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75 lines
2.7 KiB
Plaintext
75 lines
2.7 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/raster/qgsrasteriterator.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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class QgsRasterIterator
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{
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%Docstring
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Iterator for sequentially processing raster cells.
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%End
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%TypeHeaderCode
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#include "qgsrasteriterator.h"
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%End
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public:
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QgsRasterIterator( QgsRasterInterface *input );
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void startRasterRead( int bandNumber, int nCols, int nRows, const QgsRectangle &extent, QgsRasterBlockFeedback *feedback = 0 );
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%Docstring
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Start reading of raster band. Raster data can then be retrieved by calling readNextRasterPart until it returns false.
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:param bandNumber: number of raster band to read
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:param nCols: number of columns
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:param nRows: number of rows
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:param extent: area to read
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:param feedback: optional raster feedback object for cancelation/preview. Added in QGIS 3.0.
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%End
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bool readNextRasterPart( int bandNumber,
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int &nCols, int &nRows,
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QgsRasterBlock **block,
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int &topLeftCol, int &topLeftRow );
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%Docstring
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Fetches next part of raster data, caller takes ownership of the block and
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caller should delete the block.
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:param bandNumber: band to read
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:param nCols: number of columns on output device
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:param nRows: number of rows on output device
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:param block: address of block pointer
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:param topLeftCol: top left column
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:param topLeftRow: top left row
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:return: false if the last part was already returned*
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%End
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void stopRasterRead( int bandNumber );
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const QgsRasterInterface *input() const;
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void setMaximumTileWidth( int w );
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int maximumTileWidth() const;
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void setMaximumTileHeight( int h );
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int maximumTileHeight() const;
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static const int DEFAULT_MAXIMUM_TILE_WIDTH;
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static const int DEFAULT_MAXIMUM_TILE_HEIGHT;
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};
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/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/raster/qgsrasteriterator.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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