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ExtractLineByLocation.h
1 /**********************************************************************
2 *
3 * GEOS - Geometry Engine Open Source
4 * http://geos.osgeo.org
5 *
6 * Copyright (C) 2005-2006 Refractions Research Inc.
7 * Copyright (C) 2001-2002 Vivid Solutions 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: linearref/ExtractLineByLocation.java rev. 1.10
17 *
18 **********************************************************************/
19
20 #ifndef GEOS_LINEARREF_EXTRACTLINEBYLOCATION_H
21 #define GEOS_LINEARREF_EXTRACTLINEBYLOCATION_H
22
23 #include <geos/geom/Coordinate.h>
24 #include <geos/geom/Geometry.h>
25 #include <geos/linearref/LinearLocation.h>
26
27 namespace geos
28 {
29 namespace linearref // geos::linearref
30 {
31
36 class ExtractLineByLocation
37 {
38
39 private:
40 const geom::Geometry *line;
41 geom::Geometry *reverse(const geom::Geometry *linear);
42
50 geom::LineString* computeLine(const LinearLocation& start, const LinearLocation& end);
51
59 geom::Geometry *computeLinear(const LinearLocation& start, const LinearLocation& end);
60
61 public:
73 static geom::Geometry *extract(const geom::Geometry *line, const LinearLocation& start, const LinearLocation& end);
74
75 ExtractLineByLocation(const geom::Geometry *line);
76
85 geom::Geometry *extract(const LinearLocation& start, const LinearLocation& end);
86
87 };
88 }
89 }
90 #endif