GEOS 3.4.2

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bintree/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 #ifndef GEOS_IDX_BINTREE_ROOT_H
16 #define GEOS_IDX_BINTREE_ROOT_H
17
18 #include <geos/export.h>
19 #include <geos/index/bintree/NodeBase.h> // for inheritance
20
21 // Forward declarations
22 namespace geos {
23 namespace index {
24 namespace bintree {
25 class Interval;
26 class Node;
27 }
28 }
29 }
30
31 namespace geos {
32 namespace index { // geos::index
33 namespace bintree { // geos::index::bintree
34
41 class GEOS_DLL Root: public NodeBase {
42
43 private:
44
45 // the singleton root node is centred at the origin.
46 static double origin;
47
48 void insertContained(Node *tree,
49 Interval *itemInterval,
50 void* item);
51
52 public:
53
54 Root() {}
55
56 ~Root() {}
57
64 void insert(Interval *itemInterval, void* item);
65
66 protected:
67
68 bool isSearchMatch(Interval* /*interval*/) { return true; }
69 };
70
71 } // namespace geos::index::bintree
72 } // namespace geos::index
73 } // namespace geos
74
75 #endif // GEOS_IDX_BINTREE_ROOT_H
76