BoundaryOp.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2022 ISciences LLC
 *
 * 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: operation/BoundaryOp.java fd5aebb
 *
 **********************************************************************/
 
#pragma once
 
#include <geos/algorithm/BoundaryNodeRule.h>
#include <geos/geom/Geometry.h>
#include <map>
 
namespace geos {
namespace geom {
class Curve;
class LineString;
class MultiCurve;
class MultiLineString;
class GeometryCollection;
}
}
 
namespace geos {
namespace operation {

class GEOS_DLL BoundaryOp {
 
public:
  BoundaryOp(const geom::Geometry& geom);

  BoundaryOp(const geom::Geometry& geom, const algorithm::BoundaryNodeRule& bnRule);

  static std::unique_ptr<geom::Geometry> getBoundary(const geom::Geometry& g);

  static std::unique_ptr<geom::Geometry> getBoundary(const geom::Geometry& g, const algorithm::BoundaryNodeRule& bnRule);

  static bool hasBoundary(const geom::Geometry& geom, const algorithm::BoundaryNodeRule& boundaryNodeRule);

  std::unique_ptr<geom::Geometry> getBoundary();
 
private:
  const geom::Geometry& m_geom;
  const geom::GeometryFactory& m_geomFact;
  const algorithm::BoundaryNodeRule& m_bnRule;
 
  std::unique_ptr<geom::Geometry> boundaryMultiCurve(const geom::GeometryCollection& mLine);
 
  std::unique_ptr<geom::CoordinateSequence> computeBoundaryCoordinates(const geom::GeometryCollection& mLine) const;
 
  std::unique_ptr<geom::Geometry> boundaryCurve(const geom::Curve& line) const;
};
 
}
}