Subgroup: Raster

Class: QgsRasterProjector

class qgis.core.QgsRasterProjector

Bases: qgis._core.QgsRasterInterface

QgsRasterProjector implements approximate projection support for it calculates grid of points in source CRS for target CRS + extent which are used to calculate affine transformation matrices.

Methods

bandCount
bandStatistics	Get band statistics.
block
capabilities	Returns a bitmask containing the supported capabilities
capabilitiesString	Returns the above in friendly format.
clone
cumulativeCut	Find values for cumulative pixel count cut.
dataType
dataTypeSize
destExtentSize	Calculate destination extent and size from source extent and size
destinationCrs	Get destination CRS
extent	Get the extent of the interface.
extentSize	Calculate destination extent and size from source extent and size
generateBandName	helper function to create zero padded band names
hasHistogram	Returns true if histogram is available (cached, already calculated)
hasStatistics	Returns true if histogram is available (cached, already calculated).
histogram	Get histogram.
initHistogram
initStatistics
input	Current input
on	Is on/off
precision
precisionLabel
readXml	Sets base class members from xml.
setCrs	set source and destination CRS
setInput	Set input.
setOn	Set on/off
setPrecision
sourceCrs	Get source CRS
sourceDataType	Returns source data type for the band specified by number,
sourceInput	Get source / raw input, the first in pipe, usually provider.
writeXml	Write base class members to xml.
xBlockSize	Get block size
xSize	Get raster size
yBlockSize
ySize

Attributes

Approximate
BuildPyramids
Create
Exact
Identify
IdentifyFeature
IdentifyHtml
IdentifyText
IdentifyValue
NoCapabilities
Remove
Size

Approximate = 0

Exact = 1

class Precision

Bases: int

bandCount(self) → int

block(self, bandNo: int, extent: QgsRectangle, width: int, height: int, feedback: QgsRasterBlockFeedback = None) → QgsRasterBlock

clone(self) → QgsRasterProjector

dataType(self, bandNo: int) → Qgis.DataType

destExtentSize(self, srcExtent: QgsRectangle, srcXSize: int, srcYSize: int) → Tuple[bool, QgsRectangle, int, int]

Calculate destination extent and size from source extent and size

destinationCrs(self) → QgsCoordinateReferenceSystem

Get destination CRS

extentSize(ct: QgsCoordinateTransform, srcExtent: QgsRectangle, srcXSize: int, srcYSize: int) → Tuple[bool, QgsRectangle, int, int]

Calculate destination extent and size from source extent and size

initHistogram()

initStatistics()

precision(self) → QgsRasterProjector.Precision

precisionLabel(precision: QgsRasterProjector.Precision) → str

setCrs(self, srcCRS: QgsCoordinateReferenceSystem, destCRS: QgsCoordinateReferenceSystem, srcDatumTransform: int = -1, destDatumTransform: int = -1)

set source and destination CRS

setPrecision(self, precision: QgsRasterProjector.Precision)

sourceCrs(self) → QgsCoordinateReferenceSystem

Get source CRS