Class: QgsRasterFileWriterTask

QgsTask task which performs a QgsRasterFileWriter layer saving operation as a background task.

This can be used to save a raster layer out to a file without blocking the QGIS interface.

See also

QgsVectorFileWriterTask

See also

QgsVectorFileExporterTask

Class Hierarchy

Inheritance diagram of qgis.core.QgsRasterFileWriterTask

Base classes

QgsTask

Abstract base class for long running background tasks.

QObject
class qgis.core.QgsRasterFileWriterTask[source]

Bases: QgsTask

__init__(writer: QgsRasterFileWriter, pipe: QgsRasterPipe | None, columns: int, rows: int, outputExtent: QgsRectangle, crs: QgsCoordinateReferenceSystem)

Constructor for QgsRasterFileWriterTask. Takes a source writer, columns, rows, outputExtent and destination crs. Ownership of the pipe is transferred to the writer task, and will be deleted when the task completes.

Deprecated since version 3.8: Use version with transformContext instead.

Parameters:
__init__(writer: QgsRasterFileWriter, pipe: QgsRasterPipe | None, columns: int, rows: int, outputExtent: QgsRectangle, crs: QgsCoordinateReferenceSystem, transformContext: QgsCoordinateTransformContext)

Constructor for QgsRasterFileWriterTask. Takes a source writer, columns, rows, outputExtent, destination crs and coordinate transformContext . Ownership of the pipe is transferred to the writer task, and will be deleted when the task completes.

Parameters:
signal errorOccurred[source]

pyqtSignal(*types, name: str = …, revision: int = …, arguments: Sequence = …) -> PYQT_SIGNAL

types is normally a sequence of individual types. Each type is either a type object or a string that is the name of a C++ type. Alternatively each type could itself be a sequence of types each describing a different overloaded signal. name is the optional C++ name of the signal. If it is not specified then the name of the class attribute that is bound to the signal is used. revision is the optional revision of the signal that is exported to QML. If it is not specified then 0 is used. arguments is the optional sequence of the names of the signal’s arguments.

signal writeComplete[source]

pyqtSignal(*types, name: str = …, revision: int = …, arguments: Sequence = …) -> PYQT_SIGNAL

types is normally a sequence of individual types. Each type is either a type object or a string that is the name of a C++ type. Alternatively each type could itself be a sequence of types each describing a different overloaded signal. name is the optional C++ name of the signal. If it is not specified then the name of the class attribute that is bound to the signal is used. revision is the optional revision of the signal that is exported to QML. If it is not specified then 0 is used. arguments is the optional sequence of the names of the signal’s arguments.