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	/**

	 * Similar to process, but calls visitWithSymbol in FeatureVisitor.

	 * @param visitor

	 * @param rectangle

	 * @param cancel

	 * @throws DriverException

	 * @throws VisitException

	 */

	public void processWithSymbols(ExtendsFeatureVisitor visitor, Rectangle2D extent, CancellableMonitorable cancel) throws DriverException, VisitException {

		if (visitor==null)

			return;

		/*IGeometry geom = null;

		int index = -1;

		ISymbol symbol = null;

		visitor.visitWithSymbol(geom, index, symbol); // TEST */

		try {

			ReadableVectorial adapter = ((SingleLayer) capa).getSource();

			ICoordTrans ct = getCapa().getCoordTrans();

			//logger.debug("adapter.start()");

			adapter.start();

			//logger.debug("getCapa().getRecordset().start()");

			SelectableDataSource rsSel = ((AlphanumericData) getCapa()).getRecordset();

			if (rsSel != null)

			    rsSel.start();

			int sc = adapter.getShapeCount();

			// TODO: A revisar si es o no conveniente este sistema

			// de comunicaci?n con los drivers.

			DriverAttributes attr = adapter.getDriverAttributes();

			boolean bMustClone = false;

			if (attr != null)

			{

			    if (attr.isLoadedInMemory())

			    {

			        bMustClone = attr.isLoadedInMemory();

			    }

			}

			VectorialLegend l = (VectorialLegend) ((ClassifiableVectorial) capa).getLegend();

            FBitSet bitSet = null;

            if (getCapa() instanceof Selectable){

                Selectable selection = (Selectable) getCapa();

                bitSet = selection.getSelection();

            }

			for (int i = 0; i < sc; i++) {

				if (cancel!=null && cancel.isCanceled()) {

					break;

				}

				IGeometry geom = adapter.getShape(i);

				if (geom == null) {

					continue;

				}

				if (ct != null) {

				    if (bMustClone)

				        geom = geom.cloneGeometry();

					geom.reProject(ct);

				}

				if (extent == null || 

						geom.fastIntersects(extent.getMinX(), extent.getMinY(),

				             extent.getWidth(), extent.getHeight())) {

					ISymbol symbol = l.getSymbol(i);

                    if (symbol ==null)

                        continue;

                    if (bitSet != null)

                        if (bitSet.get(i)) {

    						symbol = symbol.getSymbolForSelection();

    					}

					// send feature for process in visitor

					visitor.visitWithSymbol(geom, i, symbol);

				}

				/* else

				{

				    System.out.println("no pinto id=" + i);

				} */

			}

			//logger.debug("getCapa().getRecordset().stop()");

			if (rsSel != null)

			    rsSel.stop();

			//logger.debug("adapter.stop()");

			adapter.stop();

		} catch (DriverIOException e) {

			throw new DriverException(e);

		} catch (com.hardcode.gdbms.engine.data.driver.DriverException e) {

		    throw new DriverException(e);

		} catch (DriverException e) {

		    throw new DriverException(e);

        }

	}