Marble::GnomonicProjection Class Reference

#include <GnomonicProjection.h>

Inheritance diagram for Marble::GnomonicProjection:

Public Member Functions
	GnomonicProjection ()
qreal	clippingRadius () const override
QString	description () const override
bool	geoCoordinates (const int x, const int y, const ViewportParams *params, qreal &lon, qreal &lat, GeoDataCoordinates::Unit unit=GeoDataCoordinates::Degree) const override
QIcon	icon () const override
QString	name () const override
bool	screenCoordinates (const GeoDataCoordinates &coordinates, const ViewportParams *params, qreal &x, qreal &y, bool &globeHidesPoint) const override
bool	screenCoordinates (const GeoDataCoordinates &coordinates, const ViewportParams *viewport, qreal *x, qreal &y, int &pointRepeatNum, const QSizeF &size, bool &globeHidesPoint) const override
bool	screenCoordinates (const GeoDataCoordinates &geopoint, const ViewportParams *viewport, qreal &x, qreal &y) const
virtual bool	screenCoordinates (const GeoDataLineString &lineString, const ViewportParams *viewport, QList< QPolygonF * > &polygons) const=0
bool	screenCoordinates (const qreal lon, const qreal lat, const ViewportParams *viewport, qreal &x, qreal &y) const
Public Member Functions inherited from Marble::AzimuthalProjection
bool	isClippedToSphere () const override
GeoDataLatLonAltBox	latLonAltBox (const QRect &screenRect, const ViewportParams *viewport) const override
bool	mapCoversViewport (const ViewportParams *viewport) const override
QPainterPath	mapShape (const ViewportParams *viewport) const override
PreservationType	preservationType () const override
bool	repeatableX () const override
bool	screenCoordinates (const GeoDataCoordinates &geopoint, const ViewportParams *viewport, qreal &x, qreal &y) const
bool	screenCoordinates (const qreal lon, const qreal lat, const ViewportParams *viewport, qreal &x, qreal &y) const
SurfaceType	surfaceType () const override
bool	traversableDateLine () const override
bool	traversablePoles () const override
Public Member Functions inherited from Marble::AbstractProjection
	AbstractProjection ()
virtual bool	isOrientedNormal () const
QRegion	mapRegion (const ViewportParams *viewport) const
qreal	maxLat () const
virtual qreal	maxValidLat () const
qreal	minLat () const
virtual qreal	minValidLat () const
bool	screenCoordinates (const GeoDataCoordinates &geopoint, const ViewportParams *viewport, qreal &x, qreal &y) const
bool	screenCoordinates (const qreal lon, const qreal lat, const ViewportParams *viewport, qreal &x, qreal &y) const
void	setMaxLat (qreal maxLat)
void	setMinLat (qreal minLat)

Protected Member Functions
	GnomonicProjection (GnomonicProjectionPrivate *dd)
Protected Member Functions inherited from Marble::AzimuthalProjection
	AzimuthalProjection (AzimuthalProjectionPrivate *dd)
Protected Member Functions inherited from Marble::AbstractProjection
	AbstractProjection (AbstractProjectionPrivate *dd)

Additional Inherited Members
Public Types inherited from Marble::AbstractProjection
enum	PreservationType { NoPreservation , Conformal , EqualArea }
enum	SurfaceType {   Cylindrical , Pseudocylindrical , Hybrid , Conical ,   Pseudoconical , Azimuthal }
Protected Attributes inherited from Marble::AbstractProjection
const QScopedPointer< AbstractProjectionPrivate >	d_ptr

Detailed Description

A class to implement the spherical projection used by the "Globe" view.

Definition at line 21 of file GnomonicProjection.h.

Constructor & Destructor Documentation

GnomonicProjection() [1/2]

Marble::GnomonicProjection::GnomonicProjection

(

)

Construct a new GnomonicProjection.

Definition at line 32 of file GnomonicProjection.cpp.

GnomonicProjection() [2/2]

Marble::GnomonicProjection::GnomonicProjection ( GnomonicProjectionPrivate * dd )

explicitprotected

Definition at line 39 of file GnomonicProjection.cpp.

Member Function Documentation

clippingRadius()

qreal Marble::GnomonicProjection::clippingRadius ( ) const

overridevirtual

Reimplemented from Marble::AzimuthalProjection.

Definition at line 70 of file GnomonicProjection.cpp.

description()

QString Marble::GnomonicProjection::description ( ) const

overridevirtual

Returns a short user description of the projection that can be used in tooltips or dialogs.

Implements Marble::AbstractProjection.

Definition at line 58 of file GnomonicProjection.cpp.

geoCoordinates()

bool Marble::GnomonicProjection::geoCoordinates ( const int x, const int y, const ViewportParams * params, qreal & lon, qreal & lat, GeoDataCoordinates::Unit unit = GeoDataCoordinates::Degree ) const

overridevirtual

Get the earth coordinates corresponding to a pixel in the map.

Parameters

x	the x coordinate of the pixel
y	the y coordinate of the pixel
params	parameters of the viewport
lon	the longitude angle is returned through this parameter
lat	the latitude angle is returned through this parameter
unit	the unit

Returns

true if the pixel (x, y) is within the globe false if the pixel (x, y) is outside the globe, i.e. in space.

Implements Marble::AbstractProjection.

Definition at line 141 of file GnomonicProjection.cpp.

icon()

QIcon Marble::GnomonicProjection::icon ( ) const

overridevirtual

Returns an icon for the projection.

Implements Marble::AbstractProjection.

Definition at line 65 of file GnomonicProjection.cpp.

name()

QString Marble::GnomonicProjection::name ( ) const

overridevirtual

Returns the user-visible name of the projection.

Implements Marble::AbstractProjection.

Definition at line 53 of file GnomonicProjection.cpp.

screenCoordinates() [1/5]

bool Marble::GnomonicProjection::screenCoordinates ( const GeoDataCoordinates & coordinates, const ViewportParams * params, qreal & x, qreal & y, bool & globeHidesPoint ) const

overridevirtual

Get the screen coordinates corresponding to geographical coordinates in the map.

Parameters

coordinates	the coordinates of the requested pixel position
params	the viewport parameters
x	the x coordinate of the pixel is returned through this parameter
y	the y coordinate of the pixel is returned through this parameter
globeHidesPoint	whether the globe hides the point

Returns

true if the geographical coordinates are visible on the screen false if the geographical coordinates are not visible on the screen

Reimplemented from Marble::AzimuthalProjection.

Definition at line 75 of file GnomonicProjection.cpp.

screenCoordinates() [2/5]

bool Marble::GnomonicProjection::screenCoordinates ( const GeoDataCoordinates & coordinates, const ViewportParams * viewport, qreal * x, qreal & y, int & pointRepeatNum, const QSizeF & size, bool & globeHidesPoint ) const

overridevirtual

Get the coordinates of screen points for geographical coordinates in the map.

Parameters

coordinates	the point on earth, including altitude, that we want the coordinates for.
viewport	the viewport parameters
x	the x coordinates of the pixels are returned through this parameter
y	the y coordinate of the pixel is returned through this parameter
pointRepeatNum	the amount of times that a single geographical point gets represented on the map
size	the size
globeHidesPoint	whether the point gets hidden on the far side of the earth

Returns

true if the geographical coordinates are visible on the screen false if the geographical coordinates are not visible on the screen

See also

ViewportParams

Reimplemented from Marble::AzimuthalProjection.

Definition at line 116 of file GnomonicProjection.cpp.

screenCoordinates() [3/5]

bool AbstractProjection::screenCoordinates	(	const GeoDataCoordinates &	geopoint,
		const ViewportParams *	viewport,
		qreal &	x,
		qreal &	y ) const

Definition at line 187 of file AbstractProjection.cpp.

screenCoordinates() [4/5]

virtual bool Marble::AbstractProjection::screenCoordinates ( const GeoDataLineString & lineString, const ViewportParams * viewport, QList< QPolygonF * > & polygons ) const

virtual

Reimplemented from Marble::AzimuthalProjection.

screenCoordinates() [5/5]

bool AbstractProjection::screenCoordinates	(	const qreal	lon,
		const qreal	lat,
		const ViewportParams *	viewport,
		qreal &	x,
		qreal &	y ) const

Get the screen coordinates corresponding to geographical coordinates in the map.

Parameters

lon	the lon coordinate of the requested pixel position in radians
lat	the lat coordinate of the requested pixel position in radians
viewport	the viewport parameters
x	the x coordinate of the pixel is returned through this parameter
y	the y coordinate of the pixel is returned through this parameter

Returns

true if the geographical coordinates are visible on the screen false if the geographical coordinates are not visible on the screen

See also

ViewportParams

Definition at line 168 of file AbstractProjection.cpp.

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

• GnomonicProjection.h
• GnomonicProjection.cpp