A.I.M.S algorithms


samplable_cone.h
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33 
34 
35 #ifndef AIMS_RESAMPLING_SAMPLABLE_CONE_H
36 #define AIMS_RESAMPLING_SAMPLABLE_CONE_H
37 
39 
40 namespace aims
41 {
42 
43  class ConeSamplable : public aimsalgo::Samplable<float, 3>
44  {
45  public:
46  ConeSamplable( const Point3df & arrow, const Point3df & base,
47  float radius );
48  virtual ~ConeSamplable() {}
49  virtual bool contains( AimsVector<float,3> & vector )
50  {
51  // std::cout << "ConeSamplable::contains " << vector << std::endl;
52  float pos = vector.dot( _direction );
53  if( pos >= _proj0 and pos <= _proj1 )
54  {
55  float rmax = (pos - _proj0) / (_proj1 - _proj0) * _radius;
56  float r = ( vector - _cax0 - _direction * pos ).norm();
57  if( r <= rmax )
58  return true;
59  }
60  return false;
61  }
62 
63  private:
64  Point3df _arrow;
65  Point3df _base;
66  float _radius;
67 
68  Point3df _direction;
69  float _proj0;
70  float _proj1;
71  Point3df _cax0;
72  };
73 
74 
76  const Point3df & base, float radius )
77  : aimsalgo::Samplable<float, 3>(), _arrow( arrow ), _base( base ),
78  _radius( radius )
79  {
80  _direction = base - arrow;
81  _direction /= _direction.norm();
82  _proj0 = _direction.dot( arrow );
83  _proj1 = _direction.dot( base );
84  _cax0 = _arrow - _direction * _proj0;
85  }
86 
87 }
88 
89 #endif
90 
virtual ~ConeSamplable()
ConeSamplable(const Point3df &arrow, const Point3df &base, float radius)
virtual bool contains(AimsVector< float, 3 > &vector)
AIMSDATA_API float norm(const Tensor &thing)
T dot(const AimsVector< T, D > &other) const
float norm() const