Geometry.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2009 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: geom/Geometry.java rev. 1.112
 *
 **********************************************************************/
 
#ifndef GEOS_GEOM_GEOMETRY_H
#define GEOS_GEOM_GEOMETRY_H
 
#ifndef USE_UNSTABLE_GEOS_CPP_API
#ifndef _MSC_VER
# warning "The GEOS C++ API is unstable, please use the C API instead"
# warning "HINT: #include geos_c.h"
#else
#pragma message("The GEOS C++ API is unstable, please use the C API instead")
#pragma message("HINT: #include geos_c.h")
#endif
#endif
 
#include <geos/export.h>
#include <geos/inline.h>
#include <geos/geom/Envelope.h>
#include <geos/geom/Dimension.h> // for Dimension::DimensionType
#include <geos/geom/GeometryComponentFilter.h> // for inheritance
#include <geos/geom/IntersectionMatrix.h>
 
#include <algorithm>
#include <string>
#include <iostream>
#include <vector>
#include <memory>
 
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
#pragma warning(disable: 4355) // warning C4355: 'this' : used in base member initializer list
#endif
 
// Forward declarations
namespace geos {
namespace geom {
class Coordinate;
class CoordinateFilter;
class CoordinateSequence;
class CoordinateSequenceFilter;
class GeometryComponentFilter;
class GeometryFactory;
class GeometryFilter;
class PrecisionModel;
class Point;
}
namespace io { // geos.io
class Unload;
} // namespace geos.io
}
 
namespace geos {
namespace geom { // geos::geom
 
enum GeometryTypeId {
    GEOS_POINT,
    GEOS_LINESTRING,
    GEOS_LINEARRING,
    GEOS_POLYGON,
    GEOS_MULTIPOINT,
    GEOS_MULTILINESTRING,
    GEOS_MULTIPOLYGON,
    GEOS_GEOMETRYCOLLECTION
};
 
enum GeometrySortIndex {
    SORTINDEX_POINT = 0,
    SORTINDEX_MULTIPOINT = 1,
    SORTINDEX_LINESTRING = 2,
    SORTINDEX_LINEARRING = 3,
    SORTINDEX_MULTILINESTRING = 4,
    SORTINDEX_POLYGON = 5,
    SORTINDEX_MULTIPOLYGON = 6,
    SORTINDEX_GEOMETRYCOLLECTION = 7
};
 
class GEOS_DLL Geometry {
 
public:
 
    friend class GeometryFactory;
 
    using ConstVect = std::vector<const Geometry*>;
 
    using NonConstVect = std::vector<Geometry*>;
 
    using Ptr = std::unique_ptr<Geometry> ;
 
    virtual std::unique_ptr<Geometry> clone() const = 0;
 
    virtual ~Geometry();
 
 
    const GeometryFactory*
    getFactory() const
    {
        return _factory;
    }
 
    void
    setUserData(void* newUserData)
    {
        _userData = newUserData;
    }
 
    void*
    getUserData() const
    {
        return _userData;
    }
 
    virtual int
    getSRID() const
    {
        return SRID;
    }
 
    virtual void
    setSRID(int newSRID)
    {
        SRID = newSRID;
    }
 
    const PrecisionModel* getPrecisionModel() const;
 
    virtual const Coordinate* getCoordinate() const = 0; //Abstract
 
    virtual std::unique_ptr<CoordinateSequence> getCoordinates() const = 0; //Abstract
 
    virtual std::size_t getNumPoints() const = 0; //Abstract
 
    virtual bool isSimple() const;
 
    virtual std::string getGeometryType() const = 0; //Abstract
 
    virtual GeometryTypeId getGeometryTypeId() const = 0; //Abstract
 
    virtual std::size_t
    getNumGeometries() const
    {
        return 1;
    }
 
    virtual const Geometry*
    getGeometryN(std::size_t /*n*/) const
    {
        return this;
    }
 
    virtual bool isValid() const;
 
    virtual bool isEmpty() const = 0; //Abstract
 
    virtual bool
    isRectangle() const
    {
        return false;
    }
 
    virtual Dimension::DimensionType getDimension() const = 0; //Abstract
 
    virtual bool isDimensionStrict(Dimension::DimensionType d) const {
        return d == getDimension();
    }
 
    bool isPuntal() const {
        return isDimensionStrict(Dimension::P);
    }
 
    bool isLineal()