Marble::AbstractProjection Class Reference

#include <AbstractProjection.h>

Inheritance diagram for Marble::AbstractProjection:

Public Types
enum	PreservationType { NoPreservation, Conformal, EqualArea }
enum	SurfaceType {   Cylindrical, Pseudocylindrical, Hybrid, Conical,   Pseudoconical, Azimuthal }

Public Member Functions
	AbstractProjection ()
virtual	~AbstractProjection ()
virtual bool	geoCoordinates (const int x, const int y, const ViewportParams *viewport, qreal &lon, qreal &lat, GeoDataCoordinates::Unit unit=GeoDataCoordinates::Degree) const =0
virtual bool	isOrientedNormal () const
virtual GeoDataLatLonAltBox	latLonAltBox (const QRect &screenRect, const ViewportParams *viewport) const
virtual bool	mapCoversViewport (const ViewportParams *viewport) const =0
QRegion	mapRegion (const ViewportParams *viewport) const
virtual QPainterPath	mapShape (const ViewportParams *viewport) const =0
qreal	maxLat () const
virtual qreal	maxValidLat () const
qreal	minLat () const
virtual qreal	minValidLat () const
virtual PreservationType	preservationType () const
virtual bool	repeatableX () const
bool	screenCoordinates (const qreal lon, const qreal lat, const ViewportParams *viewport, qreal &x, qreal &y) const
virtual bool	screenCoordinates (const GeoDataCoordinates &geopoint, const ViewportParams *viewport, qreal &x, qreal &y, bool &globeHidesPoint) const =0
bool	screenCoordinates (const GeoDataCoordinates &geopoint, const ViewportParams *viewport, qreal &x, qreal &y) const
virtual bool	screenCoordinates (const GeoDataCoordinates &coordinates, const ViewportParams *viewport, qreal *x, qreal &y, int &pointRepeatNum, const QSizeF &size, bool &globeHidesPoint) const =0
virtual bool	screenCoordinates (const GeoDataLineString &lineString, const ViewportParams *viewport, QVector< QPolygonF * > &polygons) const =0
void	setMaxLat (qreal maxLat)
void	setMinLat (qreal minLat)
virtual SurfaceType	surfaceType () const =0
virtual bool	traversableDateLine () const
virtual bool	traversablePoles () const

Protected Member Functions
	AbstractProjection (AbstractProjectionPrivate *dd)

Protected Attributes
const QScopedPointer < AbstractProjectionPrivate >	d_ptr

Detailed Description

A base class for all projections in Marble.

Definition at line 49 of file AbstractProjection.h.

Member Enumeration Documentation

enum Marble::AbstractProjection::PreservationType

Enumerator
NoPreservation
Conformal
EqualArea

Definition at line 62 of file AbstractProjection.h.

enum Marble::AbstractProjection::SurfaceType

Enumerator
Cylindrical
Pseudocylindrical
Hybrid
Conical
Pseudoconical
Azimuthal

Definition at line 53 of file AbstractProjection.h.

Constructor & Destructor Documentation

AbstractProjection::AbstractProjection

(

)

Construct a new AbstractProjection.

Definition at line 28 of file AbstractProjection.cpp.

AbstractProjection::~AbstractProjection ( )

virtual

Definition at line 38 of file AbstractProjection.cpp.

AbstractProjection::AbstractProjection ( AbstractProjectionPrivate *  dd )

protected

Definition at line 33 of file AbstractProjection.cpp.

Member Function Documentation

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

pure virtual

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
viewport	the viewport parameters
lon	the longitude angle is returned through this parameter
lat	the latitude angle is returned through this parameter
unit	the unit of the angles for lon and lat.

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.

Implemented in Marble::SphericalProjection, Marble::EquirectProjection, and Marble::MercatorProjection.

bool AbstractProjection::isOrientedNormal ( ) const

virtual

Definition at line 113 of file AbstractProjection.cpp.

GeoDataLatLonAltBox AbstractProjection::latLonAltBox ( const QRect &  screenRect, const ViewportParams *  viewport  ) const

virtual

Reimplemented in Marble::SphericalProjection, Marble::EquirectProjection, and Marble::MercatorProjection.

Definition at line 136 of file AbstractProjection.cpp.

virtual bool Marble::AbstractProjection::mapCoversViewport ( const ViewportParams *  viewport ) const

pure virtual

Implemented in Marble::SphericalProjection, Marble::EquirectProjection, and Marble::MercatorProjection.

QRegion AbstractProjection::mapRegion

(

const ViewportParams *

viewport

)

const

Definition at line 216 of file AbstractProjection.cpp.

virtual QPainterPath Marble::AbstractProjection::mapShape ( const ViewportParams *  viewport ) const

pure virtual

Implemented in Marble::SphericalProjection, and Marble::CylindricalProjection.

qreal AbstractProjection::maxLat

(

)

const

Definition at line 54 of file AbstractProjection.cpp.

qreal AbstractProjection::maxValidLat ( ) const

virtual

Reimplemented in Marble::SphericalProjection, Marble::EquirectProjection, and Marble::MercatorProjection.

Definition at line 49 of file AbstractProjection.cpp.

qreal AbstractProjection::minLat

(

)

const

Definition at line 76 of file AbstractProjection.cpp.

qreal AbstractProjection::minValidLat ( ) const

virtual

Reimplemented in Marble::SphericalProjection, Marble::EquirectProjection, and Marble::MercatorProjection.

Definition at line 71 of file AbstractProjection.cpp.

AbstractProjection::PreservationType AbstractProjection::preservationType ( ) const

virtual

Reimplemented in Marble::SphericalProjection, Marble::EquirectProjection, and Marble::MercatorProjection.

Definition at line 108 of file AbstractProjection.cpp.

bool AbstractProjection::repeatableX ( ) const

virtual

Reimplemented in Marble::SphericalProjection, and Marble::CylindricalProjection.

Definition at line 93 of file AbstractProjection.cpp.

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 118 of file AbstractProjection.cpp.

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

pure virtual

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

Parameters

geopoint	the point on earth, including altitude, that we want the coordinates for.
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
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

Implemented in Marble::SphericalProjection, Marble::EquirectProjection, and Marble::MercatorProjection.

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

Definition at line 127 of file AbstractProjection.cpp.

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

pure virtual

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
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

Implemented in Marble::SphericalProjection, Marble::EquirectProjection, and Marble::MercatorProjection.

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

pure virtual

Implemented in Marble::SphericalProjection, and Marble::CylindricalProjection.

void AbstractProjection::setMaxLat

(

qreal

maxLat

)

Definition at line 60 of file AbstractProjection.cpp.

void AbstractProjection::setMinLat

(

qreal

minLat

)

Definition at line 82 of file AbstractProjection.cpp.

virtual SurfaceType Marble::AbstractProjection::surfaceType ( ) const

pure virtual

Implemented in Marble::SphericalProjection, and Marble::CylindricalProjection.

bool AbstractProjection::traversableDateLine ( ) const

virtual

Reimplemented in Marble::SphericalProjection, and Marble::CylindricalProjection.

Definition at line 103 of file AbstractProjection.cpp.

bool AbstractProjection::traversablePoles ( ) const

virtual

Reimplemented in Marble::SphericalProjection, and Marble::CylindricalProjection.

Definition at line 98 of file AbstractProjection.cpp.

Member Data Documentation

const QScopedPointer<AbstractProjectionPrivate> Marble::AbstractProjection::d_ptr

protected

Definition at line 193 of file AbstractProjection.h.

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

• AbstractProjection.h
• AbstractProjection.cpp