GnomonicProjector

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GnomonicProjector Class Reference

#include <gnomonicprojector.h>

Inheritance diagram for GnomonicProjector:

Public Member Functions

 GnomonicProjector (const ViewParams &p)
 
double cosMaxFieldAngle () const override
 
double projectionK (double x) const override
 
double projectionL (double x) const override
 
double radius () const override
 
Projection type () const override
 
- Public Member Functions inherited from Projector
 Projector (const ViewParams &p)
 
bool checkVisibility (const SkyPoint *p) const
 
QPointF clipLine (SkyPoint *p1, SkyPoint *p2) const
 
Eigen::Vector2f clipLineVec (SkyPoint *p1, SkyPoint *p2) const
 
virtual QPolygonF clipPoly () const
 
double findNorthPA (const SkyPoint *o, float x, float y) const
 
double findPA (const SkyObject *o, float x, float y) const
 
double fov () const
 
virtual SkyPoint fromScreen (const QPointF &p, dms *LST, const dms *lat, bool onlyAltAz=false) const
 
virtual QVector< Eigen::Vector2f > groundPoly (SkyPoint *labelpoint=nullptr, bool *drawLabel=nullptr) const
 
bool onScreen (const Eigen::Vector2f &p) const
 
bool onScreen (const QPointF &p) const
 
void setViewParams (const ViewParams &p)
 
QPointF toScreen (const SkyPoint *o, bool oRefract=true, bool *onVisibleHemisphere=nullptr) const
 
virtual Eigen::Vector2f toScreenVec (const SkyPoint *o, bool oRefract=true, bool *onVisibleHemisphere=nullptr) const
 
virtual bool unusablePoint (const QPointF &p) const
 
virtual void updateClipPoly ()
 
ViewParams viewParams () const
 

Additional Inherited Members

- Public Types inherited from Projector
enum  Projection {
  Lambert, AzimuthalEquidistant, Orthographic, Equirectangular,
  Stereographic, Gnomonic, UnknownProjection
}
 
- Static Protected Member Functions inherited from Projector
static SkyPoint pointAt (double az)
 
- Protected Attributes inherited from Projector
QPolygonF m_clipPolygon
 
double m_cosY0 { 0 }
 
KStarsDatam_data { nullptr }
 
double m_fov { 0 }
 
double m_sinY0 { 0 }
 
ViewParams m_vp
 

Detailed Description

Implememntation of Gnomonic projection

Definition at line 18 of file gnomonicprojector.h.

Member Function Documentation

◆ cosMaxFieldAngle()

double GnomonicProjector::cosMaxFieldAngle ( ) const
overridevirtual

This function returns the cosine of the maximum field angle, i.e., the maximum angular distance from the focus for which a point should be projected.

Default is 0, i.e., 90 degrees.

Reimplemented from Projector.

Definition at line 34 of file gnomonicprojector.cpp.

◆ projectionK()

double GnomonicProjector::projectionK ( double  x) const
overridevirtual

This function handles some of the projection-specific code.

See also
toScreen()

Reimplemented from Projector.

Definition at line 24 of file gnomonicprojector.cpp.

◆ projectionL()

double GnomonicProjector::projectionL ( double  x) const
overridevirtual

This function handles some of the projection-specific code.

See also
toScreen()

Reimplemented from Projector.

Definition at line 29 of file gnomonicprojector.cpp.

◆ radius()

double GnomonicProjector::radius ( ) const
overridevirtual

Get the radius of this projection's sky circle.

Returns
the radius in radians

Reimplemented from Projector.

Definition at line 19 of file gnomonicprojector.cpp.

◆ type()

Projector::Projection GnomonicProjector::type ( ) const
overridevirtual

Return the type of this projection.

Implements Projector.

Definition at line 14 of file gnomonicprojector.cpp.


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