Revision 4447 trunk/extensions/extGeoProcessing/src/com/iver/gvsig/geoprocessing/impl/convexhull/ConvexHullGeoprocess.java
| ConvexHullGeoprocess.java | ||
|---|---|---|
| 45 | 45 |
* |
| 46 | 46 |
* $Id$ |
| 47 | 47 |
* $Log$ |
| 48 |
* Revision 1.6 2006-03-14 18:32:46 fjp |
|
| 48 |
* Revision 1.7 2006-03-15 18:31:06 azabala |
|
| 49 |
* *** empty log message *** |
|
| 50 |
* |
|
| 51 |
* Revision 1.6 2006/03/14 18:32:46 fjp |
|
| 49 | 52 |
* Cambio con LayerDefinition para que sea compatible con la definici?n de tablas tambi?n. |
| 50 | 53 |
* |
| 51 | 54 |
* Revision 1.5 2006/03/07 21:01:33 azabala |
| ... | ... | |
| 62 | 65 |
* |
| 63 | 66 |
* Revision 1.1 2006/02/17 16:32:20 azabala |
| 64 | 67 |
* *** empty log message *** |
| 65 |
* |
|
| 66 |
* |
|
| 67 |
*/ |
|
| 68 |
* |
|
| 69 |
* |
|
| 70 |
*/ |
|
| 71 |
|
|
| 68 | 72 |
package com.iver.gvsig.geoprocessing.impl.convexhull; |
| 69 | 73 |
|
| 70 | 74 |
import java.util.Map; |
| 71 | 75 |
|
| 72 |
|
|
| 73 | 76 |
import com.iver.cit.gvsig.fmap.DriverException; |
| 74 | 77 |
import com.iver.cit.gvsig.fmap.core.IFeature; |
| 75 | 78 |
import com.iver.cit.gvsig.fmap.core.IGeometry; |
| 79 |
import com.iver.cit.gvsig.fmap.drivers.DriverIOException; |
|
| 76 | 80 |
import com.iver.cit.gvsig.fmap.drivers.FieldDescription; |
| 77 | 81 |
import com.iver.cit.gvsig.fmap.drivers.ILayerDefinition; |
| 78 | 82 |
import com.iver.cit.gvsig.fmap.drivers.LayerDefinition; |
| 79 | 83 |
import com.iver.cit.gvsig.fmap.drivers.SHPLayerDefinition; |
| 80 | 84 |
import com.iver.cit.gvsig.fmap.edition.DefaultRowEdited; |
| 81 | 85 |
import com.iver.cit.gvsig.fmap.edition.EditionException; |
| 86 |
import com.iver.cit.gvsig.fmap.layers.FBitSet; |
|
| 82 | 87 |
import com.iver.cit.gvsig.fmap.layers.FLyrVect; |
| 88 |
import com.iver.cit.gvsig.fmap.operations.CancellableMonitorable; |
|
| 89 |
import com.iver.cit.gvsig.fmap.operations.DefaultCancellableMonitorable; |
|
| 83 | 90 |
import com.iver.cit.gvsig.fmap.operations.strategies.Strategy; |
| 84 | 91 |
import com.iver.cit.gvsig.fmap.operations.strategies.StrategyManager; |
| 85 | 92 |
import com.iver.cit.gvsig.fmap.operations.strategies.VisitException; |
| ... | ... | |
| 88 | 95 |
import com.iver.gvsig.geoprocessing.model.IOneLayerGeoprocess; |
| 89 | 96 |
import com.iver.gvsig.geoprocessing.schemabuilder.FeatureFactory; |
| 90 | 97 |
import com.iver.gvsig.geoprocessing.schemabuilder.XTypes; |
| 98 |
import com.iver.utiles.swing.threads.IMonitorableTask; |
|
| 99 |
|
|
| 91 | 100 |
/** |
| 92 |
* Geoprocess that computes the convex hull of all geometries |
|
| 93 |
* of the input layer.
|
|
| 101 |
* Geoprocess that computes the convex hull of all geometries of the input
|
|
| 102 |
* layer. |
|
| 94 | 103 |
* |
| 95 | 104 |
* @author azabala |
| 96 |
* |
|
| 105 |
*
|
|
| 97 | 106 |
*/ |
| 98 |
public class ConvexHullGeoprocess extends AbstractGeoprocess |
|
| 99 |
implements IOneLayerGeoprocess {
|
|
| 100 |
|
|
| 107 |
public class ConvexHullGeoprocess extends AbstractGeoprocess implements
|
|
| 108 |
IOneLayerGeoprocess {
|
|
| 109 |
|
|
| 101 | 110 |
/** |
| 102 | 111 |
* Schema of the result layer |
| 103 | 112 |
*/ |
| 104 | 113 |
private LayerDefinition resultLayerDefinition; |
| 114 |
|
|
| 105 | 115 |
/** |
| 106 |
* Iterates over geometries computing convex |
|
| 107 |
* hull.
|
|
| 108 |
* TODO Comparative Memory vs Scalable
|
|
| 116 |
* Iterates over geometries computing convex hull.
|
|
| 117 |
* TODO Comparative Memory
|
|
| 118 |
* vs Scalable |
|
| 109 | 119 |
*/ |
| 110 | 120 |
private ScalableConvexHullVisitor visitor; |
| 121 |
|
|
| 111 | 122 |
/** |
| 112 |
* If only consideer selection to compute |
|
| 113 |
* convex hull |
|
| 123 |
* If only consideer selection to compute convex hull |
|
| 114 | 124 |
*/ |
| 115 | 125 |
private boolean convexSelection; |
| 116 |
|
|
| 117 |
|
|
| 118 |
public ConvexHullGeoprocess(){
|
|
| 126 |
|
|
| 127 |
public ConvexHullGeoprocess() {
|
|
| 119 | 128 |
visitor = new ScalableConvexHullVisitor(); |
| 120 | 129 |
} |
| 121 |
|
|
| 122 |
|
|
| 130 |
|
|
| 123 | 131 |
public void setParameters(Map params) throws GeoprocessException {
|
| 124 |
Boolean onlySelection = |
|
| 125 |
(Boolean) params.get("layer_selection");
|
|
| 126 |
if(onlySelection != null) |
|
| 132 |
Boolean onlySelection = (Boolean) params.get("layer_selection");
|
|
| 133 |
if (onlySelection != null) |
|
| 127 | 134 |
convexSelection = onlySelection.booleanValue(); |
| 128 |
|
|
| 135 |
|
|
| 129 | 136 |
} |
| 130 | 137 |
|
| 131 | 138 |
public void checkPreconditions() throws GeoprocessException {
|
| 132 | 139 |
if (firstLayer == null) |
| 133 |
throw new GeoprocessException("Convex Hull con capa de entrada a null");
|
|
| 134 |
if(this.writer == null || |
|
| 135 |
this.schemaManager == null){
|
|
| 136 |
throw new GeoprocessException("Operacion de convex hull sin especificar capa de resultados");
|
|
| 140 |
throw new GeoprocessException( |
|
| 141 |
"Convex Hull con capa de entrada a null"); |
|
| 142 |
if (this.writer == null || this.schemaManager == null) {
|
|
| 143 |
throw new GeoprocessException( |
|
| 144 |
"Operacion de convex hull sin especificar capa de resultados"); |
|
| 137 | 145 |
} |
| 138 | 146 |
|
| 139 | 147 |
} |
| 140 | 148 |
|
| 141 | 149 |
public void process() throws GeoprocessException {
|
| 142 |
Strategy strategy = StrategyManager. |
|
| 143 |
getStrategy(firstLayer); |
|
| 150 |
Strategy strategy = StrategyManager.getStrategy(firstLayer); |
|
| 144 | 151 |
try {
|
| 145 |
if(convexSelection){
|
|
| 146 |
strategy.process(visitor, |
|
| 147 |
firstLayer.getRecordset().getSelection());
|
|
| 148 |
}else{
|
|
| 152 |
if (convexSelection) {
|
|
| 153 |
strategy.process(visitor, firstLayer.getRecordset()
|
|
| 154 |
.getSelection()); |
|
| 155 |
} else {
|
|
| 149 | 156 |
strategy.process(visitor); |
| 150 | 157 |
} |
| 151 |
|
|
| 152 |
IGeometry convexHull = |
|
| 153 |
visitor.getConvexHull(); |
|
| 158 |
|
|
| 159 |
IGeometry convexHull = visitor.getConvexHull(); |
|
| 154 | 160 |
Object[] attrs = new Object[1]; |
| 155 | 161 |
attrs[0] = new Long(0); |
| 156 |
IFeature feature = FeatureFactory.createFeature(attrs, |
|
| 157 |
convexHull, |
|
| 162 |
IFeature feature = FeatureFactory.createFeature(attrs, convexHull, |
|
| 158 | 163 |
resultLayerDefinition); |
| 159 | 164 |
writer.preProcess(); |
| 160 |
DefaultRowEdited editedFeature = new |
|
| 161 |
DefaultRowEdited(feature, |
|
| 162 |
DefaultRowEdited.STATUS_ADDED, 0); |
|
| 165 |
DefaultRowEdited editedFeature = new DefaultRowEdited(feature, |
|
| 166 |
DefaultRowEdited.STATUS_ADDED, 0); |
|
| 163 | 167 |
writer.process(editedFeature); |
| 164 | 168 |
writer.postProcess(); |
| 165 |
|
|
| 169 |
|
|
| 166 | 170 |
} catch (DriverException e) {
|
| 167 |
throw new GeoprocessException("Problemas con el driver calculando el convex hull");
|
|
| 171 |
throw new GeoprocessException( |
|
| 172 |
"Problemas con el driver calculando el convex hull"); |
|
| 168 | 173 |
} catch (VisitException e) {
|
| 169 |
throw new GeoprocessException("Problemas durante el proceso de calculo del convex hull");
|
|
| 170 |
} catch (EditionException e){
|
|
| 171 |
throw new GeoprocessException("Problemas al guardar la capa resultado del convex hull");
|
|
| 174 |
throw new GeoprocessException( |
|
| 175 |
"Problemas durante el proceso de calculo del convex hull"); |
|
| 176 |
} catch (EditionException e) {
|
|
| 177 |
throw new GeoprocessException( |
|
| 178 |
"Problemas al guardar la capa resultado del convex hull"); |
|
| 172 | 179 |
} |
| 173 | 180 |
} |
| 174 | 181 |
|
| 175 | 182 |
public void cancel() {
|
| 176 | 183 |
// TODO Implementar la cancelacion |
| 184 |
//llamar a ISchemaManager.drop() para borrar la capa |
|
| 185 |
//resultado |
|
| 177 | 186 |
|
| 178 | 187 |
} |
| 179 | 188 |
|
| 189 |
|
|
| 180 | 190 |
public ILayerDefinition createLayerDefinition() {
|
| 181 | 191 |
if(resultLayerDefinition == null){
|
| 182 | 192 |
resultLayerDefinition = new SHPLayerDefinition(); |
| ... | ... | |
| 195 | 205 |
this.firstLayer = firstLayer; |
| 196 | 206 |
} |
| 197 | 207 |
|
| 208 |
public IMonitorableTask createTask() {
|
|
| 209 |
try {
|
|
| 210 |
return new ConvexHullMonitorableTask(); |
|
| 211 |
} catch (DriverIOException e) {
|
|
| 212 |
return null; |
|
| 213 |
} |
|
| 214 |
} |
|
| 215 |
|
|
| 216 |
/** |
|
| 217 |
* IMonitorableTask that allows to run convex hull geoprocess in background, |
|
| 218 |
* with cancelation requests. |
|
| 219 |
* |
|
| 220 |
* @author azabala |
|
| 221 |
* |
|
| 222 |
*/ |
|
| 223 |
class ConvexHullMonitorableTask implements IMonitorableTask {
|
|
| 224 |
private CancellableMonitorable cancelMonitor = null; |
|
| 225 |
|
|
| 226 |
// FIXME INTERNACIONALIZAR ESTO |
|
| 227 |
String HULL_MESSAGE = "Computing convex hull:"; |
|
| 228 |
|
|
| 229 |
private boolean finished = false; |
|
| 230 |
|
|
| 231 |
ConvexHullMonitorableTask() throws DriverIOException{
|
|
| 232 |
initialize(); |
|
| 233 |
} |
|
| 234 |
void initialize() throws DriverIOException {
|
|
| 235 |
cancelMonitor = createCancelMonitor(); |
|
| 236 |
} |
|
| 237 |
|
|
| 238 |
private CancellableMonitorable createCancelMonitor() |
|
| 239 |
throws DriverIOException {
|
|
| 240 |
DefaultCancellableMonitorable monitor = new DefaultCancellableMonitorable(); |
|
| 241 |
monitor.setInitialStep(0); |
|
| 242 |
monitor.setDeterminatedProcess(true); |
|
| 243 |
int numSteps = 0; |
|
| 244 |
if (convexSelection) {
|
|
| 245 |
FBitSet selection = firstLayer.getRecordset().getSelection(); |
|
| 246 |
numSteps = selection.cardinality(); |
|
| 247 |
} else {
|
|
| 248 |
numSteps = firstLayer.getSource().getShapeCount(); |
|
| 249 |
} |
|
| 250 |
monitor.setFinalStep(numSteps); |
|
| 251 |
return monitor; |
|
| 252 |
} |
|
| 253 |
|
|
| 254 |
public int getInitialStep() {
|
|
| 255 |
return cancelMonitor.getInitialStep(); |
|
| 256 |
} |
|
| 257 |
|
|
| 258 |
public int getFinishStep() {
|
|
| 259 |
return cancelMonitor.getFinalStep(); |
|
| 260 |
} |
|
| 261 |
|
|
| 262 |
public int getCurrentStep() {
|
|
| 263 |
return cancelMonitor.getCurrentStep(); |
|
| 264 |
} |
|
| 265 |
|
|
| 266 |
public String getStatusMessage() {
|
|
| 267 |
// FIXME Cambiar esto por un mecanismo de eventos, |
|
| 268 |
// de forma que la tarea lo que tenga sea un escuchador |
|
| 269 |
// que cambie el mensaje de estado segun los eventos |
|
| 270 |
// de tareas que se est?n realizando |
|
| 271 |
return "Convex Hull Geoprocess..."; |
|
| 272 |
} |
|
| 273 |
|
|
| 274 |
public String getNote() {
|
|
| 275 |
// FIXME Cambiar esto por un mecanismo de eventos, |
|
| 276 |
// de forma que la tarea lo que tenga sea un escuchador |
|
| 277 |
// que cambie el mensaje de estado segun los eventos |
|
| 278 |
// de tareas que se est?n realizando |
|
| 279 |
return HULL_MESSAGE + |
|
| 280 |
getCurrentStep()+ |
|
| 281 |
" de " + |
|
| 282 |
getFinishStep(); |
|
| 283 |
} |
|
| 284 |
|
|
| 285 |
public void cancel() {
|
|
| 286 |
((DefaultCancellableMonitorable) cancelMonitor).setCanceled(true); |
|
| 287 |
} |
|
| 288 |
|
|
| 289 |
public void run() throws GeoprocessException {
|
|
| 290 |
|
|
| 291 |
Strategy strategy = StrategyManager.getStrategy(firstLayer); |
|
| 292 |
try {
|
|
| 293 |
if (convexSelection) {
|
|
| 294 |
strategy.process(visitor, firstLayer.getRecordset() |
|
| 295 |
.getSelection(), cancelMonitor); |
|
| 296 |
} else {
|
|
| 297 |
strategy.process(visitor, cancelMonitor); |
|
| 298 |
} |
|
| 299 |
|
|
| 300 |
IGeometry convexHull = visitor.getConvexHull(); |
|
| 301 |
Object[] attrs = new Object[1]; |
|
| 302 |
attrs[0] = new Long(0); |
|
| 303 |
IFeature feature = FeatureFactory.createFeature(attrs, |
|
| 304 |
convexHull, resultLayerDefinition); |
|
| 305 |
writer.preProcess(); |
|
| 306 |
DefaultRowEdited editedFeature = new DefaultRowEdited(feature, |
|
| 307 |
DefaultRowEdited.STATUS_ADDED, 0); |
|
| 308 |
writer.process(editedFeature); |
|
| 309 |
writer.postProcess(); |
|
| 310 |
|
|
| 311 |
} catch (DriverException e) {
|
|
| 312 |
throw new GeoprocessException( |
|
| 313 |
"Problemas con el driver calculando el convex hull"); |
|
| 314 |
} catch (VisitException e) {
|
|
| 315 |
throw new GeoprocessException( |
|
| 316 |
"Problemas durante el proceso de calculo del convex hull"); |
|
| 317 |
} catch (EditionException e) {
|
|
| 318 |
throw new GeoprocessException( |
|
| 319 |
"Problemas al guardar la capa resultado del convex hull"); |
|
| 320 |
} |
|
| 321 |
finished = true; |
|
| 322 |
} |
|
| 323 |
|
|
| 324 |
public boolean isDefined() {
|
|
| 325 |
return cancelMonitor.isDeterminatedProcess(); |
|
| 326 |
} |
|
| 327 |
|
|
| 328 |
public boolean isCanceled() {
|
|
| 329 |
return cancelMonitor.isCanceled(); |
|
| 330 |
} |
|
| 331 |
|
|
| 332 |
public boolean isFinished() {
|
|
| 333 |
return finished; |
|
| 334 |
} |
|
| 335 |
|
|
| 336 |
} |
|
| 337 |
|
|
| 198 | 338 |
} |
| 199 |
|
|
Also available in: Unified diff