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	findZenithPA (const SkyPoint *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 }
Protected Member Functions inherited from Projector
Eigen::Vector2f	derst (double x, double y) const
Eigen::Vector2f	rst (double x, double y) const
Static Protected Member Functions inherited from Projector
static SkyPoint	pointAt (double az)
Protected Attributes inherited from Projector
QPolygonF	m_clipPolygon
double	m_cosY0 { 0 }
KStarsData *	m_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.

Constructor & Destructor Documentation

GnomonicProjector()

GnomonicProjector::GnomonicProjector ( const ViewParams & p )

explicit

Definition at line 9 of file gnomonicprojector.cpp.

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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The documentation for this class was generated from the following files:

• gnomonicprojector.h
• gnomonicprojector.cpp