OpenMesh
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>
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;
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 
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:59
@ TextureIndex
Add texture index (faces)
Definition: Attributes.hh:89
@ Normal
Add normals to mesh item (vertices/faces)
Definition: Attributes.hh:82
@ TexCoord2D
Add 2D texture coordinates (vertices, halfedges)
Definition: Attributes.hh:87
@ TexCoord1D
Add 1D texture coordinates (vertices, halfedges)
Definition: Attributes.hh:86
@ TexCoord3D
Add 3D texture coordinates (vertices, halfedges)
Definition: Attributes.hh:88
@ Color
Add colors to mesh item (vertices/faces/edges)
Definition: Attributes.hh:83
Definition of the mesh entities (items).
Definition: FinalMeshItemsT.hh:68
Definition: FinalMeshItemsT.hh:120
Cast a mesh with different but identical traits into each other.
Definition: FinalMeshItemsT.hh:178
Handle for a vertex entity.
Definition: Handles.hh:121
Handle for a halfedge entity.
Definition: Handles.hh:128
Handle for a edge entity.
Definition: Handles.hh:135
Handle for a face entity.
Definition: Handles.hh:142
Helper class providing information about a vector type.
Definition: vector_traits.hh:89
#define VertexAttributes(_i)
Macro for defining the vertex attributes. See Specifying your MyMesh.
Definition: Traits.hh:79
#define HalfedgeAttributes(_i)
Macro for defining the halfedge attributes. See Specifying your MyMesh.
Definition: Traits.hh:82
#define FaceAttributes(_i)
Macro for defining the face attributes. See Specifying your MyMesh.
Definition: Traits.hh:88
#define EdgeAttributes(_i)
Macro for defining the edge attributes. See Specifying your MyMesh.
Definition: Traits.hh:85

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