Subgroup: Raster
Class: QgsRasterBlockFeedback¶
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class
qgis.core.
QgsRasterBlockFeedback
(parent: QObject = None)¶ Bases:
qgis._core.QgsFeedback
Construct a new raster block feedback object
Feedback object tailored for raster block reading.
New in version 3.0: Methods
childEvent
connectNotify
customEvent
disconnectNotify
isPreviewOnly
Whether the raster provider should return only data that are already available without waiting for full result. isSignalConnected
onNewData
May be emitted by raster data provider to indicate that some partial data are available and a new preview image may be produced receivers
renderPartialOutput
Whether our painter is drawing to a temporary image used just by this layer sender
senderSignalIndex
setPreviewOnly
set flag whether the block request is for preview purposes only setRenderPartialOutput
Set whether our painter is drawing to a temporary image used just by this layer timerEvent
Signals
Attributes
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childEvent
()¶
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connectNotify
()¶
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customEvent
()¶
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disconnectNotify
()¶
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isPreviewOnly
(self) → bool¶ Whether the raster provider should return only data that are already available without waiting for full result. By default this flag is not enabled.
See also
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isSignalConnected
()¶
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onNewData
(self)¶ May be emitted by raster data provider to indicate that some partial data are available and a new preview image may be produced
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receivers
()¶
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renderPartialOutput
(self) → bool¶ Whether our painter is drawing to a temporary image used just by this layer
See also
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sender
()¶
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senderSignalIndex
()¶
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setPreviewOnly
(self, preview: bool)¶ set flag whether the block request is for preview purposes only
See also
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setRenderPartialOutput
(self, enable: bool)¶ Set whether our painter is drawing to a temporary image used just by this layer
See also
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timerEvent
()¶
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