SineStarFactory.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2011 Sandro Santilli <strk@keybit.net
 *
 * This is free software; you can redistribute and/or modify it under
 * the terms of the GNU Lesser General Public Licence as published
 * by the Free Software Foundation. 
 * See the COPYING file for more information.
 *
 **********************************************************************
 *
 * Last port: geom/util/SineStarFactory.java r378 (JTS-1.12)
 *
 **********************************************************************/
 
#ifndef GEOS_UTIL_SINESTARFACTORY_H
#define GEOS_UTIL_SINESTARFACTORY_H
 
#include <geos/export.h>
 
#include <geos/util/GeometricShapeFactory.h> // for inheritance
 
#include <memory>
 
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
#endif
 
// Forward declarations
namespace geos {
        namespace geom { 
                class Coordinate;
                class Envelope;
                class Polygon;
                class GeometryFactory;
                class PrecisionModel;
                class LineString;
        }
}
 
namespace geos {
namespace geom { // geos::geom
namespace util { // geos::geom::util

class GEOS_DLL SineStarFactory : public geos::util::GeometricShapeFactory  {
 
protected:
 
  int numArms;
  double armLengthRatio;
 
public:

        SineStarFactory(const geom::GeometryFactory* fact)
    :
    geos::util::GeometricShapeFactory(fact),
    numArms(8),
    armLengthRatio(0.5)
  {}

  void setNumArms(int nArms)
  {
    numArms = nArms;
  }

  void setArmLengthRatio(double armLenRatio)
  {
        armLengthRatio = armLenRatio;
  }

  std::auto_ptr<Polygon> createSineStar() const;
 
 
};
 
} // namespace geos::geom::util
} // namespace geos::geom
} // namespace geos
 
#ifdef _MSC_VER
#pragma warning(pop)
#endif
 
#endif // GEOS_UTIL_SINESTARFACTORY_H