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ExtractLineByLocation.h
1 /**********************************************************************
2 * $Id: ExtractLineByLocation.h 2809 2009-12-06 01:05:24Z mloskot $
3 *
4 * GEOS - Geometry Engine Open Source
5 * http://geos.refractions.net
6 *
7 * Copyright (C) 2005-2006 Refractions Research Inc.
8 * Copyright (C) 2001-2002 Vivid Solutions Inc.
9 *
10 * This is free software; you can redistribute and/or modify it under
11 * the terms of the GNU Lesser General Public Licence as published
12 * by the Free Software Foundation.
13 * See the COPYING file for more information.
14 *
15 **********************************************************************
16 *
17 * Last port: linearref/ExtractLineByLocation.java rev. 1.10
18 *
19 **********************************************************************/
20
21 #ifndef GEOS_LINEARREF_EXTRACTLINEBYLOCATION_H
22 #define GEOS_LINEARREF_EXTRACTLINEBYLOCATION_H
23
24 #include <geos/geom/Coordinate.h>
25 #include <geos/geom/Geometry.h>
26 #include <geos/linearref/LinearLocation.h>
27
28 namespace geos
29 {
30 namespace linearref // geos::linearref
31 {
32
37 class ExtractLineByLocation
38 {
39
40 private:
41 const geom::Geometry *line;
42 geom::Geometry *reverse(const geom::Geometry *linear);
43
51 geom::LineString* computeLine(const LinearLocation& start, const LinearLocation& end);
52
60 geom::Geometry *computeLinear(const LinearLocation& start, const LinearLocation& end);
61
62 public:
74 static geom::Geometry *extract(const geom::Geometry *line, const LinearLocation& start, const LinearLocation& end);
75
76 ExtractLineByLocation(const geom::Geometry *line);
77
86 geom::Geometry *extract(const LinearLocation& start, const LinearLocation& end);
87
88 };
89 }
90 }
91 #endif