Panda3D
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00001 // Filename: eggPolygon.h 00002 // Created by: drose (16Jan99) 00003 // 00004 //////////////////////////////////////////////////////////////////// 00005 // 00006 // PANDA 3D SOFTWARE 00007 // Copyright (c) Carnegie Mellon University. All rights reserved. 00008 // 00009 // All use of this software is subject to the terms of the revised BSD 00010 // license. You should have received a copy of this license along 00011 // with this source code in a file named "LICENSE." 00012 // 00013 //////////////////////////////////////////////////////////////////// 00014 00015 #ifndef EGGPOLYGON_H 00016 #define EGGPOLYGON_H 00017 00018 #include "pandabase.h" 00019 00020 #include "eggPrimitive.h" 00021 00022 //////////////////////////////////////////////////////////////////// 00023 // Class : EggPolygon 00024 // Description : A single polygon. 00025 //////////////////////////////////////////////////////////////////// 00026 class EXPCL_PANDAEGG EggPolygon : public EggPrimitive { 00027 PUBLISHED: 00028 INLINE EggPolygon(const string &name = ""); 00029 INLINE EggPolygon(const EggPolygon ©); 00030 INLINE EggPolygon &operator = (const EggPolygon ©); 00031 00032 virtual bool cleanup(); 00033 00034 bool calculate_normal(LNormald &result, CoordinateSystem cs = CS_default) const; 00035 bool is_planar() const; 00036 00037 INLINE bool recompute_polygon_normal(CoordinateSystem cs = CS_default); 00038 00039 INLINE bool triangulate_into(EggGroupNode *container, bool convex_also) const; 00040 PT(EggPolygon) triangulate_in_place(bool convex_also); 00041 00042 virtual void write(ostream &out, int indent_level) const; 00043 00044 private: 00045 bool decomp_concave(EggGroupNode *container, int asum, int x, int y) const; 00046 bool triangulate_poly(EggGroupNode *container, bool convex_also); 00047 00048 public: 00049 00050 static TypeHandle get_class_type() { 00051 return _type_handle; 00052 } 00053 static void init_type() { 00054 EggPrimitive::init_type(); 00055 register_type(_type_handle, "EggPolygon", 00056 EggPrimitive::get_class_type()); 00057 } 00058 virtual TypeHandle get_type() const { 00059 return get_class_type(); 00060 } 00061 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00062 00063 private: 00064 static TypeHandle _type_handle; 00065 00066 }; 00067 00068 #include "eggPolygon.I" 00069 00070 #endif