IsSimpleOp.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2009      Sandro Santilli <strk@keybit.net>
 * 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: operation/IsSimpleOp.java rev. 1.22 (JTS-1.10)
 *
 **********************************************************************/
 
#ifndef GEOS_OPERATION_ISSIMPLEOP_H
#define GEOS_OPERATION_ISSIMPLEOP_H
 
#include <geos/export.h>
#include <geos/geom/Coordinate.h> // for dtor visibility by auto_ptr (compos)
 
#include <map>
#include <memory> // for auto_ptr
 
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
#endif
 
// Forward declarations
namespace geos {
        namespace algorithm {
                class BoundaryNodeRule;
        }
        namespace geom {
                class LineString;
                class MultiLineString;
                class MultiPoint;
                class Geometry;
                struct CoordinateLessThen;
        }
        namespace geomgraph {
                class GeometryGraph;
        }
        namespace operation {
                class EndpointInfo;
        }
}
 
 
namespace geos {
namespace operation { // geos.operation

class GEOS_DLL IsSimpleOp
{
 
public:

        IsSimpleOp();

        IsSimpleOp(const geom::Geometry& geom);

        IsSimpleOp(const geom::Geometry& geom,
                   const algorithm::BoundaryNodeRule& boundaryNodeRule);

        bool isSimple();

        const geom::Coordinate* getNonSimpleLocation() const
        {
                return nonSimpleLocation.get();
        }

        bool isSimple(const geom::LineString *geom);

        bool isSimple(const geom::MultiLineString *geom);

        bool isSimple(const geom::MultiPoint *mp);
 
        bool isSimpleLinearGeometry(const geom::Geometry *geom);
 
private:

        bool hasNonEndpointIntersection(geomgraph::GeometryGraph &graph);

        bool hasClosedEndpointIntersection(geomgraph::GeometryGraph &graph);

        void addEndpoint(std::map<const geom::Coordinate*, EndpointInfo*,
                        geom::CoordinateLessThen>&endPoints,
                        const geom::Coordinate *p, bool isClosed);
 
        bool isClosedEndpointsInInterior; 
 
        bool isSimpleMultiPoint(const geom::MultiPoint& mp);
 
        const geom::Geometry* geom;
 
        std::auto_ptr<geom::Coordinate> nonSimpleLocation;
};
 
} // namespace geos.operation
} // namespace geos
 
#ifdef _MSC_VER
#pragma warning(pop)
#endif
 
#endif