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63 lines
2.5 KiB
Plaintext
63 lines
2.5 KiB
Plaintext
struct QgsRasterCalculatorEntry
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{
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%TypeHeaderCode
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#include <qgsrastercalculator.h>
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%End
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QString ref; //name
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QgsRasterLayer *raster;
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int bandNumber; //raster band number
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};
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/** Raster calculator class*/
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class QgsRasterCalculator
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{
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%TypeHeaderCode
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#include <qgsrastercalculator.h>
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%End
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public:
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//! Result of the calculation
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enum Result
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{
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Success, /*!< Calculation successful */
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CreateOutputError, /*!< Error creating output data file */
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InputLayerError, /*!< Error reading input layer */
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Canceled, /*!< User canceled calculation */
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ParserError, /*!< Error parsing formula */
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MemoryError, /*!< Error allocating memory for result */
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};
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/** QgsRasterCalculator constructor.
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* @param formulaString formula for raster calculation
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* @param outputFile output file path
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* @param outputFormat output file format
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* @param outputExtent output extent. CRS for output is taken from first entry in rasterEntries.
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* @param nOutputColumns number of columns in output raster
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* @param nOutputRows number of rows in output raster
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* @param rasterEntries list of referenced raster layers
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*/
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QgsRasterCalculator( const QString& formulaString, const QString& outputFile, const QString& outputFormat,
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const QgsRectangle &outputExtent, int nOutputColumns, int nOutputRows, const QVector<QgsRasterCalculatorEntry> &rasterEntries );
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/** QgsRasterCalculator constructor.
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* @param formulaString formula for raster calculation
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* @param outputFile output file path
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* @param outputFormat output file format
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* @param outputExtent output extent, CRS is specified by outputCrs parameter
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* @param outputCrs destination CRS for output raster
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* @param nOutputColumns number of columns in output raster
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* @param nOutputRows number of rows in output raster
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* @param rasterEntries list of referenced raster layers
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* @note added in QGIS 2.10
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*/
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QgsRasterCalculator( const QString& formulaString, const QString& outputFile, const QString& outputFormat,
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const QgsRectangle &outputExtent, const QgsCoordinateReferenceSystem &outputCrs, int nOutputColumns, int nOutputRows, const QVector<QgsRasterCalculatorEntry> &rasterEntries );
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/** Starts the calculation and writes new raster
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@param p progress bar (or 0 if called from non-gui code)
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@return 0 in case of success*/
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int processCalculation( QProgressDialog *p = 0 );
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};
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