GEOS  3.8.0dev
bintree/NodeBase.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_NODEBASE_H
16 #define GEOS_IDX_BINTREE_NODEBASE_H
17 
18 #include <geos/export.h>
19 #include <vector>
20 
21 // Forward declarations
22 namespace geos {
23 namespace index {
24 namespace bintree {
25 class Node;
26 class Interval;
27 }
28 }
29 }
30 
31 namespace geos {
32 namespace index { // geos::index
33 namespace bintree { // geos::index::bintree
34 
36 class GEOS_DLL NodeBase {
37 
38 public:
39 
40  static int getSubnodeIndex(Interval* interval, double centre);
41 
42  NodeBase();
43 
44  virtual ~NodeBase();
45 
46  virtual std::vector<void*>* getItems();
47 
48  virtual void add(void* item);
49 
50  virtual std::vector<void*>* addAllItems(std::vector<void*>* newItems);
51 
52  virtual std::vector<void*>* addAllItemsFromOverlapping(Interval* interval,
53  std::vector<void*>* resultItems);
54 
55  virtual int depth();
56 
57  virtual int size();
58 
59  virtual int nodeSize();
60 
61 protected:
62 
63  std::vector<void*>* items;
64 
70  Node* subnode[2];
71 
72  virtual bool isSearchMatch(Interval* interval) = 0;
73 };
74 
75 } // namespace geos::index::bintree
76 } // namespace geos::index
77 } // namespace geos
78 
79 #endif // GEOS_IDX_BINTREE_NODEBASE_H
80 
Represents an (1-dimensional) closed interval on the Real number line.
Definition: bintree/Interval.h:25
The base class for nodes in a Bintree.
Definition: bintree/NodeBase.h:36
Basic namespace for all GEOS functionalities.
Definition: IndexedNestedRingTester.h:25
A node of a Bintree.
Definition: index/bintree/Node.h:35