qgsimagewarper.h

一个非常好的GIS开源新版本

/***************************************************************************
     qgsimagewarper.h
     --------------------------------------
   Date                 : Sun Sep 16 12:03:20 AKDT 2007
    Copyright            : (C) 2007 by Gary E. Sherman
    Email                : sherman at mrcc dot com
 ***************************************************************************
 *                                                                         *
 *   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 QGSIMAGEWARPER_H
#define QGSIMAGEWARPER_H

#include <gdalwarper.h>
#include <QString>


class QgsImageWarper {
public:
  
  enum ResamplingMethod {
    NearestNeighbour = GRA_NearestNeighbour,
    Bilinear = GRA_Bilinear,
    Cubic = GRA_Cubic
  };
  
  
  QgsImageWarper(double angle) : mAngle(angle) { }
  
  void warp(const QString& input, const QString& output, 
	    double& xOffset, double& yOffset, 
	    ResamplingMethod resampling = Bilinear, bool useZeroAsTrans = true, const QString& compression = "NONE");
  
private:
  
  struct TransformParameters {
    double angle;
    double x0;
    double y0;
  };

  
  static int transform(void *pTransformerArg, int bDstToSrc, int nPointCount, 
		       double *x, double *y, double *z, int *panSuccess);
  
  double mAngle;
  
};


#endif