root / tags / v1_1_Build_1010 / libraries / libCq CMS for java.old / src / org / cresques / io / GmlFile.java @ 12804
History | View | Annotate | Download (10.6 KB)
1 |
/*
|
---|---|
2 |
* Cresques Mapping Suite. Graphic Library for constructing mapping applications.
|
3 |
*
|
4 |
* Copyright (C) 2004-5.
|
5 |
*
|
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 |
* as published by the Free Software Foundation; either version 2
|
9 |
* 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 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
19 |
*
|
20 |
* For more information, contact:
|
21 |
*
|
22 |
* cresques@gmail.com
|
23 |
*/
|
24 |
package org.cresques.io; |
25 |
|
26 |
import org.cresques.cts.ICoordTrans; |
27 |
import org.cresques.cts.IProjection; |
28 |
|
29 |
import org.cresques.px.IObjList; |
30 |
import org.cresques.px.gml.Feature; |
31 |
import org.cresques.px.gml.FeatureCollection; |
32 |
import org.cresques.px.gml.Geometry; |
33 |
import org.cresques.px.gml.LineString; |
34 |
import org.cresques.px.gml.MultiGeometry; |
35 |
import org.cresques.px.gml.MultiPolygon; |
36 |
import org.cresques.px.gml.Point; |
37 |
import org.cresques.px.gml.Polygon; |
38 |
|
39 |
import java.io.BufferedReader; |
40 |
import java.io.FileNotFoundException; |
41 |
import java.io.FileReader; |
42 |
import java.io.IOException; |
43 |
import java.io.InputStream; |
44 |
import java.io.InputStreamReader; |
45 |
import java.io.Reader; |
46 |
|
47 |
import java.util.Hashtable; |
48 |
|
49 |
|
50 |
/**
|
51 |
* Cargador de ficheros .gml de JUMP de vivid solutions.
|
52 |
* Actualmente lee un subconjunto de datos. Datos de prueba generados por JUMP.
|
53 |
* @author "Luis W. Sevilla" <sevilla_lui@gva.es>
|
54 |
*/
|
55 |
public class GmlFile extends GeoFile { |
56 |
final static int NOWHERE = -1; |
57 |
final static int INCOORDINATES = 0; |
58 |
final static int INPROPERTY = 1; |
59 |
final static String LT = "<"; |
60 |
final static String GT = ">"; |
61 |
int where = NOWHERE;
|
62 |
Hashtable tipos = new Hashtable(); |
63 |
FeatureCollection collection = null;
|
64 |
Feature activeFeature = null;
|
65 |
Geometry activeGeometry = null;
|
66 |
Geometry activeMember = null;
|
67 |
String buf = null; |
68 |
String propName = null; |
69 |
long lineNr = 0; |
70 |
BufferedReader fi;
|
71 |
long l = 0; |
72 |
int count = 0; |
73 |
|
74 |
/**
|
75 |
* Constructor de la clase Gml
|
76 |
*
|
77 |
*/
|
78 |
public GmlFile(IProjection proj, String name) { |
79 |
super(proj, name);
|
80 |
} |
81 |
|
82 |
/**
|
83 |
* Carga un .gml
|
84 |
* @param name nombre del fichero
|
85 |
*/
|
86 |
public GeoFile load() {
|
87 |
System.out.println("Cargando " + name + " ..."); |
88 |
|
89 |
try {
|
90 |
if (FileFolder.isUrl(name)) {
|
91 |
ZipFileFolder zFolder = new ZipFileFolder(name);
|
92 |
InputStream is = zFolder.getInputStream(name);
|
93 |
|
94 |
return load(new InputStreamReader(is)); |
95 |
} else {
|
96 |
return load(new FileReader(name)); |
97 |
} |
98 |
} catch (FileNotFoundException e) { |
99 |
e.printStackTrace(); |
100 |
} catch (IOException ie) { |
101 |
System.err.println("ERROR." + l + "lineas leidas"); |
102 |
ie.printStackTrace(); |
103 |
} |
104 |
|
105 |
return this; |
106 |
} |
107 |
|
108 |
public GeoFile load(Reader fr) { |
109 |
try {
|
110 |
fi = new BufferedReader(fr); |
111 |
|
112 |
while ((buf = fi.readLine()) != null) { |
113 |
//System.out.println(buf);
|
114 |
l++; |
115 |
preParseLine(buf.trim()); |
116 |
} |
117 |
|
118 |
fi.close(); |
119 |
System.out.println("'" + name + "' cargado. (" + l + " l?neas)."); |
120 |
} catch (FileNotFoundException e) { |
121 |
e.printStackTrace(); |
122 |
} catch (IOException ie) { |
123 |
System.err.println("ERROR." + l + "lineas leidas"); |
124 |
ie.printStackTrace(); |
125 |
} |
126 |
|
127 |
this.lineNr = l;
|
128 |
extent.add(collection.getExtent()); |
129 |
|
130 |
return this; |
131 |
} |
132 |
|
133 |
/**
|
134 |
* Analiza una l?nea del fichero .gml
|
135 |
* @param l linea que analiza
|
136 |
*/
|
137 |
void preParseLine(String l) { |
138 |
String line1;
|
139 |
|
140 |
//System.err.println("pre0: '"+l+"'");
|
141 |
//if (count++>500) System.exit(1);
|
142 |
if (l.indexOf(LT) > 0) { |
143 |
line1 = l.substring(0, l.indexOf(LT)).trim();
|
144 |
l = l.substring(l.indexOf(LT)).trim(); |
145 |
|
146 |
//System.err.println("pre1: '"+line1+"', '"+l+"'");
|
147 |
preParseLine(line1); |
148 |
preParseLine(l); |
149 |
|
150 |
return;
|
151 |
} |
152 |
|
153 |
if ((l.indexOf(GT) >= 0) && (l.indexOf(GT) != (l.length() - 1))) { |
154 |
line1 = l.substring(0, l.indexOf(GT) + 1).trim(); |
155 |
l = l.substring(l.indexOf(GT) + 1).trim();
|
156 |
|
157 |
//System.err.println("pre2: '"+line1+"', '"+l+"'");
|
158 |
preParseLine(line1); |
159 |
preParseLine(l); |
160 |
|
161 |
return;
|
162 |
} |
163 |
|
164 |
parseToken(l); |
165 |
} |
166 |
|
167 |
/**
|
168 |
* Analiza un token
|
169 |
* @param l
|
170 |
*/
|
171 |
void parseToken(String l) { |
172 |
String token = null; |
173 |
|
174 |
//System.err.println(l);
|
175 |
if ((l.length() > 0) && (l.substring(0, 1).compareTo(LT) == 0)) { |
176 |
token = l.substring(1, l.indexOf(GT));
|
177 |
|
178 |
if (token.compareTo("gml:coordinates") == 0) { |
179 |
where = INCOORDINATES; |
180 |
} else if (token.compareTo("/gml:coordinates") == 0) { |
181 |
where = NOWHERE; |
182 |
} else if (token.compareTo("gml:LinearRing") == 0) { |
183 |
} else if (token.compareTo("/gml:LinearRing") == 0) { |
184 |
} else if (token.compareTo("gml:Polygon") == 0) { |
185 |
activeMember = new Polygon(); |
186 |
|
187 |
if (activeGeometry == null) { |
188 |
activeGeometry = activeMember; |
189 |
} |
190 |
} else if (token.compareTo("/gml:Polygon") == 0) { |
191 |
if (activeGeometry.getClass() == MultiPolygon.class) {
|
192 |
((MultiPolygon) activeGeometry).add(activeMember); |
193 |
} |
194 |
|
195 |
activeMember = null;
|
196 |
} else if (token.compareTo("gml:LineString") == 0) { |
197 |
activeMember = new LineString();
|
198 |
|
199 |
if (activeGeometry == null) { |
200 |
activeGeometry = activeMember; |
201 |
} |
202 |
} else if (token.compareTo("/gml:LineString") == 0) { |
203 |
if (activeGeometry.getClass() == MultiGeometry.class) {
|
204 |
((MultiGeometry) activeGeometry).add(activeMember); |
205 |
} |
206 |
|
207 |
activeMember = null;
|
208 |
} else if (token.compareTo("gml:outerBoundaryIs") == 0) { |
209 |
} else if (token.compareTo("/gml:outerBoundaryIs") == 0) { |
210 |
} else if (token.compareTo("featureCollection") == 0) { |
211 |
collection = new FeatureCollection(proj);
|
212 |
} else if (token.compareTo("/featureCollection") == 0) { |
213 |
} else if (token.compareTo("feature") == 0) { |
214 |
System.err.println("feature"); |
215 |
activeFeature = new Feature();
|
216 |
} else if (token.compareTo("/feature") == 0) { |
217 |
collection.add(activeFeature); |
218 |
activeFeature = null;
|
219 |
} else if (token.compareTo("geometry") == 0) { |
220 |
} else if (token.compareTo("/geometry") == 0) { |
221 |
activeFeature.setGeometry(activeGeometry); |
222 |
activeGeometry = null;
|
223 |
activeMember = null;
|
224 |
} else if (token.compareTo("gml:Point") == 0) { |
225 |
activeMember = new Point(); |
226 |
|
227 |
if (activeGeometry == null) { |
228 |
activeGeometry = activeMember; |
229 |
} |
230 |
} else if (token.compareTo("/gml:Point") == 0) { |
231 |
activeMember = null;
|
232 |
} else if (token.compareTo("gml:MultiPolygon") == 0) { |
233 |
activeGeometry = new MultiPolygon();
|
234 |
} else if (token.compareTo("/gml:MultiPolygon") == 0) { |
235 |
} else if (token.compareTo("gml:MultiPoint") == 0) { |
236 |
//activeGeometry = new MultiPoint();
|
237 |
} else if (token.compareTo("/gml:MultiPoint") == 0) { |
238 |
} else if (token.compareTo("gml:polygonMember") == 0) { |
239 |
} else if (token.compareTo("/gml:polygonMember") == 0) { |
240 |
} else if (token.compareTo("gml:innerBoundaryIs") == 0) { |
241 |
((Polygon) activeMember).setInnerBoundary();
|
242 |
} else if (token.compareTo("/gml:innerBoundaryIs") == 0) { |
243 |
} else if (token.startsWith("property")) { |
244 |
where = INPROPERTY; |
245 |
propName = l.substring(l.indexOf("\"") + 1); |
246 |
propName = propName.substring(0, propName.indexOf("\"")); |
247 |
} else if (token.startsWith("/property")) { |
248 |
where = NOWHERE; |
249 |
|
250 |
Integer tipo = new Integer(0); |
251 |
|
252 |
if (tipos.containsKey(token)) {
|
253 |
tipo = (Integer) tipos.get(token);
|
254 |
} |
255 |
|
256 |
tipos.put(token, new Integer(tipo.intValue() + 1)); |
257 |
} |
258 |
} else {
|
259 |
switch (where) {
|
260 |
case INPROPERTY:
|
261 |
activeFeature.setProp(propName, l); |
262 |
|
263 |
break;
|
264 |
|
265 |
case INCOORDINATES:
|
266 |
|
267 |
String[] txt = l.split(","); |
268 |
double[] pt = new double[3]; |
269 |
|
270 |
for (int i = 0; i < txt.length; i++) |
271 |
pt[i] = Double.parseDouble(txt[i]);
|
272 |
|
273 |
activeMember.add(proj.createPoint(pt[0], pt[1])); |
274 |
|
275 |
break;
|
276 |
} |
277 |
} |
278 |
} |
279 |
|
280 |
/**
|
281 |
* Obtiene la lista de features.
|
282 |
*/
|
283 |
public IObjList getObjects() {
|
284 |
return collection;
|
285 |
} |
286 |
|
287 |
/**
|
288 |
* Saca las estadisticas del fichero por stdout.
|
289 |
*/
|
290 |
public void pintaStats() { |
291 |
/* print "GML file '%s': %d lineas" % (self.name, self.lineNr)
|
292 |
print "GML Tokens:"
|
293 |
kk = self.tipos.keys()
|
294 |
kk.sort()
|
295 |
for k in kk:
|
296 |
print k, self.tipos[k]
|
297 |
print "\nTotal Coordenadas %d\n" % geo.Polygon.numCoords
|
298 |
#print "\nExtent: min=(%.2f,%df), max=(%.2f,%.2f)" % (self.minX, self.minY, self.maxX, self.maxY)
|
299 |
print "\nExtent: ", (self.minX, self.minY, self.maxX, self.maxY)*/
|
300 |
String txt = "GML file: '" + name + "': " + lineNr + " l?neas\n"; |
301 |
txt += ("\nGML file: Total Coordenadas: " + Polygon.pointNr + "\n"); |
302 |
txt += ("GML file: Total features: " + collection.size() + "\n"); |
303 |
txt += ("GML file: " + collection.getExtent() + "\n"); |
304 |
txt += ("GML file: " + ((Feature) collection.get(0)).getExtent()); |
305 |
System.out.println(txt);
|
306 |
} |
307 |
|
308 |
public void reProject(ICoordTrans rp) { |
309 |
collection.reProject(rp); |
310 |
setProjection(rp.getPDest()); |
311 |
} |
312 |
|
313 |
/* (non-Javadoc)
|
314 |
* @see org.cresques.io.GeoFile#close()
|
315 |
*/
|
316 |
public void close() { |
317 |
// TODO Auto-generated method stub
|
318 |
} |
319 |
} |