svn-gvsig-desktop / branches / CqCMSDvp / libraries / libCq CMS for java.old / src / org / cresques / io / GmlFile.java @ 2312
History | View | Annotate | Download (8.68 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 java.util.Hashtable; |
| 27 |
|
| 28 |
import java.io.FileReader; |
| 29 |
import java.io.BufferedReader; |
| 30 |
import java.io.FileNotFoundException; |
| 31 |
import java.io.IOException; |
| 32 |
import java.io.InputStream; |
| 33 |
import java.io.InputStreamReader; |
| 34 |
import java.io.Reader; |
| 35 |
|
| 36 |
import org.cresques.cts.ICoordTrans; |
| 37 |
import org.cresques.cts.IProjection; |
| 38 |
|
| 39 |
import org.cresques.px.IObjList; |
| 40 |
import org.cresques.px.gml.Feature; |
| 41 |
import org.cresques.px.gml.FeatureCollection; |
| 42 |
import org.cresques.px.gml.Geometry; |
| 43 |
import org.cresques.px.gml.LineString; |
| 44 |
import org.cresques.px.gml.MultiGeometry; |
| 45 |
import org.cresques.px.gml.MultiPolygon; |
| 46 |
import org.cresques.px.gml.Polygon; |
| 47 |
import org.cresques.px.gml.Point; |
| 48 |
|
| 49 |
/**
|
| 50 |
* Cargador de ficheros .gml de JUMP de vivid solutions.
|
| 51 |
* Actualmente lee un subconjunto de datos. Datos de prueba generados por JUMP.
|
| 52 |
* @author "Luis W. Sevilla" <sevilla_lui@gva.es>
|
| 53 |
*/
|
| 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 |
|
| 60 |
int where = NOWHERE;
|
| 61 |
Hashtable tipos = new Hashtable(); |
| 62 |
|
| 63 |
final static String LT="<", GT=">"; |
| 64 |
|
| 65 |
FeatureCollection collection = null;
|
| 66 |
Feature activeFeature = null;
|
| 67 |
Geometry activeGeometry = null;
|
| 68 |
Geometry activeMember = null;
|
| 69 |
|
| 70 |
String buf = null; |
| 71 |
String propName = null; |
| 72 |
long lineNr = 0; |
| 73 |
|
| 74 |
BufferedReader fi;
|
| 75 |
long l = 0; |
| 76 |
int count = 0; |
| 77 |
|
| 78 |
/**
|
| 79 |
* Constructor de la clase Gml
|
| 80 |
*
|
| 81 |
*/
|
| 82 |
|
| 83 |
public GmlFile(IProjection proj, String name) { |
| 84 |
super(proj, name);
|
| 85 |
} |
| 86 |
|
| 87 |
/**
|
| 88 |
* Carga un .gml
|
| 89 |
* @param name nombre del fichero
|
| 90 |
*/
|
| 91 |
|
| 92 |
public GeoFile load() {
|
| 93 |
System.out.println("Cargando "+name+" ..."); |
| 94 |
try {
|
| 95 |
if (FileFolder.isUrl(name)) {
|
| 96 |
ZipFileFolder zFolder = new ZipFileFolder(name);
|
| 97 |
InputStream is = zFolder.getInputStream(name);
|
| 98 |
return load(new InputStreamReader(is)); |
| 99 |
} else
|
| 100 |
return load(new FileReader(name)); |
| 101 |
} catch (FileNotFoundException e) { |
| 102 |
e.printStackTrace(); |
| 103 |
} catch (IOException ie) { |
| 104 |
System.err.println("ERROR."+l+"lineas leidas"); |
| 105 |
ie.printStackTrace(); |
| 106 |
} |
| 107 |
return this; |
| 108 |
} |
| 109 |
|
| 110 |
public GeoFile load(Reader fr) { |
| 111 |
try {
|
| 112 |
fi = new BufferedReader(fr); |
| 113 |
while ((buf = fi.readLine()) != null) { |
| 114 |
//System.out.println(buf);
|
| 115 |
l++; |
| 116 |
preParseLine(buf.trim()); |
| 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 |
this.lineNr = l;
|
| 127 |
extent.add(collection.getExtent()); |
| 128 |
return this; |
| 129 |
} |
| 130 |
|
| 131 |
/**
|
| 132 |
* Analiza una l?nea del fichero .gml
|
| 133 |
* @param l linea que analiza
|
| 134 |
*/
|
| 135 |
|
| 136 |
void preParseLine(String l) { |
| 137 |
String line1;
|
| 138 |
//System.err.println("pre0: '"+l+"'");
|
| 139 |
//if (count++>500) System.exit(1);
|
| 140 |
|
| 141 |
if (l.indexOf(LT) > 0) { |
| 142 |
line1 = l.substring(0, l.indexOf(LT)).trim();
|
| 143 |
l = l.substring(l.indexOf(LT)).trim(); |
| 144 |
//System.err.println("pre1: '"+line1+"', '"+l+"'");
|
| 145 |
preParseLine(line1); |
| 146 |
preParseLine(l); |
| 147 |
return;
|
| 148 |
} |
| 149 |
if (l.indexOf(GT) >= 0 && l.indexOf(GT) != l.length()-1) { |
| 150 |
line1 = l.substring(0, l.indexOf(GT)+1).trim(); |
| 151 |
l = l.substring(l.indexOf(GT)+1).trim();
|
| 152 |
//System.err.println("pre2: '"+line1+"', '"+l+"'");
|
| 153 |
preParseLine(line1); |
| 154 |
preParseLine(l); |
| 155 |
return;
|
| 156 |
} |
| 157 |
parseToken(l); |
| 158 |
} |
| 159 |
|
| 160 |
/**
|
| 161 |
* Analiza un token
|
| 162 |
* @param l
|
| 163 |
*/
|
| 164 |
|
| 165 |
void parseToken(String l) { |
| 166 |
String token = null; |
| 167 |
|
| 168 |
//System.err.println(l);
|
| 169 |
if (l.length()>0 && l.substring(0,1).compareTo(LT) == 0) { |
| 170 |
token = l.substring(1,l.indexOf(GT));
|
| 171 |
if (token.compareTo("gml:coordinates") == 0) { |
| 172 |
where = INCOORDINATES; |
| 173 |
} else if (token.compareTo("/gml:coordinates") == 0) { |
| 174 |
where = NOWHERE; |
| 175 |
} else if (token.compareTo("gml:LinearRing") == 0) { |
| 176 |
} else if (token.compareTo("/gml:LinearRing") == 0) { |
| 177 |
} else if (token.compareTo("gml:Polygon") == 0) { |
| 178 |
activeMember = new Polygon(); |
| 179 |
if (activeGeometry == null) |
| 180 |
activeGeometry = activeMember; |
| 181 |
} else if (token.compareTo("/gml:Polygon") == 0) { |
| 182 |
if (activeGeometry.getClass() == MultiPolygon.class)
|
| 183 |
((MultiPolygon) activeGeometry).add(activeMember); |
| 184 |
activeMember = null;
|
| 185 |
} else if (token.compareTo("gml:LineString") == 0) { |
| 186 |
activeMember = new LineString();
|
| 187 |
if (activeGeometry == null) |
| 188 |
activeGeometry = activeMember; |
| 189 |
} else if (token.compareTo("/gml:LineString") == 0) { |
| 190 |
if (activeGeometry.getClass() == MultiGeometry.class)
|
| 191 |
((MultiGeometry) activeGeometry).add(activeMember); |
| 192 |
activeMember = null;
|
| 193 |
} else if (token.compareTo("gml:outerBoundaryIs") == 0) { |
| 194 |
} else if (token.compareTo("/gml:outerBoundaryIs") == 0) { |
| 195 |
} else if (token.compareTo("featureCollection") == 0) { |
| 196 |
collection = new FeatureCollection(proj);
|
| 197 |
} else if (token.compareTo("/featureCollection") == 0) { |
| 198 |
} else if (token.compareTo("feature") == 0) { |
| 199 |
System.err.println("feature"); |
| 200 |
activeFeature = new Feature();
|
| 201 |
} else if (token.compareTo("/feature") == 0) { |
| 202 |
collection.add(activeFeature); |
| 203 |
activeFeature = null;
|
| 204 |
} else if (token.compareTo("geometry") == 0) { |
| 205 |
} else if (token.compareTo("/geometry") == 0) { |
| 206 |
activeFeature.setGeometry(activeGeometry); |
| 207 |
activeGeometry = null;
|
| 208 |
activeMember = null;
|
| 209 |
} else if (token.compareTo("gml:Point") == 0) { |
| 210 |
activeMember = new Point(); |
| 211 |
if (activeGeometry == null) |
| 212 |
activeGeometry = activeMember; |
| 213 |
} else if (token.compareTo("/gml:Point") == 0) { |
| 214 |
activeMember = null;
|
| 215 |
} else if (token.compareTo("gml:MultiPolygon") == 0) { |
| 216 |
activeGeometry = new MultiPolygon();
|
| 217 |
} else if (token.compareTo("/gml:MultiPolygon") == 0) { |
| 218 |
} else if (token.compareTo("gml:MultiPoint") == 0) { |
| 219 |
//activeGeometry = new MultiPoint();
|
| 220 |
} else if (token.compareTo("/gml:MultiPoint") == 0) { |
| 221 |
} else if (token.compareTo("gml:polygonMember") == 0) { |
| 222 |
} else if (token.compareTo("/gml:polygonMember") == 0) { |
| 223 |
} else if (token.compareTo("gml:innerBoundaryIs") == 0) { |
| 224 |
((Polygon) activeMember).setInnerBoundary();
|
| 225 |
} else if (token.compareTo("/gml:innerBoundaryIs") == 0) { |
| 226 |
} else if (token.startsWith("property")) { |
| 227 |
where = INPROPERTY; |
| 228 |
propName = l.substring(l.indexOf("\"")+1); |
| 229 |
propName = propName.substring(0,propName.indexOf("\"")); |
| 230 |
} else if (token.startsWith("/property")) { |
| 231 |
where = NOWHERE; |
| 232 |
|
| 233 |
Integer tipo = new Integer(0); |
| 234 |
if (tipos.containsKey(token)) tipo = (Integer) tipos.get(token); |
| 235 |
tipos.put(token, new Integer(tipo.intValue() + 1)); |
| 236 |
} |
| 237 |
} else {
|
| 238 |
switch (where) {
|
| 239 |
case INPROPERTY:
|
| 240 |
activeFeature.setProp(propName, l); |
| 241 |
break;
|
| 242 |
case INCOORDINATES:
|
| 243 |
String [] txt = l.split(","); |
| 244 |
double [] pt = new double[3]; |
| 245 |
for (int i=0; i<txt.length; i++) |
| 246 |
pt[i] = Double.parseDouble(txt[i]);
|
| 247 |
activeMember.add(proj.createPoint(pt[0], pt[1])); |
| 248 |
break;
|
| 249 |
} |
| 250 |
} |
| 251 |
} |
| 252 |
|
| 253 |
/**
|
| 254 |
* Obtiene la lista de features.
|
| 255 |
*/
|
| 256 |
|
| 257 |
public IObjList getObjects() {
|
| 258 |
return collection;
|
| 259 |
} |
| 260 |
|
| 261 |
/**
|
| 262 |
* Saca las estadisticas del fichero por stdout.
|
| 263 |
*/
|
| 264 |
|
| 265 |
public void pintaStats() { |
| 266 |
/* print "GML file '%s': %d lineas" % (self.name, self.lineNr)
|
| 267 |
print "GML Tokens:"
|
| 268 |
kk = self.tipos.keys()
|
| 269 |
kk.sort()
|
| 270 |
for k in kk:
|
| 271 |
print k, self.tipos[k]
|
| 272 |
print "\nTotal Coordenadas %d\n" % geo.Polygon.numCoords
|
| 273 |
#print "\nExtent: min=(%.2f,%df), max=(%.2f,%.2f)" % (self.minX, self.minY, self.maxX, self.maxY)
|
| 274 |
print "\nExtent: ", (self.minX, self.minY, self.maxX, self.maxY)*/
|
| 275 |
String txt = "GML file: '"+name+"': "+lineNr+" l?neas\n"; |
| 276 |
txt += "\nGML file: Total Coordenadas: "+Polygon.pointNr+"\n"; |
| 277 |
txt += "GML file: Total features: "+collection.size()+"\n"; |
| 278 |
txt += "GML file: "+collection.getExtent()+"\n"; |
| 279 |
txt += "GML file: "+((Feature) collection.get(0)).getExtent(); |
| 280 |
System.out.println(txt);
|
| 281 |
} |
| 282 |
|
| 283 |
public void reProject(ICoordTrans rp) { |
| 284 |
collection.reProject(rp); |
| 285 |
setProjection(rp.getPDest()); |
| 286 |
} |
| 287 |
|
| 288 |
/* (non-Javadoc)
|
| 289 |
* @see org.cresques.io.GeoFile#close()
|
| 290 |
*/
|
| 291 |
public void close() { |
| 292 |
// TODO Auto-generated method stub
|
| 293 |
|
| 294 |
} |
| 295 |
|
| 296 |
|
| 297 |
} |