GEOS  3.8.0dev
SegmentIntersectionTester.h
1 /**********************************************************************
2  *
3  * GEOS - Geometry Engine Open Source
4  * http://geos.osgeo.org
5  *
6  * Copyright (C) 2011 Sandro Santilli <strk@kbt.io>
7  * Copyright (C) 2006 Refractions Research 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: operation/predicate/SegmentIntersectionTester.java r378 (JTS-1.12)
17  *
18  **********************************************************************/
19 
20 #ifndef GEOS_OP_PREDICATE_SEGMENTINTERSECTIONTESTER_H
21 #define GEOS_OP_PREDICATE_SEGMENTINTERSECTIONTESTER_H
22 
23 #include <geos/export.h>
24 
25 #include <geos/algorithm/LineIntersector.h> // for composition
26 #include <geos/geom/Coordinate.h> // for composition
27 
28 // Forward declarations
29 namespace geos {
30 namespace geom {
31 class LineString;
32 class CoordinateSequence;
33 }
34 }
35 
36 namespace geos {
37 namespace operation { // geos::operation
38 namespace predicate { // geos::operation::predicate
39 
48 class GEOS_DLL SegmentIntersectionTester {
49 
50 private:
51 
56  algorithm::LineIntersector li; // Robust
57 
58  bool hasIntersectionVar;
59 
60  geom::Coordinate pt10;
61  geom::Coordinate pt11;
62  geom::Coordinate pt00;
63  geom::Coordinate pt01;
64 
65 
66 public:
67 
68  SegmentIntersectionTester(): hasIntersectionVar(false) {}
69 
70  bool hasIntersectionWithLineStrings(const geom::LineString& line,
71  const std::vector<const geom::LineString*>& lines);
72 
73  bool hasIntersection(const geom::LineString& line,
74  const geom::LineString& testLine);
75 
90  bool hasIntersectionWithEnvelopeFilter(const geom::LineString& line,
91  const geom::LineString& testLine);
92 
93 
94 };
95 
96 } // namespace geos::operation::predicate
97 } // namespace geos::operation
98 } // namespace geos
99 
100 #endif // ifndef GEOS_OP_PREDICATE_SEGMENTINTERSECTIONTESTER_H
Coordinate is the lightweight class used to store coordinates.
Definition: Coordinate.h:60
Definition: LineString.h:69
A LineIntersector is an algorithm that can both test whether two line segments intersect and compute ...
Definition: LineIntersector.h:49
Tests if any line segments in two sets of CoordinateSequences intersect.
Definition: SegmentIntersectionTester.h:48
Basic namespace for all GEOS functionalities.
Definition: IndexedNestedRingTester.h:25