Class: QgsMapRendererQImageJob

Intermediate base class adding functionality that allows a client to query the rendered image.

The image can be queried even while the rendering is still in progress to get intermediate result

Note

This is an abstract class, with methods which must be implemented by a subclass.

The following methods must be implemented: QgsMapRendererJob.cancel(), QgsMapRendererJob.cancelWithoutBlocking(), QgsMapRendererJob.isActive(), renderedImage(), QgsMapRendererJob.takeLabelingResults(), QgsMapRendererJob.usedCachedLabels(), QgsMapRendererJob.waitForFinished()

Class Hierarchy

Inheritance diagram of qgis.core.QgsMapRendererQImageJob

Base classes

QgsMapRendererJob

Abstract base class for map rendering implementations.

QObject

Subclasses

QgsMapRendererParallelJob

Job implementation that renders all layers in parallel.

QgsMapRendererSequentialJob

Job implementation that renders everything sequentially in one thread.

Abstract Methods

renderedImage

Gets a preview/resulting image
class qgis.core.QgsMapRendererQImageJob[source]

Bases: QgsMapRendererJob

abstract renderedImage(self) → QImage[source]

Gets a preview/resulting image

Return type:

QImage