qgssimplifymethod.h

Go to the documentation of this file.

/***************************************************************************
    qgssimplifymethod.h
    ---------------------
    begin                : December 2013
    copyright            : (C) 2013 by Matthias Kuhn / Alvaro Huarte
    email                :
 ***************************************************************************
 *                                                                         *
 *   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 QGSSIMPLIFYMETHOD_H
#define QGSSIMPLIFYMETHOD_H
 
#include "qgis_core.h"
 
class QgsAbstractGeometrySimplifier;
 
class CORE_EXPORT QgsSimplifyMethod
{
  public:
    enum MethodType
    {
      NoSimplification,     
      OptimizeForRendering, 
      PreserveTopology      
    };
 
    QgsSimplifyMethod() = default;
 
    void setMethodType( MethodType methodType );
    inline MethodType methodType() const { return mMethodType; }
 
    void setTolerance( double tolerance );
    inline double tolerance() const { return mTolerance; }
 
    void setThreshold( float threshold ) { mThreshold = threshold; }
    inline float threshold() const { return mThreshold; }
 
    void setForceLocalOptimization( bool localOptimization );
    inline bool forceLocalOptimization() const { return mForceLocalOptimization; }
 
    static QgsAbstractGeometrySimplifier *createGeometrySimplifier( const QgsSimplifyMethod &simplifyMethod );
 
  protected:
    MethodType mMethodType = QgsSimplifyMethod::NoSimplification;
    double mTolerance = 1;
    float mThreshold = 1;
    bool mForceLocalOptimization = true;
};
 
#endif // QGSSIMPLIFYMETHOD_H