svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.file / org.gvsig.fmap.dal.file.shp / src / main / java / org / gvsig / fmap / dal / store / shp / utils / SHPMultiPoint.java @ 40559
History | View | Annotate | Download (7.29 KB)
1 | 40559 | jjdelcerro | /**
|
---|---|---|---|
2 | * gvSIG. Desktop Geographic Information System.
|
||
3 | 40435 | jjdelcerro | *
|
4 | 40559 | jjdelcerro | * Copyright (C) 2007-2013 gvSIG Association.
|
5 | 40435 | jjdelcerro | *
|
6 | * This program is free software; you can redistribute it and/or
|
||
7 | * modify it under the terms of the GNU General Public License
|
||
8 | 40559 | jjdelcerro | * as published by the Free Software Foundation; either version 3
|
9 | 40435 | jjdelcerro | * of the License, or (at your option) any later version.
|
10 | *
|
||
11 | * This program is distributed in the hope that it will be useful,
|
||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
14 | * GNU General Public License for more details.
|
||
15 | *
|
||
16 | * You should have received a copy of the GNU General Public License
|
||
17 | * along with this program; if not, write to the Free Software
|
||
18 | 40559 | jjdelcerro | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
19 | * MA 02110-1301, USA.
|
||
20 | 40435 | jjdelcerro | *
|
21 | 40559 | jjdelcerro | * For any additional information, do not hesitate to contact us
|
22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
|
||
23 | 40435 | jjdelcerro | */
|
24 | package org.gvsig.fmap.dal.store.shp.utils; |
||
25 | |||
26 | import java.awt.geom.PathIterator; |
||
27 | import java.awt.geom.Point2D; |
||
28 | import java.awt.geom.Rectangle2D; |
||
29 | import java.nio.ByteBuffer; |
||
30 | import java.nio.MappedByteBuffer; |
||
31 | import java.util.ArrayList; |
||
32 | |||
33 | import org.gvsig.fmap.geom.Geometry; |
||
34 | import org.gvsig.fmap.geom.GeometryLocator; |
||
35 | import org.gvsig.fmap.geom.GeometryManager; |
||
36 | import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
||
37 | import org.gvsig.fmap.geom.Geometry.TYPES; |
||
38 | import org.gvsig.fmap.geom.aggregate.MultiPoint; |
||
39 | import org.gvsig.fmap.geom.exception.CreateGeometryException; |
||
40 | import org.gvsig.fmap.geom.primitive.Envelope; |
||
41 | import org.slf4j.Logger; |
||
42 | import org.slf4j.LoggerFactory; |
||
43 | |||
44 | /**
|
||
45 | * Elemento shape de tipo multipunto.
|
||
46 | *
|
||
47 | * @author Vicente Caballero Navarro
|
||
48 | */
|
||
49 | public class SHPMultiPoint implements SHPShape { |
||
50 | private static final GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
||
51 | private static final Logger logger = LoggerFactory.getLogger(SHPMultiPoint.class); |
||
52 | private int m_type; |
||
53 | private int numpoints; |
||
54 | private Point2D[] points; |
||
55 | private double[] zs; |
||
56 | |||
57 | /**
|
||
58 | * Crea un nuevo SHPMultiPoint.
|
||
59 | */
|
||
60 | public SHPMultiPoint() {
|
||
61 | m_type = SHP.MULTIPOINT2D; |
||
62 | } |
||
63 | |||
64 | /**
|
||
65 | * Crea un nuevo SHPMultiPoint.
|
||
66 | *
|
||
67 | * @param type Tipo de multipunto.
|
||
68 | *
|
||
69 | * @throws ShapefileException
|
||
70 | */
|
||
71 | public SHPMultiPoint(int type) { |
||
72 | if ((type != SHP.MULTIPOINT2D) &&
|
||
73 | (type != SHP.MULTIPOINTM) && |
||
74 | (type != SHP.MULTIPOINT3D)) { |
||
75 | // throw new ShapefileException("No es de tipo 8, 18, o 28");
|
||
76 | } |
||
77 | |||
78 | m_type = type; |
||
79 | } |
||
80 | |||
81 | /**
|
||
82 | * Devuelve el tipo de multipoint en concreto.
|
||
83 | *
|
||
84 | * @return Tipo de multipoint.
|
||
85 | */
|
||
86 | public int getShapeType() { |
||
87 | return m_type;
|
||
88 | } |
||
89 | |||
90 | /**
|
||
91 | * @see com.iver.cit.gvsig.fmap.shp.SHPShape#read(MappedByteBuffer, int)
|
||
92 | */
|
||
93 | public Geometry read(MappedByteBuffer buffer, int type) { |
||
94 | double minX = buffer.getDouble();
|
||
95 | double minY = buffer.getDouble();
|
||
96 | double maxX = buffer.getDouble();
|
||
97 | double maxY = buffer.getDouble();
|
||
98 | Rectangle2D rec = new Rectangle2D.Double(minX, minY, maxX - minX, |
||
99 | maxY - maxY); |
||
100 | int numpoints = buffer.getInt();
|
||
101 | org.gvsig.fmap.geom.primitive.Point[] p = new org.gvsig.fmap.geom.primitive.Point[numpoints]; |
||
102 | |||
103 | for (int t = 0; t < numpoints; t++) { |
||
104 | double x = buffer.getDouble();
|
||
105 | double y = buffer.getDouble();
|
||
106 | try {
|
||
107 | p[t] = geomManager.createPoint(x, y, SUBTYPES.GEOM2D); |
||
108 | } catch (CreateGeometryException e) {
|
||
109 | logger.error("Error creating a point", e);
|
||
110 | } |
||
111 | } |
||
112 | |||
113 | /* if (m_type == FConstant.SHAPE_TYPE_MULTIPOINTZ) {
|
||
114 | buffer.position(buffer.position() + (2 * 8));
|
||
115 | for (int t = 0; t < numpoints; t++) {
|
||
116 | p[t].z = buffer.getDouble(); //z
|
||
117 | }
|
||
118 | }
|
||
119 | */
|
||
120 | MultiPoint multipoint = null;
|
||
121 | try {
|
||
122 | multipoint = (MultiPoint)geomManager.create(TYPES.MULTIPOINT, SUBTYPES.GEOM2D); |
||
123 | for (int i=0 ; i<p.length ; i++){ |
||
124 | multipoint.addPoint(p[i]); |
||
125 | } |
||
126 | } catch (CreateGeometryException e) {
|
||
127 | logger.error("Error creating the multipoint", e);
|
||
128 | } |
||
129 | return multipoint;
|
||
130 | } |
||
131 | |||
132 | /**
|
||
133 | * @see com.iver.cit.gvsig.fmap.shp.SHPShape#write(ByteBuffer, IGeometry)
|
||
134 | */
|
||
135 | public void write(ByteBuffer buffer, Geometry geometry) { |
||
136 | // FMultiPoint2D mp = (FMultiPoint2D) geometry.getShape();
|
||
137 | // int p = buffer.position();
|
||
138 | |||
139 | Envelope env = geometry.getEnvelope(); |
||
140 | |||
141 | buffer.putDouble(env.getMinimum(0));
|
||
142 | buffer.putDouble(env.getMinimum(1));
|
||
143 | buffer.putDouble(env.getMaximum(0));
|
||
144 | buffer.putDouble(env.getMaximum(1));
|
||
145 | ///obtainsPoints(geometry.getGeneralPathXIterator());
|
||
146 | buffer.putInt(numpoints); |
||
147 | |||
148 | for (int t = 0, tt = numpoints; t < tt; t++) { |
||
149 | Point2D point = points[t];
|
||
150 | buffer.putDouble(point.getX()); |
||
151 | buffer.putDouble(point.getY()); |
||
152 | } |
||
153 | |||
154 | if (m_type == SHP.MULTIPOINT3D) {
|
||
155 | double[] zExtreame = SHP.getZMinMax(zs); |
||
156 | if (Double.isNaN(zExtreame[0])) { |
||
157 | buffer.putDouble(0.0);
|
||
158 | buffer.putDouble(0.0);
|
||
159 | } else {
|
||
160 | buffer.putDouble(zExtreame[0]);
|
||
161 | buffer.putDouble(zExtreame[1]);
|
||
162 | } |
||
163 | for (int t = 0; t < numpoints; t++) { |
||
164 | double z = zs[t];
|
||
165 | if (Double.isNaN(z)) { |
||
166 | buffer.putDouble(0.0);
|
||
167 | } else {
|
||
168 | buffer.putDouble(z); |
||
169 | } |
||
170 | } |
||
171 | } |
||
172 | if ((m_type == SHP.MULTIPOINTM) ||
|
||
173 | (m_type == SHP.MULTIPOINT3D)) { |
||
174 | buffer.putDouble(-10E40);
|
||
175 | buffer.putDouble(-10E40);
|
||
176 | for (int t = 0; t < numpoints; t++) { |
||
177 | buffer.putDouble(-10E40);
|
||
178 | } |
||
179 | } |
||
180 | |||
181 | } |
||
182 | |||
183 | /**
|
||
184 | * @see com.iver.cit.gvsig.fmap.shp.SHPShape#getLength(com.iver.cit.gvsig.core.BasicShape.FGeometry)
|
||
185 | */
|
||
186 | public int getLength(Geometry fgeometry) { |
||
187 | //FMultiPoint2D mp = (FMultiPoint2D) fgeometry.getShape();
|
||
188 | ///obtainsPoints(fgeometry.getGeneralPathXIterator());
|
||
189 | |||
190 | int length;
|
||
191 | |||
192 | if (m_type == SHP.MULTIPOINT2D) {
|
||
193 | // two doubles per coord (16 * numgeoms) + 40 for header
|
||
194 | length = (numpoints * 16) + 40; |
||
195 | } else if (m_type == SHP.MULTIPOINTM) { |
||
196 | // add the additional MMin, MMax for 16, then 8 per measure
|
||
197 | length = (numpoints * 16) + 40 + 16 + (8 * numpoints); |
||
198 | } else if (m_type == SHP.MULTIPOINT3D) { |
||
199 | // add the additional ZMin,ZMax, plus 8 per Z
|
||
200 | length = (numpoints * 16) + 40 + 16 + (8 * numpoints); |
||
201 | } else {
|
||
202 | throw new IllegalStateException("Expected ShapeType of Arc, got " + |
||
203 | m_type); |
||
204 | } |
||
205 | |||
206 | return length;
|
||
207 | } |
||
208 | |||
209 | /**
|
||
210 | * @see com.iver.cit.gvsig.fmap.drivers.shp.write.SHPShape#obtainsPoints(com.iver.cit.gvsig.fmap.core.GeneralPathXIterator)
|
||
211 | */
|
||
212 | public void obtainsPoints(Geometry g) { |
||
213 | if (SHP.MULTIPOINT3D == m_type){
|
||
214 | MultiPoint multipoint = (MultiPoint)g; |
||
215 | zs = new double[multipoint.getPrimitivesNumber()]; |
||
216 | for (int i=0 ; i<zs.length ; i++){ |
||
217 | zs[i] = multipoint.getPointAt(i).getCoordinateAt(2);
|
||
218 | } |
||
219 | } |
||
220 | PathIterator theIterator = g.getPathIterator(null); //polyLine.getPathIterator(null, flatness); |
||
221 | double[] theData = new double[6]; |
||
222 | ArrayList ps=new ArrayList(); |
||
223 | while (!theIterator.isDone()) {
|
||
224 | //while not done
|
||
225 | // int theType = theIterator.currentSegment(theData);
|
||
226 | theIterator.currentSegment(theData); |
||
227 | |||
228 | ps.add(new Point2D.Double(theData[0], theData[1])); |
||
229 | theIterator.next(); |
||
230 | } //end while loop
|
||
231 | points=(Point2D[])ps.toArray(new Point2D.Double[0]); |
||
232 | numpoints=points.length; |
||
233 | } |
||
234 | // public void setFlatness(double flatness) {
|
||
235 | // //this.flatness=flatness;
|
||
236 | // }
|
||
237 | } |