WKTWriter.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2011 Sandro Santilli <strk@kbt.io>
 * 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: io/WKTWriter.java rev. 1.34 (JTS-1.7)
 *
 **********************************************************************/
 
#pragma once
 
#include <geos/export.h>
#include <geos/io/OrdinateSet.h>
 
#include <string>
#include <cctype>
#include <cstdint>
 
#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 Coordinate;
class CoordinateXY;
class CoordinateXYZM;
class CoordinateSequence;
class Geometry;
class GeometryCollection;
class Point;
class LineString;
class LinearRing;
class Polygon;
class MultiPoint;
class MultiLineString;
class MultiPolygon;
class PrecisionModel;
}
namespace io {
class Writer;
}
}
 
 
namespace geos {
namespace io {
 
class GEOS_DLL WKTWriter {
public:
    WKTWriter();
    ~WKTWriter() = default;
 
    //string(count, ch) can be used for this
    //static string stringOfChar(char ch, int count);
 
    std::string write(const geom::Geometry* geometry);
 
    std::string write(const geom::Geometry& geometry);
 
    // Send Geometry's WKT to the given Writer
    void write(const geom::Geometry* geometry, Writer* writer);
 
    std::string writeFormatted(const geom::Geometry* geometry);
 
    void writeFormatted(const geom::Geometry* geometry, Writer* writer);
 
    static std::string toLineString(const geom::CoordinateSequence& seq);
 
    static std::string toLineString(const geom::Coordinate& p0, const geom::Coordinate& p1);
 
    static std::string toPoint(const geom::Coordinate& p0);
    static std::string toPoint(const geom::CoordinateXY& p0);
 
    void setRoundingPrecision(int p0);
 
    void setTrim(bool p0);
 
    void setRemoveEmptyDimensions(bool remove)
    {
        removeEmptyDimensions = remove;
    }
 
    void
    setOld3D(bool useOld3D)
    {
        old3D = useOld3D;
    }
 
    /*
     * \brief
     * Returns the output dimension used by the
     * <code>WKTWriter</code>.
     */
    int
    getOutputDimension() const
    {
        return defaultOutputDimension;
    }
 
    /*
     * Sets the output dimension used by the <code>WKTWriter</code>.
     *
     * @param newOutputDimension Supported values are 2, 3 or 4.
     *        Default since GEOS 3.12 is 4.
     *        Note that 3 indicates up to 3 dimensions will be
     *        written but 2D WKT is still produced for 2D geometries.
     */
    void setOutputDimension(uint8_t newOutputDimension);
 
    static std::string writeNumber(double d, bool trim, uint32_t precision);
    static int writeTrimmedNumber(double d, uint32_t precision, char* buf);
 
protected:
 
    int decimalPlaces;
 
    void appendGeometryTaggedText(
            const geom::Geometry& geometry,
            OrdinateSet outputOrdinates,
            int level,
            Writer& writer) const;
 
    void appendPointTaggedText(
        const geom::Point& point,
        OrdinateSet outputOrdinates,
        int level, Writer& writer) const;
 
    void appendLineStringTaggedText(
        const geom::LineString& lineString,
        OrdinateSet outputOrdinates,
        int level, Writer& writer) const;
 
    void appendLinearRingTaggedText(
        const geom::LinearRing& lineString,
        OrdinateSet outputOrdinates,
        int level, Writer& writer) const;
 
    void appendPolygonTaggedText(
        const geom::Polygon& polygon,
        OrdinateSet outputOrdinates,
        int level, Writer& writer) const;
 
    void appendMultiPointTaggedText(
        const geom::MultiPoint& multipoint,
        OrdinateSet outputOrdinates,
        int level, Writer& writer) const;
 
    void appendMultiLineStringTaggedText(
        const geom::MultiLineString& multiLineString,
        OrdinateSet outputOrdinates,
        int level, Writer& writer) const;
 
    void appendMultiPolygonTaggedText(
        const geom::MultiPolygon& multiPolygon,
        OrdinateSet outputOrdinates,
        int level, Writer& writer) const;
 
    void appendGeometryCollectionTaggedText(
        const geom::GeometryCollection& geometryCollection,
        OrdinateSet outputOrdinates,
        int level, Writer& writer) const;
 
    void appendOrdinateText(OrdinateSet outputOrdinates,
                            Writer& writer) const;
 
    void appendSequenceText(const geom::CoordinateSequence& seq,
                            OrdinateSet outputOrdinates,
                            int level,
                            bool doIntent,
                            Writer& writer) const;
 
    void appendCoordinate(const geom::CoordinateXYZM& coordinate,
                          OrdinateSet outputOrdinates,
                          Writer& writer) const;
 
    std::string writeNumber(double d) const;
 
    void appendLineStringText(
        const geom::LineString& lineString,
        OrdinateSet outputOrdinates,
        int level, bool doIndent, Writer& writer) const;
 
    void appendPolygonText(
        const geom::Polygon& polygon,
        OrdinateSet outputOrdinates,
        int level, bool indentFirst, Writer& writer) const;
 
    void appendMultiPointText(
        const geom::MultiPoint& multiPoint,
        OrdinateSet outputOrdinates,
        int level, Writer& writer) const;
 
    void appendMultiLineStringText(
        const geom::MultiLineString& multiLineString,
        OrdinateSet outputOrdinates,
        int level, bool indentFirst, Writer& writer) const;
 
    void appendMultiPolygonText(
        const geom::MultiPolygon& multiPolygon,
        OrdinateSet outputOrdinates,
        int level, Writer& writer) const;
 
    void appendGeometryCollectionText(
        const geom::GeometryCollection& geometryCollection,
        OrdinateSet outputOrdinates,
        int level, Writer& writer) const;
 
private:
 
    enum {
        INDENT = 2
    };
 
//      static const int INDENT = 2;
 
    bool isFormatted;
 
    int roundingPrecision;
 
    bool trim;
 
    bool removeEmptyDimensions = false;
 
    int level;
 
    static constexpr int coordsPerLine = 10;
 
    uint8_t defaultOutputDimension;
    bool old3D;
 
    void writeFormatted(
        const geom::Geometry* geometry,
        bool isFormatted, Writer* writer);
 
    void indent(int level, Writer* writer) const;
};
 
} // namespace geos::io
} // namespace geos
 
#ifdef _MSC_VER
#pragma warning(pop)
#endif