Panda3D
curveFitter.h
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1 /**
2  * PANDA 3D SOFTWARE
3  * Copyright (c) Carnegie Mellon University. All rights reserved.
4  *
5  * All use of this software is subject to the terms of the revised BSD
6  * license. You should have received a copy of this license along
7  * with this source code in a file named "LICENSE."
8  *
9  * @file curveFitter.h
10  * @author drose
11  * @date 1998-09-17
12  */
13 
14 #ifndef CURVEFITTER_H
15 #define CURVEFITTER_H
16 
17 #include "pandabase.h"
18 
19 #include "luse.h"
20 
22 
23 #include "typedef.h"
24 #include "pvector.h"
25 
26 class HermiteCurve;
27 class ParametricCurve;
28 class NurbsCurve;
29 
30 /**
31  *
32  */
33 class EXPCL_PANDA_PARAMETRICS CurveFitter {
34 PUBLISHED:
35  CurveFitter();
36  ~CurveFitter();
37 
38  void reset();
39  void add_xyz(PN_stdfloat t, const LVecBase3 &xyz);
40  void add_hpr(PN_stdfloat t, const LVecBase3 &hpr);
41  void add_xyz_hpr(PN_stdfloat t, const LVecBase3 &xyz, const LVecBase3 &hpr);
42 
43  int get_num_samples() const;
44  PN_stdfloat get_sample_t(int n) const;
45  LVecBase3 get_sample_xyz(int n) const;
46  LVecBase3 get_sample_hpr(int n) const;
47  LVecBase3 get_sample_tangent(int n) const;
48  void remove_samples(int begin, int end);
49 
50  void sample(ParametricCurveCollection *curves, int count);
51  void wrap_hpr();
52  void sort_points();
53  void desample(PN_stdfloat factor);
54 
55  void compute_tangents(PN_stdfloat scale);
56  PT(ParametricCurveCollection) make_hermite() const;
57  PT(ParametricCurveCollection) make_nurbs() const;
58 
59  void output(std::ostream &out) const;
60  void write(std::ostream &out) const;
61 
62 public:
63  class DataPoint {
64  public:
65  INLINE DataPoint();
66  INLINE void output(std::ostream &out) const;
67  INLINE bool operator < (const DataPoint &other) const;
68 
69  PN_stdfloat _t;
70  LVecBase3 _xyz;
71  LVecBase3 _hpr;
72  LVecBase3 _tangent;
73  LVecBase3 _hpr_tangent;
74  };
75 
76  typedef pvector<DataPoint> Data;
77  Data _data;
78 
79  bool _got_xyz;
80  bool _got_hpr;
81 
82 public:
83  static TypeHandle get_class_type() {
84  return _type_handle;
85  }
86  static void init_type() {
87  register_type(_type_handle, "CurveFitter");
88  }
89 
90 private:
91  static TypeHandle _type_handle;
92 };
93 
94 INLINE std::ostream &operator << (std::ostream &out, const CurveFitter::DataPoint &dp) {
95  dp.output(out);
96  return out;
97 }
98 
99 INLINE std::ostream &operator << (std::ostream &out, const CurveFitter &cf) {
100  cf.output(out);
101  return out;
102 }
103 
104 #include "curveFitter.I"
105 
106 #endif
A parametric curve defined by a sequence of control vertices, each with an in and out tangent.
Definition: hermiteCurve.h:83
A Nonuniform Rational B-Spline.
Definition: nurbsCurve.h:41
This is a set of zero or more ParametricCurves, which may or may not be related.
A virtual base class for parametric curves.
TypeHandle is the identifier used to differentiate C++ class types.
Definition: typeHandle.h:81
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...
Definition: register_type.I:22
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.