GEOS  3.13.0dev
quadtree/Root.h
1 /**********************************************************************
2  *
3  * GEOS - Geometry Engine Open Source
4  * http://geos.osgeo.org
5  *
6  * Copyright (C) 2006 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: index/quadtree/Root.java rev 1.7 (JTS-1.10)
16  *
17  **********************************************************************/
18 
19 #pragma once
20 
21 #include <geos/export.h>
22 #include <geos/index/quadtree/NodeBase.h> // for inheritance
23 #include <geos/geom/Coordinate.h> // for composition
24 
25 // Forward declarations
26 namespace geos {
27 namespace geom {
28 class Envelope;
29 }
30 namespace index {
31 namespace quadtree {
32 class Node;
33 }
34 }
35 }
36 
37 namespace geos {
38 namespace index { // geos::index
39 namespace quadtree { // geos::index::quadtree
40 
48 class GEOS_DLL Root: public NodeBase {
49 //friend class Unload;
50 
51 private:
52 
53  static const geom::Coordinate origin;
54 
60  void insertContained(Node* tree, const geom::Envelope* itemEnv,
61  void* item);
62 
63 public:
64 
65  Root() {}
66 
67  ~Root() override {}
68 
72  void insert(const geom::Envelope* itemEnv, void* item);
73 
74 protected:
75 
76  bool
77  isSearchMatch(const geom::Envelope& /* searchEnv */) const override
78  {
79  return true;
80  }
81 
82 };
83 
84 } // namespace geos::index::quadtree
85 } // namespace geos::index
86 } // namespace geos
87 
Coordinate is the lightweight class used to store coordinates.
Definition: Coordinate.h:216
An Envelope defines a rectangulare region of the 2D coordinate plane.
Definition: Envelope.h:58
The base class for nodes in a Quadtree.
Definition: quadtree/NodeBase.h:54
Represents a node of a Quadtree.
Definition: index/quadtree/Node.h:54
QuadRoot is the root of a single Quadtree. It is centred at the origin, and does not have a defined e...
Definition: quadtree/Root.h:48
void insert(const geom::Envelope *itemEnv, void *item)
Basic namespace for all GEOS functionalities.
Definition: Angle.h:25