BufferParameters.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2009  Sandro Santilli <strk@kbt.io>
 *
 * 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/BufferParameters.java r378 (JTS-1.12)
 *
 **********************************************************************/
 
#ifndef GEOS_OP_BUFFER_BUFFERPARAMETERS_H
#define GEOS_OP_BUFFER_BUFFERPARAMETERS_H
 
#include <geos/export.h>
 
//#include <vector>
 
//#include <geos/algorithm/LineIntersector.h> // for composition
//#include <geos/geom/Coordinate.h> // for composition
//#include <geos/geom/LineSegment.h> // for composition
 
#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 geom {
class CoordinateSequence;
class PrecisionModel;
}
namespace operation {
namespace buffer {
class OffsetCurveVertexList;
}
}
}
 
namespace geos {
namespace operation { // geos.operation
namespace buffer { // geos.operation.buffer
 
class GEOS_DLL BufferParameters {
 
public:
 
    enum EndCapStyle {
 
        CAP_ROUND = 1,
 
        CAP_FLAT = 2,
 
        CAP_SQUARE = 3
    };
 
    enum JoinStyle {
 
        JOIN_ROUND = 1,
 
        JOIN_MITRE = 2,
 
        JOIN_BEVEL = 3
    };
 
    //
    static const int DEFAULT_QUADRANT_SEGMENTS = 8;
 
    //
    static const double DEFAULT_MITRE_LIMIT; // 5.0 (in .cpp file)
 
    BufferParameters();
 
    //
    BufferParameters(int quadrantSegments);
 
    //
    BufferParameters(int quadrantSegments, EndCapStyle endCapStyle);
 
    //
    BufferParameters(int quadrantSegments, EndCapStyle endCapStyle,
                     JoinStyle joinStyle, double mitreLimit);
 
    //
    int
    getQuadrantSegments() const
    {
        return quadrantSegments;
    }
 
    //
    void setQuadrantSegments(int quadSegs);
 
    //
    static double bufferDistanceError(int quadSegs);
 
    //
    EndCapStyle
    getEndCapStyle() const
    {
        return endCapStyle;
    }
 
    //
    void
    setEndCapStyle(EndCapStyle style)
    {
        endCapStyle = style;
    }
 
    //
    JoinStyle
    getJoinStyle() const
    {
        return joinStyle;
    }
 
    //
    //
    void
    setJoinStyle(JoinStyle style)
    {
        joinStyle = style;
    }
 
    //
    double
    getMitreLimit() const
    {
        return mitreLimit;
    }
 
    //
    void
    setMitreLimit(double limit)
    {
        mitreLimit = limit;
    }
 
    void
    setSingleSided(bool p_isSingleSided)
    {
        _isSingleSided = p_isSingleSided;
    }
 
    bool
    isSingleSided() const
    {
        return _isSingleSided;
    }
 
 
private:
 
    int quadrantSegments;
 
    EndCapStyle endCapStyle;
 
    JoinStyle joinStyle;
 
    double mitreLimit;
 
    bool _isSingleSided;
};
 
} // namespace geos::operation::buffer
} // namespace geos::operation
} // namespace geos
 
#ifdef _MSC_VER
#pragma warning(pop)
#endif
 
#endif // ndef GEOS_OP_BUFFER_BUFFERPARAMETERS_H