Panda3D

curveFitter.h

00001 // Filename: curveFitter.h
00002 // Created by:  drose (17Sep98)
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 CURVEFITTER_H
00016 #define CURVEFITTER_H
00017 
00018 #include "pandabase.h"
00019 
00020 #include "luse.h"
00021 
00022 #include "parametricCurveCollection.h"
00023 
00024 #include "typedef.h"
00025 #include "pvector.h"
00026 
00027 class HermiteCurve;
00028 class ParametricCurve;
00029 class NurbsCurve;
00030 
00031 ////////////////////////////////////////////////////////////////////
00032 //       Class : CurveFitter
00033 // Description :
00034 ////////////////////////////////////////////////////////////////////
00035 class CurveFitter {
00036 PUBLISHED:
00037   CurveFitter();
00038   ~CurveFitter();
00039 
00040   void reset();
00041   void add_xyz(PN_stdfloat t, const LVecBase3 &xyz);
00042   void add_hpr(PN_stdfloat t, const LVecBase3 &hpr);
00043   void add_xyz_hpr(PN_stdfloat t, const LVecBase3 &xyz, const LVecBase3 &hpr);
00044 
00045   int get_num_samples() const;
00046   PN_stdfloat get_sample_t(int n) const;
00047   LVecBase3 get_sample_xyz(int n) const;
00048   LVecBase3 get_sample_hpr(int n) const;
00049   LVecBase3 get_sample_tangent(int n) const;
00050   void remove_samples(int begin, int end);
00051 
00052   void sample(ParametricCurveCollection *curves, int count);
00053   void wrap_hpr();
00054   void sort_points();
00055   void desample(PN_stdfloat factor);
00056 
00057   void compute_tangents(PN_stdfloat scale);
00058   PT(ParametricCurveCollection) make_hermite() const;
00059   PT(ParametricCurveCollection) make_nurbs() const;
00060 
00061   void output(ostream &out) const;
00062   void write(ostream &out) const;
00063 
00064 public:
00065   class DataPoint {
00066   public:
00067     INLINE DataPoint();
00068     INLINE void output(ostream &out) const;
00069     INLINE bool operator < (const DataPoint &other) const;
00070 
00071     PN_stdfloat _t;
00072     LVecBase3 _xyz;
00073     LVecBase3 _hpr;
00074     LVecBase3 _tangent;
00075     LVecBase3 _hpr_tangent;
00076   };
00077 
00078   typedef pvector<DataPoint> Data;
00079   Data _data;
00080 
00081   bool _got_xyz;
00082   bool _got_hpr;
00083 
00084 public:
00085   static TypeHandle get_class_type() {
00086     return _type_handle;
00087   }
00088   static void init_type() {
00089     register_type(_type_handle, "CurveFitter");
00090   }
00091 
00092 private:
00093   static TypeHandle _type_handle;
00094 };
00095 
00096 INLINE ostream &operator << (ostream &out, const CurveFitter::DataPoint &dp) {
00097   dp.output(out);
00098   return out;
00099 }
00100 
00101 INLINE ostream &operator << (ostream &out, const CurveFitter &cf) {
00102   cf.output(out);
00103   return out;
00104 }
00105 
00106 #include "curveFitter.I"
00107 
00108 #endif
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