svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.geometry / org.gvsig.fmap.geometry.jts / src / main / java / org / gvsig / fmap / geom / jts / primitive / point / Point2D.java @ 42267
History | View | Annotate | Download (5.34 KB)
1 |
/* gvSIG. Desktop Geographic Information System.
|
---|---|
2 |
*
|
3 |
* Copyright ? 2007-2015 gvSIG Association
|
4 |
*
|
5 |
* This program is free software; you can redistribute it and/or
|
6 |
* modify it under the terms of the GNU General Public License
|
7 |
* as published by the Free Software Foundation; either version 2
|
8 |
* of the License, or (at your option) any later version.
|
9 |
*
|
10 |
* This program is distributed in the hope that it will be useful,
|
11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
13 |
* GNU General Public License for more details.
|
14 |
*
|
15 |
* You should have received a copy of the GNU General Public License
|
16 |
* along with this program; if not, write to the Free Software
|
17 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
18 |
* MA 02110-1301, USA.
|
19 |
*
|
20 |
* For any additional information, do not hesitate to contact us
|
21 |
* at info AT gvsig.com, or visit our website www.gvsig.com.
|
22 |
*/
|
23 |
package org.gvsig.fmap.geom.jts.primitive.point; |
24 |
|
25 |
import java.awt.geom.AffineTransform; |
26 |
import java.awt.geom.PathIterator; |
27 |
|
28 |
import com.vividsolutions.jts.geom.Coordinate; |
29 |
|
30 |
import org.gvsig.fmap.geom.Geometry; |
31 |
import org.gvsig.fmap.geom.GeometryLocator; |
32 |
import org.gvsig.fmap.geom.jts.gputils.DefaultGeneralPathX; |
33 |
import org.gvsig.fmap.geom.jts.gputils.GeneralPathXIterator; |
34 |
import org.gvsig.fmap.geom.primitive.GeneralPathX; |
35 |
import org.gvsig.fmap.geom.type.GeometryType; |
36 |
|
37 |
/**
|
38 |
* @author fdiaz
|
39 |
*
|
40 |
*/
|
41 |
public class Point2D extends AbstractPoint { |
42 |
|
43 |
/**
|
44 |
*
|
45 |
*/
|
46 |
private static final long serialVersionUID = -5486980182751169991L; |
47 |
|
48 |
/**
|
49 |
*
|
50 |
*/
|
51 |
public Point2D(Coordinate coordinates) { |
52 |
super(Geometry.SUBTYPES.GEOM2D, coordinates);
|
53 |
|
54 |
} |
55 |
|
56 |
/**
|
57 |
*
|
58 |
*/
|
59 |
public Point2D() { |
60 |
this(new Coordinate(0, 0)); |
61 |
} |
62 |
|
63 |
/**
|
64 |
*
|
65 |
*/
|
66 |
public Point2D(double x, double y) { |
67 |
this(new Coordinate(x, y)); |
68 |
} |
69 |
|
70 |
/*
|
71 |
* (non-Javadoc)
|
72 |
*
|
73 |
* @see org.gvsig.fmap.geom.Geometry#cloneGeometry()
|
74 |
*/
|
75 |
public Geometry cloneGeometry() {
|
76 |
return new Point2D((Coordinate) this.coordinate.clone()); |
77 |
} |
78 |
|
79 |
/*
|
80 |
* (non-Javadoc)
|
81 |
*
|
82 |
* @see org.gvsig.fmap.geom.Geometry#getDimension()
|
83 |
*/
|
84 |
public int getDimension() { |
85 |
return 2; |
86 |
} |
87 |
|
88 |
/*
|
89 |
* (non-Javadoc)
|
90 |
*
|
91 |
* @see org.gvsig.fmap.geom.Geometry#getGeometryType()
|
92 |
*/
|
93 |
public GeometryType getGeometryType() {
|
94 |
try {
|
95 |
return GeometryLocator.getGeometryManager().getGeometryType(Geometry.TYPES.POINT, Geometry.SUBTYPES.GEOM2D);
|
96 |
} catch (Exception e) { |
97 |
return null; |
98 |
} |
99 |
} |
100 |
|
101 |
/*
|
102 |
* (non-Javadoc)
|
103 |
*
|
104 |
* @see org.gvsig.fmap.geom.jts.GeometryJTS#is3D()
|
105 |
*/
|
106 |
public boolean is3D() { |
107 |
return false; |
108 |
} |
109 |
|
110 |
/* (non-Javadoc)
|
111 |
* @see org.gvsig.fmap.geom.jts.primitive.point.PointJTS#setJTSCoordinate(com.vividsolutions.jts.geom.Coordinate)
|
112 |
*/
|
113 |
public void setJTSCoordinate(Coordinate coordinate) { |
114 |
this.coordinate = coordinate;
|
115 |
} |
116 |
|
117 |
/*
|
118 |
* (non-Javadoc)
|
119 |
*
|
120 |
* @see org.gvsig.fmap.geom.Geometry#getGeneralPath()
|
121 |
*/
|
122 |
public GeneralPathX getGeneralPath() {
|
123 |
return new DefaultGeneralPathX(new PointIterator(null),false,0); |
124 |
} |
125 |
|
126 |
/*
|
127 |
* (non-Javadoc)
|
128 |
*
|
129 |
* @see
|
130 |
* org.gvsig.fmap.geom.Geometry#getPathIterator(java.awt.geom.AffineTransform
|
131 |
* )
|
132 |
*/
|
133 |
public PathIterator getPathIterator(AffineTransform at) { |
134 |
PointIterator pi = new PointIterator(at);
|
135 |
return pi;
|
136 |
} |
137 |
|
138 |
|
139 |
public class PointIterator extends GeneralPathXIterator { |
140 |
/** Transform applied on the coordinates during iteration */
|
141 |
private AffineTransform at; |
142 |
|
143 |
/** True when the point has been read once */
|
144 |
private boolean done; |
145 |
|
146 |
/**
|
147 |
* Creates a new PointIterator object.
|
148 |
*
|
149 |
* @param p The polygon
|
150 |
* @param at The affine transform applied to coordinates during iteration
|
151 |
*/
|
152 |
public PointIterator(AffineTransform at) { |
153 |
super(new GeneralPathX()); |
154 |
if (at == null) { |
155 |
at = new AffineTransform(); |
156 |
} |
157 |
|
158 |
this.at = at;
|
159 |
done = false;
|
160 |
} |
161 |
|
162 |
/**
|
163 |
* Return the winding rule for determining the interior of the path.
|
164 |
*
|
165 |
* @return <code>WIND_EVEN_ODD</code> by default.
|
166 |
*/
|
167 |
public int getWindingRule() { |
168 |
return PathIterator.WIND_EVEN_ODD; |
169 |
} |
170 |
|
171 |
/**
|
172 |
* @see java.awt.geom.PathIterator#next()
|
173 |
*/
|
174 |
public void next() { |
175 |
done = true;
|
176 |
} |
177 |
|
178 |
/**
|
179 |
* @see java.awt.geom.PathIterator#isDone()
|
180 |
*/
|
181 |
public boolean isDone() { |
182 |
return done;
|
183 |
} |
184 |
|
185 |
/**
|
186 |
* @see java.awt.geom.PathIterator#currentSegment(double[])
|
187 |
*/
|
188 |
public int currentSegment(double[] coords) { |
189 |
coords[0] = getX();
|
190 |
coords[1] = getY();
|
191 |
at.transform(coords, 0, coords, 0, 1); |
192 |
|
193 |
return PathIterator.SEG_MOVETO; |
194 |
} |
195 |
|
196 |
/* (non-Javadoc)
|
197 |
* @see java.awt.geom.PathIterator#currentSegment(float[])
|
198 |
*/
|
199 |
public int currentSegment(float[] coords) { |
200 |
coords[0] = (float) getX(); |
201 |
coords[1] = (float) getY(); |
202 |
at.transform(coords, 0, coords, 0, 1); |
203 |
|
204 |
return PathIterator.SEG_MOVETO; |
205 |
} |
206 |
} |
207 |
|
208 |
} |