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geomgraph/index/MonotoneChain.h
1 /**********************************************************************
2 *
3 * GEOS - Geometry Engine Open Source
4 * http://geos.osgeo.org
5 *
6 * Copyright (C) 2005-2006 Refractions Research Inc.
7 * Copyright (C) 2001-2002 Vivid Solutions Inc.
8 *
9 * This is free software; you can redistribute and/or modify it under
10 * the terms of the GNU Lesser General Public Licence as published
11 * by the Free Software Foundation.
12 * See the COPYING file for more information.
13 *
14 **********************************************************************
15 *
16 * Last port: geomgraph/index/MonotoneChain.java rev. 1.3 (JTS-1.7)
17 *
18 **********************************************************************/
19
20 #ifndef GEOS_GEOMGRAPH_INDEX_MONOTONECHAIN_H
21 #define GEOS_GEOMGRAPH_INDEX_MONOTONECHAIN_H
22
23
24 #include <geos/export.h>
25 #include <geos/geomgraph/index/SweepLineEventObj.h> // for inheritance
26 #include <geos/geomgraph/index/MonotoneChainEdge.h> // for inline
27
28 // Forward declarations
29 namespace geos {
30 namespace geomgraph {
31 namespace index {
32 class SegmentIntersector;
33 }
34 }
35 }
36
37 namespace geos {
38 namespace geomgraph { // geos::geomgraph
39 namespace index { // geos::geomgraph::index
40
44 class GEOS_DLL MonotoneChain: public SweepLineEventOBJ {
45 private:
46 MonotoneChainEdge *mce;
47 int chainIndex;
48
49 public:
50
51 MonotoneChain(MonotoneChainEdge *newMce, int newChainIndex):
52 mce(newMce),
53 chainIndex(newChainIndex)
54 {}
55
56 ~MonotoneChain() {}
57
58 void computeIntersections(MonotoneChain *mc,SegmentIntersector *si) {
59 mce->computeIntersectsForChain(chainIndex,*(mc->mce),mc->chainIndex,*si);
60 }
61 };
62
63
64
65
66 } // namespace geos.geomgraph.index
67 } // namespace geos.geomgraph
68 } // namespace geos
69
70 #endif
71