/src/geos/include/geos/noding/Noder.h
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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 | | #pragma once |
16 | | |
17 | | #include <geos/export.h> |
18 | | |
19 | | #include <vector> |
20 | | #include <iostream> |
21 | | |
22 | | // Forward declarations |
23 | | namespace geos { |
24 | | namespace noding { |
25 | | class SegmentString; |
26 | | } |
27 | | } |
28 | | |
29 | | namespace geos { |
30 | | namespace noding { // geos.noding |
31 | | |
32 | | |
33 | | /** \brief |
34 | | * Computes all intersections between segments in a set of SegmentString. |
35 | | * |
36 | | * Intersections found are represented as [SegmentNodes](@ref SegmentNode) and |
37 | | * added to the [SegmentStrings](@ref SegmentString) in which they occur. |
38 | | * As a final step in the noding a new set of segment strings split |
39 | | * at the nodes may be returned. |
40 | | * |
41 | | * Last port: noding/Noder.java rev. 1.8 (JTS-1.7) |
42 | | * |
43 | | * TODO: this was really an interface, we should avoid making it a Base class |
44 | | * |
45 | | */ |
46 | | class GEOS_DLL Noder { |
47 | | public: |
48 | | /** \brief |
49 | | * Computes the noding for a collection of [SegmentStrings](@ref SegmentString). |
50 | | * |
51 | | * Some Noders may add all these nodes to the input SegmentStrings; |
52 | | * others may only add some or none at all. |
53 | | * |
54 | | * @param segStrings a collection of {@link SegmentString}s to node |
55 | | * The caller remains responsible for releasing the memory |
56 | | * associated with the container and its elements. |
57 | | */ |
58 | | virtual void computeNodes(std::vector<SegmentString*>* segStrings) = 0; |
59 | | |
60 | | /** \brief |
61 | | * Returns a collection of fully noded [SegmentStrings](@ref SegmentString). |
62 | | * The SegmentStrings have the same context as their parent. |
63 | | * |
64 | | * @return a newly allocated std::vector of newly allocated |
65 | | * SegmentStrings (copies of input, if needs be). |
66 | | * Caller is responsible to delete container and elements. |
67 | | */ |
68 | | virtual std::vector<SegmentString*>* getNodedSubstrings() const = 0; |
69 | | |
70 | | virtual |
71 | 601k | ~Noder() {} |
72 | | |
73 | | protected: |
74 | 601k | Noder() {} |
75 | | }; |
76 | | |
77 | | } // namespace geos.noding |
78 | | } // namespace geos |
79 | | |