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FinalMeshItemsT.hh
/* ========================================================================= *
* *
* OpenMesh *
* Copyright (c) 2001-2022, RWTH-Aachen University *
* Department of Computer Graphics and Multimedia *
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* This file is part of OpenMesh. *
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#ifndef OPENMESH_MESH_ITEMS_HH
#define OPENMESH_MESH_ITEMS_HH
//== INCLUDES =================================================================
#include <OpenMesh/Core/System/config.h>
#include <OpenMesh/Core/Utils/GenProg.hh>
#include <OpenMesh/Core/Utils/vector_traits.hh>
#include <OpenMesh/Core/Mesh/Handles.hh>
//== NAMESPACES ===============================================================
namespace OpenMesh {
//== CLASS DEFINITION =========================================================
template <class Traits, bool IsTriMesh>
struct FinalMeshItemsT
{
//--- build Refs structure ---
#ifndef DOXY_IGNORE_THIS
struct Refs
{
typedef typename Traits::Point Point;
typedef typename vector_traits<Point>::value_type Scalar;
typedef typename Traits::Normal Normal;
typedef typename Traits::Color Color;
typedef typename Traits::TexCoord1D TexCoord1D;
typedef typename Traits::TexCoord2D TexCoord2D;
typedef typename Traits::TexCoord3D TexCoord3D;
typedef typename Traits::TextureIndex TextureIndex;
typedef OpenMesh::VertexHandle VertexHandle;
typedef OpenMesh::FaceHandle FaceHandle;
typedef OpenMesh::EdgeHandle EdgeHandle;
typedef OpenMesh::HalfedgeHandle HalfedgeHandle;
};
#endif
//--- export Refs types ---
typedef typename Refs::Point Point;
typedef typename Refs::Scalar Scalar;
typedef typename Refs::Normal Normal;
typedef typename Refs::Color Color;
typedef typename Refs::TexCoord1D TexCoord1D;
typedef typename Refs::TexCoord2D TexCoord2D;
typedef typename Refs::TexCoord3D TexCoord3D;
typedef typename Refs::TextureIndex TextureIndex;
//--- get attribute bits from Traits ---
enum Attribs
{
VAttribs = Traits::VertexAttributes,
HAttribs = Traits::HalfedgeAttributes,
EAttribs = Traits::EdgeAttributes,
FAttribs = Traits::FaceAttributes
};
//--- merge internal items with traits items ---
/*
typedef typename GenProg::IF<
(bool)(HAttribs & Attributes::PrevHalfedge),
typename InternalItems::Halfedge_with_prev,
typename InternalItems::Halfedge_without_prev
>::Result InternalHalfedge;
*/
//typedef typename InternalItems::Vertex InternalVertex;
//typedef typename InternalItems::template Edge<Halfedge> InternalEdge;
//typedef typename InternalItems::template Face<IsTriMesh> InternalFace;
class ITraits
{};
typedef typename Traits::template VertexT<ITraits, Refs> VertexData;
typedef typename Traits::template HalfedgeT<ITraits, Refs> HalfedgeData;
typedef typename Traits::template EdgeT<ITraits, Refs> EdgeData;
typedef typename Traits::template FaceT<ITraits, Refs> FaceData;
};
#ifndef DOXY_IGNORE_THIS
namespace {
namespace TM {
template<typename Lhs, typename Rhs> struct TypeEquality;
template<typename Lhs> struct TypeEquality<Lhs, Lhs> {};
template<typename LhsTraits, typename RhsTraits> struct ItemsEquality {
TypeEquality<typename LhsTraits::Point, typename RhsTraits::Point> te1;
TypeEquality<typename LhsTraits::Scalar, typename RhsTraits::Scalar> te2;
TypeEquality<typename LhsTraits::Normal, typename RhsTraits::Normal> te3;
TypeEquality<typename LhsTraits::Color, typename RhsTraits::Color> te4;
TypeEquality<typename LhsTraits::TexCoord1D, typename RhsTraits::TexCoord1D> te5;
TypeEquality<typename LhsTraits::TexCoord2D, typename RhsTraits::TexCoord2D> te6;
TypeEquality<typename LhsTraits::TexCoord3D, typename RhsTraits::TexCoord3D> te7;
TypeEquality<typename LhsTraits::TextureIndex, typename RhsTraits::TextureIndex> te8;
};
} /* namespace TM */
} /* anonymous namespace */
#endif
template<typename LhsMeshT, typename RhsMeshT> struct MeshCast;
template<typename LhsMeshT, typename RhsMeshT>
struct MeshCast<LhsMeshT&, RhsMeshT&> {
static LhsMeshT &cast(RhsMeshT &rhs) {
(void)sizeof(TM::ItemsEquality<typename LhsMeshT::MeshItemsT, typename RhsMeshT::MeshItemsT>);
(void)sizeof(TM::TypeEquality<typename LhsMeshT::ConnectivityT, typename RhsMeshT::ConnectivityT>);
return reinterpret_cast<LhsMeshT&>(rhs);
}
};
template<typename LhsMeshT, typename RhsMeshT>
struct MeshCast<const LhsMeshT&, const RhsMeshT&> {
static const LhsMeshT &cast(const RhsMeshT &rhs) {
(void)sizeof(TM::ItemsEquality<typename LhsMeshT::MeshItemsT, typename RhsMeshT::MeshItemsT>);
(void)sizeof(TM::TypeEquality<typename LhsMeshT::ConnectivityT, typename RhsMeshT::ConnectivityT>);
return reinterpret_cast<const LhsMeshT&>(rhs);
}
};
template<typename LhsMeshT, typename RhsMeshT>
struct MeshCast<LhsMeshT*, RhsMeshT*> {
static LhsMeshT *cast(RhsMeshT *rhs) {
(void)sizeof(TM::ItemsEquality<typename LhsMeshT::MeshItemsT, typename RhsMeshT::MeshItemsT>);
(void)sizeof(TM::TypeEquality<typename LhsMeshT::ConnectivityT, typename RhsMeshT::ConnectivityT>);
return reinterpret_cast<LhsMeshT*>(rhs);
}
};
template<typename LhsMeshT, typename RhsMeshT>
struct MeshCast<const LhsMeshT*, const RhsMeshT*> {
static const LhsMeshT *cast(const RhsMeshT *rhs) {
(void)sizeof(TM::ItemsEquality<typename LhsMeshT::MeshItemsT, typename RhsMeshT::MeshItemsT>);
(void)sizeof(TM::TypeEquality<typename LhsMeshT::ConnectivityT, typename RhsMeshT::ConnectivityT>);
return reinterpret_cast<const LhsMeshT*>(rhs);
}
};
//=============================================================================
} // namespace OpenMesh
//=============================================================================
#endif // OPENMESH_MESH_ITEMS_HH defined
//=============================================================================
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition MeshItems.hh:59
OpenMesh::FinalMeshItemsT
Definition of the mesh entities (items).
Definition FinalMeshItemsT.hh:68
OpenMesh::FinalMeshItemsT::ITraits
Definition FinalMeshItemsT.hh:120
OpenMesh::MeshCast
Cast a mesh with different but identical traits into each other.
Definition FinalMeshItemsT.hh:178
OpenMesh::VertexHandle
Handle for a vertex entity.
Definition Handles.hh:121
OpenMesh::HalfedgeHandle
Handle for a halfedge entity.
Definition Handles.hh:128
OpenMesh::EdgeHandle
Handle for a edge entity.
Definition Handles.hh:135
OpenMesh::FaceHandle
Handle for a face entity.
Definition Handles.hh:142
OpenMesh::vector_traits::value_type
T::value_type value_type
Type of the scalar value.
Definition vector_traits.hh:94