RightmostEdgeFinder.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * 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/buffer/RightmostEdgeFinder.java r320 (JTS-1.12)
 *
 **********************************************************************/
 
#pragma once
 
#include <geos/export.h>
 
#include <geos/geom/Coordinate.h> // for composition
 
#include <vector>
 
// Forward declarations
namespace geos {
namespace geom {
}
namespace geomgraph {
class DirectedEdge;
}
}
 
namespace geos {
namespace operation { // geos.operation
namespace buffer { // geos.operation.buffer
 
class GEOS_DLL RightmostEdgeFinder {
 
private:
 
    int minIndex;
 
    geom::Coordinate minCoord;
 
    geomgraph::DirectedEdge* minDe;
 
    geomgraph::DirectedEdge* orientedDe;
 
    void findRightmostEdgeAtNode();
 
    void findRightmostEdgeAtVertex();
 
    void checkForRightmostCoordinate(geomgraph::DirectedEdge* de);
 
    int getRightmostSide(geomgraph::DirectedEdge* de, int index);
 
    static int getRightmostSideOfSegment(geomgraph::DirectedEdge* de, int i);
 
public:
 
    RightmostEdgeFinder();
 
    geomgraph::DirectedEdge* getEdge();
 
    geom::Coordinate& getCoordinate();
 
    void findEdge(std::vector<geomgraph::DirectedEdge*>* dirEdgeList);
};
 
/*public*/
inline geomgraph::DirectedEdge*
RightmostEdgeFinder::getEdge()
{
    return orientedDe;
}
 
/*public*/
inline geom::Coordinate&
RightmostEdgeFinder::getCoordinate()
{
    return minCoord;
}
 
 
} // namespace geos::operation::buffer
} // namespace geos::operation
} // namespace geos