GEOS  3.4.2
MCIndexPointSnapper.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/snapround/MCIndexPointSnapper.java r486 (JTS-1.12+)
16  *
17  **********************************************************************/
18 
19 #ifndef GEOS_NODING_SNAPROUND_MCINDEXPOINTSNAPPER_H
20 #define GEOS_NODING_SNAPROUND_MCINDEXPOINTSNAPPER_H
21 
22 #include <geos/export.h>
23 
24 #include <geos/inline.h>
25 
26 // Forward declarations
27 namespace geos {
28  namespace index {
29  class SpatialIndex;
30  }
31  namespace noding {
32  class SegmentString;
33  namespace snapround {
34  class HotPixel;
35  }
36  }
37 }
38 
39 namespace geos {
40 namespace noding { // geos::noding
41 namespace snapround { // geos::noding::snapround
42 
48 class GEOS_DLL MCIndexPointSnapper {
49 
50 public:
51 
52 
54  :
55  index(nIndex)
56  {}
57 
70  bool snap(HotPixel& hotPixel, SegmentString* parentEdge,
71  unsigned int vertexIndex);
72 
73  bool snap(HotPixel& hotPixel) {
74  return snap(hotPixel, 0, 0);
75  }
76 
77 
78 private:
79 
80  index::SpatialIndex& index;
81 
82  // Declare type as noncopyable
84  MCIndexPointSnapper& operator=(const MCIndexPointSnapper& rhs);
85 };
86 
87 
88 } // namespace geos::noding::snapround
89 } // namespace geos::noding
90 } // namespace geos
91 
92 #endif // GEOS_NODING_SNAPROUND_MCINDEXPOINTSNAPPER_H
Implements a &quot;hot pixel&quot; as used in the Snap Rounding algorithm.
Definition: HotPixel.h:62
An interface for classes which represent a sequence of contiguous line segments.
Definition: SegmentString.h:46
Abstract class defines basic insertion and query operations supported by classes implementing spatial...
Definition: SpatialIndex.h:47
&quot;Snaps&quot; all SegmentStrings in a SpatialIndex containing MonotoneChains to a given HotPixel...
Definition: MCIndexPointSnapper.h:48