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/************************************************************************
* This file has been generated automatically from *
* *
* src/analysis/raster/qgsalignraster.h *
* *
* Do not edit manually ! Edit header and run scripts/sipify.py again *
************************************************************************/
class QgsAlignRaster
{
%Docstring(signature="appended")
:py:class:`QgsAlignRaster` takes one or more raster layers and warps
(resamples) them so they have the same:
- coordinate reference system
- cell size and raster size
- offset of the raster grid
%End
%TypeHeaderCode
#include "qgsalignraster.h"
#include "gdal_version.h"
%End
public:
QgsAlignRaster();
struct RasterInfo
{
public:
RasterInfo( const QString &layerpath );
%Docstring
Construct raster info with a path to a raster file
%End
bool isValid() const;
%Docstring
Check whether the given path is a valid raster
%End
QString crs() const;
%Docstring
Returns the CRS in WKT format
%End
QSize rasterSize() const;
%Docstring
Returns the size of the raster grid in pixels
%End
int bandCount() const;
%Docstring
Returns the number of raster bands in the file
%End
QSizeF cellSize() const;
%Docstring
Returns the cell size in map units
%End
QPointF gridOffset() const;
%Docstring
Returns the grid offset
%End
QgsRectangle extent() const;
%Docstring
Returns the extent of the raster
%End
QPointF origin() const;
%Docstring
Returns the origin of the raster
%End
void dump() const;
%Docstring
Write contents of the object to standard error stream - for debugging
%End
double identify( double mx, double my );
%Docstring
Gets raster value at the given coordinates (from the first band)
%End
protected:
private:
RasterInfo( const QgsAlignRaster::RasterInfo &rh );
};
typedef Qgis::GdalResampleAlgorithm ResampleAlg;
typedef QgsAlignRasterData::RasterItem Item;
typedef QList<QgsAlignRasterData::RasterItem> List;
struct ProgressHandler
{
virtual bool progress( double complete ) = 0;
%Docstring
Method to be overridden for progress reporting.
:param complete: Overall progress of the alignment operation
:return: ``False`` if the execution should be canceled, ``True``
otherwise
%End
virtual ~ProgressHandler();
};
void setProgressHandler( ProgressHandler *progressHandler );
%Docstring
Assign a progress handler instance. Does not take ownership. ``None``
can be passed.
%End
ProgressHandler *progressHandler() const;
%Docstring
Gets associated progress handler. May be ``None`` (default)
%End
void setRasters( const List &list );
%Docstring
Sets list of rasters that will be aligned
%End
List rasters() const;
%Docstring
Gets list of rasters that will be aligned
%End
void setGridOffset( QPointF offset );
QPointF gridOffset() const;
void setCellSize( double x, double y );
%Docstring
Sets output cell size
%End
void setCellSize( QSizeF size );
%Docstring
Sets output cell size
%End
QSizeF cellSize() const;
%Docstring
Gets output cell size
%End
void setDestinationCrs( const QString &crsWkt );
%Docstring
Sets the output CRS in WKT format
%End
QString destinationCrs() const;
%Docstring
Gets the output CRS in WKT format
%End
void setClipExtent( double xmin, double ymin, double xmax, double ymax );
%Docstring
Configure clipping extent (region of interest). No extra clipping is
done if the rectangle is null
%End
void setClipExtent( const QgsRectangle &extent );
%Docstring
Configure clipping extent (region of interest). No extra clipping is
done if the rectangle is null
%End
QgsRectangle clipExtent() const;
%Docstring
Gets clipping extent (region of interest). No extra clipping is done if
the rectangle is null
%End
bool setParametersFromRaster( const RasterInfo &rasterInfo, const QString &customCRSWkt = QString(), QSizeF customCellSize = QSizeF(), QPointF customGridOffset = QPointF( -1, -1 ) );
%Docstring
Set destination CRS, cell size and grid offset from a raster file. The
user may provide custom values for some of the parameters - in such case
only the remaining parameters are calculated.
If default CRS is used, the parameters are set according to the raster
file's geo-transform. If a custom CRS is provided, suggested
reprojection is calculated first (using GDAL) in order to determine
suitable defaults for cell size and grid offset.
:return: ``True`` on success (may fail if it is not possible to
reproject raster to given CRS)
%End
bool setParametersFromRaster( const QString &filename, const QString &customCRSWkt = QString(), QSizeF customCellSize = QSizeF(), QPointF customGridOffset = QPointF( -1, -1 ) );
%Docstring
Overridden variant for convenience, taking filename instead RasterInfo
object. See the other variant for details.
%End
bool checkInputParameters();
%Docstring
Determine destination extent from the input rasters and calculate
derived values
:return: ``True`` on success, sets error on error (see
:py:func:`~QgsAlignRaster.errorMessage`)
%End
QSize alignedRasterSize() const;
%Docstring
Returns the expected size of the resulting aligned raster
.. note::
first need to run :py:func:`~QgsAlignRaster.checkInputParameters` which returns with success
%End
QgsRectangle alignedRasterExtent() const;
%Docstring
Returns the expected extent of the resulting aligned raster
.. note::
first need to run :py:func:`~QgsAlignRaster.checkInputParameters` which returns with success
%End
bool run();
%Docstring
Run the alignment process
:return: ``True`` on success, sets error on error (see
:py:func:`~QgsAlignRaster.errorMessage`)
%End
QString errorMessage() const;
%Docstring
Returns the error from a previous :py:func:`~QgsAlignRaster.run` call.
Error message is empty if :py:func:`~QgsAlignRaster.run` succeeded
(returned ``True``)
%End
void dump() const;
%Docstring
write contents of the object to standard error stream - for debugging
%End
int suggestedReferenceLayer() const;
%Docstring
Returns the index of the layer which has smallest cell size (returns -1
on error)
%End
protected:
bool createAndWarp( const Item &raster );
%Docstring
Internal function for processing of one raster (1. create output, 2. do
the alignment)
%End
static bool suggestedWarpOutput( const RasterInfo &info, const QString &destWkt, QSizeF *cellSize = 0, QPointF *gridOffset = 0, QgsRectangle *rect = 0 );
%Docstring
Determine suggested output of raster warp to a different CRS. Returns
``True`` on success
%End
protected:
};
/************************************************************************
* This file has been generated automatically from *
* *
* src/analysis/raster/qgsalignraster.h *
* *
* Do not edit manually ! Edit header and run scripts/sipify.py again *
************************************************************************/
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