svn-gvsig-desktop / tags / v1_1_Build_1012 / extensions / extGeoProcessing / src / com / iver / cit / gvsig / geoprocess / impl / buffer / fmap / BufferGeoprocess.java @ 12987
History | View | Annotate | Download (21.2 KB)
1 | 5918 | azabala | /*
|
---|---|---|---|
2 | * Created on 01-feb-2006
|
||
3 | *
|
||
4 | * gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
||
5 | *
|
||
6 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
|
||
7 | *
|
||
8 | * This program is free software; you can redistribute it and/or
|
||
9 | * modify it under the terms of the GNU General Public License
|
||
10 | * as published by the Free Software Foundation; either version 2
|
||
11 | * of the License, or (at your option) any later version.
|
||
12 | *
|
||
13 | * This program is distributed in the hope that it will be useful,
|
||
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
16 | * GNU General Public License for more details.
|
||
17 | *
|
||
18 | * You should have received a copy of the GNU General Public License
|
||
19 | * along with this program; if not, write to the Free Software
|
||
20 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
||
21 | *
|
||
22 | * For more information, contact:
|
||
23 | *
|
||
24 | * Generalitat Valenciana
|
||
25 | * Conselleria d'Infraestructures i Transport
|
||
26 | * Av. Blasco Ib??ez, 50
|
||
27 | * 46010 VALENCIA
|
||
28 | * SPAIN
|
||
29 | *
|
||
30 | * +34 963862235
|
||
31 | * gvsig@gva.es
|
||
32 | * www.gvsig.gva.es
|
||
33 | *
|
||
34 | * or
|
||
35 | *
|
||
36 | * IVER T.I. S.A
|
||
37 | * Salamanca 50
|
||
38 | * 46005 Valencia
|
||
39 | * Spain
|
||
40 | *
|
||
41 | * +34 963163400
|
||
42 | * dac@iver.es
|
||
43 | */
|
||
44 | /* CVS MESSAGES:
|
||
45 | *
|
||
46 | * $Id$
|
||
47 | * $Log$
|
||
48 | 12556 | azabala | * Revision 1.3.2.1 2007-07-12 09:27:16 azabala
|
49 | * optimizations in dissolution of buffered features (we dont use strategies to avoid reading of geometries already processed)
|
||
50 | *
|
||
51 | * Revision 1.3 2006/07/21 11:04:50 azabala
|
||
52 | 6496 | azabala | * Unified createTask and process() methods
|
53 | *
|
||
54 | * Revision 1.2 2006/06/29 07:33:57 fjp
|
||
55 | 6093 | fjp | * Cambios ISchemaManager y IFieldManager por terminar
|
56 | *
|
||
57 | * Revision 1.1 2006/06/20 18:20:45 azabala
|
||
58 | 5918 | azabala | * first version in cvs
|
59 | *
|
||
60 | * Revision 1.2 2006/06/02 18:20:58 azabala
|
||
61 | * cuando el buffer es con dissolve se crea indice espacial para optimizar
|
||
62 | *
|
||
63 | * Revision 1.1 2006/05/24 21:14:41 azabala
|
||
64 | * primera version en cvs despues de refactoring orientado a crear un framework extensible de geoprocessing
|
||
65 | *
|
||
66 | * Revision 1.14 2006/05/01 19:18:09 azabala
|
||
67 | * revisi?n general del buffer (a?adidos anillos concentricos, buffers interiores y exteriores, etc)
|
||
68 | *
|
||
69 | * Revision 1.13 2006/03/23 21:02:58 azabala
|
||
70 | * *** empty log message ***
|
||
71 | *
|
||
72 | * Revision 1.12 2006/03/17 19:52:31 azabala
|
||
73 | * *** empty log message ***
|
||
74 | *
|
||
75 | * Revision 1.11 2006/03/14 19:35:13 azabala
|
||
76 | * *** empty log message ***
|
||
77 | *
|
||
78 | * Revision 1.10 2006/03/14 18:32:46 fjp
|
||
79 | * Cambio con LayerDefinition para que sea compatible con la definici?n de tablas tambi?n.
|
||
80 | *
|
||
81 | * Revision 1.9 2006/03/07 21:01:33 azabala
|
||
82 | * *** empty log message ***
|
||
83 | *
|
||
84 | * Revision 1.8 2006/03/06 19:48:39 azabala
|
||
85 | * *** empty log message ***
|
||
86 | *
|
||
87 | * Revision 1.7 2006/03/05 19:56:40 azabala
|
||
88 | * *** empty log message ***
|
||
89 | *
|
||
90 | * Revision 1.6 2006/02/17 16:04:50 azabala
|
||
91 | * *** empty log message ***
|
||
92 | *
|
||
93 | * Revision 1.5 2006/02/13 21:13:49 azabala
|
||
94 | * *** empty log message ***
|
||
95 | *
|
||
96 | * Revision 1.4 2006/02/13 18:38:03 azabala
|
||
97 | * *** empty log message ***
|
||
98 | *
|
||
99 | * Revision 1.3 2006/02/13 17:52:45 azabala
|
||
100 | * *** empty log message ***
|
||
101 | *
|
||
102 | * Revision 1.2 2006/02/12 21:02:44 azabala
|
||
103 | * *** empty log message ***
|
||
104 | *
|
||
105 | * Revision 1.1 2006/02/02 19:47:12 azabala
|
||
106 | * many refactorings
|
||
107 | *
|
||
108 | * Revision 1.1 2006/02/01 19:42:04 azabala
|
||
109 | * First version in CVS
|
||
110 | *
|
||
111 | *
|
||
112 | */
|
||
113 | package com.iver.cit.gvsig.geoprocess.impl.buffer.fmap; |
||
114 | |||
115 | import java.io.File; |
||
116 | import java.io.IOException; |
||
117 | import java.util.Map; |
||
118 | |||
119 | 12556 | azabala | import org.cresques.cts.ICoordTrans; |
120 | 5918 | azabala | import org.cresques.cts.IProjection; |
121 | |||
122 | import com.iver.andami.PluginServices; |
||
123 | import com.iver.cit.gvsig.fmap.DriverException; |
||
124 | 12556 | azabala | import com.iver.cit.gvsig.fmap.core.IGeometry; |
125 | 5918 | azabala | import com.iver.cit.gvsig.fmap.drivers.DriverIOException; |
126 | import com.iver.cit.gvsig.fmap.drivers.FieldDescription; |
||
127 | import com.iver.cit.gvsig.fmap.drivers.ILayerDefinition; |
||
128 | import com.iver.cit.gvsig.fmap.drivers.LayerDefinition; |
||
129 | import com.iver.cit.gvsig.fmap.drivers.SHPLayerDefinition; |
||
130 | import com.iver.cit.gvsig.fmap.drivers.shp.IndexedShpDriver; |
||
131 | import com.iver.cit.gvsig.fmap.edition.EditionException; |
||
132 | import com.iver.cit.gvsig.fmap.edition.writers.shp.ShpWriter; |
||
133 | import com.iver.cit.gvsig.fmap.layers.FBitSet; |
||
134 | import com.iver.cit.gvsig.fmap.layers.FLyrVect; |
||
135 | import com.iver.cit.gvsig.fmap.layers.LayerFactory; |
||
136 | 12556 | azabala | import com.iver.cit.gvsig.fmap.layers.ReadableVectorial; |
137 | 5918 | azabala | import com.iver.cit.gvsig.fmap.operations.strategies.Strategy; |
138 | import com.iver.cit.gvsig.fmap.operations.strategies.StrategyManager; |
||
139 | import com.iver.cit.gvsig.fmap.operations.strategies.VisitException; |
||
140 | import com.iver.cit.gvsig.geoprocess.core.fmap.AbstractGeoprocess; |
||
141 | import com.iver.cit.gvsig.geoprocess.core.fmap.FeaturePersisterProcessor2; |
||
142 | import com.iver.cit.gvsig.geoprocess.core.fmap.GeometryPersisterProcessor; |
||
143 | import com.iver.cit.gvsig.geoprocess.core.fmap.GeoprocessException; |
||
144 | import com.iver.cit.gvsig.geoprocess.core.fmap.IOneLayerGeoprocess; |
||
145 | import com.iver.cit.gvsig.geoprocess.core.fmap.XTypes; |
||
146 | import com.iver.cit.gvsig.geoprocess.impl.dissolve.fmap.AdjacencyDissolveVisitor; |
||
147 | import com.iver.cit.gvsig.geoprocess.impl.dissolve.fmap.DissolveVisitor; |
||
148 | import com.iver.utiles.swing.threads.CancellableMonitorable; |
||
149 | import com.iver.utiles.swing.threads.DefaultCancellableMonitorable; |
||
150 | import com.iver.utiles.swing.threads.IMonitorableTask; |
||
151 | |||
152 | /**
|
||
153 | * Geoprocess that computes a buffer area around each feature's geometry of the
|
||
154 | * input layer. <br>
|
||
155 | * All the points interior to this buffer area has to be at a distance inferior
|
||
156 | * to "buffer distance" to the original geometry. This buffer distance could be
|
||
157 | * constant, or it could be a function of the value of a feature attribute.<br>
|
||
158 | *
|
||
159 | * @author azabala
|
||
160 | *
|
||
161 | */
|
||
162 | public class BufferGeoprocess extends AbstractGeoprocess implements |
||
163 | IOneLayerGeoprocess { |
||
164 | |||
165 | /**
|
||
166 | * flag that represents buffer computing with one only buffer distance.
|
||
167 | */
|
||
168 | public static final byte CONSTANT_DISTANCE_STRATEGY = 0; |
||
169 | |||
170 | /**
|
||
171 | * buffer computing with variable buffer distance in function of feature
|
||
172 | * attribute value
|
||
173 | */
|
||
174 | public static final byte ATTRIBUTE_DISTANCE_STRATEGY = 1; |
||
175 | |||
176 | |||
177 | /**
|
||
178 | * Schema of the result layer
|
||
179 | */
|
||
180 | private ILayerDefinition resultLayerDefinition;
|
||
181 | |||
182 | /**
|
||
183 | * the geoprocess will operate only with selected elements of layer, or with
|
||
184 | * all elements.<br>
|
||
185 | * By default, it work with all elements.
|
||
186 | */
|
||
187 | private boolean bufferOnlySelection = false; |
||
188 | |||
189 | /**
|
||
190 | * this flag makes the process to dissolve or not geometries of the result
|
||
191 | * layer, to avoid intersections in a polygon layer. By default, is true.<br>
|
||
192 | */
|
||
193 | private boolean dissolveBuffers = false; |
||
194 | |||
195 | /**
|
||
196 | * Iterates over input layer geometries to compute buffered geometries by
|
||
197 | * using a distance buffer function.
|
||
198 | */
|
||
199 | private BufferVisitor bufferVisitor;
|
||
200 | |||
201 | /**
|
||
202 | * Constructor
|
||
203 | *
|
||
204 | * @param bufferLayer
|
||
205 | * layer to buffer
|
||
206 | */
|
||
207 | public BufferGeoprocess(FLyrVect bufferLayer) {
|
||
208 | setFirstOperand(bufferLayer); |
||
209 | } |
||
210 | |||
211 | /**
|
||
212 | * Sets layer to buffer
|
||
213 | */
|
||
214 | public void setFirstOperand(FLyrVect bufferLayer) { |
||
215 | this.firstLayer = bufferLayer;
|
||
216 | } |
||
217 | |||
218 | /**
|
||
219 | * Sets user entry params to this geoprocess. This params represents user
|
||
220 | * preferences (FLayer are not optional params)
|
||
221 | */
|
||
222 | public void setParameters(Map params) throws GeoprocessException { |
||
223 | Boolean onlySelection = (Boolean) params.get("layer_selection"); |
||
224 | if (onlySelection != null) |
||
225 | bufferOnlySelection = onlySelection.booleanValue(); |
||
226 | |||
227 | Boolean dissolve = (Boolean) params.get("dissolve_buffers"); |
||
228 | if (dissolve != null) |
||
229 | dissolveBuffers = dissolve.booleanValue(); |
||
230 | |||
231 | Byte strategy_flat = (Byte) params.get("strategy_flag"); |
||
232 | if (strategy_flat != null |
||
233 | && strategy_flat.byteValue() == ATTRIBUTE_DISTANCE_STRATEGY) { |
||
234 | // must check attribute name not null
|
||
235 | String attributeName = (String) params.get("attr_name"); |
||
236 | if (attributeName != null) { |
||
237 | bufferVisitor = new AttributeBufferVisitor(attributeName);
|
||
238 | } else {
|
||
239 | throw new GeoprocessException( |
||
240 | "Buffer por atributo sin nombre de atributo");
|
||
241 | } |
||
242 | } else {
|
||
243 | // default, constant strategy
|
||
244 | // must check distance not null
|
||
245 | Double dist = (Double) params.get("buffer_distance"); |
||
246 | if (dist != null) { |
||
247 | double distance = dist.doubleValue();
|
||
248 | bufferVisitor = new ConstantDistanceBufferVisitor(distance);
|
||
249 | } else {
|
||
250 | throw new GeoprocessException( |
||
251 | "Buffer por dist constante sin distancia");
|
||
252 | } |
||
253 | }// else
|
||
254 | |||
255 | Byte capflag = (Byte) params.get("cap"); |
||
256 | if(capflag != null){ |
||
257 | bufferVisitor.setTypeOfCap(capflag.byteValue()); |
||
258 | } |
||
259 | |||
260 | Byte typePolFlag = (Byte) params.get("typePolBuffer"); |
||
261 | if(typePolFlag != null){ |
||
262 | bufferVisitor.setTypeOfBuffer(typePolFlag.byteValue()); |
||
263 | } |
||
264 | |||
265 | Integer numRingsFlag = (Integer) params.get("numRings"); |
||
266 | if(numRingsFlag != null){ |
||
267 | bufferVisitor.setNumberOfRadialBuffers(numRingsFlag.intValue()); |
||
268 | } |
||
269 | } |
||
270 | |||
271 | |||
272 | /**
|
||
273 | * Checks preconditions to this geoprocess (input layer mustnt be null), etc
|
||
274 | */
|
||
275 | public void checkPreconditions() throws GeoprocessException { |
||
276 | if (firstLayer == null) |
||
277 | throw new GeoprocessException("Buffer con capa de entrada a null"); |
||
278 | if (this.writer == null || this.schemaManager == null) { |
||
279 | throw new GeoprocessException( |
||
280 | "Operacion de buffer sin especificar capa de resultados");
|
||
281 | } |
||
282 | } |
||
283 | |||
284 | /**
|
||
285 | * Computes buffer geoprocess, and saves results in solution layer.
|
||
286 | *
|
||
287 | */
|
||
288 | public void process() throws GeoprocessException { |
||
289 | try {
|
||
290 | 6496 | azabala | createTask().run(); |
291 | } catch (Exception e) { |
||
292 | throw new GeoprocessException("Error durante la ejecuci?n del buffer", e); |
||
293 | 5918 | azabala | } |
294 | } |
||
295 | |||
296 | /**
|
||
297 | * Creates a temp layer with the file referenced by writer.
|
||
298 | * It is useful when you want to dissolve buffers, to avoid working
|
||
299 | * with intermediate results in memory.
|
||
300 | * @return
|
||
301 | * @throws IOException
|
||
302 | * @throws DriverException
|
||
303 | */
|
||
304 | public FLyrVect createTempLayer() throws IOException, DriverException { |
||
305 | FLyrVect solution = null;
|
||
306 | String fileName = ((ShpWriter) writer).getShpPath();
|
||
307 | File file = new File(fileName); |
||
308 | IProjection proj = firstLayer.getProjection(); |
||
309 | IndexedShpDriver driver = new IndexedShpDriver();
|
||
310 | driver.open(file); |
||
311 | driver.initialize(); |
||
312 | solution = (FLyrVect) LayerFactory.createLayer(fileName, driver, file, |
||
313 | proj); |
||
314 | return solution;
|
||
315 | |||
316 | } |
||
317 | |||
318 | private void computeAndDissolveBuffer(Strategy strategy, |
||
319 | CancellableMonitorable cancel) throws EditionException,
|
||
320 | DriverException, VisitException, IOException {
|
||
321 | |||
322 | ShpWriter mainWriter = (ShpWriter) writer; |
||
323 | writer = new ShpWriter();
|
||
324 | String temp = System.getProperty("java.io.tmpdir") + "/buffer" |
||
325 | + System.currentTimeMillis() + ".shp"; |
||
326 | File newFile = new File(temp); |
||
327 | ((ShpWriter) writer).setFile(newFile); |
||
328 | ((ShpWriter) writer) |
||
329 | .initialize((LayerDefinition) resultLayerDefinition); |
||
330 | ((SHPLayerDefinition) resultLayerDefinition).setFile(newFile); |
||
331 | 6093 | fjp | schemaManager.createSchema(resultLayerDefinition); |
332 | 5918 | azabala | bufferVisitor.setBufferProcessor(new GeometryPersisterProcessor(
|
333 | resultLayerDefinition, schemaManager, writer)); |
||
334 | |||
335 | computeOnlyBuffers(strategy, cancel); |
||
336 | FLyrVect tempLayer = createTempLayer(); |
||
337 | |||
338 | writer = mainWriter; |
||
339 | FeaturePersisterProcessor2 processor = new FeaturePersisterProcessor2(
|
||
340 | writer); |
||
341 | AdjacencyDissolveVisitor dissolveVisitor = |
||
342 | new AdjacencyDissolveVisitor(null, processor); |
||
343 | Strategy secondPassStrategy = StrategyManager.getStrategy(tempLayer); |
||
344 | dissolveVisitor.setStrategy(secondPassStrategy); |
||
345 | long t0 = System.currentTimeMillis(); |
||
346 | secondPassStrategy.process(dissolveVisitor, cancel); |
||
347 | long t1 = System.currentTimeMillis(); |
||
348 | System.out.println((t1-t0)+" en dissolver los buffers"); |
||
349 | } |
||
350 | |||
351 | /**
|
||
352 | * Computes buffers of input layer, and saves them with the
|
||
353 | * actual writer.
|
||
354 | * @param strategy
|
||
355 | * @param cancel
|
||
356 | * @throws EditionException
|
||
357 | * @throws DriverException
|
||
358 | * @throws VisitException
|
||
359 | */
|
||
360 | private void computeOnlyBuffers(Strategy strategy, |
||
361 | CancellableMonitorable cancel) throws EditionException,
|
||
362 | DriverException, VisitException { |
||
363 | |||
364 | bufferVisitor.setBufferProcessor(new GeometryPersisterProcessor(
|
||
365 | this.resultLayerDefinition, this.schemaManager, this.writer)); |
||
366 | |||
367 | if (bufferOnlySelection) {
|
||
368 | strategy.process(bufferVisitor, firstLayer.getRecordset() |
||
369 | .getSelection(), cancel); |
||
370 | } else {
|
||
371 | strategy.process(bufferVisitor, cancel); |
||
372 | } |
||
373 | } |
||
374 | |||
375 | /**
|
||
376 | * Creates a LayerDefinition in function of:
|
||
377 | * a) input layer
|
||
378 | * b) user selections
|
||
379 | * c) buffer geoprocess itselt operation
|
||
380 | *
|
||
381 | * Users of this geoprocess may construct a Writer from this LayerDefinition
|
||
382 | * (for example, to save to shp ShpWriter needs a File and a LayerDefinition
|
||
383 | * -to create this file with the proper schema-)
|
||
384 | *
|
||
385 | * FIXME
|
||
386 | * We cant call this method before setParams(Map params). Launch a exception
|
||
387 | *
|
||
388 | * ILayerDefinition wont be the same for dissolved buffers layers
|
||
389 | *
|
||
390 | */
|
||
391 | public ILayerDefinition createLayerDefinition() {
|
||
392 | // In a buffer geoprocess we only well have a geometry
|
||
393 | // and a FID
|
||
394 | if (resultLayerDefinition == null) { |
||
395 | // if(dissolveBuffers){
|
||
396 | // resultLayerDefinition = createDissolvedBuffersDefinition();
|
||
397 | // }else{
|
||
398 | if(bufferVisitor.getTypeOfBuffer() == BufferVisitor.BUFFER_INSIDE_OUTSIDE_POLY){
|
||
399 | resultLayerDefinition = createPositiveAndNegativeBufferDefinition(); |
||
400 | }else{
|
||
401 | resultLayerDefinition = createPositiveOrNegativeBufferDefinition(); |
||
402 | } |
||
403 | // }
|
||
404 | } |
||
405 | return resultLayerDefinition;
|
||
406 | } |
||
407 | |||
408 | /**
|
||
409 | * Auxilar method to create a layer definition for buffer's process which
|
||
410 | * needs to create only internal or external buffers.
|
||
411 | * @return
|
||
412 | */
|
||
413 | protected ILayerDefinition createPositiveOrNegativeBufferDefinition(){
|
||
414 | ILayerDefinition resultLayerDefinition = new SHPLayerDefinition();
|
||
415 | resultLayerDefinition.setShapeType(XTypes.POLYGON); |
||
416 | FieldDescription[] fields = new FieldDescription[2]; |
||
417 | fields[0] = new FieldDescription(); |
||
418 | fields[0].setFieldLength(10); |
||
419 | fields[0].setFieldName("FID"); |
||
420 | fields[0].setFieldType(XTypes.BIGINT);
|
||
421 | fields[1] = new FieldDescription(); |
||
422 | fields[1].setFieldLength(10); |
||
423 | fields[1].setFieldDecimalCount(4); |
||
424 | fields[1].setFieldName("DIST"); |
||
425 | fields[1].setFieldType(XTypes.DOUBLE);
|
||
426 | resultLayerDefinition.setFieldsDesc(fields); |
||
427 | return resultLayerDefinition;
|
||
428 | } |
||
429 | |||
430 | |||
431 | /**
|
||
432 | * Auxilar method to create a layer definition for buffer's process which
|
||
433 | * needs to create internal and external buffers.
|
||
434 | * @return
|
||
435 | */
|
||
436 | protected ILayerDefinition createPositiveAndNegativeBufferDefinition(){
|
||
437 | ILayerDefinition resultLayerDefinition = new SHPLayerDefinition();
|
||
438 | resultLayerDefinition.setShapeType(XTypes.POLYGON); |
||
439 | FieldDescription[] fields = new FieldDescription[3]; |
||
440 | fields[0] = new FieldDescription(); |
||
441 | fields[0].setFieldLength(10); |
||
442 | fields[0].setFieldName("FID"); |
||
443 | fields[0].setFieldType(XTypes.BIGINT);
|
||
444 | fields[1] = new FieldDescription(); |
||
445 | fields[1].setFieldLength(10); |
||
446 | fields[1].setFieldDecimalCount(4); |
||
447 | fields[1].setFieldName("FROM"); |
||
448 | fields[1].setFieldType(XTypes.DOUBLE);
|
||
449 | fields[2] = new FieldDescription(); |
||
450 | fields[2].setFieldLength(10); |
||
451 | fields[2].setFieldDecimalCount(4); |
||
452 | fields[2].setFieldName("TO"); |
||
453 | fields[2].setFieldType(XTypes.DOUBLE);
|
||
454 | |||
455 | resultLayerDefinition.setFieldsDesc(fields); |
||
456 | return resultLayerDefinition;
|
||
457 | } |
||
458 | |||
459 | /**
|
||
460 | * Creates a CancelableMonitorable instance to monitor and cancels
|
||
461 | * ITask's buffer creation.
|
||
462 | * @return
|
||
463 | */
|
||
464 | private DefaultCancellableMonitorable createCancelMonitor() {
|
||
465 | DefaultCancellableMonitorable monitor = new DefaultCancellableMonitorable();
|
||
466 | monitor.setInitialStep(0);
|
||
467 | if (this.bufferOnlySelection) { |
||
468 | FBitSet selection = null;
|
||
469 | try {
|
||
470 | selection = firstLayer.getRecordset().getSelection(); |
||
471 | } catch (DriverException e) {
|
||
472 | // TODO Auto-generated catch block
|
||
473 | e.printStackTrace(); |
||
474 | } |
||
475 | int numSelected = selection.cardinality();
|
||
476 | monitor.setFinalStep(numSelected); |
||
477 | } else {
|
||
478 | try {
|
||
479 | monitor.setFinalStep(firstLayer.getSource().getShapeCount()); |
||
480 | } catch (DriverIOException e) {
|
||
481 | e.printStackTrace(); |
||
482 | } |
||
483 | } |
||
484 | if (!dissolveBuffers) {
|
||
485 | // if we dont look for adjacents, is a determinated
|
||
486 | // task (we know how many steps we are going to do
|
||
487 | monitor.setDeterminatedProcess(true);
|
||
488 | |||
489 | } else {
|
||
490 | monitor.setDeterminatedProcess(false);
|
||
491 | }// if dissolvebuffer
|
||
492 | return monitor;
|
||
493 | } |
||
494 | |||
495 | public IMonitorableTask createTask() {
|
||
496 | /*
|
||
497 | * Allows to monitor and cancel the task
|
||
498 | */
|
||
499 | final CancellableMonitorable cancelMonitor = createCancelMonitor();
|
||
500 | /*
|
||
501 | * Main Message for reporting buffer geoprocess
|
||
502 | */
|
||
503 | final String message = PluginServices.getText(this, "Mensaje_buffer"); |
||
504 | /*
|
||
505 | * Message for report individual step of buffer computation
|
||
506 | */
|
||
507 | final String note = PluginServices.getText(this, |
||
508 | "Mensaje_procesando_buffer");
|
||
509 | /*
|
||
510 | * Message for report individual step of dissolving of buffers
|
||
511 | */
|
||
512 | final String note2 = PluginServices.getText(this, |
||
513 | "Mensaje_procesando_buffer2");
|
||
514 | /*
|
||
515 | * Concatenation string
|
||
516 | */
|
||
517 | final String of = PluginServices.getText(this, "De"); |
||
518 | |||
519 | return new IMonitorableTask() { |
||
520 | 12556 | azabala | DissolveVisitor dissolveVisitor; |
521 | |||
522 | 5918 | azabala | private boolean finished = false; |
523 | String currentNote = note;
|
||
524 | |||
525 | public int getInitialStep() { |
||
526 | return cancelMonitor.getInitialStep();
|
||
527 | } |
||
528 | |||
529 | public int getFinishStep() { |
||
530 | return cancelMonitor.getFinalStep();
|
||
531 | } |
||
532 | |||
533 | public int getCurrentStep() { |
||
534 | 12556 | azabala | if(currentNote == note2)
|
535 | return dissolveVisitor.getDissolvedGeometries().cardinality();
|
||
536 | else
|
||
537 | return cancelMonitor.getCurrentStep();
|
||
538 | 5918 | azabala | } |
539 | |||
540 | public String getStatusMessage() { |
||
541 | return message;
|
||
542 | } |
||
543 | |||
544 | public String getNote() { |
||
545 | return currentNote + ": " + getCurrentStep() + " " + of + " " |
||
546 | + getFinishStep(); |
||
547 | } |
||
548 | |||
549 | public void cancel() { |
||
550 | ((DefaultCancellableMonitorable) cancelMonitor) |
||
551 | .setCanceled(true);
|
||
552 | BufferGeoprocess.this.cancel(); |
||
553 | } |
||
554 | |||
555 | public void run() { |
||
556 | |||
557 | Strategy strategy = StrategyManager.getStrategy(firstLayer); |
||
558 | resultLayerDefinition = createLayerDefinition(); |
||
559 | try {
|
||
560 | if (dissolveBuffers) {
|
||
561 | //computeAndDissolveBuffer(strategy, cancelMonitor);
|
||
562 | ShpWriter mainWriter = (ShpWriter) writer; |
||
563 | writer = new ShpWriter();
|
||
564 | String temp = System.getProperty("java.io.tmpdir") + |
||
565 | "/buffer" +
|
||
566 | System.currentTimeMillis() +
|
||
567 | ".shp";
|
||
568 | File newFile = new File(temp); |
||
569 | ((ShpWriter) writer).setFile(newFile); |
||
570 | ((ShpWriter) writer).initialize( |
||
571 | (LayerDefinition) resultLayerDefinition); |
||
572 | ((SHPLayerDefinition) resultLayerDefinition).setFile(newFile); |
||
573 | 6093 | fjp | schemaManager.createSchema(resultLayerDefinition); |
574 | 5918 | azabala | bufferVisitor.setBufferProcessor(new GeometryPersisterProcessor(
|
575 | resultLayerDefinition, schemaManager, writer)); |
||
576 | computeOnlyBuffers(strategy, cancelMonitor); |
||
577 | 12556 | azabala | |
578 | 5918 | azabala | //dissolving buffers
|
579 | cancelMonitor.setCurrentStep(0);
|
||
580 | FLyrVect tempLayer = createTempLayer(); |
||
581 | tempLayer.createSpatialIndex(); |
||
582 | cancelMonitor.setFinalStep(tempLayer.getSource().getShapeCount()); |
||
583 | writer = mainWriter; |
||
584 | FeaturePersisterProcessor2 processor = new FeaturePersisterProcessor2(
|
||
585 | writer); |
||
586 | // AdjacencyDissolveVisitor dissolveVisitor =
|
||
587 | // new AdjacencyDissolveVisitor(null, processor);
|
||
588 | 12556 | azabala | dissolveVisitor = |
589 | 5918 | azabala | createDissolveVisitor(processor); |
590 | 12556 | azabala | currentNote = note2; |
591 | |||
592 | |||
593 | 5918 | azabala | Strategy secondPassStrategy = StrategyManager.getStrategy(tempLayer); |
594 | dissolveVisitor.setStrategy(secondPassStrategy); |
||
595 | 12556 | azabala | if(dissolveVisitor instanceof AdjacencyDissolveVisitor){ |
596 | ((AdjacencyDissolveVisitor)dissolveVisitor).setCancelMonitor(cancelMonitor); |
||
597 | } |
||
598 | // secondPassStrategy.process(dissolveVisitor, cancelMonitor);
|
||
599 | |||
600 | |||
601 | ReadableVectorial source = tempLayer.getSource(); |
||
602 | ICoordTrans ct = tempLayer.getCoordTrans(); |
||
603 | |||
604 | if(dissolveVisitor.start(tempLayer)){
|
||
605 | source.start(); |
||
606 | for (int i = 0; i < source.getShapeCount(); i++) { |
||
607 | if(cancelMonitor.isCanceled()){
|
||
608 | source.stop(); |
||
609 | return;
|
||
610 | } |
||
611 | if(dissolveVisitor.getDissolvedGeometries().get(i))
|
||
612 | continue;
|
||
613 | IGeometry geom = source.getShape(i); |
||
614 | if (ct != null) { |
||
615 | geom.reProject(ct); |
||
616 | } |
||
617 | dissolveVisitor.visit(geom, i); |
||
618 | }//for
|
||
619 | source.stop(); |
||
620 | } |
||
621 | dissolveVisitor.stop(tempLayer); |
||
622 | |||
623 | 5918 | azabala | } else {
|
624 | computeOnlyBuffers(strategy, cancelMonitor); |
||
625 | } |
||
626 | finished = true;
|
||
627 | } catch (Exception e) { |
||
628 | e.printStackTrace(); |
||
629 | finished = true;
|
||
630 | } |
||
631 | } |
||
632 | |||
633 | /**
|
||
634 | * Creates a DissolveVisitor to dissolve computed buffers.
|
||
635 | * If we only computed a ring buffer, dissolve
|
||
636 | * criteria will be adjacency.
|
||
637 | * If we computed many buffers, dissolve criteria will be
|
||
638 | * adjacency and alphanumeric (value of FROM-TO or DISTANCE fields of the
|
||
639 | * buffer geometry)
|
||
640 | * @return
|
||
641 | */
|
||
642 | private DissolveVisitor createDissolveVisitor(FeaturePersisterProcessor2 processor) {
|
||
643 | //int numBuffers = bufferVisitor.getNumberOfRadialBuffers();
|
||
644 | //if(numBuffers == 1){
|
||
645 | return new AdjacencyDissolveVisitor(null,processor); |
||
646 | //}
|
||
647 | /*DOCUMENTAR ESTE CASO
|
||
648 | else{
|
||
649 | //Esto no funciona bien. Para dissolver buffers
|
||
650 | //con varios rings, da errores topol?gicos.
|
||
651 | |||
652 | //La ?nica soluci?n es calcular 1? la uni?n, luego
|
||
653 | //y luego los multirings
|
||
654 | |||
655 | if(bufferVisitor.getTypeOfBuffer() == BufferVisitor.BUFFER_INSIDE_OUTSIDE_POLY){
|
||
656 | return new DissolveVisitor("FROM", processor);
|
||
657 | }else{
|
||
658 | return new DissolveVisitor("DIST", processor);
|
||
659 | }
|
||
660 | }
|
||
661 | */
|
||
662 | } |
||
663 | |||
664 | public boolean isDefined() { |
||
665 | return cancelMonitor.isDeterminatedProcess();
|
||
666 | } |
||
667 | |||
668 | public boolean isCanceled() { |
||
669 | return cancelMonitor.isCanceled();
|
||
670 | } |
||
671 | |||
672 | public boolean isFinished() { |
||
673 | return finished;
|
||
674 | } |
||
675 | }; |
||
676 | } |
||
677 | } |