00001 // This is oul/ouml/polygon_mesh.h 00002 // Copyright (c) 2001 Brendan McCane University of Otago, Dunedin, New 00003 // Zealand Reproduction rights limited as described in the COPYRIGHT file. 00004 #ifndef OTAGO_polygon_mesh__h_INCLUDED 00005 #define OTAGO_polygon_mesh__h_INCLUDED 00006 //: 00007 // \file 00008 // \brief a class for polygon meshes 00009 // 00010 //---------------------------------------------------------------------- 00011 00012 #include <vgl/vgl_point_3d.h> 00013 #include <vnl/vnl_vector_fixed.h> 00014 #include <vcl_vector.h> 00015 #include <vcl_iosfwd.h> 00016 00017 class PolygonMesh 00018 { 00019 public: 00020 typedef vgl_point_3d<double> DPoint ; 00021 typedef vnl_vector_fixed<double, 3> DVector3D; 00022 typedef vcl_vector<int> Face; // a face is a list of vertices 00023 typedef vcl_vector<DPoint> Polygon; 00024 private: 00025 vcl_vector<DPoint> vertex_list; 00026 vcl_vector<Face> face_list; 00027 00028 public: 00029 PolygonMesh(int num_vertices=100, int num_faces=100): 00030 vertex_list(num_vertices), face_list(num_faces){} 00031 int add_vertex(DPoint &pt); 00032 int set_vertex(int index, DPoint &pt); 00033 int add_face(Face &fc); 00034 int set_face(int index, Face &fc); 00035 DPoint get_vertex(int index); 00036 Polygon get_face(int index); 00037 DVector3D get_face_normal(int face_index, 00038 int vertex_index); 00039 bool read_file(char *filename); 00040 inline int num_faces() const {return face_list.size();} 00041 inline int num_vertices() const {return vertex_list.size();} 00042 }; 00043 00044 vcl_ostream &operator <<(vcl_ostream &os, PolygonMesh &pmesh); 00045 // add these when I can access iostream docs 00046 vcl_istream &operator >>(vcl_istream &is, PolygonMesh &pmesh); 00047 00048 #endif // OTAGO_polygon_mesh__h_INCLUDED
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