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5e33ee4a57
Create a small, cheap to copy (non-qobject) class Qgs3DMapSettingsSnapshot which is designed to store just cheap properties of Qgs3DMapSettings. Then use this object wherever possible to avoid accessing the (non-thread safe) Qgs3DMapSettings object for retrieval of simple map properties (eg crs, extent, ...) Refs https://github.com/qgis/QGIS-Enhancement-Proposals/issues/301
113 lines
4.1 KiB
C++
113 lines
4.1 KiB
C++
/***************************************************************************
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qgsvirtualpointcloudentity_p.h
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--------------------------------------
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Date : April 2023
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Copyright : (C) 2023 by Stefanos Natsis
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Email : uclaros at gmail dot com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSVIRTUALPOINTCLOUDENTITY_P_H
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#define QGSVIRTUALPOINTCLOUDENTITY_P_H
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#define SIP_NO_FILE
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///@cond PRIVATE
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the QGIS API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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#include "qgscoordinatetransform.h"
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#include "qgschunkedentity_p.h"
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#include "qgs3dmapsceneentity_p.h"
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#include "qgs3dmapsettingssnapshot.h"
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class QgsAABB;
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class QgsChunkBoundsEntity;
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class QgsPointCloudLayer;
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class QgsPointCloudIndex;
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class QgsVirtualPointCloudProvider;
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class QgsPointCloud3DSymbol;
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class Qgs3DMapSettings;
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/**
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* \ingroup 3d
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* \brief Implementation of entity that handles virtual point cloud sub indexes
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*
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* This entity is parent to a QgsChunkBoundsEntity that renders all sub indexes' bounding boxes, as well as all individual
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* QgsPointCloudLayerChunkedEntities.
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*
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*
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* \since QGIS 3.32
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*/
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class QgsVirtualPointCloudEntity : public Qgs3DMapSceneEntity
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{
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Q_OBJECT
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public:
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//! Constructs
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QgsVirtualPointCloudEntity( QgsPointCloudLayer *layer, const Qgs3DMapSettingsSnapshot &map, const QgsCoordinateTransform &coordinateTransform, QgsPointCloud3DSymbol *symbol, float maxScreenError, bool showBoundingBoxes,
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double zValueScale, double zValueOffset, int pointBudget );
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//! This is called when the camera moves. It's responsible for loading new indexes and decides if subindex will be rendered as bbox or chunked entity.
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void handleSceneUpdate( const SceneContext &sceneContext ) override;
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QgsRange<float> getNearFarPlaneRange( const QMatrix4x4 &viewMatrix ) const override;
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int pendingJobsCount() const override;
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bool needsUpdate() const override;
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public slots:
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//! Creates a child QgsPointCloudLayerChunkedEntity for the \a i th sub index
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void createChunkedEntityForSubIndex( int i );
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//! If \a asBbox is TRUE only the bounding box will be rendered for the sub index \a i. If it is FALSE, the sub index will be rendered as a chunked entity.
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void setRenderSubIndexAsBbox( int i, bool asBbox );
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signals:
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void subIndexNeedsLoading( int i );
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private:
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//! Updates the Bbox child entity to display the sub indexes set with setRenderSubIndexAsBbox()
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void updateBboxEntity();
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//! Returns a list with pointers to all child QgsPointCloudLayerChunkedEntity
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QList<QgsChunkedEntity *> chunkedEntities() const;
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//! Returns a pointer to the associated layer's provider
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QgsVirtualPointCloudProvider *provider() const;
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//! Returns the bounding box for sub index i
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QgsAABB boundingBox( int i ) const;
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QgsPointCloudLayer *mLayer = nullptr;
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QMap<int, QgsChunkedEntity *> mChunkedEntitiesMap;
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QgsChunkBoundsEntity *mBboxesEntity = nullptr;
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QList<QgsAABB> mBboxes;
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Qgs3DMapSettingsSnapshot mMap;
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QgsCoordinateTransform mCoordinateTransform;
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QgsPointCloudIndex *mPointCloudIndex;
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std::unique_ptr< QgsPointCloud3DSymbol > mSymbol;
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double mZValueScale = 1.0;
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double mZValueOffset = 0;
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int mPointBudget = 1000000;
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float mMaximumScreenSpaceError = -1.;
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bool mShowBoundingBoxes = false;
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};
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/// @endcond
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#endif // QGSVIRTUALPOINTCLOUDENTITY_P_H
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