GEOS  3.13.1
NodeSections.h
1 /**********************************************************************
2  *
3  * GEOS - Geometry Engine Open Source
4  * http://geos.osgeo.org
5  *
6  * Copyright (c) 2024 Martin Davis
7  * Copyright (C) 2024 Paul Ramsey <pramsey@cleverelephant.ca>
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 #pragma once
17 
18 #include <vector>
19 #include <memory>
20 #include <geos/operation/relateng/NodeSection.h>
21 #include <geos/export.h>
22 
23 
24 // Forward declarations
25 namespace geos {
26 namespace operation {
27 namespace relateng {
28 class RelateNode;
29 // class NodeSection;
30 }
31 }
32 namespace geom {
33  class CoordinateXY;
34  class Geometry;
35 }
36 }
37 
38 
39 using geos::geom::CoordinateXY;
41 
42 
43 namespace geos { // geos.
44 namespace operation { // geos.operation
45 namespace relateng { // geos.operation.relateng
46 
47 
48 class GEOS_DLL NodeSections {
49 
50 private:
51 
52  // Members
53  const CoordinateXY* nodePt;
54  std::vector<std::unique_ptr<NodeSection>> sections;
55 
56  // Methods
57 
63  void prepareSections();
64 
65  static bool hasMultiplePolygonSections(
66  std::vector<std::unique_ptr<NodeSection>>& sections,
67  std::size_t i);
68 
69  static std::vector<const NodeSection*> collectPolygonSections(
70  std::vector<std::unique_ptr<NodeSection>>& sections,
71  std::size_t i);
72 
73 
74 public:
75 
76  NodeSections(const CoordinateXY* pt)
77  : nodePt(pt)
78  {};
79 
80  const CoordinateXY* getCoordinate() const;
81 
82  void addNodeSection(NodeSection* e);
83 
84  bool hasInteractionAB() const;
85 
86  const Geometry* getPolygonal(bool isA) const;
87 
88  std::unique_ptr<RelateNode> createNode();
89 
94  NodeSections(const NodeSections&) = delete;
95  NodeSections& operator=(const NodeSections&) = delete;
96 
97 };
98 
99 } // namespace geos.operation.relateng
100 } // namespace geos.operation
101 } // namespace geos
102 
Basic implementation of Geometry, constructed and destructed by GeometryFactory.
Definition: Geometry.h:197
Basic namespace for all GEOS functionalities.
Definition: Angle.h:25