/usr/include/qgis/qgsrastercalculator.h is in libqgis-dev 2.4.0-1+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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qgsrastercalculator.h - description
---------------------
begin : September 28th, 2010
copyright : (C) 2010 by Marco Hugentobler
email : marco dot hugentobler at sourcepole dot ch
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef QGSRASTERCALCULATOR_H
#define QGSRASTERCALCULATOR_H
#include "qgsfield.h"
#include "qgsrectangle.h"
#include <QString>
#include <QVector>
#include "gdal.h"
class QgsRasterLayer;
class QProgressDialog;
struct ANALYSIS_EXPORT QgsRasterCalculatorEntry
{
QString ref; //name
QgsRasterLayer* raster; //pointer to rasterlayer
int bandNumber; //raster band number
};
/**Raster calculator class*/
class ANALYSIS_EXPORT QgsRasterCalculator
{
public:
QgsRasterCalculator( const QString& formulaString, const QString& outputFile, const QString& outputFormat,
const QgsRectangle& outputExtent, int nOutputColumns, int nOutputRows, const QVector<QgsRasterCalculatorEntry>& rasterEntries );
~QgsRasterCalculator();
/**Starts the calculation and writes new raster
@param p progress bar (or 0 if called from non-gui code)
@return 0 in case of success*/
int processCalculation( QProgressDialog* p = 0 );
private:
//default constructor forbidden. We need formula, output file, output format and output raster resolution obligatory
QgsRasterCalculator();
/**Opens the output driver and tests if it supports the creation of a new dataset
@return NULL on error and the driver handle on success*/
GDALDriverH openOutputDriver();
/**Opens the output file and sets the same geotransform and CRS as the input data
@return the output dataset or NULL in case of error*/
GDALDatasetH openOutputFile( GDALDriverH outputDriver );
/**Reads raster pixels from a dataset/band
@param targetGeotransform transformation parameters of the requested raster array
(not necessarily the same as the transform of the source dataset)
@param xOffset x offset
@param yOffset y offset
@param nCols number of columns
@param nRows number of rows
@param sourceTransform source transformation
@param sourceBand source band
@param rasterBuffer raster buffer
*/
void readRasterPart( double* targetGeotransform,
int xOffset, int yOffset,
int nCols, int nRows,
double* sourceTransform,
GDALRasterBandH sourceBand,
float* rasterBuffer );
/**Compares two geotransformations (six parameter double arrays*/
bool transformationsEqual( double* t1, double* t2 ) const;
/**Sets gdal 6 parameters array from mOutputRectangle, mNumOutputColumns, mNumOutputRows
@param transform double[6] array that receives the GDAL parameters*/
void outputGeoTransform( double* transform ) const;
QString mFormulaString;
QString mOutputFile;
QString mOutputFormat;
/**Output raster extent*/
QgsRectangle mOutputRectangle;
/**Number of output columns*/
int mNumOutputColumns;
/**Number of output rows*/
int mNumOutputRows;
/***/
QVector<QgsRasterCalculatorEntry> mRasterEntries;
};
#endif // QGSRASTERCALCULATOR_H
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