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FinalMeshItemsT.hh
1 /* ========================================================================= *
2 * *
3 * OpenMesh *
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5 * Department of Computer Graphics and Multimedia *
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40 * ========================================================================= */
41
42 /*===========================================================================*\
43 * *
44 * $Revision$ *
45 * $Date$ *
46 * *
47 \*===========================================================================*/
48
49 #ifndef OPENMESH_MESH_ITEMS_HH
50 #define OPENMESH_MESH_ITEMS_HH
51
52
53 //== INCLUDES =================================================================
54
55
56 #include <OpenMesh/Core/System/config.h>
57 #include <OpenMesh/Core/Utils/GenProg.hh>
58 #include <OpenMesh/Core/Utils/vector_traits.hh>
59 #include <OpenMesh/Core/Mesh/Handles.hh>
60
61
62 //== NAMESPACES ===============================================================
63
64
65 namespace OpenMesh {
66
67
68 //== CLASS DEFINITION =========================================================
69
71 template <class Traits, bool IsTriMesh>
72 struct FinalMeshItemsT
73 {
74 //--- build Refs structure ---
75 #ifndef DOXY_IGNORE_THIS
76 struct Refs
77 {
78 typedef typename Traits::Point Point;
79 typedef typename vector_traits<Point>::value_type Scalar;
80
81 typedef typename Traits::Normal Normal;
82 typedef typename Traits::Color Color;
83 typedef typename Traits::TexCoord1D TexCoord1D;
84 typedef typename Traits::TexCoord2D TexCoord2D;
85 typedef typename Traits::TexCoord3D TexCoord3D;
86 typedef typename Traits::TextureIndex TextureIndex;
87 typedef OpenMesh::VertexHandle VertexHandle;
88 typedef OpenMesh::FaceHandle FaceHandle;
89 typedef OpenMesh::EdgeHandle EdgeHandle;
90 typedef OpenMesh::HalfedgeHandle HalfedgeHandle;
91 };
92 #endif
93 //--- export Refs types ---
94 typedef typename Refs::Point Point;
95 typedef typename Refs::Scalar Scalar;
96 typedef typename Refs::Normal Normal;
97 typedef typename Refs::Color Color;
98 typedef typename Refs::TexCoord1D TexCoord1D;
99 typedef typename Refs::TexCoord2D TexCoord2D;
100 typedef typename Refs::TexCoord3D TexCoord3D;
101 typedef typename Refs::TextureIndex TextureIndex;
102
103 //--- get attribute bits from Traits ---
104 enum Attribs
105 {
106 VAttribs = Traits::VertexAttributes,
107 HAttribs = Traits::HalfedgeAttributes,
108 EAttribs = Traits::EdgeAttributes,
109 FAttribs = Traits::FaceAttributes
110 };
111 //--- merge internal items with traits items ---
112
113
114 /*
115 typedef typename GenProg::IF<
116 (bool)(HAttribs & Attributes::PrevHalfedge),
117 typename InternalItems::Halfedge_with_prev,
118 typename InternalItems::Halfedge_without_prev
119 >::Result InternalHalfedge;
120 */
121 //typedef typename InternalItems::Vertex InternalVertex;
122 //typedef typename InternalItems::template Edge<Halfedge> InternalEdge;
123 //typedef typename InternalItems::template Face<IsTriMesh> InternalFace;
124 class ITraits
125 {};
126
127 typedef typename Traits::template VertexT<ITraits, Refs> VertexData;
128 typedef typename Traits::template HalfedgeT<ITraits, Refs> HalfedgeData;
129 typedef typename Traits::template EdgeT<ITraits, Refs> EdgeData;
130 typedef typename Traits::template FaceT<ITraits, Refs> FaceData;
131 };
132
133
134 #ifndef DOXY_IGNORE_THIS
135 namespace {
136 namespace TM {
137 template<typename Lhs, typename Rhs> struct TypeEquality;
138 template<typename Lhs> struct TypeEquality<Lhs, Lhs> {};
139
140 template<typename LhsTraits, typename RhsTraits> struct ItemsEquality {
141 TypeEquality<typename LhsTraits::Point, typename RhsTraits::Point> te1;
142 TypeEquality<typename LhsTraits::Scalar, typename RhsTraits::Scalar> te2;
143 TypeEquality<typename LhsTraits::Normal, typename RhsTraits::Normal> te3;
144 TypeEquality<typename LhsTraits::Color, typename RhsTraits::Color> te4;
145 TypeEquality<typename LhsTraits::TexCoord1D, typename RhsTraits::TexCoord1D> te5;
146 TypeEquality<typename LhsTraits::TexCoord2D, typename RhsTraits::TexCoord2D> te6;
147 TypeEquality<typename LhsTraits::TexCoord3D, typename RhsTraits::TexCoord3D> te7;
148 TypeEquality<typename LhsTraits::TextureIndex, typename RhsTraits::TextureIndex> te8;
149 };
150
151 } /* namespace TM */
152 } /* anonymous namespace */
153 #endif
154
183 template<typename LhsMeshT, typename RhsMeshT> struct MeshCast;
184
185 template<typename LhsMeshT, typename RhsMeshT>
186 struct MeshCast<LhsMeshT&, RhsMeshT&> {
187 static LhsMeshT &cast(RhsMeshT &rhs) {
188 (void)sizeof(TM::ItemsEquality<typename LhsMeshT::MeshItemsT, typename RhsMeshT::MeshItemsT>);
189 (void)sizeof(TM::TypeEquality<typename LhsMeshT::ConnectivityT, typename RhsMeshT::ConnectivityT>);
190 return reinterpret_cast<LhsMeshT&>(rhs);
191 }
192 };
193
194 template<typename LhsMeshT, typename RhsMeshT>
195 struct MeshCast<const LhsMeshT&, const RhsMeshT&> {
196 static const LhsMeshT &cast(const RhsMeshT &rhs) {
197 (void)sizeof(TM::ItemsEquality<typename LhsMeshT::MeshItemsT, typename RhsMeshT::MeshItemsT>);
198 (void)sizeof(TM::TypeEquality<typename LhsMeshT::ConnectivityT, typename RhsMeshT::ConnectivityT>);
199 return reinterpret_cast<const LhsMeshT&>(rhs);
200 }
201 };
202
203 template<typename LhsMeshT, typename RhsMeshT>
204 struct MeshCast<LhsMeshT*, RhsMeshT*> {
205 static LhsMeshT *cast(RhsMeshT *rhs) {
206 (void)sizeof(TM::ItemsEquality<typename LhsMeshT::MeshItemsT, typename RhsMeshT::MeshItemsT>);
207 (void)sizeof(TM::TypeEquality<typename LhsMeshT::ConnectivityT, typename RhsMeshT::ConnectivityT>);
208 return reinterpret_cast<LhsMeshT*>(rhs);
209 }
210 };
211
212 template<typename LhsMeshT, typename RhsMeshT>
213 struct MeshCast<const LhsMeshT*, const RhsMeshT*> {
214 static const LhsMeshT *cast(const RhsMeshT *rhs) {
215 (void)sizeof(TM::ItemsEquality<typename LhsMeshT::MeshItemsT, typename RhsMeshT::MeshItemsT>);
216 (void)sizeof(TM::TypeEquality<typename LhsMeshT::ConnectivityT, typename RhsMeshT::ConnectivityT>);
217 return reinterpret_cast<const LhsMeshT*>(rhs);
218 }
219 };
220
221
222 //=============================================================================
223 } // namespace OpenMesh
224 //=============================================================================
225 #endif // OPENMESH_MESH_ITEMS_HH defined
226 //=============================================================================
227
OpenMesh::Attributes::Normal
Add normals to mesh item (vertices/faces)
Definition: Attributes.hh:87
OpenMesh::Attributes::Color
Add colors to mesh item (vertices/faces/edges)
Definition: Attributes.hh:88
OpenMesh::FinalMeshItemsT
Definition of the mesh entities (items).
Definition: FinalMeshItemsT.hh:72
OpenMesh::Attributes::TexCoord1D
Add 1D texture coordinates (vertices, halfedges)
Definition: Attributes.hh:91
EdgeAttributes
#define EdgeAttributes(_i)
Macro for defining the edge attributes. See Specifying your MyMesh.
Definition: Traits.hh:90
OpenMesh::FinalMeshItemsT::ITraits
Definition: FinalMeshItemsT.hh:124
HalfedgeAttributes
#define HalfedgeAttributes(_i)
Macro for defining the halfedge attributes. See Specifying your MyMesh.
Definition: Traits.hh:87
OpenMesh::Attributes::TexCoord2D
Add 2D texture coordinates (vertices, halfedges)
Definition: Attributes.hh:92
OpenMesh::VertexHandle
Handle for a vertex entity.
Definition: Handles.hh:123
OpenMesh::vector_traits
Helper class providing information about a vector type.
Definition: vector_traits.hh:93
FaceAttributes
#define FaceAttributes(_i)
Macro for defining the face attributes. See Specifying your MyMesh.
Definition: Traits.hh:93
OpenMesh::EdgeHandle
Handle for a edge entity.
Definition: Handles.hh:137
OpenMesh::MeshCast
Cast a mesh with different but identical traits into each other.
Definition: FinalMeshItemsT.hh:183
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:64
VertexAttributes
#define VertexAttributes(_i)
Macro for defining the vertex attributes. See Specifying your MyMesh.
Definition: Traits.hh:84
OpenMesh::Attributes::TexCoord3D
Add 3D texture coordinates (vertices, halfedges)
Definition: Attributes.hh:93
OpenMesh::HalfedgeHandle
Handle for a halfedge entity.
Definition: Handles.hh:130
OpenMesh::Attributes::TextureIndex
Add texture index (faces)
Definition: Attributes.hh:94
OpenMesh::FaceHandle
Handle for a face entity.
Definition: Handles.hh:144