Developer Documentation

FinalMeshItemsT.hh
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41
42
43
44 #ifndef OPENMESH_MESH_ITEMS_HH
45 #define OPENMESH_MESH_ITEMS_HH
46
47
48 //== INCLUDES =================================================================
49
50
51 #include <OpenMesh/Core/System/config.h>
52 #include <OpenMesh/Core/Utils/GenProg.hh>
53 #include <OpenMesh/Core/Utils/vector_traits.hh>
54 #include <OpenMesh/Core/Mesh/Handles.hh>
55
56
57 //== NAMESPACES ===============================================================
58
59
60 namespace OpenMesh {
61
62
63 //== CLASS DEFINITION =========================================================
64
66 template <class Traits, bool IsTriMesh>
67 struct FinalMeshItemsT
68 {
69 //--- build Refs structure ---
70 #ifndef DOXY_IGNORE_THIS
71 struct Refs
72 {
73 typedef typename Traits::Point Point;
74 typedef typename vector_traits<Point>::value_type Scalar;
75
76 typedef typename Traits::Normal Normal;
77 typedef typename Traits::Color Color;
78 typedef typename Traits::TexCoord1D TexCoord1D;
79 typedef typename Traits::TexCoord2D TexCoord2D;
80 typedef typename Traits::TexCoord3D TexCoord3D;
81 typedef typename Traits::TextureIndex TextureIndex;
82 typedef OpenMesh::VertexHandle VertexHandle;
83 typedef OpenMesh::FaceHandle FaceHandle;
84 typedef OpenMesh::EdgeHandle EdgeHandle;
85 typedef OpenMesh::HalfedgeHandle HalfedgeHandle;
86 };
87 #endif
88 //--- export Refs types ---
89 typedef typename Refs::Point Point;
90 typedef typename Refs::Scalar Scalar;
91 typedef typename Refs::Normal Normal;
92 typedef typename Refs::Color Color;
93 typedef typename Refs::TexCoord1D TexCoord1D;
94 typedef typename Refs::TexCoord2D TexCoord2D;
95 typedef typename Refs::TexCoord3D TexCoord3D;
96 typedef typename Refs::TextureIndex TextureIndex;
97
98 //--- get attribute bits from Traits ---
99 enum Attribs
100 {
101 VAttribs = Traits::VertexAttributes,
102 HAttribs = Traits::HalfedgeAttributes,
103 EAttribs = Traits::EdgeAttributes,
104 FAttribs = Traits::FaceAttributes
105 };
106 //--- merge internal items with traits items ---
107
108
109 /*
110 typedef typename GenProg::IF<
111 (bool)(HAttribs & Attributes::PrevHalfedge),
112 typename InternalItems::Halfedge_with_prev,
113 typename InternalItems::Halfedge_without_prev
114 >::Result InternalHalfedge;
115 */
116 //typedef typename InternalItems::Vertex InternalVertex;
117 //typedef typename InternalItems::template Edge<Halfedge> InternalEdge;
118 //typedef typename InternalItems::template Face<IsTriMesh> InternalFace;
119 class ITraits
120 {};
121
122 typedef typename Traits::template VertexT<ITraits, Refs> VertexData;
123 typedef typename Traits::template HalfedgeT<ITraits, Refs> HalfedgeData;
124 typedef typename Traits::template EdgeT<ITraits, Refs> EdgeData;
125 typedef typename Traits::template FaceT<ITraits, Refs> FaceData;
126 };
127
128
129 #ifndef DOXY_IGNORE_THIS
130 namespace {
131 namespace TM {
132 template<typename Lhs, typename Rhs> struct TypeEquality;
133 template<typename Lhs> struct TypeEquality<Lhs, Lhs> {};
134
135 template<typename LhsTraits, typename RhsTraits> struct ItemsEquality {
136 TypeEquality<typename LhsTraits::Point, typename RhsTraits::Point> te1;
137 TypeEquality<typename LhsTraits::Scalar, typename RhsTraits::Scalar> te2;
138 TypeEquality<typename LhsTraits::Normal, typename RhsTraits::Normal> te3;
139 TypeEquality<typename LhsTraits::Color, typename RhsTraits::Color> te4;
140 TypeEquality<typename LhsTraits::TexCoord1D, typename RhsTraits::TexCoord1D> te5;
141 TypeEquality<typename LhsTraits::TexCoord2D, typename RhsTraits::TexCoord2D> te6;
142 TypeEquality<typename LhsTraits::TexCoord3D, typename RhsTraits::TexCoord3D> te7;
143 TypeEquality<typename LhsTraits::TextureIndex, typename RhsTraits::TextureIndex> te8;
144 };
145
146 } /* namespace TM */
147 } /* anonymous namespace */
148 #endif
149
178 template<typename LhsMeshT, typename RhsMeshT> struct MeshCast;
179
180 template<typename LhsMeshT, typename RhsMeshT>
181 struct MeshCast<LhsMeshT&, RhsMeshT&> {
182 static LhsMeshT &cast(RhsMeshT &rhs) {
183 (void)sizeof(TM::ItemsEquality<typename LhsMeshT::MeshItemsT, typename RhsMeshT::MeshItemsT>);
184 (void)sizeof(TM::TypeEquality<typename LhsMeshT::ConnectivityT, typename RhsMeshT::ConnectivityT>);
185 return reinterpret_cast<LhsMeshT&>(rhs);
186 }
187 };
188
189 template<typename LhsMeshT, typename RhsMeshT>
190 struct MeshCast<const LhsMeshT&, const RhsMeshT&> {
191 static const LhsMeshT &cast(const RhsMeshT &rhs) {
192 (void)sizeof(TM::ItemsEquality<typename LhsMeshT::MeshItemsT, typename RhsMeshT::MeshItemsT>);
193 (void)sizeof(TM::TypeEquality<typename LhsMeshT::ConnectivityT, typename RhsMeshT::ConnectivityT>);
194 return reinterpret_cast<const LhsMeshT&>(rhs);
195 }
196 };
197
198 template<typename LhsMeshT, typename RhsMeshT>
199 struct MeshCast<LhsMeshT*, RhsMeshT*> {
200 static LhsMeshT *cast(RhsMeshT *rhs) {
201 (void)sizeof(TM::ItemsEquality<typename LhsMeshT::MeshItemsT, typename RhsMeshT::MeshItemsT>);
202 (void)sizeof(TM::TypeEquality<typename LhsMeshT::ConnectivityT, typename RhsMeshT::ConnectivityT>);
203 return reinterpret_cast<LhsMeshT*>(rhs);
204 }
205 };
206
207 template<typename LhsMeshT, typename RhsMeshT>
208 struct MeshCast<const LhsMeshT*, const RhsMeshT*> {
209 static const LhsMeshT *cast(const RhsMeshT *rhs) {
210 (void)sizeof(TM::ItemsEquality<typename LhsMeshT::MeshItemsT, typename RhsMeshT::MeshItemsT>);
211 (void)sizeof(TM::TypeEquality<typename LhsMeshT::ConnectivityT, typename RhsMeshT::ConnectivityT>);
212 return reinterpret_cast<const LhsMeshT*>(rhs);
213 }
214 };
215
216
217 //=============================================================================
218 } // namespace OpenMesh
219 //=============================================================================
220 #endif // OPENMESH_MESH_ITEMS_HH defined
221 //=============================================================================
222
OpenMesh::FinalMeshItemsT
Definition of the mesh entities (items).
Definition: FinalMeshItemsT.hh:67
OpenMesh::Attributes::TexCoord1D
Add 1D texture coordinates (vertices, halfedges)
Definition: Attributes.hh:86
OpenMesh::VertexHandle
Handle for a vertex entity.
Definition: Handles.hh:120
OpenMesh::HalfedgeHandle
Handle for a halfedge entity.
Definition: Handles.hh:127
OpenMesh::Attributes::Color
Add colors to mesh item (vertices/faces/edges)
Definition: Attributes.hh:83
OpenMesh::Attributes::TexCoord3D
Add 3D texture coordinates (vertices, halfedges)
Definition: Attributes.hh:88
config.h
OpenMesh::Attributes::TextureIndex
Add texture index (faces)
Definition: Attributes.hh:89
HalfedgeAttributes
#define HalfedgeAttributes(_i)
Macro for defining the halfedge attributes. See Specifying your MyMesh.
Definition: Traits.hh:82
OpenMesh::MeshCast
Cast a mesh with different but identical traits into each other.
Definition: FinalMeshItemsT.hh:178
OpenMesh::FaceHandle
Handle for a face entity.
Definition: Handles.hh:141
OpenMesh::Attributes::TexCoord2D
Add 2D texture coordinates (vertices, halfedges)
Definition: Attributes.hh:87
EdgeAttributes
#define EdgeAttributes(_i)
Macro for defining the edge attributes. See Specifying your MyMesh.
Definition: Traits.hh:85
OpenMesh::vector_traits
Definition: vector_traits.hh:88
OpenMesh::EdgeHandle
Handle for a edge entity.
Definition: Handles.hh:134
OpenMesh::FinalMeshItemsT::ITraits
Definition: FinalMeshItemsT.hh:119
OpenMesh
Definition: MeshItems.hh:59
VertexAttributes
#define VertexAttributes(_i)
Macro for defining the vertex attributes. See Specifying your MyMesh.
Definition: Traits.hh:79
FaceAttributes
#define FaceAttributes(_i)
Macro for defining the face attributes. See Specifying your MyMesh.
Definition: Traits.hh:88