/usr/include/qgis/qgsrastershaderfunction.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 | /* **************************************************************************
qgsrastershaderfunction.h - description
-------------------
begin : Fri Dec 28 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 QGSRASTERSHADERFUNCTION_H
#define QGSRASTERSHADERFUNCTION_H
/** \ingroup core
* The raster shade function applies a shader to a pixel at render time -
* typically used to render grayscale images as false color.
*/
class CORE_EXPORT QgsRasterShaderFunction
{
public:
QgsRasterShaderFunction( double theMinimumValue = 0.0, double theMaximumValue = 255.0 );
virtual ~QgsRasterShaderFunction() {}
/** \brief Set the maximum value */
virtual void setMaximumValue( double );
/** \brief Return the minimum value */
virtual void setMinimumValue( double );
/** \brief generates and new RGB value based on one input value */
virtual bool shade( double, int*, int*, int* );
/** \brief generates and new RGB value based on original RGB value */
virtual bool shade( double, double, double, int*, int*, int* );
protected:
/** \brief User defineable maximum value for the shading function */
double mMaximumValue;
/** \brief User defineable minimum value for the shading function */
double mMinimumValue;
/** \brief Minimum maximum range for the shading function */
double mMinimumMaximumRange;
};
#endif
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