System/config.h>
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#include <OpenMesh/Core/Geometry/VectorT.hh>
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#include <OpenMesh/Core/Mesh/Attributes.hh>
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#include <OpenMesh/Core/Mesh/Handles.hh>
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//== NAMESPACES ===============================================================
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namespace OpenMesh {
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//== CLASS DEFINITION =========================================================
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/// Macro for defining the vertex attributes. See \ref mesh_type.
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#define VertexAttributes(_i) enum { VertexAttributes = _i }
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/// Macro for defining the halfedge attributes. See \ref mesh_type.
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#define HalfedgeAttributes(_i) enum { HalfedgeAttributes = _i }
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/// Macro for defining the edge attributes. See \ref mesh_type.
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#define EdgeAttributes(_i) enum { EdgeAttributes = _i }
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/// Macro for defining the face attributes. See \ref mesh_type.
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#define FaceAttributes(_i) enum { FaceAttributes = _i }
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/// Macro for defining the vertex traits. See \ref mesh_type.
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#define VertexTraits \
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template <class Base, class Refs> struct VertexT : public Base
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/// Macro for defining the halfedge traits. See \ref mesh_type.
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#define HalfedgeTraits \
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template <class Base, class Refs> struct HalfedgeT : public Base
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/// Macro for defining the edge traits. See \ref mesh_type.
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#define EdgeTraits \
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template <class Base, class Refs> struct EdgeT : public Base
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/// Macro for defining the face traits. See \ref mesh_type.
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#define FaceTraits \
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template <class Base, class Refs> struct FaceT : public Base
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//== CLASS DEFINITION =========================================================
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/** \class DefaultTraits Traits.hh <OpenMesh/Mesh/Traits.hh>
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Base class for all traits. All user traits should be derived from
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this class. You may enrich all basic items by additional
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properties or define one or more of the types \c Point, \c Normal,
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\c TexCoord, or \c Color.
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\see The Mesh docu section on \ref mesh_type.
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\see Traits.hh for a list of macros for traits classes.
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*/
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struct DefaultTraits
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{
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/// The default coordinate type is OpenMesh::Vec3f.
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typedef Vec3f Point;
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/// The default normal type is OpenMesh::Vec3f.
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typedef Vec3f Normal;
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/// The default 1D texture coordinate type is float.
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typedef float TexCoord1D;
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/// The default 2D texture coordinate type is OpenMesh::Vec2f.
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typedef Vec2f TexCoord2D;
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/// The default 3D texture coordinate type is OpenMesh::Vec3f.
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typedef Vec3f TexCoord3D;
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/// The default texture index type
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typedef int TextureIndex;
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/// The default color type is OpenMesh::Vec3uc.
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typedef Vec3uc Color;
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#ifndef DOXY_IGNORE_THIS
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VertexTraits {};
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HalfedgeTraits {};
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EdgeTraits {};
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FaceTraits {};
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#endif
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VertexAttributes(0);
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HalfedgeAttributes(Attributes::PrevHalfedge);
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EdgeAttributes(0);
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FaceAttributes(0);
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};
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//== CLASS DEFINITION =========================================================
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/** Helper class to merge two mesh traits.
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* \internal
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*
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* With the help of this class it's possible to merge two mesh traits.
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* Whereby \c _Traits1 overrides equally named symbols of \c _Traits2.
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*
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* For your convenience use the provided defines \c OM_Merge_Traits
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* and \c OM_Merge_Traits_In_Template instead.
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*
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* \see OM_Merge_Traits, OM_Merge_Traits_In_Template
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*/
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template <class _Traits1, class _Traits2> struct MergeTraits
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{
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#ifndef DOXY_IGNORE_THIS
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struct Result
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{
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// Mipspro needs this (strange) typedef
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typedef _Traits1 T1;
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typedef _Traits2 T2;
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VertexAttributes ( T1::VertexAttributes | T2::VertexAttributes );
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HalfedgeAttributes ( T1::HalfedgeAttributes | T2::HalfedgeAttributes );
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EdgeAttributes ( T1::EdgeAttributes | T2::EdgeAttributes );
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FaceAttributes ( T1::FaceAttributes | T2::FaceAttributes );
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typedef typename T1::Point Point;
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typedef typename T1::Normal Normal;
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typedef typename T1::Color Color;
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typedef typename T1::TexCoord TexCoord;
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template <class Base, class Refs> class VertexT :
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public T1::template VertexT<
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typename T2::template VertexT<Base, Refs>, Refs>
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{};
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template <class Base, class Refs> class HalfedgeT :
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public T1::template HalfedgeT<
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typename T2::template HalfedgeT<Base, Refs>, Refs>
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{};
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template <class Base, class Refs> class EdgeT :
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public T1::template EdgeT<
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typename T2::template EdgeT<Base, Refs>, Refs>
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{};
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template <class Base, class Refs> class FaceT :
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public T1::template FaceT<
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typename T2::template FaceT<Base, Refs>, Refs>
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{};
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};
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#endif
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};
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/**
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Macro for merging two traits classes _S1 and _S2 into one traits class _D.
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Note that in case of ambiguities class _S1 overrides _S2, especially
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the point/normal/color/texcoord type to be used is taken from _S1::Point/
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_S1::Normal/_S1::Color/_S1::TexCoord.
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*/
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#define OM_Merge_Traits(_S1, _S2, _D) \
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typedef OpenMesh::MergeTraits<_S1, _S2>::Result _D;
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/**
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Macro for merging two traits classes _S1 and _S2 into one traits class _D.
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Same as OM_Merge_Traits, but this can be used inside template classes.
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*/
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#define OM_Merge_Traits_In_Template(_S1, _S2, _D) \
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typedef typename OpenMesh::MergeTraits<_S1, _S2>::Result _D;
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//=============================================================================
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} // namespace OpenMesh
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//=============================================================================
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#endif // OPENMESH_TRAITS_HH defined
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//=============================================================================
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