/trunk/libraries/libGPE-KML/src/org/gvsig/gpe/kml/parser/v21/coordinates/LatLonBoxIterator.java - Application: gvSIG desktop - gvSIG

svn-gvsig-desktop / trunk / libraries / libGPE-KML / src / org / gvsig / gpe / kml / parser / v21 / coordinates / LatLonBoxIterator.java @ 19680

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       package org.gvsig.gpe.kml.parser.v21.coordinates;
       import java.io.IOException;
       import org.gvsig.gpe.kml.parser.GPEDeafultKmlParser;
       import org.gvsig.gpe.kml.utils.KmlTags;
       import org.gvsig.gpe.xml.stream.XmlStreamException;
       import org.gvsig.gpe.xml.stream.IXmlStreamReader;
       /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
+       *
        * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
+       *
        * This program is free software; you can redistribute it and/or
        * modify it under the terms of the GNU General Public License
        * as published by the Free Software Foundation; either version 2
        * of the License, or (at your option) any later version.
+       *
        * This program is distributed in the hope that it will be useful,
        * but WITHOUT ANY WARRANTY; without even the implied warranty of
        * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        * GNU General Public License for more details.
+       *
        * You should have received a copy of the GNU General Public License
        * along with this program; if not, write to the Free Software
        * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.
+       *
        * For more information, contact:
+       *
        *  Generalitat Valenciana
        *   Conselleria d'Infraestructures i Transport
        *   Av. Blasco Ib??ez, 50
        *   46010 VALENCIA
        *   SPAIN
+       *
        *      +34 963862235
        *   gvsig@gva.es
        *      www.gvsig.gva.es
+       *
        *    or
+       *
        *   IVER T.I. S.A
        *   Salamanca 50
        *   46005 Valencia
        *   Spain
+       *
        *   +34 963163400
        *   dac@iver.es
        */
       /* CVS MESSAGES:
+       *
        * $Id:LatLonBoxBinding.java 357 2008-01-09 17:50:08Z jpiera $
        * $Log$
        * Revision 1.1  2007/05/11 07:06:29  jorpiell
        * Refactoring of some package names
+       *
        * Revision 1.1  2007/05/09 08:36:24  jorpiell
        * Add the bbox to the layer
+       *
+       *
        */
       /**
        * This class parses a LatLonBox tag. Example:
        * <p>
        * <pre>
        * <code>
        * &lt;LatLonAltBox&gt;
        * &lt;north&gt;43.374&lt;/north&gt;
        * &lt;south&gt;42.983&lt;/south&gt;
        * &lt;east&gt;-0.335&lt;/east&gt;
        * &lt;west&gt;-1.423&lt;/west&gt;
        * &lt;rotation&gt;39.37878630116985&lt;/rotation&gt;
        * &lt;/LatLonAltBox&gt;
        * </code>
        * </pre>
        * </p>
        * @author Jorge Piera LLodr? (jorge.piera@iver.es)
        * @see http://code.google.com/apis/kml/documentation/kml_tags_21.html#latlonbox
        */
       public class LatLonBoxIterator extends KmlCoodinatesIterator{
               double[] min = null;
               double[] max = null;
               int iterations = 0;
               /**
                * It parses the LatLonAltBox tag
                * @param parser
                * The XML parser
                * @param handler
                * The GPE parser that contains the content handler and
                * the error handler
                * @return
                * A Bounding box
                * @throws IOException
                * @throws XmlStreamException
                */
               public  Object parse(IXmlStreamReader parser,GPEDeafultKmlParser handler) throws XmlStreamException, IOException {
                       boolean endFeature = false;
                       int currentTag;
                       Object bbox = null;
                       min = new double[3];
                       max = new double[3];
                       double rotation;
                       iterations = 0;
                       dimension = 2;
                       String id = handler.getProfile().getGeometryBinding().getID(parser, handler);
                       String tag = parser.getName();
                       currentTag = parser.getEventType();
                       while (!endFeature){
                               switch(currentTag){
                               case IXmlStreamReader.START_TAG:
                                       if (tag.compareTo(KmlTags.NORTH) == 0){
                                               parser.next();
                                               max[1] = handler.getProfile().getDoubleBinding().parse(parser.getText());
                                       }else if (tag.compareTo(KmlTags.SOUTH) == 0){
                                               parser.next();
                                               min[1] = handler.getProfile().getDoubleBinding().parse(parser.getText());
                                       }else if (tag.compareTo(KmlTags.EAST) == 0){
                                               parser.next();
                                               max[0] = handler.getProfile().getDoubleBinding().parse(parser.getText());
                                       }else if (tag.compareTo(KmlTags.WEST) == 0){
                                               parser.next();
                                               min[0] = handler.getProfile().getDoubleBinding().parse(parser.getText());
                                       }else if (tag.compareTo(KmlTags.ROTATION) == 0){
                                               parser.next();
                                               rotation = handler.getProfile().getDoubleBinding().parse(parser.getText());
+                                      }
                                       break;
                               case IXmlStreamReader.END_TAG:
                                       if (tag.compareTo(KmlTags.LATLONBOX) == 0){
                                               endFeature = true;
                                               bbox = handler.getContentHandler().startBbox(id, this, KmlTags.DEFAULT_SRS);
                                               handler.getContentHandler().endBbox(bbox);
+                                      }
                                       break;
                               case IXmlStreamReader.TEXT:
                                       break;
+                              }
                               if (!endFeature){
                                       currentTag = parser.next();
                                       tag = parser.getName();
+                              }
+                      }
                       return bbox;
+              }
               /*
                * (non-Javadoc)
                * @see org.gvsig.gpe.parser.ICoordinateIterator#hasNext()
                */
               public boolean hasNext() throws IOException {
                       if (iterations < 2){
                               return true;
+                      }
                       return false;
+              }
               /*
                * (non-Javadoc)
                * @see org.gvsig.gpe.parser.ICoordinateIterator#next(double[])
                */
               public void next(double[] buffer) throws IOException {
                       if (iterations == 0){
                               for (int i=0 ; i<buffer.length ; i++){
                                       buffer[i] = min[i];
+                              }
                               iterations = 1;
+                      }
                       if (iterations == 1){
                               for (int i=0 ; i<buffer.length ; i++){
                                       buffer[i] = max[i];
+                              }
                               iterations = 2;
+                      }
+              }
+      }