Encapsulates the render context for a 3D point cloud rendering operation. More...

#include <qgspointcloudlayer3drenderer.h>

Inheritance diagram for QgsPointCloud3DRenderContext:

Public Member Functions
	QgsPointCloud3DRenderContext (const Qgs3DRenderContext &context, const QgsCoordinateTransform &coordinateTransform, std::unique_ptr< QgsPointCloud3DSymbol > symbol, double zValueScale, double zValueFixedOffset)
	Constructor for QgsPointCloud3DRenderContext.

	QgsPointCloud3DRenderContext (const QgsPointCloud3DRenderContext &rh)=delete

QgsPointCloudAttributeCollection	attributes () const
	Returns the attributes associated with the rendered block.

void	cancelRendering () const
	Cancels rendering.

QgsCoordinateTransform	coordinateTransform () const
	Returns the coordinate transform used to transform points from layer CRS to the map CRS.

QgsFeedback *	feedback () const
	Returns the feedback object used to cancel rendering and check if rendering was canceled.

template<typename T >
void	getAttribute (const char *data, std::size_t offset, QgsPointCloudAttribute::DataType type, T &value) const
	Retrieves the attribute value from data at the specified offset, where type indicates the original data type for the attribute.

QSet< int >	getFilteredOutValues () const
	Returns a set containing the filtered out values.

bool	isCanceled () const
	Returns `true` if the rendering is canceled.

QgsRectangle	layerExtent () const
	Returns the 3D scene's extent in layer crs.

QgsPointCloud3DRenderContext &	operator= (const QgsPointCloud3DRenderContext &)=delete

void	setAttributes (const QgsPointCloudAttributeCollection &attributes)
	Sets the attributes associated with the rendered block.

void	setCoordinateTransform (const QgsCoordinateTransform &coordinateTransform)
	Sets the coordinate transform used to transform points from layer CRS to the map CRS.

void	setFilteredOutCategories (const QgsPointCloudCategoryList &categories)
	Sets the list of categories of the classification that won't be rendered.

void	setSymbol (QgsPointCloud3DSymbol *symbol)
	Sets the symbol used for rendering the point cloud Takes ownership over the passed symbol.

QgsPointCloud3DSymbol *	symbol () const
	Returns the symbol used for rendering the point cloud.

double	zValueFixedOffset () const
	Returns any constant offset which must be applied to z values taken from the point cloud index.

double	zValueScale () const
	Returns any constant scaling factor which must be applied to z values taken from the point cloud index.

Public Member Functions inherited from Qgs3DRenderContext
	Qgs3DRenderContext ()=default

QgsCoordinateReferenceSystem	crs () const
	Returns the coordinate reference system used in the 3D scene.

QgsExpressionContext &	expressionContext ()
	Gets the expression context.

const QgsExpressionContext &	expressionContext () const
	Gets the expression context (const version).

QgsRectangle	extent () const
	Returns the 3D scene's 2D extent in the 3D scene's CRS.

float	fieldOfView () const
	Returns the camera lens' field of view.

QgsVector3D	mapToWorldCoordinates (const QgsVector3D &mapCoords) const
	Converts map coordinates to 3D world coordinates (applies offset and turns (x,y,z) into (x,-z,y)).

QgsVector3D	origin () const
	Returns coordinates in map CRS at which 3D scene has origin (0,0,0)

double	outputDpi () const
	Returns DPI used for conversion between real world units (e.g.

QColor	selectionColor () const
	Returns color used for selected features.

void	setExpressionContext (const QgsExpressionContext &context)
	Sets the expression context.

const QgsDateTimeRange &	temporalRange () const
	Returns the temporal range for the map.

QgsTerrainGenerator *	terrainGenerator () const
	Returns the terrain generator.

bool	terrainRenderingEnabled () const
	Returns whether the 2D terrain surface will be rendered.

double	terrainVerticalScale () const
	Returns vertical scale (exaggeration) of terrain.

QgsCoordinateTransformContext	transformContext () const
	Returns the coordinate transform context, which stores various information regarding which datum transforms should be used when transforming points from a source to destination coordinate reference system.

QgsVector3D	worldToMapCoordinates (const QgsVector3D &worldCoords) const
	Converts 3D world coordinates to map coordinates (applies offset and turns (x,y,z) into (x,-z,y)).

Additional Inherited Members
Static Public Member Functions inherited from Qgs3DRenderContext
static Qgs3DRenderContext	fromMapSettings (const Qgs3DMapSettings *mapSettings)
	Creates an initialized Qgs3DRenderContext instance from given Qgs3DMapSettings.

Detailed Description

Encapsulates the render context for a 3D point cloud rendering operation.

Since: QGIS 3.18

Definition at line 41 of file qgspointcloudlayer3drenderer.h.

Constructor & Destructor Documentation

◆ QgsPointCloud3DRenderContext() [1/2]

QgsPointCloud3DRenderContext::QgsPointCloud3DRenderContext	(	const Qgs3DRenderContext &	context,
		const QgsCoordinateTransform &	coordinateTransform,
		std::unique_ptr< QgsPointCloud3DSymbol >	symbol,
		double	zValueScale,
		double	zValueFixedOffset
	)

Constructor for QgsPointCloud3DRenderContext.

The zValueScale argument specifies any constant scaling factor which must be applied to z values taken from the point cloud index.

The zValueFixedOffset argument specifies any constant offset value which must be added to z values taken from the point cloud index.

Definition at line 29 of file qgspointcloudlayer3drenderer.cpp.

◆ QgsPointCloud3DRenderContext() [2/2]

QgsPointCloud3DRenderContext::QgsPointCloud3DRenderContext ( const QgsPointCloud3DRenderContext & rh )

delete

Member Function Documentation

◆ attributes()

QgsPointCloudAttributeCollection QgsPointCloud3DRenderContext::attributes ( ) const

inline

Returns the attributes associated with the rendered block.

See also: setAttributes()

Definition at line 65 of file qgspointcloudlayer3drenderer.h.

◆ cancelRendering()

void QgsPointCloud3DRenderContext::cancelRendering ( ) const

Cancels rendering.

See also: isCanceled()

Definition at line 74 of file qgspointcloudlayer3drenderer.cpp.

◆ coordinateTransform()

QgsCoordinateTransform QgsPointCloud3DRenderContext::coordinateTransform ( ) const

inline

Returns the coordinate transform used to transform points from layer CRS to the map CRS.

Definition at line 181 of file qgspointcloudlayer3drenderer.h.

◆ feedback()

QgsFeedback * QgsPointCloud3DRenderContext::feedback ( ) const

inline

Returns the feedback object used to cancel rendering and check if rendering was canceled.

Definition at line 186 of file qgspointcloudlayer3drenderer.h.

◆ getAttribute()

template<typename T >

void QgsPointCloud3DRenderContext::getAttribute	(	const char *	data,
		std::size_t	offset,
		QgsPointCloudAttribute::DataType	type,
		T &	value
	)		const

inline

Retrieves the attribute value from data at the specified offset, where type indicates the original data type for the attribute.

Definition at line 105 of file qgspointcloudlayer3drenderer.h.

◆ getFilteredOutValues()

QSet< int > QgsPointCloud3DRenderContext::getFilteredOutValues ( ) const

Returns a set containing the filtered out values.

See also: setFilteredOutCategories()

Definition at line 55 of file qgspointcloudlayer3drenderer.cpp.

◆ isCanceled()

bool QgsPointCloud3DRenderContext::isCanceled ( ) const

Returns true if the rendering is canceled.

Definition at line 69 of file qgspointcloudlayer3drenderer.cpp.

◆ layerExtent()

QgsRectangle QgsPointCloud3DRenderContext::layerExtent ( ) const

inline

Returns the 3D scene's extent in layer crs.

Since: QGIS 3.30

Definition at line 192 of file qgspointcloudlayer3drenderer.h.

◆ operator=()

QgsPointCloud3DRenderContext & QgsPointCloud3DRenderContext::operator= ( const QgsPointCloud3DRenderContext & )

delete

◆ setAttributes()

void QgsPointCloud3DRenderContext::setAttributes ( const QgsPointCloudAttributeCollection & attributes )

Sets the attributes associated with the rendered block.

See also: attributes()

Definition at line 40 of file qgspointcloudlayer3drenderer.cpp.

◆ setCoordinateTransform()

void QgsPointCloud3DRenderContext::setCoordinateTransform ( const QgsCoordinateTransform & coordinateTransform )

Sets the coordinate transform used to transform points from layer CRS to the map CRS.

Definition at line 63 of file qgspointcloudlayer3drenderer.cpp.

◆ setFilteredOutCategories()

void QgsPointCloud3DRenderContext::setFilteredOutCategories ( const QgsPointCloudCategoryList & categories )

Sets the list of categories of the classification that won't be rendered.

See also: getFilteredOutValues()

Definition at line 50 of file qgspointcloudlayer3drenderer.cpp.

◆ setSymbol()

void QgsPointCloud3DRenderContext::setSymbol ( QgsPointCloud3DSymbol * symbol )

Sets the symbol used for rendering the point cloud Takes ownership over the passed symbol.

See also: symbol()

Definition at line 45 of file qgspointcloudlayer3drenderer.cpp.

◆ symbol()

QgsPointCloud3DSymbol * QgsPointCloud3DRenderContext::symbol ( ) const

inline

Returns the symbol used for rendering the point cloud.

See also: setSymbol()

Definition at line 79 of file qgspointcloudlayer3drenderer.h.

◆ zValueFixedOffset()

double QgsPointCloud3DRenderContext::zValueFixedOffset ( ) const

inline

Returns any constant offset which must be applied to z values taken from the point cloud index.

Note: Scaling of z values via zValueScale() should be applied before the zValueFixedOffset().

Definition at line 160 of file qgspointcloudlayer3drenderer.h.

◆ zValueScale()

double QgsPointCloud3DRenderContext::zValueScale ( ) const

inline

Returns any constant scaling factor which must be applied to z values taken from the point cloud index.

Note: Scaling of z values should be applied before the zValueFixedOffset().

Definition at line 153 of file qgspointcloudlayer3drenderer.h.

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

/build/qgis-3.41.0+git20241122+3440c17df1d+99sid/src/3d/qgspointcloudlayer3drenderer.h
/build/qgis-3.41.0+git20241122+3440c17df1d+99sid/src/3d/qgspointcloudlayer3drenderer.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QgsPointCloud3DRenderContext() [1/2]

◆ QgsPointCloud3DRenderContext() [2/2]

Member Function Documentation

◆ attributes()

◆ cancelRendering()

◆ coordinateTransform()

◆ feedback()

◆ getAttribute()

◆ getFilteredOutValues()

◆ isCanceled()

◆ layerExtent()

◆ operator=()

◆ setAttributes()

◆ setCoordinateTransform()

◆ setFilteredOutCategories()

◆ setSymbol()

◆ symbol()

◆ zValueFixedOffset()

◆ zValueScale()