Entity that encapsulates our 3D scene - contains all other entities (such as terrain) as children. More...

#include <qgs3dmapscene.h>

Inheritance diagram for Qgs3DMapScene:

Public Types
enum	SceneState { Ready, Updating }
	Enumeration of possible states of the 3D scene. More...

Public Slots
void	updateTemporal ()
	Updates the temporale entities. More...

Signals
void	fpsCountChanged (float fpsCount)
	Emitted when the FPS count changes. More...

void	fpsCounterEnabledChanged (bool fpsCounterEnabled)
	Emitted when the FPS counter is activated or deactivated. More...

void	sceneStateChanged ()
	Emitted when the scene's state has changed. More...

void	terrainEntityChanged ()
	Emitted when the current terrain entity is replaced by a new one. More...

void	terrainPendingJobsCountChanged ()
	Emitted when the number of terrain's pending jobs changes. More...

void	totalPendingJobsCountChanged ()
	Emitted when the total number of pending jobs changes. More...

void	viewed2DExtentFrom3DChanged (QVector< QgsPointXY > extent)
	Emitted when the viewed 2D extent seen by the 3D camera has changed. More...

Public Member Functions
	Qgs3DMapScene (Qgs3DMapSettings &map, QgsAbstract3DEngine *engine)
	Constructs a 3D scene based on map settings and Qt 3D renderer configuration. More...

QgsCameraController *	cameraController ()
	Returns camera controller. More...

QgsAbstract3DEngine *	engine ()
	Returns the abstract 3D engine. More...

void	exportScene (const Qgs3DMapExportSettings &exportSettings)
	Exports the scene according to the scene export settings. More...

Qgs3DAxis *	get3DAxis ()
	Returns the 3D axis object. More...

QVector< const QgsChunkNode * >	getLayerActiveChunkNodes (QgsMapLayer *layer)
	Returns the active chunk nodes of layer. More...

void	registerPickHandler (Qgs3DMapScenePickHandler *pickHandler)
	Registers an object that will get results of pick events on 3D entities. Does not take ownership of the pick handler. Adds object picker components to 3D entities. More...

QgsRectangle	sceneExtent ()
	Returns the scene extent in the map's CRS. More...

SceneState	sceneState () const
	Returns the current state of the scene. More...

void	setViewFrom2DExtent (const QgsRectangle &extent)
	Resets camera view to show the extent extent (top view) More...

QgsTerrainEntity *	terrainEntity ()
	Returns terrain entity (may be temporarily `nullptr`) More...

int	terrainPendingJobsCount () const
	Returns number of pending jobs of the terrain entity. More...

int	totalPendingJobsCount () const
	Returns number of pending jobs for all chunked entities. More...

void	unregisterPickHandler (Qgs3DMapScenePickHandler *pickHandler)
	Unregisters previously registered pick handler. Pick handler is not deleted. Also removes object picker components from 3D entities. More...

QVector< QgsPointXY >	viewFrustum2DExtent ()
	Calculates the 2D extent viewed by the 3D camera as the vertices of the viewed trapezoid. More...

void	viewZoomFull ()
	Resets camera view to show the whole scene (top view) More...

float	worldSpaceError (float epsilon, float distance)
	Given screen error (in pixels) and distance from camera (in 3D world coordinates), this function estimates the error in world space. More...

Detailed Description

Entity that encapsulates our 3D scene - contains all other entities (such as terrain) as children.

3

Note: Not available in Python bindings

Since: QGIS 3.0

Definition at line 70 of file qgs3dmapscene.h.

Member Enumeration Documentation

◆ SceneState

enum Qgs3DMapScene::SceneState

Enumeration of possible states of the 3D scene.

Enumerator
Ready	The scene is fully loaded/updated.
Updating	The scene is still being loaded/updated.

Definition at line 109 of file qgs3dmapscene.h.

Constructor & Destructor Documentation

◆ Qgs3DMapScene()

Qgs3DMapScene::Qgs3DMapScene	(	Qgs3DMapSettings &	map,
		QgsAbstract3DEngine *	engine
	)

Constructs a 3D scene based on map settings and Qt 3D renderer configuration.

Definition at line 88 of file qgs3dmapscene.cpp.

Member Function Documentation

◆ cameraController()

QgsCameraController* Qgs3DMapScene::cameraController ( )

inline

Returns camera controller.

Definition at line 78 of file qgs3dmapscene.h.

◆ engine()

QgsAbstract3DEngine* Qgs3DMapScene::engine ( )

inline

Returns the abstract 3D engine.

Since: QGIS 3.26

Definition at line 158 of file qgs3dmapscene.h.

◆ exportScene()

void Qgs3DMapScene::exportScene ( const Qgs3DMapExportSettings & exportSettings )

Exports the scene according to the scene export settings.

Definition at line 1120 of file qgs3dmapscene.cpp.

◆ fpsCountChanged

void Qgs3DMapScene::fpsCountChanged ( float fpsCount )

signal

Emitted when the FPS count changes.

◆ fpsCounterEnabledChanged

void Qgs3DMapScene::fpsCounterEnabledChanged ( bool fpsCounterEnabled )

signal

Emitted when the FPS counter is activated or deactivated.

◆ get3DAxis()

Qgs3DAxis* Qgs3DMapScene::get3DAxis ( )

inline

Returns the 3D axis object.

Since: QGIS 3.26

Definition at line 151 of file qgs3dmapscene.h.

◆ getLayerActiveChunkNodes()

QVector< const QgsChunkNode * > Qgs3DMapScene::getLayerActiveChunkNodes ( QgsMapLayer * layer )

Returns the active chunk nodes of layer.

Since: QGIS 3.18

Definition at line 1169 of file qgs3dmapscene.cpp.

◆ registerPickHandler()

void Qgs3DMapScene::registerPickHandler ( Qgs3DMapScenePickHandler * pickHandler )

Registers an object that will get results of pick events on 3D entities. Does not take ownership of the pick handler. Adds object picker components to 3D entities.

Definition at line 323 of file qgs3dmapscene.cpp.

◆ sceneExtent()

QgsRectangle Qgs3DMapScene::sceneExtent ( )

Returns the scene extent in the map's CRS.

Since: QGIS 3.20

Definition at line 1181 of file qgs3dmapscene.cpp.

◆ sceneState()

SceneState Qgs3DMapScene::sceneState ( ) const

inline

Returns the current state of the scene.

Definition at line 116 of file qgs3dmapscene.h.

◆ sceneStateChanged

void Qgs3DMapScene::sceneStateChanged ( )

signal

Emitted when the scene's state has changed.

◆ setViewFrom2DExtent()

void Qgs3DMapScene::setViewFrom2DExtent ( const QgsRectangle & extent )

Resets camera view to show the extent extent (top view)

Since: QGIS 3.26

Definition at line 256 of file qgs3dmapscene.cpp.

◆ terrainEntity()

QgsTerrainEntity* Qgs3DMapScene::terrainEntity ( )

inline

Returns terrain entity (may be temporarily nullptr)

Definition at line 80 of file qgs3dmapscene.h.

◆ terrainEntityChanged

void Qgs3DMapScene::terrainEntityChanged ( )

signal

Emitted when the current terrain entity is replaced by a new one.

◆ terrainPendingJobsCount()

int Qgs3DMapScene::terrainPendingJobsCount ( ) const

Returns number of pending jobs of the terrain entity.

Definition at line 310 of file qgs3dmapscene.cpp.

◆ terrainPendingJobsCountChanged

void Qgs3DMapScene::terrainPendingJobsCountChanged ( )

signal

Emitted when the number of terrain's pending jobs changes.

◆ totalPendingJobsCount()

int Qgs3DMapScene::totalPendingJobsCount ( ) const

Returns number of pending jobs for all chunked entities.

Since: QGIS 3.12

Definition at line 315 of file qgs3dmapscene.cpp.

◆ totalPendingJobsCountChanged

void Qgs3DMapScene::totalPendingJobsCountChanged ( )

signal

Emitted when the total number of pending jobs changes.

Since: QGIS 3.12

◆ unregisterPickHandler()

void Qgs3DMapScene::unregisterPickHandler ( Qgs3DMapScenePickHandler * pickHandler )

Unregisters previously registered pick handler. Pick handler is not deleted. Also removes object picker components from 3D entities.

Definition at line 338 of file qgs3dmapscene.cpp.

◆ updateTemporal

void Qgs3DMapScene::updateTemporal ( )

slot

Updates the temporale entities.

Definition at line 748 of file qgs3dmapscene.cpp.

◆ viewed2DExtentFrom3DChanged

void Qgs3DMapScene::viewed2DExtentFrom3DChanged ( QVector< QgsPointXY > extent )

signal

Emitted when the viewed 2D extent seen by the 3D camera has changed.

Since: QGIS 3.26

◆ viewFrustum2DExtent()

QVector< QgsPointXY > Qgs3DMapScene::viewFrustum2DExtent ( )

Calculates the 2D extent viewed by the 3D camera as the vertices of the viewed trapezoid.

Since: QGIS 3.26

Definition at line 279 of file qgs3dmapscene.cpp.

◆ viewZoomFull()

void Qgs3DMapScene::viewZoomFull ( )

Resets camera view to show the whole scene (top view)

Definition at line 247 of file qgs3dmapscene.cpp.

◆ worldSpaceError()

float Qgs3DMapScene::worldSpaceError	(	float	epsilon,
		float	distance
	)

Given screen error (in pixels) and distance from camera (in 3D world coordinates), this function estimates the error in world space.

Takes into account camera's field of view and the screen (3D view) size.

Definition at line 369 of file qgs3dmapscene.cpp.

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

/build/qgis-3.26.3+32focal/src/3d/qgs3dmapscene.h
/build/qgis-3.26.3+32focal/src/3d/qgs3dmapscene.cpp

Public Types

Public Slots

Signals

Public Member Functions

Detailed Description

Member Enumeration Documentation

◆ SceneState

Constructor & Destructor Documentation

◆ Qgs3DMapScene()

Member Function Documentation

◆ cameraController()

◆ engine()

◆ exportScene()

◆ fpsCountChanged

◆ fpsCounterEnabledChanged

◆ get3DAxis()

◆ getLayerActiveChunkNodes()

◆ registerPickHandler()

◆ sceneExtent()

◆ sceneState()

◆ sceneStateChanged

◆ setViewFrom2DExtent()

◆ terrainEntity()

◆ terrainEntityChanged

◆ terrainPendingJobsCount()

◆ terrainPendingJobsCountChanged

◆ totalPendingJobsCount()

◆ totalPendingJobsCountChanged

◆ unregisterPickHandler()

◆ updateTemporal

◆ viewed2DExtentFrom3DChanged

◆ viewFrustum2DExtent()

◆ viewZoomFull()

◆ worldSpaceError()