00001 /*************************************************************************** 00002 * Copyright (C) 2007 by Pablo Diaz-Gutierrez * 00003 * pablo@ics.uci.edu * 00004 * * 00005 * This program is free software; you can redistribute it and/or modify * 00006 * it under the terms of the GNU Library General Public License as * 00007 * published by the Free Software Foundation; either version 2 of the * 00008 * License, or (at your option) any later version. * 00009 * * 00010 * This program is distributed in the hope that it will be useful, * 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 00013 * GNU General Public License for more details. * 00014 * * 00015 * You should have received a copy of the GNU Library General Public * 00016 * License along with this program; if not, write to the * 00017 * Free Software Foundation, Inc., * 00018 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * 00019 ***************************************************************************/ 00020 00021 #ifndef __FACE_H__ 00022 #define __FACE_H__ 00023 00024 00025 #include "vector3.h" 00026 00027 namespace HE 00028 { 00029 class HalfEdge; 00030 class Vertex; 00031 00036 class Face 00037 { 00038 public: 00040 class edge_circulator 00041 { 00042 public: 00043 edge_circulator(const Face* f, HalfEdge* h) : _base(f), _here(h) {} 00044 00045 HalfEdge* operator*() { return _here; } 00046 void operator++(); 00047 void operator++(int) { ++(*this); } 00048 bool operator==(const edge_circulator& e) const { return _base==e._base && _here==e._here; } 00049 bool operator!=(const edge_circulator& e) const { return !(e == *this); } 00050 protected: 00051 const Face* _base; 00052 HalfEdge* _here; 00053 }; 00058 edge_circulator begin() { return edge_circulator(this, _edge); } 00059 00061 class const_edge_circulator 00062 { 00063 public: 00064 const_edge_circulator(const Face* f, const HalfEdge* h) : _base(f), _here(h) {} 00065 00066 const HalfEdge* operator*() { return _here; } 00067 void operator++(); 00068 void operator++(int) { ++(*this); } 00069 bool operator==(const const_edge_circulator& e) const { return _base==e._base && _here==e._here; } 00070 bool operator!=(const const_edge_circulator& e) const { return !(e == *this); } 00071 protected: 00072 const Face* _base; 00073 const HalfEdge* _here; 00074 }; 00079 const_edge_circulator begin() const { return const_edge_circulator(this, _edge); } 00080 00086 explicit Face(HalfEdge* e, bool hole=false) : _edge(e), _hole(hole) {} 00087 00088 // Set methods 00089 void hole(bool h) { _hole = h; } 00090 void edge(HalfEdge* e) { _edge = e; } 00091 00092 // Get methods 00093 bool hole() const { return _hole; } 00094 HalfEdge* edge() { return _edge; } 00095 const HalfEdge* edge() const { return _edge; } 00096 const HalfEdge* fromVertex(int v) const; 00097 const HalfEdge* fromVertex(Vertex* v) const; 00098 const HalfEdge* toVertex(int v) const; 00099 const HalfEdge* toVertex(Vertex* v) const; 00100 00101 // Simple computations 00102 int size() const; 00103 bool contains(const HalfEdge* he) const; 00104 bool contains(const Vertex* v) const; 00105 Geometry::Vector3Df normal() const; 00106 Geometry::Vector3Df centroid() const; 00107 00108 protected: 00109 HalfEdge* _edge; 00110 bool _hole; 00111 }; 00112 00114 std::ostream& operator<< (std::ostream& out, const Face& f); 00115 }; 00116 00117 #endif // __FACE_H__
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