Marble::CylindricalProjection

Search for usage in LXR

Marble::CylindricalProjection Class Reference

#include <CylindricalProjection.h>

Inheritance diagram for Marble::CylindricalProjection:

Public Member Functions

QPainterPath mapShape (const ViewportParams *viewport) const override
 
bool repeatableX () const override
 
virtual bool screenCoordinates (const GeoDataCoordinates &coordinates, const ViewportParams *viewport, qreal *x, qreal &y, int &pointRepeatNum, const QSizeF &size, bool &globeHidesPoint) const=0
 
bool screenCoordinates (const GeoDataCoordinates &geopoint, 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 GeoDataLineString &lineString, const ViewportParams *viewport, QVector< QPolygonF * > &polygons) const override
 
virtual bool screenCoordinates (const GeoDataLineString &lineString, const ViewportParams *viewport, QVector< QPolygonF * > &polygons) const=0
 
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 qreal clippingRadius () const
 
virtual QString description () const =0
 
virtual bool geoCoordinates (const int x, const int y, const ViewportParams *viewport, qreal &lon, qreal &lat, GeoDataCoordinates::Unit unit=GeoDataCoordinates::Degree) const =0
 
virtual QIcon icon () const =0
 
virtual bool isClippedToSphere () const
 
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
 
qreal maxLat () const
 
virtual qreal maxValidLat () const
 
qreal minLat () const
 
virtual qreal minValidLat () const
 
virtual QString name () const =0
 
virtual PreservationType preservationType () const
 
virtual bool screenCoordinates (const GeoDataCoordinates &coordinates, const ViewportParams *viewport, qreal *x, qreal &y, int &pointRepeatNum, const QSizeF &size, bool &globeHidesPoint) const =0
 
bool screenCoordinates (const GeoDataCoordinates &geopoint, 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 qreal lon, const qreal lat, const ViewportParams *viewport, qreal &x, qreal &y) const
 
void setMaxLat (qreal maxLat)
 
void setMinLat (qreal minLat)
 

Protected Member Functions

 CylindricalProjection (CylindricalProjectionPrivate *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 base class for the Equirectangular and Mercator projections in Marble.

Definition at line 28 of file CylindricalProjection.h.

Member Function Documentation

◆ mapShape()

QPainterPath Marble::CylindricalProjection::mapShape ( const ViewportParams viewport) const
overridevirtual

Returns the shape/outline of a map projection.

This call allows e.g. to draw the default background color of the map itself.

Example: For an azimuthal projection a circle is returned at low zoom values.

Implements Marble::AbstractProjection.

Definition at line 49 of file CylindricalProjection.cpp.

◆ repeatableX()

bool Marble::CylindricalProjection::repeatableX ( ) const
inlineoverridevirtual

Returns whether the projection allows for wrapping in x direction (along the longitude scale).

Example: Cylindrical projections allow for repeating.

Reimplemented from Marble::AbstractProjection.

Definition at line 37 of file CylindricalProjection.h.

◆ screenCoordinates() [1/3]

virtual bool Marble::AbstractProjection::screenCoordinates

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
sizethe size
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

◆ screenCoordinates() [2/3]

virtual bool Marble::AbstractProjection::screenCoordinates

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

Parameters
geopointthe point on earth, including altitude, that we want the coordinates for.
viewportthe viewport parameters
xthe x coordinate of the pixel is returned through this parameter
ythe y coordinate of the pixel is returned through this parameter
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

◆ screenCoordinates() [3/3]

bool AbstractProjection::screenCoordinates

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

Parameters
lonthe lon coordinate of the requested pixel position in radians
latthe lat coordinate of the requested pixel position in radians
viewportthe viewport parameters
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
See also
ViewportParams

Definition at line 154 of file AbstractProjection.cpp.

◆ traversablePoles()

bool Marble::CylindricalProjection::traversablePoles ( ) const
inlineoverridevirtual

Returns whether the projection allows to navigate seamlessly "over" the pole.

Example: Azimuthal projections.

Reimplemented from Marble::AbstractProjection.

Definition at line 39 of file CylindricalProjection.h.


The documentation for this class was generated from the following files:
This file is part of the KDE documentation.
Documentation copyright © 1996-2022 The KDE developers.
Generated on Sun Nov 27 2022 03:55:00 by doxygen 1.8.17 written by Dimitri van Heesch, © 1997-2006

KDE's Doxygen guidelines are available online.