Marble::GeoSceneAbstractTileProjection Class Reference

#include <GeoSceneAbstractTileProjection.h>

Inheritance diagram for Marble::GeoSceneAbstractTileProjection:

Public Types
enum	Type { Equirectangular , Mercator }

Public Member Functions
	GeoSceneAbstractTileProjection ()
GeoDataLatLonBox	geoCoordinates (const TileId &tileId) const
virtual GeoDataLatLonBox	geoCoordinates (int zoomLevel, int x, int y) const =0
int	levelZeroColumns () const
int	levelZeroRows () const
void	setLevelZeroColumns (int levelZeroColumns)
void	setLevelZeroRows (int levelZeroRows)
virtual QRect	tileIndexes (const GeoDataLatLonBox &latLonBox, int zoomLevel) const =0
virtual GeoSceneAbstractTileProjection::Type	type () const =0

Detailed Description

A base class for projections between tile indizes and geo coordinates in Marble.

For map tiling with indizes in x and y dimensions and 1 or multiple zoomlevels. The lowest zoomlevel is 0.

Definition at line 29 of file GeoSceneAbstractTileProjection.h.

Member Enumeration Documentation

Type

enum Marble::GeoSceneAbstractTileProjection::Type

Definition at line 32 of file GeoSceneAbstractTileProjection.h.

Constructor & Destructor Documentation

GeoSceneAbstractTileProjection()

Marble::GeoSceneAbstractTileProjection::GeoSceneAbstractTileProjection

(

)

Construct a new GeoSceneAbstractTileProjection.

Definition at line 31 of file GeoSceneAbstractTileProjection.cpp.

Member Function Documentation

geoCoordinates() [1/2]

GeoDataLatLonBox Marble::GeoSceneAbstractTileProjection::geoCoordinates

(

const TileId &

tileId

)

const

Get the boundary geo coordinates corresponding to a tile.

If tildId has values out-of-bounds, the behaviour is undefined.

Parameters

tileId

the id of the tile

Returns

geographic bounding box covered by the given tile

Definition at line 58 of file GeoSceneAbstractTileProjection.cpp.

geoCoordinates() [2/2]

virtual GeoDataLatLonBox Marble::GeoSceneAbstractTileProjection::geoCoordinates ( int zoomLevel, int x, int y ) const

pure virtual

Get the boundary geo coordinates corresponding to a tile.

If x, y or zoomLevel have values out-of-bounds, the behaviour is undefined.

Parameters

zoomLevel	the zoomlevel of the tile
x	the x index of the tile
y	the y index of the tile

Returns

geographic bounding box covered by the given tile

Implemented in Marble::GeoSceneEquirectTileProjection, and Marble::GeoSceneMercatorTileProjection.

levelZeroColumns()

int Marble::GeoSceneAbstractTileProjection::levelZeroColumns

(

)

const

Returns

the number of tiles on level 0 in x dimension

Definition at line 38 of file GeoSceneAbstractTileProjection.cpp.

levelZeroRows()

int Marble::GeoSceneAbstractTileProjection::levelZeroRows

(

)

const

Returns

the number of tiles on level 0 in y dimension

Definition at line 48 of file GeoSceneAbstractTileProjection.cpp.

setLevelZeroColumns()

void Marble::GeoSceneAbstractTileProjection::setLevelZeroColumns

(

int

levelZeroColumns

)

Sets the number of tiles on level 0 in x dimension.

Parameters

levelZeroColumns

new number of tiles on level 0 in x dimension

Default value of the levelZeroColumns property is 1.

Definition at line 43 of file GeoSceneAbstractTileProjection.cpp.

setLevelZeroRows()

void Marble::GeoSceneAbstractTileProjection::setLevelZeroRows

(

int

levelZeroRows

)

Sets the number of tiles on level 0 in y dimension.

Parameters

levelZeroRows

new number of tiles on level 0 in y dimension

Default value of the levelZeroRows property is 1.

Definition at line 53 of file GeoSceneAbstractTileProjection.cpp.

tileIndexes()

virtual QRect Marble::GeoSceneAbstractTileProjection::tileIndexes ( const GeoDataLatLonBox & latLonBox, int zoomLevel ) const

pure virtual

Get the tile indexes which cover the given geographical box.

If latLonBox or zoomLevel have values out-of-bounds, the behaviour is undefined.

Parameters

latLonBox	the geo coordinates of the requested tiles
zoomLevel	the zoomlevel of the requested tiles

Returns

range of tile indexes covering given geographical box at given zoom level

Implemented in Marble::GeoSceneEquirectTileProjection, and Marble::GeoSceneMercatorTileProjection.

type()

virtual GeoSceneAbstractTileProjection::Type Marble::GeoSceneAbstractTileProjection::type ( ) const

pure virtual

Implemented in Marble::GeoSceneEquirectTileProjection, and Marble::GeoSceneMercatorTileProjection.

---

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

• GeoSceneAbstractTileProjection.h
• GeoSceneAbstractTileProjection.cpp