TriMeshT.hh

/* ========================================================================= *
 *                                                                           *
 *                               OpenMesh                                    *
 *           Copyright (c) 2001-2015, RWTH-Aachen University                 *
 *           Department of Computer Graphics and Multimedia                  *
 *                          All rights reserved.                             *
 *                            www.openmesh.org                               *
 *                                                                           *
 *---------------------------------------------------------------------------*
 * This file is part of OpenMesh.                                            *
 *---------------------------------------------------------------------------*
 *                                                                           *
 * Redistribution and use in source and binary forms, with or without        *
 * modification, are permitted provided that the following conditions        *
 * are met:                                                                  *
 *                                                                           *
 * 1. Redistributions of source code must retain the above copyright notice, *
 *    this list of conditions and the following disclaimer.                  *
 *                                                                           *
 * 2. Redistributions in binary form must reproduce the above copyright      *
 *    notice, this list of conditions and the following disclaimer in the    *
 *    documentation and/or other materials provided with the distribution.   *
 *                                                                           *
 * 3. Neither the name of the copyright holder nor the names of its          *
 *    contributors may be used to endorse or promote products derived from   *
 *    this software without specific prior written permission.               *
 *                                                                           *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS       *
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A           *
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,  *
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,       *
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR        *
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF    *
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING      *
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS        *
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.              *
 *                                                                           *
 * ========================================================================= */

/*===========================================================================*\
 *                                                                           *             
 *   $Revision$                                                         *
 *   $Date$                   *
 *                                                                           *
\*===========================================================================*/


//=============================================================================
//
//  CLASS TriMeshT
//
//=============================================================================


#ifndef OPENMESH_TRIMESH_HH
#define OPENMESH_TRIMESH_HH


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


#include <OpenMesh/Core/System/config.h>
#include <OpenMesh/Core/Mesh/PolyMeshT.hh>
#include <vector>


//== NAMESPACES ===============================================================


namespace OpenMesh {


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


template <class Kernel>
class TriMeshT : public PolyMeshT<Kernel>
{

public:


  // self
  typedef TriMeshT<Kernel>                      This;
  typedef PolyMeshT<Kernel>                     PolyMesh;

  enum { IsPolyMesh = 0 };
  enum { IsTriMesh  = 1 };
  static bool is_polymesh() { return false; }
  static bool is_trimesh()  { return  true; }

  //--- items ---

  typedef typename PolyMesh::Scalar             Scalar;
  typedef typename PolyMesh::Point              Point;
  typedef typename PolyMesh::Normal             Normal;
  typedef typename PolyMesh::Color              Color;
  typedef typename PolyMesh::TexCoord1D         TexCoord1D;
  typedef typename PolyMesh::TexCoord2D         TexCoord2D;
  typedef typename PolyMesh::TexCoord3D         TexCoord3D;
  typedef typename PolyMesh::Vertex             Vertex;
  typedef typename PolyMesh::Halfedge           Halfedge;
  typedef typename PolyMesh::Edge               Edge;
  typedef typename PolyMesh::Face               Face;


  //--- handles ---

  typedef typename PolyMesh::VertexHandle       VertexHandle;
  typedef typename PolyMesh::HalfedgeHandle     HalfedgeHandle;
  typedef typename PolyMesh::EdgeHandle         EdgeHandle;
  typedef typename PolyMesh::FaceHandle         FaceHandle;


  //--- iterators ---

  typedef typename PolyMesh::VertexIter         VertexIter;
  typedef typename PolyMesh::ConstVertexIter    ConstVertexIter;
  typedef typename PolyMesh::EdgeIter           EdgeIter;
  typedef typename PolyMesh::ConstEdgeIter      ConstEdgeIter;
  typedef typename PolyMesh::FaceIter           FaceIter;
  typedef typename PolyMesh::ConstFaceIter      ConstFaceIter;



  //--- circulators ---

  typedef typename PolyMesh::VertexVertexIter         VertexVertexIter;
  typedef typename PolyMesh::VertexOHalfedgeIter      VertexOHalfedgeIter;
  typedef typename PolyMesh::VertexIHalfedgeIter      VertexIHalfedgeIter;
  typedef typename PolyMesh::VertexEdgeIter           VertexEdgeIter;
  typedef typename PolyMesh::VertexFaceIter           VertexFaceIter;
  typedef typename PolyMesh::FaceVertexIter           FaceVertexIter;
  typedef typename PolyMesh::FaceHalfedgeIter         FaceHalfedgeIter;
  typedef typename PolyMesh::FaceEdgeIter             FaceEdgeIter;
  typedef typename PolyMesh::FaceFaceIter             FaceFaceIter;
  typedef typename PolyMesh::ConstVertexVertexIter    ConstVertexVertexIter;
  typedef typename PolyMesh::ConstVertexOHalfedgeIter ConstVertexOHalfedgeIter;
  typedef typename PolyMesh::ConstVertexIHalfedgeIter ConstVertexIHalfedgeIter;
  typedef typename PolyMesh::ConstVertexEdgeIter      ConstVertexEdgeIter;
  typedef typename PolyMesh::ConstVertexFaceIter      ConstVertexFaceIter;
  typedef typename PolyMesh::ConstFaceVertexIter      ConstFaceVertexIter;
  typedef typename PolyMesh::ConstFaceHalfedgeIter    ConstFaceHalfedgeIter;
  typedef typename PolyMesh::ConstFaceEdgeIter        ConstFaceEdgeIter;
  typedef typename PolyMesh::ConstFaceFaceIter        ConstFaceFaceIter;

  // --- constructor/destructor

  TriMeshT() : PolyMesh() {}
  virtual ~TriMeshT() {}

  //--- halfedge collapse / vertex split ---

  inline HalfedgeHandle vertex_split(Point _v0_point,  VertexHandle _v1,
                                     VertexHandle _vl, VertexHandle _vr)
  { return PolyMesh::vertex_split(this->add_vertex(_v0_point), _v1, _vl, _vr); }

  inline HalfedgeHandle vertex_split(VertexHandle _v0, VertexHandle _v1,
                                     VertexHandle _vl, VertexHandle _vr)
  { return PolyMesh::vertex_split(_v0, _v1, _vl, _vr); }

  inline VertexHandle split(EdgeHandle _eh, const Point& _p)
  {
    //Do not call PolyMeshT function below as this does the wrong operation
    const VertexHandle vh = this->add_vertex(_p); Kernel::split(_eh, vh); return vh;
  }

  inline VertexHandle split_copy(EdgeHandle _eh, const Point& _p)
  {
    //Do not call PolyMeshT function below as this does the wrong operation
    const VertexHandle vh = this->add_vertex(_p); Kernel::split_copy(_eh, vh); return vh;
  }

  inline void split(EdgeHandle _eh, VertexHandle _vh)
  {
    //Do not call PolyMeshT function below as this does the wrong operation
    Kernel::split(_eh, _vh);
  }

  inline void split_copy(EdgeHandle _eh, VertexHandle _vh)
  {
    //Do not call PolyMeshT function below as this does the wrong operation
    Kernel::split_copy(_eh, _vh);
  }

  inline VertexHandle split(FaceHandle _fh, const Point& _p)
  { const VertexHandle vh = this->add_vertex(_p); PolyMesh::split(_fh, vh); return vh; }

  inline VertexHandle split_copy(FaceHandle _fh, const Point& _p)
  { const VertexHandle vh = this->add_vertex(_p);  PolyMesh::split_copy(_fh, vh); return vh; }

  inline void split(FaceHandle _fh, VertexHandle _vh)
  { PolyMesh::split(_fh, _vh); }

  inline void split_copy(FaceHandle _fh, VertexHandle _vh)
  { PolyMesh::split_copy(_fh, _vh); }
  

  Normal calc_face_normal(FaceHandle _fh) const;

};


//=============================================================================
} // namespace OpenMesh
//=============================================================================
#if defined(OM_INCLUDE_TEMPLATES) && !defined(OPENMESH_TRIMESH_C)
#define OPENMESH_TRIMESH_TEMPLATES
#include "TriMeshT.cc"
#endif
//=============================================================================
#endif // OPENMESH_TRIMESH_HH defined
//=============================================================================