PCL
GnomonicProjection.h
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7 // pcl/GnomonicProjection.h - Released 2024-06-18T15:48:54Z
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51 
52 #ifndef __PCL_GnomonicProjection_h
53 #define __PCL_GnomonicProjection_h
54 
56 
57 #include <pcl/Defs.h>
58 
59 #include <pcl/ProjectionBase.h>
60 
61 /*
62  * Based on original work contributed by AndrĂ©s del Pozo.
63  */
64 
65 namespace pcl
66 {
67 
68 // ----------------------------------------------------------------------------
69 
76 class PCL_CLASS GnomonicProjection : public ProjectionBase
77 {
78 public:
79 
84  GnomonicProjection( double ra0, double dec0 )
85  {
86  m_ra0 = Rad( ra0 );
87  m_dec0 = Rad( dec0 );
88  SinCos( m_dec0, m_sinDec0, m_cosDec0 );
89  m_theta0 = 90;
90  }
91 
96 
100  ProjectionBase* Clone() const override
101  {
102  return new GnomonicProjection( *this );
103  }
104 
108  IsoString ProjCode() const override
109  {
110  return "TAN";
111  }
112 
116  IsoString Identifier() const override
117  {
118  return "Gnomonic";
119  };
120 
124  IsoString Name() const override
125  {
126  return "Gnomonic";
127  }
128 
132  bool Direct( DPoint& pW, const DPoint& pRD ) const noexcept override;
133 
137  bool Inverse( DPoint& pRD, const DPoint& pW ) const noexcept override;
138 
142  bool CheckBrokenLine( const DPoint& cp1, const DPoint& cp2 ) const noexcept override
143  {
144  DPoint gp1, gp2;
145  return Direct( gp1, cp1 ) && Direct( gp2, cp2 ) &&
146  (gp1.x - gp2.x)*(gp1.x - gp2.x) + (gp1.y - gp2.y)*(gp1.y - gp2.y) < 45*45;
147  }
148 
149 protected:
150 
151  bool Project( DPoint& pW, const DPoint& pN ) const noexcept override
152  {
153  return false;
154  }
155 
156  bool Unproject( DPoint& pN, const DPoint& pW ) const noexcept override
157  {
158  return false;
159  }
160 
161 private:
162 
163  double m_sinDec0;
164  double m_cosDec0;
165 };
166 
167 // ----------------------------------------------------------------------------
168 
169 } // pcl
170 
171 #endif // __PCL_GnomonicProjection_h
172 
173 // ----------------------------------------------------------------------------
174 // EOF pcl/GnomonicProjection.h - Released 2024-06-18T15:48:54Z
A generic point in the two-dimensional space.
Definition: Point.h:100
component x
Abscissa (horizontal, or X-axis coordinate).
Definition: Point.h:111
component y
Ordinate (vertical, or Y-axis coordinate).
Definition: Point.h:112
Gnomonic projection system.
IsoString Name() const override
GnomonicProjection(double ra0, double dec0)
ProjectionBase * Clone() const override
bool Project(DPoint &pW, const DPoint &pN) const noexcept override
IsoString Identifier() const override
bool Unproject(DPoint &pN, const DPoint &pW) const noexcept override
IsoString ProjCode() const override
bool Direct(DPoint &pW, const DPoint &pRD) const noexcept override
bool Inverse(DPoint &pRD, const DPoint &pW) const noexcept override
GnomonicProjection(const GnomonicProjection &)=default
Eight-bit string (ISO/IEC-8859-1 or UTF-8 string)
Definition: String.h:5425
Base class of all projection systems.
void SinCos(T x, T &sx, T &cx) noexcept
Definition: Math.h:1030
constexpr T Rad(T x) noexcept
Definition: Math.h:1894
PCL root namespace.
Definition: AbstractImage.h:77