QgsRasterProjector class

Base classes

class QgsRasterInterface

Base class for processing filters like renderers, reprojector, resampler etc.

Public types

enum Precision { Approximate = 0, Exact = 1 }

Precision defines if each pixel is reprojected or approximate reprojection based on an approximation matrix of reprojected points is used.

Public static functions

static auto extentSize(const QgsCoordinateTransform& ct, const QgsRectangle& srcExtent, int srcXSize, int srcYSize, QgsRectangle& destExtent, int& destXSize, int& destYSize) -> bool

Calculate destination extent and size from source extent and size.

Public functions

auto bandCount() const -> int override

Gets number of bands.

auto block(int bandNo, const QgsRectangle& extent, int width, int height, QgsRasterBlockFeedback* feedback = nullptr) -> QgsRasterBlock* override

Read block of data using given extent and size.

auto clone() const -> QgsRasterProjector* override

Clone itself, create deep copy.

auto dataType(int bandNo) const -> Qgis::DataType override

Returns data type for the band specified by number.

auto destExtentSize(const QgsRectangle& srcExtent, int srcXSize, int srcYSize, QgsRectangle& destExtent, int& destXSize, int& destYSize) -> bool

Calculate destination extent and size from source extent and size.

auto destinationCrs() const -> QgsCoordinateReferenceSystem

Returns the destination CRS.

void setCrs(const QgsCoordinateReferenceSystem& srcCRS, const QgsCoordinateReferenceSystem& destCRS, int srcDatumTransform = -1, int destDatumTransform = -1)

Sets the source and destination CRS.

auto sourceCrs() const -> QgsCoordinateReferenceSystem

Returns the source CRS.

Enum documentation

Function documentation