ExtractLineByLocation.h

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/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2005-2006 Refractions Research Inc.
 * Copyright (C) 2001-2002 Vivid Solutions Inc.
 *
 * 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: linearref/ExtractLineByLocation.java rev. 1.10
 *
 **********************************************************************/

#ifndef GEOS_LINEARREF_EXTRACTLINEBYLOCATION_H
#define GEOS_LINEARREF_EXTRACTLINEBYLOCATION_H

#include <geos/geom/Coordinate.h>
#include <geos/geom/Geometry.h>
#include <geos/linearref/LinearLocation.h>

namespace geos {
namespace linearref { // geos::linearref

class ExtractLineByLocation {

private:
    const geom::Geometry* line;
    std::unique_ptr<geom::Geometry> reverse(const geom::Geometry* linear);

    std::unique_ptr<geom::LineString> computeLine(const LinearLocation& start, const LinearLocation& end);

    std::unique_ptr<geom::Geometry> computeLinear(const LinearLocation& start, const LinearLocation& end);

public:
    static std::unique_ptr<geom::Geometry> extract(const geom::Geometry* line, const LinearLocation& start, const LinearLocation& end);

    ExtractLineByLocation(const geom::Geometry* line);

    std::unique_ptr<geom::Geometry> extract(const LinearLocation& start, const LinearLocation& end);

};
}
}
#endif