SweepLineSegment.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.
 *
 **********************************************************************/
 
#ifndef GEOS_GEOMGRAPH_INDEX_SWEEPLINESEGMENT_H
#define GEOS_GEOMGRAPH_INDEX_SWEEPLINESEGMENT_H
 
 
#include <geos/export.h>
#include <geos/geomgraph/index/SweepLineEventObj.h> // for inheritance
 
// Forward declarations
namespace geos {
        namespace geom {
                class CoordinateSequence;
        }
        namespace geomgraph {
                class Edge;
                namespace index {
                        class SegmentIntersector;
                }
        }
}
 
namespace geos {
namespace geomgraph { // geos::geomgraph
namespace index { // geos::geomgraph::index
 
class GEOS_DLL SweepLineSegment: public SweepLineEventOBJ {
public:
        SweepLineSegment(Edge *newEdge, int newPtIndex);
        ~SweepLineSegment();
        double getMinX();
        double getMaxX();
        void computeIntersections(SweepLineSegment *ss, SegmentIntersector *si);
protected:
        Edge *edge;
        const geom::CoordinateSequence* pts;
        int ptIndex;
};
 
 
 
} // namespace geos.geomgraph.index
} // namespace geos.geomgraph
} // namespace geos
 
#endif