ExtractLineByLocation.h

/**********************************************************************
 *
 * 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;
        geom::Geometry *reverse(const geom::Geometry *linear);

        geom::LineString* computeLine(const LinearLocation& start, const LinearLocation& end);

        geom::Geometry *computeLinear(const LinearLocation& start, const LinearLocation& end);
 
public:
        static geom::Geometry *extract(const geom::Geometry *line, const LinearLocation& start, const LinearLocation& end);
 
        ExtractLineByLocation(const geom::Geometry *line);

        geom::Geometry *extract(const LinearLocation& start, const LinearLocation& end);
 
};
}
}
#endif