18#ifndef QGSPOINTCLOUDEXTENTRENDERER_H
19#define QGSPOINTCLOUDEXTENTRENDERER_H
46 QString
type()
const override;
A fill symbol type, for rendering Polygon and MultiPolygon geometries.
A geometry is the spatial representation of a feature.
Layer tree node points to a map layer.
Base class for storing raw data from point cloud nodes.
A renderer for 2d visualisation of point clouds which shows the dataset's extents using a fill symbol...
~QgsPointCloudExtentRenderer() override
Encapsulates the render context for a 2D point cloud rendering operation.
Abstract base class for 2d point cloud renderers.
virtual QDomElement save(QDomDocument &doc, const QgsReadWriteContext &context) const =0
Saves the renderer configuration to an XML element.
virtual void renderBlock(const QgsPointCloudBlock *block, QgsPointCloudRenderContext &context)=0
Renders a block of point cloud data using the specified render context.
virtual QString type() const =0
Returns the identifier of the renderer type.
virtual QgsPointCloudRenderer * clone() const =0
Create a deep copy of this renderer.
virtual void startRender(QgsPointCloudRenderContext &context)
Must be called when a new render cycle is started.
virtual void stopRender(QgsPointCloudRenderContext &context)
Must be called when a render cycle has finished, to allow the renderer to clean up.
virtual QList< QgsLayerTreeModelLegendNode * > createLegendNodes(QgsLayerTreeLayer *nodeLayer)
Creates a set of legend nodes representing the renderer.
The class is used as a container of context for various read/write operations on other objects.
std::unique_ptr< GEOSGeometry, GeosDeleter > unique_ptr
Scoped GEOS pointer.