qgspseudocolorshader.h

一个非常好的GIS开源新版本

/* **************************************************************************
                qgspseudocolorshader.h -  description
                       -------------------
begin                : Fri Dec 28 2007
copyright            : (C) 2007 by Peter J. Ersts
email                : [e-mail]

This class contains code that was originally part of the larger QgsRasterLayer 
class originally created circa 2004 by T.Sutton, Gary E.Sherman, Steve Halasz
****************************************************************************/

/* **************************************************************************
 *                                                                         *
 *   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 QGSPSEUDOCOLORSHADER_H
#define QGSPSEUDOCOLORSHADER_H

#include "qgsrastershaderfunction.h"

class CORE_EXPORT QgsPseudoColorShader : public QgsRasterShaderFunction {
 
public:
  QgsPseudoColorShader(double theMinimumValue=0.0, double theMaximumValue=255.0);
  
  bool generateShadedValue(double, int*, int*, int*);
  bool generateShadedValue(double, double, double, int*, int*, int*);
  /** \brief Set the maximum value */
  void setMaximumValue(double);
  /** \brief Return the minimum value */
  void setMinimumValue(double);
  
private:
  void setClassBreaks();
  
  double mBreakSize;
  double mClassBreakMin1;
  double mClassBreakMax1;
  double mClassBreakMin2;
  double mClassBreakMax2;
  double mClassBreakMin3;
};
#endif