Panda3D
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00001 // Filename: eggNurbsCurve.h 00002 // Created by: drose (15Feb00) 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 EGGNURBSCURVE_H 00016 #define EGGNURBSCURVE_H 00017 00018 #include "pandabase.h" 00019 00020 #include "eggCurve.h" 00021 00022 #include "vector_double.h" 00023 00024 //////////////////////////////////////////////////////////////////// 00025 // Class : EggNurbsCurve 00026 // Description : A parametric NURBS curve. 00027 //////////////////////////////////////////////////////////////////// 00028 class EXPCL_PANDAEGG EggNurbsCurve : public EggCurve { 00029 PUBLISHED: 00030 INLINE EggNurbsCurve(const string &name = ""); 00031 INLINE EggNurbsCurve(const EggNurbsCurve ©); 00032 INLINE EggNurbsCurve &operator = (const EggNurbsCurve ©); 00033 00034 void setup(int order, int num_knots); 00035 00036 INLINE void set_order(int order); 00037 void set_num_knots(int num); 00038 00039 INLINE void set_knot(int k, double value); 00040 00041 bool is_valid() const; 00042 00043 INLINE int get_order() const; 00044 INLINE int get_degree() const; 00045 INLINE int get_num_knots() const; 00046 INLINE int get_num_cvs() const; 00047 00048 bool is_closed() const; 00049 00050 INLINE double get_knot(int k) const; 00051 MAKE_SEQ(get_knots, get_num_knots, get_knot); 00052 00053 virtual void write(ostream &out, int indent_level) const; 00054 00055 private: 00056 typedef vector_double Knots; 00057 Knots _knots; 00058 int _order; 00059 00060 public: 00061 00062 static TypeHandle get_class_type() { 00063 return _type_handle; 00064 } 00065 static void init_type() { 00066 EggCurve::init_type(); 00067 register_type(_type_handle, "EggNurbsCurve", 00068 EggCurve::get_class_type()); 00069 } 00070 virtual TypeHandle get_type() const { 00071 return get_class_type(); 00072 } 00073 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00074 00075 private: 00076 static TypeHandle _type_handle; 00077 00078 }; 00079 00080 #include "eggNurbsCurve.I" 00081 00082 #endif