GEOS: LineString.h Source File

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LineString.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) 2001-2002 Vivid Solutions Inc.
8 * Copyright (C) 2005 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: geom/LineString.java r320 (JTS-1.12)
18 *
19 **********************************************************************/
20
21 #ifndef GEOS_GEOS_LINESTRING_H
22 #define GEOS_GEOS_LINESTRING_H
23
24 #include <geos/export.h>
25 #include <geos/platform.h> // do we need this ?
26 #include <geos/geom/Geometry.h> // for inheritance
27 #include <geos/geom/Lineal.h> // for inheritance
28 #include <geos/geom/CoordinateSequence.h> // for proper use of auto_ptr<>
29 #include <geos/geom/Envelope.h> // for proper use of auto_ptr<>
30 #include <geos/geom/Dimension.h> // for Dimension::DimensionType
31
32 #include <string>
33 #include <vector>
34 #include <memory> // for auto_ptr
35
36 #include <geos/inline.h>
37
38 #ifdef _MSC_VER
39 #pragma warning(push)
40 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
41 #endif
42
43 namespace geos {
44 namespace geom {
45 class Coordinate;
46 class CoordinateArraySequence;
47 class CoordinateSequenceFilter;
48 }
49 }
50
51 namespace geos {
52 namespace geom { // geos::geom
53
70 class GEOS_DLL LineString: public virtual Geometry, public Lineal {
71
72 public:
73
74 friend class GeometryFactory;
75
77 typedef std::vector<const LineString *> ConstVect;
78
79 virtual ~LineString();
80
87 virtual Geometry *clone() const;
88
89 virtual CoordinateSequence* getCoordinates() const;
90
92 const CoordinateSequence* getCoordinatesRO() const;
93
94 virtual const Coordinate& getCoordinateN(int n) const;
95
97 virtual Dimension::DimensionType getDimension() const;
98
104 virtual int getBoundaryDimension() const;
105
107 virtual int getCoordinateDimension() const;
108
114 virtual Geometry* getBoundary() const;
115
116 virtual bool isEmpty() const;
117
118 virtual std::size_t getNumPoints() const;
119
120 virtual Point* getPointN(std::size_t n) const;
121
126 virtual Point* getStartPoint() const;
127
132 virtual Point* getEndPoint() const;
133
134 virtual bool isClosed() const;
135
136 virtual bool isRing() const;
137
138 virtual std::string getGeometryType() const;
139
140 virtual GeometryTypeId getGeometryTypeId() const;
141
142 virtual bool isCoordinate(Coordinate& pt) const;
143
144 virtual bool equalsExact(const Geometry *other, double tolerance=0)
145 const;
146
147 virtual void apply_rw(const CoordinateFilter *filter);
148
149 virtual void apply_ro(CoordinateFilter *filter) const;
150
151 virtual void apply_rw(GeometryFilter *filter);
152
153 virtual void apply_ro(GeometryFilter *filter) const;
154
155 virtual void apply_rw(GeometryComponentFilter *filter);
156
157 virtual void apply_ro(GeometryComponentFilter *filter) const;
158
159 void apply_rw(CoordinateSequenceFilter& filter);
160
161 void apply_ro(CoordinateSequenceFilter& filter) const;
162
170 virtual void normalize();
171
172 //was protected
173 virtual int compareToSameClass(const Geometry *ls) const;
174
175 virtual const Coordinate* getCoordinate() const;
176
177 virtual double getLength() const;
178
185 Geometry* reverse() const;
186
187 protected:
188
189 LineString(const LineString &ls);
190
194 LineString(CoordinateSequence *pts, const GeometryFactory *newFactory);
195
197 LineString(CoordinateSequence::AutoPtr pts,
198 const GeometryFactory *newFactory);
199
200 Envelope::AutoPtr computeEnvelopeInternal() const;
201
202 CoordinateSequence::AutoPtr points;
203
204 private:
205
206 void validateConstruction();
207
208 };
209
210 struct GEOS_DLL LineStringLT {
211 bool operator()(const LineString *ls1, const LineString *ls2) const {
212 return ls1->compareTo(ls2)<0;
213 }
214 };
215
216
217 inline Geometry*
218 LineString::clone() const {
219 return new LineString(*this);
220 }
221
222 } // namespace geos::geom
223 } // namespace geos
224
225 #ifdef _MSC_VER
226 #pragma warning(pop)
227 #endif
228
229 #endif // ndef GEOS_GEOS_LINESTRING_H
geos::geom::GeometryFilter
Geometry classes support the concept of applying a Geometry filter to the Geometry.
Definition: GeometryFilter.h:48
geos::geom::Coordinate
Coordinate is the lightweight class used to store coordinates.
Definition: Coordinate.h:60
geos::geom::CoordinateSequenceFilter
Definition: CoordinateSequenceFilter.h:58
geos::geom::GeometryTypeId
GeometryTypeId
Geometry types.
Definition: Geometry.h:65
geos::geom::Geometry
Basic implementation of Geometry, constructed and destructed by GeometryFactory.
Definition: Geometry.h:167
geos::geom::Lineal
Definition: Lineal.h:32
geos::geom::CoordinateFilter
Definition: CoordinateFilter.h:43
geos::geom::LineString
Definition: LineString.h:70
geos::geom::LineString::ConstVect
std::vector< const LineString * > ConstVect
A vector of const LineString pointers.
Definition: LineString.h:77
geos::geom::GeometryFactory
Supplies a set of utility methods for building Geometry objects from CoordinateSequence or other Geom...
Definition: GeometryFactory.h:67
geos
Basic namespace for all GEOS functionalities.
Definition: IndexedNestedRingTester.h:25
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
geos::geom::Dimension::DimensionType
DimensionType
Definition: Dimension.h:31
geos::geom::GeometryComponentFilter
Definition: GeometryComponentFilter.h:43
geos::geom::LineString::clone
virtual Geometry * clone() const
Definition: LineString.h:218