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00015 #ifndef NURBSSURFACERESULT_H
00016 #define NURBSSURFACERESULT_H
00017
00018 #include "pandabase.h"
00019 #include "referenceCount.h"
00020 #include "nurbsBasisVector.h"
00021
00022 class NurbsVertex;
00023
00024
00025
00026
00027
00028
00029
00030
00031 class EXPCL_PANDA_PARAMETRICS NurbsSurfaceResult : public ReferenceCount {
00032 public:
00033 NurbsSurfaceResult(const NurbsBasisVector &u_basis,
00034 const NurbsBasisVector &v_basis,
00035 const LVecBase4 vecs[], const NurbsVertex *verts,
00036 int num_u_vertices, int num_v_vertices);
00037
00038 PUBLISHED:
00039 INLINE ~NurbsSurfaceResult();
00040
00041 INLINE PN_stdfloat get_start_u() const;
00042 INLINE PN_stdfloat get_end_u() const;
00043
00044 INLINE PN_stdfloat get_start_v() const;
00045 INLINE PN_stdfloat get_end_v() const;
00046
00047 INLINE bool eval_point(PN_stdfloat u, PN_stdfloat v, LVecBase3 &point);
00048 INLINE bool eval_normal(PN_stdfloat u, PN_stdfloat v, LVecBase3 &normal);
00049 INLINE PN_stdfloat eval_extended_point(PN_stdfloat u, PN_stdfloat v, int d);
00050 INLINE bool eval_extended_points(PN_stdfloat u, PN_stdfloat v, int d,
00051 PN_stdfloat result[], int num_values);
00052
00053 INLINE int get_num_u_segments() const;
00054 INLINE int get_num_v_segments() const;
00055 void eval_segment_point(int ui, int vi, PN_stdfloat u, PN_stdfloat v, LVecBase3 &point) const;
00056 void eval_segment_normal(int ui, int vi, PN_stdfloat u, PN_stdfloat v, LVecBase3 &normal) const;
00057 PN_stdfloat eval_segment_extended_point(int ui, int vi, PN_stdfloat u, PN_stdfloat v, int d) const;
00058 void eval_segment_extended_points(int ui, int vi, PN_stdfloat u, PN_stdfloat v, int d,
00059 PN_stdfloat result[], int num_values) const;
00060 INLINE PN_stdfloat get_segment_u(int ui, PN_stdfloat u) const;
00061 INLINE PN_stdfloat get_segment_v(int vi, PN_stdfloat v) const;
00062
00063 private:
00064 INLINE int verti(int ui, int vi) const;
00065 INLINE int segi(int ui, int vi) const;
00066
00067 int find_u_segment(PN_stdfloat u);
00068 int r_find_u_segment(PN_stdfloat u, int top, int bot) const;
00069 int find_v_segment(PN_stdfloat v);
00070 int r_find_v_segment(PN_stdfloat v, int top, int bot) const;
00071
00072 NurbsBasisVector _u_basis;
00073 NurbsBasisVector _v_basis;
00074 const NurbsVertex *_verts;
00075 int _num_u_vertices;
00076 int _num_v_vertices;
00077
00078
00079
00080
00081
00082 class ComposedMats {
00083 public:
00084 LMatrix4 _x, _y, _z, _w;
00085 };
00086 typedef epvector<ComposedMats> ComposedGeom;
00087 ComposedGeom _composed;
00088
00089
00090 int _last_u_segment;
00091 PN_stdfloat _last_u_from;
00092 PN_stdfloat _last_u_to;
00093 int _last_v_segment;
00094 PN_stdfloat _last_v_from;
00095 PN_stdfloat _last_v_to;
00096 };
00097
00098 #include "nurbsSurfaceResult.I"
00099
00100 #endif
00101