GEOS 3.9.1
LinearRing.h
1/**********************************************************************
2 *
3 * GEOS - Geometry Engine Open Source
4 * http://geos.osgeo.org
5 *
6 * Copyright (C) 2001-2002 Vivid Solutions Inc.
7 * Copyright (C) 2005 2006 Refractions Research Inc.
8 *
9 * This is free software; you can redistribute and/or modify it under
10 * the terms of the GNU Lesser General Public Licence as published
11 * by the Free Software Foundation.
12 * See the COPYING file for more information.
13 *
14 **********************************************************************
15 *
16 * Last port: geom/LinearRing.java r320 (JTS-1.12)
17 *
18 **********************************************************************/
19
20#ifndef GEOS_GEOS_LINEARRING_H
21#define GEOS_GEOS_LINEARRING_H
22
23#include <geos/export.h>
24#include <string>
25#include <vector>
26#include <geos/geom/LineString.h>
27
28#include <geos/inline.h>
29
30// Forward declarations
31namespace geos {
32namespace geom { // geos::geom
33class Coordinate;
34class CoordinateArraySequence;
35}
36}
37
38namespace geos {
39namespace geom { // geos::geom
40
54class GEOS_DLL LinearRing : public LineString {
55
56public:
57
62 static const unsigned int MINIMUM_VALID_SIZE = 4;
63
64 LinearRing(const LinearRing& lr);
65
79 const GeometryFactory* newFactory);
80
82 LinearRing(CoordinateSequence::Ptr && points,
83 const GeometryFactory& newFactory);
84
85 std::unique_ptr<Geometry>
86 clone() const override
87 {
88 return std::unique_ptr<Geometry>(new LinearRing(*this));
89 }
90
91 ~LinearRing() override = default;
92
99 int getBoundaryDimension() const override;
100
101 bool isClosed() const override;
102
103 std::string getGeometryType() const override;
104
106
107 void setPoints(const CoordinateSequence* cl);
108
109 std::unique_ptr<Geometry> reverse() const override;
110
111protected:
112
113 int
114 getSortIndex() const override
115 {
116 return SORTINDEX_LINEARRING;
117 };
118
119
120private:
121
122 void validateConstruction();
123};
124
125
126} // namespace geos::geom
127} // namespace geos
128
129#endif // ndef GEOS_GEOS_LINEARRING_H
The internal representation of a list of coordinates inside a Geometry.
Definition: CoordinateSequence.h:58
Supplies a set of utility methods for building Geometry objects from CoordinateSequence or other Geom...
Definition: GeometryFactory.h:68
Definition: LineString.h:68
Models an OGC SFS LinearRing. A LinearRing is a LineString which is both closed and simple.
Definition: LinearRing.h:54
std::unique_ptr< Geometry > reverse() const override
Computes a new geometry which has all component coordinate sequences in reverse order (opposite orien...
int getBoundaryDimension() const override
Returns Dimension.FALSE, since by definition LinearRings do not have a boundary.
std::unique_ptr< Geometry > clone() const override
Make a deep-copy of this Geometry.
Definition: LinearRing.h:86
LinearRing(CoordinateSequence::Ptr &&points, const GeometryFactory &newFactory)
Hopefully cleaner version of the above.
std::string getGeometryType() const override
Return a string representation of this Geometry type.
GeometryTypeId getGeometryTypeId() const override
Return an integer representation of this Geometry type.
LinearRing(CoordinateSequence *points, const GeometryFactory *newFactory)
Constructs a LinearRing with the given points.
GeometryTypeId
Geometry types.
Definition: Geometry.h:75
Basic namespace for all GEOS functionalities.
Definition: IndexedNestedRingTester.h:26