GEOS  3.9.1dev
geomgraph/index/MonotoneChain.h
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1 /**********************************************************************
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6  * Copyright (C) 2005-2006 Refractions Research Inc.
7  * Copyright (C) 2001-2002 Vivid Solutions Inc.
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16  * Last port: geomgraph/index/MonotoneChain.java rev. 1.3 (JTS-1.7)
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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
28 
29 // Forward declarations
30 namespace geos {
31 namespace geomgraph {
32 namespace index {
33 class SegmentIntersector;
34 }
35 }
36 }
37 
38 namespace geos {
39 namespace geomgraph { // geos::geomgraph
40 namespace index { // geos::geomgraph::index
41 
46 private:
48  size_t chainIndex;
49 
50  MonotoneChain(const MonotoneChain& other) = delete;
51  MonotoneChain& operator=(const MonotoneChain& rhs) = delete;
52 
53 public:
54 
55  MonotoneChain(MonotoneChainEdge* newMce, size_t newChainIndex):
56  mce(newMce),
57  chainIndex(newChainIndex)
58  {}
59 
60  ~MonotoneChain() override {}
61 
62  void
64  {
65  mce->computeIntersectsForChain(chainIndex, *(mc->mce), mc->chainIndex, *si);
66  }
67 };
68 
69 
70 } // namespace geos.geomgraph.index
71 } // namespace geos.geomgraph
72 } // namespace geos
73 
74 #endif
75 
MonotoneChains are a way of partitioning the segments of an edge to allow for fast searching of inter...
void computeIntersections(MonotoneChain *mc, SegmentIntersector *si)
#define GEOS_DLL
Definition: export.h:28
Computes the intersection of line segments, and adds the intersection to the edges containing the seg...
Basic namespace for all GEOS functionalities.
void computeIntersectsForChain(size_t chainIndex0, const MonotoneChainEdge &mce, size_t chainIndex1, SegmentIntersector &si)
MonotoneChain(MonotoneChainEdge *newMce, size_t newChainIndex)