GEOS  3.13.0dev
GeometryCombiner.h
1 /**********************************************************************
2  *
3  * GEOS - Geometry Engine Open Source
4  * http://geos.osgeo.org
5  *
6  * Copyright (C) 2006-2011 Refractions Research Inc.
7  *
8  * This is free software; you can redistribute and/or modify it under
9  * the terms of the GNU Lesser General Public Licence as published
10  * by the Free Software Foundation.
11  * See the COPYING file for more information.
12  *
13  **********************************************************************
14  *
15  * Last port: geom/util/GeometryCombiner.java r320 (JTS-1.12)
16  *
17  **********************************************************************/
18 
19 #pragma once
20 
21 #include <memory>
22 #include <vector>
23 
24 #include <geos/export.h>
25 
26 // Forward declarations
27 namespace geos {
28 namespace geom {
29 class Geometry;
30 class GeometryFactory;
31 }
32 }
33 
34 namespace geos {
35 namespace geom { // geos.geom
36 namespace util { // geos.geom.util
37 
50 class GEOS_DLL GeometryCombiner {
51 public:
58  static std::unique_ptr<Geometry> combine(std::vector<const Geometry*> const& geoms);
59 
66  static std::unique_ptr<Geometry> combine(std::vector<std::unique_ptr<Geometry>> && geoms);
67 
75  static std::unique_ptr<Geometry> combine(const Geometry* g0, const Geometry* g1);
76 
84  static std::unique_ptr<Geometry> combine(std::unique_ptr<Geometry> && g0,
85  std::unique_ptr<Geometry> && g1);
86 
95  static std::unique_ptr<Geometry> combine(const Geometry* g0, const Geometry* g1, const Geometry* g2);
96 
105  static std::unique_ptr<Geometry> combine(std::unique_ptr<Geometry> && g0,
106  std::unique_ptr<Geometry> && g1,
107  std::unique_ptr<Geometry> && g2);
108 
109 private:
110  std::vector<std::unique_ptr<Geometry>> inputGeoms;
111  bool skipEmpty;
112 
113 public:
119  explicit GeometryCombiner(std::vector<const Geometry*> const& geoms);
120 
121  explicit GeometryCombiner(std::vector<std::unique_ptr<Geometry>> && geoms);
122 
129 
136  std::unique_ptr<Geometry> combine();
137 
141  void setSkipEmpty(bool);
142 
143  // Declare type as noncopyable
144  GeometryCombiner(const GeometryCombiner& other) = delete;
145  GeometryCombiner& operator=(const GeometryCombiner& rhs) = delete;
146 };
147 
148 } // namespace geos.geom.util
149 } // namespace geos.geom
150 } // namespace geos
151 
Supplies a set of utility methods for building Geometry objects from CoordinateSequence or other Geom...
Definition: GeometryFactory.h:65
Basic implementation of Geometry, constructed and destructed by GeometryFactory.
Definition: Geometry.h:186
Combines Geometrys to produce a GeometryCollection of the most appropriate type.
Definition: GeometryCombiner.h:50
static std::unique_ptr< Geometry > combine(std::vector< const Geometry * > const &geoms)
Copies a collection of geometries and combines the result.
static std::unique_ptr< Geometry > combine(std::unique_ptr< Geometry > &&g0, std::unique_ptr< Geometry > &&g1)
Combines two geometries.
static std::unique_ptr< Geometry > combine(const Geometry *g0, const Geometry *g1)
Copies two geometries and combines the result.
static std::unique_ptr< Geometry > combine(const Geometry *g0, const Geometry *g1, const Geometry *g2)
Copies three geometries and combines the result.
static std::unique_ptr< Geometry > combine(std::unique_ptr< Geometry > &&g0, std::unique_ptr< Geometry > &&g1, std::unique_ptr< Geometry > &&g2)
Combines three geometries.
GeometryFactory const * extractFactory() const
Extracts the GeometryFactory used by the geometries in a collection.
std::unique_ptr< Geometry > combine()
Computes the combination of the input geometries to produce the most appropriate Geometry or Geometry...
void setSkipEmpty(bool)
Set a flag indicating that empty geometries should be omitted from the result.
static std::unique_ptr< Geometry > combine(std::vector< std::unique_ptr< Geometry >> &&geoms)
Combines a collection of geometries.
GeometryCombiner(std::vector< const Geometry * > const &geoms)
Creates a new combiner for a collection of geometries.
Basic namespace for all GEOS functionalities.
Definition: Angle.h:25