GEOS: SegmentNode.h Source File

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SegmentNode.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 * Last port: noding/SegmentNode.java rev. 1.6 (JTS-1.9)
16 *
17 **********************************************************************/
18
19 #ifndef GEOS_NODING_SEGMENTNODE_H
20 #define GEOS_NODING_SEGMENTNODE_H
21
22 #include <geos/export.h>
23
24 #include <vector>
25 #include <iostream>
26
27 #include <geos/inline.h>
28
29 #include <geos/geom/Coordinate.h>
30
31 // Forward declarations
32 namespace geos {
33 namespace noding {
34 class NodedSegmentString;
35 }
36 }
37
38 namespace geos {
39 namespace noding { // geos.noding
40
42 //
45 class GEOS_DLL SegmentNode {
46 private:
47 const NodedSegmentString& segString;
48
49 int segmentOctant;
50
51 bool isInteriorVar;
52
53 // Declare type as noncopyable
54 SegmentNode(const SegmentNode& other);
55 SegmentNode& operator=(const SegmentNode& rhs);
56
57 public:
58 friend std::ostream& operator<< (std::ostream& os, const SegmentNode& n);
59
61 geom::Coordinate coord;
62
64 unsigned int segmentIndex;
65
67 //
78 SegmentNode(const NodedSegmentString& ss,
79 const geom::Coordinate& nCoord,
80 unsigned int nSegmentIndex, int nSegmentOctant);
81
82 ~SegmentNode() {}
83
89 bool isInterior() const { return isInteriorVar; }
90
91 bool isEndPoint(unsigned int maxSegmentIndex) const;
92
100 int compareTo(const SegmentNode& other);
101
102 //string print() const;
103 };
104
105 std::ostream& operator<< (std::ostream& os, const SegmentNode& n);
106
107 struct GEOS_DLL SegmentNodeLT {
108 bool operator()(SegmentNode *s1, SegmentNode *s2) const {
109 return s1->compareTo(*s2)<0;
110 }
111 };
112
113
114 } // namespace geos.noding
115 } // namespace geos
116
117 #endif // GEOS_NODING_SEGMENTNODE_H
geos::noding::SegmentNode::segmentIndex
unsigned int segmentIndex
the index of the containing line segment in the parent edge
Definition: SegmentNode.h:64
geos::geom::Coordinate
Coordinate is the lightweight class used to store coordinates.
Definition: Coordinate.h:60
geos::noding::NodedSegmentString
Represents a list of contiguous line segments, and supports noding the segments.
Definition: NodedSegmentString.h:57
geos::noding::SegmentNode::coord
geom::Coordinate coord
the point of intersection (own copy)
Definition: SegmentNode.h:61
geos::noding::SegmentNode::isInterior
bool isInterior() const
Return true if this Node is internal (not on the boundary) of the corresponding segment. Currently only the first segment endpoint is checked, actually.
Definition: SegmentNode.h:89
geos
Basic namespace for all GEOS functionalities.
Definition: IndexedNestedRingTester.h:25
geos::noding::SegmentNode
Represents an intersection point between two NodedSegmentString.
Definition: SegmentNode.h:45
geos::noding::SegmentNode::compareTo
int compareTo(const SegmentNode &other)