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marble

  • Marble
  • EquirectProjection
Public Member Functions | List of all members
Marble::EquirectProjection Class Reference

#include <EquirectProjection.h>

Inheritance diagram for Marble::EquirectProjection:
Inheritance graph
[legend]

Public Member Functions

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

Additional Inherited Members

- Public Types inherited from Marble::AbstractProjection
enum  PreservationType { NoPreservation, Conformal, EqualArea }
 
enum  SurfaceType {
  Cylindrical, Pseudocylindrical, Hybrid, Conical,
  Pseudoconical, Azimuthal
}
 
- Protected Member Functions inherited from Marble::CylindricalProjection
 CylindricalProjection (CylindricalProjectionPrivate *dd)
 
- Protected Member Functions inherited from Marble::AbstractProjection
 AbstractProjection (AbstractProjectionPrivate *dd)
 
- Protected Attributes inherited from Marble::AbstractProjection
const QScopedPointer
< AbstractProjectionPrivate > 
d_ptr
 

Detailed Description

A class to implement the Equirectangular projection used by the "Flat Map" view.

Definition at line 35 of file EquirectProjection.h.

Constructor & Destructor Documentation

EquirectProjection::EquirectProjection ( )

Construct a new EquirectProjection.

Definition at line 24 of file EquirectProjection.cpp.

EquirectProjection::~EquirectProjection ( )
virtual

Definition at line 31 of file EquirectProjection.cpp.

Member Function Documentation

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

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

If the pixel (x, y) is outside the globe, only lon will be calculated, and lat will be unchanged.

Parameters
xthe x coordinate of the pixel
ythe y coordinate of the pixel
lonthe longitude angle is returned through this parameter
latthe latitude angle is returned through this parameter
Returns
true if the pixel (x, y) is within the map false if the pixel (x, y) is above or underneath the map

Implements Marble::AbstractProjection.

Definition at line 138 of file EquirectProjection.cpp.

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

Reimplemented from Marble::AbstractProjection.

Definition at line 187 of file EquirectProjection.cpp.

bool EquirectProjection::mapCoversViewport ( const ViewportParams *  viewport) const
virtual

Implements Marble::AbstractProjection.

Definition at line 245 of file EquirectProjection.cpp.

qreal EquirectProjection::maxValidLat ( ) const
virtual

Reimplemented from Marble::AbstractProjection.

Definition at line 35 of file EquirectProjection.cpp.

qreal EquirectProjection::minValidLat ( ) const
virtual

Reimplemented from Marble::AbstractProjection.

Definition at line 40 of file EquirectProjection.cpp.

virtual PreservationType Marble::EquirectProjection::preservationType ( ) const
inlinevirtual

Reimplemented from Marble::AbstractProjection.

Definition at line 50 of file EquirectProjection.h.

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

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

Parameters
lonthe lon coordinate of the requested pixel position
latthe lat coordinate of the requested pixel position
xthe x coordinate of the pixel is returned through this parameter
ythe 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

Implements Marble::AbstractProjection.

Definition at line 45 of file EquirectProjection.cpp.

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

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

Parameters
coordinatesthe point on earth, including altitude, that we want the coordinates for.
viewportthe viewport parameters
xthe x coordinates of the pixels are returned through this parameter
ythe y coordinate of the pixel is returned through this parameter
pointRepeatNumthe amount of times that a single geographical point gets represented on the map
globeHidesPointwhether 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

Implements Marble::AbstractProjection.

Definition at line 77 of file EquirectProjection.cpp.


The documentation for this class was generated from the following files:
  • EquirectProjection.h
  • EquirectProjection.cpp
This file is part of the KDE documentation.
Documentation copyright © 1996-2020 The KDE developers.
Generated on Mon Jun 22 2020 13:13:44 by doxygen 1.8.7 written by Dimitri van Heesch, © 1997-2006

KDE's Doxygen guidelines are available online.

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