GEOS: Root.h Source File

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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
27 namespace geos {
28 namespace geom {
29 class Envelope;
30 }
31 namespace index {
32 namespace quadtree {
33 class Node;
34 }
35 }
36 }
37
38 namespace geos {
39 namespace index { // geos::index
40 namespace quadtree { // geos::index::quadtree
41
49 class GEOS_DLL Root: public NodeBase {
50 //friend class Unload;
51
52 private:
53
54 static const geom::Coordinate origin;
55
61 void insertContained(Node *tree, const geom::Envelope *itemEnv,
62 void* item);
63
64 public:
65
66 Root() {}
67
68 virtual ~Root() {}
69
73 void insert(const geom::Envelope *itemEnv, void* item);
74
75 protected:
76
77 bool isSearchMatch(const geom::Envelope& /* searchEnv */) const {
78 return true;
79 }
80
81 };
82
83 } // namespace geos::index::quadtree
84 } // namespace geos::index
85 } // namespace geos
86
87 #endif // GEOS_IDX_QUADTREE_ROOT_H
geos::geom::Envelope
An Envelope defines a rectangulare region of the 2D coordinate plane.
Definition: Envelope.h:53
geos::index::quadtree::Root
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
geos::geom::Coordinate
Coordinate is the lightweight class used to store coordinates.
Definition: Coordinate.h:60
geos::index::quadtree::NodeBase
The base class for nodes in a Quadtree.
Definition: quadtree/NodeBase.h:54
geos
Basic namespace for all GEOS functionalities.
Definition: IndexedNestedRingTester.h:25
geos::index::quadtree::Node
Represents a node of a Quadtree.
Definition: index/quadtree/Node.h:55