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OffsetCurveSetBuilder.h
1 /**********************************************************************
2 * $Id: OffsetCurveSetBuilder.h 3306 2011-04-27 14:13:45Z strk $
3 *
4 * GEOS - Geometry Engine Open Source
5 * http://geos.refractions.net
6 *
7 * Copyright (C) 2011 Sandro Santilli <strk@keybit.net>
8 * Copyright (C) 2006 Refractions Research 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: operation/buffer/OffsetCurveSetBuilder.java r378 (JTS-1.12)
18 *
19 **********************************************************************/
20
21 #ifndef GEOS_OP_BUFFER_OFFSETCURVESETBUILDER_H
22 #define GEOS_OP_BUFFER_OFFSETCURVESETBUILDER_H
23
24 #include <geos/export.h>
25
26 #include <vector>
27
28 #ifdef _MSC_VER
29 #pragma warning(push)
30 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
31 #endif
32
33 // Forward declarations
34 namespace geos {
35 namespace geom {
36 class Geometry;
37 class CoordinateSequence;
38 class GeometryCollection;
39 class Point;
40 class LineString;
41 class LinearRing;
42 class Polygon;
43 }
44 namespace geomgraph {
45 class Label;
46 }
47 namespace noding {
48 class SegmentString;
49 }
50 namespace operation {
51 namespace buffer {
52 class OffsetCurveBuilder;
53 }
54 }
55 }
56
57 namespace geos {
58 namespace operation { // geos.operation
59 namespace buffer { // geos.operation.buffer
60
71 class GEOS_DLL OffsetCurveSetBuilder {
72
73 private:
74
75 // To keep track of newly-created Labels.
76 // Labels will be relesed by object dtor
77 std::vector<geomgraph::Label*> newLabels;
78
79 const geom::Geometry& inputGeom;
80
81 double distance;
82
83 OffsetCurveBuilder& curveBuilder;
84
88 std::vector<noding::SegmentString*> curveList;
89
102 void addCurve(geom::CoordinateSequence *coord, int leftLoc,
103 int rightLoc);
104
105 void add(const geom::Geometry& g);
106
107 void addCollection(const geom::GeometryCollection *gc);
108
112 void addPoint(const geom::Point *p);
113
114 void addLineString(const geom::LineString *line);
115
116 void addPolygon(const geom::Polygon *p);
117
136 void addPolygonRing(const geom::CoordinateSequence *coord,
137 double offsetDistance, int side, int cwLeftLoc,
138 int cwRightLoc);
139
149 bool isErodedCompletely(const geom::LinearRing* ringCoord,
150 double bufferDistance);
151
170 bool isTriangleErodedCompletely(const geom::CoordinateSequence *triCoords,
171 double bufferDistance);
172
173 // Declare type as noncopyable
174 OffsetCurveSetBuilder(const OffsetCurveSetBuilder& other);
175 OffsetCurveSetBuilder& operator=(const OffsetCurveSetBuilder& rhs);
176
177 public:
178
180 OffsetCurveSetBuilder(const geom::Geometry& newInputGeom,
181 double newDistance, OffsetCurveBuilder& newCurveBuilder);
182
184 ~OffsetCurveSetBuilder();
185
195 std::vector<noding::SegmentString*>& getCurves();
196
198 //
202 void addCurves(const std::vector<geom::CoordinateSequence*>& lineList,
203 int leftLoc, int rightLoc);
204
205 };
206
207 } // namespace geos::operation::buffer
208 } // namespace geos::operation
209 } // namespace geos
210
211 #ifdef _MSC_VER
212 #pragma warning(pop)
213 #endif
214
215 #endif // ndef GEOS_OP_BUFFER_OFFSETCURVESETBUILDER_H
216
217 /**********************************************************************
218 * $Log$
219 * Revision 1.2 2006/05/04 10:15:20 strk
220 * Doxygen comments
221 *
222 * Revision 1.1 2006/03/14 00:19:40 strk
223 * opBuffer.h split, streamlined headers in some (not all) files in operation/buffer/
224 *
225 **********************************************************************/
226