/usr/include/qgis/qgscontrastenhancementfunction.h is in libqgis-dev 1.7.4+1.7.5~20120320-1.1+b1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | /* **************************************************************************
qgscontrastenhancementfunction.h - description
-------------------
begin : Fri Nov 16 2007
copyright : (C) 2007 by Peter J. Ersts
email : ersts@amnh.org
****************************************************************************/
/* **************************************************************************
* *
* 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 QGSCONTRASTENHANCEMENTFUNCTION_H
#define QGSCONTRASTENHANCEMENTFUNCTION_H
#include "qgscontrastenhancement.h"
/** \ingroup core
* A contrast enhancement funcion is the base class for all raster contrast enhancements.
*
* The purpose of a contrast enhancement is to enhanceContrast or clip a pixel value into
* a specified bounding range.
*/
class CORE_EXPORT QgsContrastEnhancementFunction
{
public:
QgsContrastEnhancementFunction( QgsContrastEnhancement::QgsRasterDataType, double, double );
virtual ~QgsContrastEnhancementFunction() {}
/** \brief A customizable method that takes in a double and returns a int between 0 and 255 */
virtual int enhance( double );
/** \brief A customicable method to indicate if the pixels is displayable */
virtual bool isValueInDisplayableRange( double );
/** \brief Mustator for the maximum value */
void setMaximumValue( double );
/** \brief Mutator for the minimum value */
void setMinimumValue( double );
protected:
/** \brief User defineable maximum value for the band, used for enhanceContrasting */
double mMaximumValue;
/** \brief User defineable minimum value for the band, used for enhanceContrasting */
double mMinimumValue;
/** \brief Minimum maximum range for the band, used for enhanceContrasting */
double mMinimumMaximumRange;
/** \brief Data type of the band */
QgsContrastEnhancement::QgsRasterDataType mQgsRasterDataType;
};
#endif
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