SegmentIntersectionTester.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2011 Sandro Santilli <strk@keybit.net>
 * Copyright (C) 2006 Refractions Research 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: operation/predicate/SegmentIntersectionTester.java r378 (JTS-1.12)
 *
 **********************************************************************/
 
#ifndef GEOS_OP_PREDICATE_SEGMENTINTERSECTIONTESTER_H
#define GEOS_OP_PREDICATE_SEGMENTINTERSECTIONTESTER_H
 
#include <geos/export.h>
 
#include <geos/algorithm/LineIntersector.h> // for composition
#include <geos/geom/Coordinate.h> // for composition
 
// Forward declarations
namespace geos {
        namespace geom {
                class LineString;
                class CoordinateSequence;
        }
}
 
namespace geos {
namespace operation { // geos::operation
namespace predicate { // geos::operation::predicate

class GEOS_DLL SegmentIntersectionTester {
 
private:

        algorithm::LineIntersector li; // Robust
 
        bool hasIntersectionVar;
 
  geom::Coordinate pt10;
  geom::Coordinate pt11;
  geom::Coordinate pt00;
  geom::Coordinate pt01;
 
 
public:
 
        SegmentIntersectionTester(): hasIntersectionVar(false) {}
 
        bool hasIntersectionWithLineStrings(const geom::LineString &line,
                const std::vector<const geom::LineString *>& lines);
 
        bool hasIntersection(const geom::LineString &line,
                const geom::LineString &testLine);

        bool hasIntersectionWithEnvelopeFilter(const geom::LineString &line,
                const geom::LineString &testLine);
 
 
};
 
} // namespace geos::operation::predicate
} // namespace geos::operation
} // namespace geos
 
#endif // ifndef GEOS_OP_PREDICATE_SEGMENTINTERSECTIONTESTER_H