CollapseInfoT.hh

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//=============================================================================
//
//  STRUCT CollpaseInfoT
//
//=============================================================================
#ifndef OPENMESH_DECIMATER_COLLAPSEINFOT_HH
#define OPENMESH_DECIMATER_COLLAPSEINFOT_HH

//== INCLUDES =================================================================

//== NAMESPACE ================================================================

namespace OpenMesh {
namespace Decimater {

//== CLASS DEFINITION =========================================================

template<class Mesh>
struct CollapseInfoT {
  public:
    CollapseInfoT(Mesh& _mesh, typename Mesh::HalfedgeHandle _heh);

    Mesh& mesh;

    typename Mesh::HalfedgeHandle v0v1; 
    typename Mesh::HalfedgeHandle v1v0; 
    typename Mesh::VertexHandle v0; 
    typename Mesh::VertexHandle v1; 
    typename Mesh::Point p0; 
    typename Mesh::Point p1; 
    typename Mesh::FaceHandle fl; 
    typename Mesh::FaceHandle fr; 
    typename Mesh::VertexHandle vl; 
    typename Mesh::VertexHandle vr; 


    typename Mesh::HalfedgeHandle vlv1, v0vl, vrv0, v1vr;
};

//-----------------------------------------------------------------------------

template<class Mesh>
inline CollapseInfoT<Mesh>::CollapseInfoT(Mesh& _mesh,
    typename Mesh::HalfedgeHandle _heh) :
    mesh(_mesh), v0v1(_heh), v1v0(_mesh.opposite_halfedge_handle(v0v1)), v0(
        _mesh.to_vertex_handle(v1v0)), v1(_mesh.to_vertex_handle(v0v1)), p0(
        _mesh.point(v0)), p1(_mesh.point(v1)), fl(_mesh.face_handle(v0v1)), fr(
        _mesh.face_handle(v1v0))

{
  // get vl
  if (fl.is_valid()) {
    vlv1 = mesh.next_halfedge_handle(v0v1);
    v0vl = mesh.next_halfedge_handle(vlv1);
    vl = mesh.to_vertex_handle(vlv1);
    vlv1 = mesh.opposite_halfedge_handle(vlv1);
    v0vl = mesh.opposite_halfedge_handle(v0vl);
  }

  // get vr
  if (fr.is_valid()) {
    vrv0 = mesh.next_halfedge_handle(v1v0);
    v1vr = mesh.next_halfedge_handle(vrv0);
    vr = mesh.to_vertex_handle(vrv0);
    vrv0 = mesh.opposite_halfedge_handle(vrv0);
    v1vr = mesh.opposite_halfedge_handle(v1vr);
  }
}

//=============================================================================
}// END_NS_DECIMATER
} // END_NS_OPENMESH
//=============================================================================
#endif // OPENMESH_DECIMATER_COLLAPSEINFOT_HH defined
//=============================================================================