3 Implementation of terrain generator that uses a raster layer with DEM to build terrain. More...

#include <qgsdemterraingenerator.h>

Inheritance diagram for QgsDemTerrainGenerator:

Public Member Functions
	QgsDemTerrainGenerator ()=default
	Constructor for QgsDemTerrainGenerator. More...

	~QgsDemTerrainGenerator () override

QgsTerrainGenerator *	clone () const override
	Makes a copy of the current instance. More...

QgsChunkLoader *	createChunkLoader (QgsChunkNode *node) const override

QgsRectangle	extent () const override
	extent of the terrain in terrain's CRS More...

float	heightAt (double x, double y, const Qgs3DMapSettings &map) const override
	Returns height at (x,y) in terrain's CRS. More...

QgsDemHeightMapGenerator *	heightMapGenerator ()
	Returns height map generator object - takes care of extraction of elevations from the layer) More...

QgsRasterLayer *	layer () const
	Returns raster layer with elevation model to be used for terrain generation. More...

void	readXml (const QDomElement &elem) override
	Read terrain generator's configuration from XML. More...

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

void	resolveReferences (const QgsProject &project) override
	After read of XML, resolve references to any layers that have been read as layer IDs. More...

void	setCrs (const QgsCoordinateReferenceSystem &crs, const QgsCoordinateTransformContext &context)
	Sets CRS of the terrain. More...

void	setLayer (QgsRasterLayer *layer)
	Sets raster layer with elevation model to be used for terrain generation. More...

void	setResolution (int resolution)
	Sets resolution of the generator (how many elevation samples on one side of a terrain tile) More...

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

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

Type	type () const override
	What texture generator implementation is this. More...

void	writeXml (QDomElement &elem) const override
	Write terrain generator's configuration to XML. More...

Public Member Functions inherited from QgsTerrainGenerator
QgsCoordinateReferenceSystem	crs () const
	Returns CRS of the terrain. More...

virtual QgsAABB	rootChunkBbox (const Qgs3DMapSettings &map) const
	Returns bounding box of the root chunk. More...

virtual float	rootChunkError (const Qgs3DMapSettings &map) const
	Returns error of the root chunk in world coordinates. More...

virtual void	rootChunkHeightRange (float &hMin, float &hMax) const
	Returns height range of the root chunk in world coordinates. More...

void	setTerrain (QgsTerrainEntity *t)
	Sets terrain entity for the generator (does not transfer ownership) More...

const QgsTilingScheme &	tilingScheme () const
	Returns tiling scheme of the terrain. More...

Additional Inherited Members
Public Types inherited from QgsTerrainGenerator
enum	Type { Flat, Dem, QuantizedMesh }
	Enumeration of the available terrain generators. More...

Static Public Member Functions inherited from QgsTerrainGenerator
static QString	typeToString (Type type)
	Converts terrain generator type enumeration into a string. More...

Protected Attributes inherited from QgsTerrainGenerator
QgsTerrainEntity *	mTerrain = nullptr

QgsTilingScheme	mTerrainTilingScheme
	Tiling scheme of the terrain. More...

Detailed Description

3 Implementation of terrain generator that uses a raster layer with DEM to build terrain.

Since: QGIS 3.0

Definition at line 36 of file qgsdemterraingenerator.h.

Constructor & Destructor Documentation

◆ QgsDemTerrainGenerator()

QgsDemTerrainGenerator::QgsDemTerrainGenerator ( )

default

Constructor for QgsDemTerrainGenerator.

◆ ~QgsDemTerrainGenerator()

QgsDemTerrainGenerator::~QgsDemTerrainGenerator ( )

override

Definition at line 22 of file qgsdemterraingenerator.cpp.

Member Function Documentation

◆ clone()

QgsTerrainGenerator * QgsDemTerrainGenerator::clone ( ) const

overridevirtual

Makes a copy of the current instance.

Implements QgsTerrainGenerator.

Definition at line 45 of file qgsdemterraingenerator.cpp.

◆ createChunkLoader()

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

override

Definition at line 99 of file qgsdemterraingenerator.cpp.

◆ extent()

QgsRectangle QgsDemTerrainGenerator::extent ( ) const

overridevirtual

extent of the terrain in terrain's CRS

Implements QgsTerrainGenerator.

Definition at line 61 of file qgsdemterraingenerator.cpp.

◆ heightAt()

float QgsDemTerrainGenerator::heightAt	(	double	x,
		double	y,
		const Qgs3DMapSettings &	map
	)		const

overridevirtual

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

Reimplemented from QgsTerrainGenerator.

Definition at line 66 of file qgsdemterraingenerator.cpp.

◆ heightMapGenerator()

QgsDemHeightMapGenerator* QgsDemTerrainGenerator::heightMapGenerator ( )

inline

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

Definition at line 62 of file qgsdemterraingenerator.h.

◆ layer()

QgsRasterLayer * QgsDemTerrainGenerator::layer ( ) const

Returns raster layer with elevation model to be used for terrain generation.

Definition at line 33 of file qgsdemterraingenerator.cpp.

◆ readXml()

void QgsDemTerrainGenerator::readXml ( const QDomElement & elem )

overridevirtual

Read terrain generator's configuration from XML.

Implements QgsTerrainGenerator.

Definition at line 84 of file qgsdemterraingenerator.cpp.

◆ resolution()

int QgsDemTerrainGenerator::resolution ( ) const

inline

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

Definition at line 54 of file qgsdemterraingenerator.h.

◆ resolveReferences()

void QgsDemTerrainGenerator::resolveReferences ( const QgsProject & project )

overridevirtual

After read of XML, resolve references to any layers that have been read as layer IDs.

Reimplemented from QgsTerrainGenerator.

Definition at line 93 of file qgsdemterraingenerator.cpp.

◆ setCrs()

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

Sets CRS of the terrain.

Definition at line 38 of file qgsdemterraingenerator.cpp.

◆ setLayer()

void QgsDemTerrainGenerator::setLayer ( QgsRasterLayer * layer )

Sets raster layer with elevation model to be used for terrain generation.

Definition at line 27 of file qgsdemterraingenerator.cpp.

◆ setResolution()

void QgsDemTerrainGenerator::setResolution ( int resolution )

inline

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

Definition at line 52 of file qgsdemterraingenerator.h.

◆ setSkirtHeight()

void QgsDemTerrainGenerator::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 57 of file qgsdemterraingenerator.h.

◆ skirtHeight()

float QgsDemTerrainGenerator::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 59 of file qgsdemterraingenerator.h.

◆ type()

QgsTerrainGenerator::Type QgsDemTerrainGenerator::type ( ) const

overridevirtual

What texture generator implementation is this.

Implements QgsTerrainGenerator.

Definition at line 56 of file qgsdemterraingenerator.cpp.

◆ writeXml()

void QgsDemTerrainGenerator::writeXml ( QDomElement & elem ) const

overridevirtual

Write terrain generator's configuration to XML.

Implements QgsTerrainGenerator.

Definition at line 75 of file qgsdemterraingenerator.cpp.

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

/tmp/buildd/qgis-3.6.0+99unstable/src/3d/terrain/qgsdemterraingenerator.h
/tmp/buildd/qgis-3.6.0+99unstable/src/3d/terrain/qgsdemterraingenerator.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QgsDemTerrainGenerator()

◆ ~QgsDemTerrainGenerator()

Member Function Documentation

◆ clone()

◆ createChunkLoader()

◆ extent()

◆ heightAt()

◆ heightMapGenerator()

◆ layer()

◆ readXml()

◆ resolution()

◆ resolveReferences()

◆ setCrs()

◆ setLayer()

◆ setResolution()

◆ setSkirtHeight()

◆ skirtHeight()

◆ type()

◆ writeXml()