GEOS 3.9.1
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#ifndef GEOS_IDX_QUADTREE_ROOT_H
20#define GEOS_IDX_QUADTREE_ROOT_H
21
22#include <geos/export.h>
23#include <geos/index/quadtree/NodeBase.h> // for inheritance
24#include <geos/geom/Coordinate.h> // for composition
25
26// Forward declarations
27namespace geos {
28namespace geom {
29class Envelope;
30}
31namespace index {
32namespace quadtree {
33class Node;
34}
35}
36}
37
38namespace geos {
39namespace index { // geos::index
40namespace quadtree { // geos::index::quadtree
41
49class GEOS_DLL Root: public NodeBase {
50//friend class Unload;
51
52private:
53
54 static const geom::Coordinate origin;
55
61 void insertContained(Node* tree, const geom::Envelope* itemEnv,
62 void* item);
63
64public:
65
66 Root() {}
67
68 ~Root() override {}
69
73 void insert(const geom::Envelope* itemEnv, void* item);
74
75protected:
76
77 bool
78 isSearchMatch(const geom::Envelope& /* searchEnv */) const override
79 {
80 return true;
81 }
82
83};
84
85} // namespace geos::index::quadtree
86} // namespace geos::index
87} // namespace geos
88
89#endif // GEOS_IDX_QUADTREE_ROOT_H
Coordinate is the lightweight class used to store coordinates.
Definition: Coordinate.h:60
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:55
Represents a node of a Quadtree.
Definition: index/quadtree/Node.h:55
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:49
void insert(const geom::Envelope *itemEnv, void *item)
Basic namespace for all GEOS functionalities.
Definition: IndexedNestedRingTester.h:26