QgsOnlineTerrainGenerator Class Reference

3 More...

#include <qgsonlineterraingenerator.h>

Inheritance diagram for QgsOnlineTerrainGenerator:

Public Member Functions
	QgsOnlineTerrainGenerator ()
	~QgsOnlineTerrainGenerator () override
QgsTerrainGenerator *	clone () const override SIP_FACTORY
	Makes a copy of the current instance.
QgsChunkLoader *	createChunkLoader (QgsChunkNode *node) const override SIP_FACTORY
QgsCoordinateReferenceSystem	crs () const override
	Returns CRS of the terrain.
float	heightAt (double x, double y, const Qgs3DRenderContext &context) const override
	Returns height at (x,y) in map's CRS.
QgsDemHeightMapGenerator *	heightMapGenerator ()
	Returns height map generator object - takes care of extraction of elevations from the layer)
void	readXml (const QDomElement &elem) override
	Read terrain generator's configuration from XML.
int	resolution () const
	Returns resolution of the generator (how many elevation samples on one side of a terrain tile)
QgsRectangle	rootChunkExtent () const override
	extent of the terrain's root chunk in terrain's CRS
void	setCrs (const QgsCoordinateReferenceSystem &crs, const QgsCoordinateTransformContext &context)
	Sets CRS of the terrain.
void	setExtent (const QgsRectangle &extent) override
	sets the extent of the terrain in terrain's CRS
void	setResolution (int resolution)
	Sets resolution of the generator (how many elevation samples on one side of a terrain tile)
void	setSkirtHeight (float skirtHeight)
	Sets skirt height (in world units). Skirts at the edges of terrain tiles help hide cracks between adjacent tiles.
float	skirtHeight () const
	Returns skirt height (in world units). Skirts at the edges of terrain tiles help hide cracks between adjacent tiles.
Type	type () const override
	What texture generator implementation is this.
void	writeXml (QDomElement &elem) const override
	Write terrain generator's configuration to XML.
Public Member Functions inherited from QgsTerrainGenerator
virtual QgsRectangle	extent () const
	extent of the terrain in terrain's CRS, might be non-square and smaller than rootChunkExtent()
bool	isValid () const
	Returns whether the terrain generator is valid.
virtual void	resolveReferences (const QgsProject &project)
	After read of XML, resolve references to any layers that have been read as layer IDs.
virtual QgsBox3D	rootChunkBox3D (const Qgs3DMapSettings &map) const
	Returns 3D box (in map coordinates) of the root chunk.
virtual float	rootChunkError (const Qgs3DMapSettings &map) const
	Returns error of the root chunk in world coordinates.
virtual void	rootChunkHeightRange (float &hMin, float &hMax) const
	Returns height range of the root chunk in world coordinates.
virtual void	setTerrain (QgsTerrainEntity *t)
	Sets terrain entity for the generator (does not transfer ownership)
const QgsTilingScheme &	tilingScheme () const
	Returns tiling scheme of the terrain.

Additional Inherited Members
Public Types inherited from QgsTerrainGenerator
enum	Type {   Flat , Dem , Online , Mesh ,   QuantizedMesh }
	Enumeration of the available terrain generators. More...
Signals inherited from QgsTerrainGenerator
void	terrainChanged ()
	Emitted when the terrain changed (for example, raster DEM or mesh have data changed)
Static Public Member Functions inherited from QgsTerrainGenerator
static QString	typeToString (Type type)
	Converts terrain generator type enumeration into a string.
Protected Attributes inherited from QgsTerrainGenerator
QgsRectangle	mExtent
bool	mIsValid = true
QgsTerrainEntity *	mTerrain = nullptr
QgsTilingScheme	mTerrainTilingScheme
	Tiling scheme of the terrain.

Detailed Description

3

Implementation of terrain generator that uses online resources to download heightmaps.

Note

Not available in Python bindings

Since

QGIS 3.8

Definition at line 37 of file qgsonlineterraingenerator.h.

Constructor & Destructor Documentation

QgsOnlineTerrainGenerator()

QgsOnlineTerrainGenerator::QgsOnlineTerrainGenerator ( )

default

~QgsOnlineTerrainGenerator()

QgsOnlineTerrainGenerator::~QgsOnlineTerrainGenerator ( )

overridedefault

Member Function Documentation

clone()

QgsTerrainGenerator * QgsOnlineTerrainGenerator::clone ( ) const

overridevirtual

Makes a copy of the current instance.

Implements QgsTerrainGenerator.

Definition at line 31 of file qgsonlineterraingenerator.cpp.

createChunkLoader()

QgsChunkLoader * QgsOnlineTerrainGenerator::createChunkLoader ( QgsChunkNode *  node ) const

override

Definition at line 26 of file qgsonlineterraingenerator.cpp.

crs()

QgsCoordinateReferenceSystem QgsOnlineTerrainGenerator::crs ( ) const

inlineoverridevirtual

Returns CRS of the terrain.

Reimplemented from QgsTerrainGenerator.

Definition at line 47 of file qgsonlineterraingenerator.h.

heightAt()

float QgsOnlineTerrainGenerator::heightAt ( double  x, double  y, const Qgs3DRenderContext &  context  ) const

overridevirtual

Returns height at (x,y) in map's CRS.

Reimplemented from QgsTerrainGenerator.

Definition at line 53 of file qgsonlineterraingenerator.cpp.

heightMapGenerator()

QgsDemHeightMapGenerator * QgsOnlineTerrainGenerator::heightMapGenerator ( )

inline

Returns height map generator object - takes care of extraction of elevations from the layer)

Definition at line 60 of file qgsonlineterraingenerator.h.

readXml()

void QgsOnlineTerrainGenerator::readXml ( const QDomElement &  elem )

overridevirtual

Read terrain generator's configuration from XML.

Implements QgsTerrainGenerator.

Definition at line 78 of file qgsonlineterraingenerator.cpp.

resolution()

int QgsOnlineTerrainGenerator::resolution ( ) const

inline

Returns resolution of the generator (how many elevation samples on one side of a terrain tile)

Definition at line 52 of file qgsonlineterraingenerator.h.

rootChunkExtent()

QgsRectangle QgsOnlineTerrainGenerator::rootChunkExtent ( ) const

overridevirtual

extent of the terrain's root chunk in terrain's CRS

Implements QgsTerrainGenerator.

Definition at line 48 of file qgsonlineterraingenerator.cpp.

setCrs()

void QgsOnlineTerrainGenerator::setCrs	(	const QgsCoordinateReferenceSystem &	crs,
		const QgsCoordinateTransformContext &	context
	)

Sets CRS of the terrain.

Definition at line 94 of file qgsonlineterraingenerator.cpp.

setExtent()

void QgsOnlineTerrainGenerator::setExtent ( const QgsRectangle &  extent )

overridevirtual

sets the extent of the terrain in terrain's CRS

Reimplemented from QgsTerrainGenerator.

Definition at line 101 of file qgsonlineterraingenerator.cpp.

setResolution()

void QgsOnlineTerrainGenerator::setResolution ( int  resolution )

inline

Sets resolution of the generator (how many elevation samples on one side of a terrain tile)

Definition at line 50 of file qgsonlineterraingenerator.h.

setSkirtHeight()

void QgsOnlineTerrainGenerator::setSkirtHeight ( float  skirtHeight )

inline

Sets skirt height (in world units). Skirts at the edges of terrain tiles help hide cracks between adjacent tiles.

Definition at line 55 of file qgsonlineterraingenerator.h.

skirtHeight()

float QgsOnlineTerrainGenerator::skirtHeight ( ) const

inline

Returns skirt height (in world units). Skirts at the edges of terrain tiles help hide cracks between adjacent tiles.

Definition at line 57 of file qgsonlineterraingenerator.h.

type()

QgsTerrainGenerator::Type QgsOnlineTerrainGenerator::type ( ) const

overridevirtual

What texture generator implementation is this.

Implements QgsTerrainGenerator.

Definition at line 43 of file qgsonlineterraingenerator.cpp.

writeXml()

void QgsOnlineTerrainGenerator::writeXml ( QDomElement &  elem ) const

overridevirtual

Write terrain generator's configuration to XML.

Implements QgsTerrainGenerator.

Definition at line 62 of file qgsonlineterraingenerator.cpp.

---

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

• /build/qgis-3.41.0+git20241119+45a0abf3bec+99sid/src/3d/terrain/qgsonlineterraingenerator.h
• /build/qgis-3.41.0+git20241119+45a0abf3bec+99sid/src/3d/terrain/qgsonlineterraingenerator.cpp