GEOS: OffsetCurveSetBuilder.h Source File

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OffsetCurveSetBuilder.h
1 /**********************************************************************
2 *
3 * GEOS - Geometry Engine Open Source
4 * http://geos.osgeo.org
5 *
6 * Copyright (C) 2011 Sandro Santilli <strk@keybit.net>
7 * Copyright (C) 2006 Refractions Research 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: operation/buffer/OffsetCurveSetBuilder.java r378 (JTS-1.12)
17 *
18 **********************************************************************/
19
20 #ifndef GEOS_OP_BUFFER_OFFSETCURVESETBUILDER_H
21 #define GEOS_OP_BUFFER_OFFSETCURVESETBUILDER_H
22
23 #include <geos/export.h>
24
25 #include <vector>
26
27 #ifdef _MSC_VER
28 #pragma warning(push)
29 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
30 #endif
31
32 // Forward declarations
33 namespace geos {
34 namespace geom {
35 class Geometry;
36 class CoordinateSequence;
37 class GeometryCollection;
38 class Point;
39 class LineString;
40 class LinearRing;
41 class Polygon;
42 }
43 namespace geomgraph {
44 class Label;
45 }
46 namespace noding {
47 class SegmentString;
48 }
49 namespace operation {
50 namespace buffer {
51 class OffsetCurveBuilder;
52 }
53 }
54 }
55
56 namespace geos {
57 namespace operation { // geos.operation
58 namespace buffer { // geos.operation.buffer
59
70 class GEOS_DLL OffsetCurveSetBuilder {
71
72 private:
73
74 // To keep track of newly-created Labels.
75 // Labels will be relesed by object dtor
76 std::vector<geomgraph::Label*> newLabels;
77
78 const geom::Geometry& inputGeom;
79
80 double distance;
81
82 OffsetCurveBuilder& curveBuilder;
83
87 std::vector<noding::SegmentString*> curveList;
88
101 void addCurve(geom::CoordinateSequence *coord, int leftLoc,
102 int rightLoc);
103
104 void add(const geom::Geometry& g);
105
106 void addCollection(const geom::GeometryCollection *gc);
107
111 void addPoint(const geom::Point *p);
112
113 void addLineString(const geom::LineString *line);
114
115 void addPolygon(const geom::Polygon *p);
116
135 void addPolygonRing(const geom::CoordinateSequence *coord,
136 double offsetDistance, int side, int cwLeftLoc,
137 int cwRightLoc);
138
148 bool isErodedCompletely(const geom::LinearRing* ringCoord,
149 double bufferDistance);
150
169 bool isTriangleErodedCompletely(const geom::CoordinateSequence *triCoords,
170 double bufferDistance);
171
172 // Declare type as noncopyable
173 OffsetCurveSetBuilder(const OffsetCurveSetBuilder& other);
174 OffsetCurveSetBuilder& operator=(const OffsetCurveSetBuilder& rhs);
175
176 public:
177
179 OffsetCurveSetBuilder(const geom::Geometry& newInputGeom,
180 double newDistance, OffsetCurveBuilder& newCurveBuilder);
181
183 ~OffsetCurveSetBuilder();
184
194 std::vector<noding::SegmentString*>& getCurves();
195
197 //
201 void addCurves(const std::vector<geom::CoordinateSequence*>& lineList,
202 int leftLoc, int rightLoc);
203
204 };
205
206 } // namespace geos::operation::buffer
207 } // namespace geos::operation
208 } // namespace geos
209
210 #ifdef _MSC_VER
211 #pragma warning(pop)
212 #endif
213
214 #endif // ndef GEOS_OP_BUFFER_OFFSETCURVESETBUILDER_H
215
geos::operation::buffer::OffsetCurveSetBuilder
Creates all the raw offset curves for a buffer of a Geometry.
Definition: OffsetCurveSetBuilder.h:70
geos::geom::Geometry
Basic implementation of Geometry, constructed and destructed by GeometryFactory.
Definition: Geometry.h:167
geos::geom::LineString
Definition: LineString.h:70
geos::geom::Polygon
Represents a linear polygon, which may include holes.
Definition: Polygon.h:66
geos::operation::buffer::OffsetCurveBuilder
Computes the raw offset curve for a single Geometry component (ring, line or point).
Definition: OffsetCurveBuilder.h:62
geos::geom::GeometryCollection
Represents a collection of heterogeneous Geometry objects.
Definition: GeometryCollection.h:56
geos
Basic namespace for all GEOS functionalities.
Definition: IndexedNestedRingTester.h:25
geos::geom::LinearRing
Models an OGC SFS LinearRing.
Definition: LinearRing.h:57
geos::geom::CoordinateSequence
The internal representation of a list of coordinates inside a Geometry.
Definition: CoordinateSequence.h:59
geos::geom::Point
Definition: Point.h:67