BufferParameters.h

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/**********************************************************************
 *
 * 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