root / branches / Mobile_Compatible_Hito_1 / libFMap / src / es / prodevelop / gvsig / mobile / fmap / driver / vect / shp / DiskShpDriver.java @ 21606
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2006 Prodevelop and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* http://www.gvsig.gva.es
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*
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* or
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*
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* Prodevelop Integraci?n de Tecnolog?as SL
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* Conde Salvatierra de ?lava , 34-10
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* 46004 Valencia
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* Spain
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*
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* +34 963 510 612
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* +34 963 510 968
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* gis@prodevelop.es
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* http://www.prodevelop.es
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*
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* or
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*
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* Instituto de Rob?tica
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* Apartado de correos 2085
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* 46071 Valencia
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* (Spain)
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*
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* +34 963 543 577
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* jjordan@robotica.uv.es
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* http://robotica.uv.es
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*
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*/
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package es.prodevelop.gvsig.mobile.fmap.driver.vect.shp; |
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import java.awt.geom.Rectangle2D; |
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import java.io.File; |
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import java.io.IOException; |
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import java.util.ArrayList; |
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import java.util.HashMap; |
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import org.apache.log4j.Logger; |
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import es.prodevelop.gvsig.mobile.fmap.core.FMapFastGeometry; |
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import es.prodevelop.gvsig.mobile.fmap.core.FNullGeometry; |
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import es.prodevelop.gvsig.mobile.fmap.core.FShape; |
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import es.prodevelop.gvsig.mobile.fmap.core.GeneralPathX; |
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import es.prodevelop.gvsig.mobile.fmap.core.IGeometry; |
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import es.prodevelop.gvsig.mobile.fmap.core.ShapeFactory; |
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import es.prodevelop.gvsig.mobile.fmap.driver.ITableDefinition; |
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import es.prodevelop.gvsig.mobile.fmap.util.Utils; |
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/**
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* SHP driver via JNI when the file does not have to be loaded into memory.
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*
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* @see es.prodevelop.gvsig.mobile.fmap.driver.vect.shp.ShpReader
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*
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* @author jldominguez
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*/
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public class DiskShpDriver extends MemoryShpDriver { |
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private static Logger logger = Logger.getLogger(DiskShpDriver.class.getName()); |
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private long handler = 0; |
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private int type; |
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private int numReg; |
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private Rectangle2D extent; |
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private File fileShp = null; |
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private HashMap shapesBoxes; |
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/**
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* Closes the file
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*
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* @throws IOException
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*
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* @see com.iver.cit.gvsig.fmap.drivers.VectorialFileDriver#close()
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*/
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public void close() throws IOException { |
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// ShpReader.closeShpFile(handler);
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} |
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/**
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* Opens the file with through JNI functions
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*
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* @param f the file to be opened
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*
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* @see com.iver.cit.gvsig.fmap.drivers.VectorialFileDriver#open(java.io.File)
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*/
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public void open(File f) throws IOException { |
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fileShp = f; |
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handler = ShpReader.openShpFile(f.getCanonicalPath(), false);
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} |
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/**
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* Gets the geometry for an index
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*
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* @param index index of the geometry of interest
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*
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* @return the geometry
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*
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* @throws IOException
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*/
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public IGeometry getShape(int index) throws IOException { |
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double[] shp = ShpReader.getShapeWithBox(handler, index); |
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if (shp == null) return new FNullGeometry(); |
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addBoxToHash(index, shp[0], shp[1], shp[2], shp[3]); |
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FMapFastGeometry resp = null;
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int _type = Math.round((float) shp[4]); |
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int nparts = Math.round((float) shp[5]); |
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int i;
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double[] coords; |
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switch (_type) {
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case SHP.SHPT_POLYGON:
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resp = new FMapFastGeometry(2, true); |
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for (i=0; i<nparts; i++) { |
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coords = getPartSkipBox(shp, i, nparts, 2);
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resp.addPart(coords); |
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} |
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break;
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// -------------------------------------------------------------
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// -------------------------------------------------------------
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case SHP.SHPT_ARC:
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resp = new FMapFastGeometry(2, false); |
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for (i=0; i<nparts; i++) { |
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coords = getPartSkipBox(shp, i, nparts, 2);
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resp.addPart(coords); |
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} |
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break;
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// -------------------------------------------------------------
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// -------------------------------------------------------------
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case SHP.SHPT_ARCZ:
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case SHP.SHPT_ARCM:
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resp = new FMapFastGeometry(3, false); |
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for (i = 0; i < nparts; i++) { |
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coords = getPartSkipBox(shp, i, nparts, 3);
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resp.addPart(coords); |
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} |
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break;
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// -------------------------------------------------------------
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// -------------------------------------------------------------
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case SHP.SHPT_POLYGONZ:
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case SHP.SHPT_POLYGONM:
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resp = new FMapFastGeometry(3, true); |
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for (i = 0; i < nparts; i++) { |
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coords = getPartSkipBox(shp, i, nparts, 3);
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resp.addPart(coords); |
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} |
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break;
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// -------------------------------------------------------------
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// -------------------------------------------------------------
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case SHP.SHPT_POINT:
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resp = new FMapFastGeometry(2, false); |
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coords = getPartSkipBox(shp, 0, 1, 2); |
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resp.addPart(coords); |
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break;
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case SHP.SHPT_MULTIPOINT:
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resp = new FMapFastGeometry(2, false); |
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for (i=0; i<nparts; i++) { |
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coords = getPartSkipBox(shp, i, nparts, 2);
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resp.addPart(coords); |
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} |
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break;
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// -------------------------------------------------------------
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// -------------------------------------------------------------
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case SHP.SHPT_POINTZ:
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case SHP.SHPT_POINTM:
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resp = new FMapFastGeometry(3, false); |
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coords = getPartSkipBox(shp, 0, 1, 3); |
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resp.addPart(coords); |
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break;
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// -------------------------------------------------------------
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// -------------------------------------------------------------
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case SHP.SHPT_MULTIPOINTZ:
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case SHP.SHPT_MULTIPOINTM:
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resp = new FMapFastGeometry(3, false); |
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for (i=0; i<nparts; i++) { |
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coords = getPartSkipBox(shp, i, nparts, 3);
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resp.addPart(coords); |
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} |
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break;
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} |
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try {
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return fastGeometryToFMapGeometry(resp, _type);
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} catch (Exception ex) { |
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logger.debug("fastGeometryToFMapGeometry(resp, _type) DIO EXCEPCION, NULL");
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return null; |
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} |
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} |
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private void addBoxToHash(int index, double minx, double miny, double w, double h) { |
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Rectangle2D rect = new Rectangle2D.Double(minx, miny, w, h); |
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shapesBoxes.put(new Integer(index), rect); |
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} |
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/**
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* @return the number of geometries in this driver
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* @see com.iver.cit.gvsig.fmap.drivers.VectorialFileDriver#getShapeCount()
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*/
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public int getShapeCount() { |
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return numReg;
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} |
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/**
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* @return the shape type of the geometries of this driver
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*
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* @see com.iver.cit.gvsig.fmap.drivers.VectorialDriver#getShapeType()
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*/
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public int getShapeType() { |
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int auxType = 0; |
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switch (type) {
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case SHP.SHPT_POINT:
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case SHP.SHPT_POINTZ:
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case SHP.SHPT_POINTM:
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auxType = auxType | FShape.POINT; |
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break;
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case SHP.SHPT_ARC:
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case SHP.SHPT_ARCZ:
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case SHP.SHPT_ARCM:
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auxType = auxType | FShape.LINE; |
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break;
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case SHP.SHPT_POLYGON:
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case SHP.SHPT_POLYGONZ:
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case SHP.SHPT_POLYGONM:
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auxType = auxType | FShape.POLYGON; |
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break;
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case SHP.SHPT_MULTIPOINT:
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case SHP.SHPT_MULTIPOINTZ:
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case SHP.SHPT_MULTIPOINTM:
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auxType = auxType | FShape.MULTIPOINT; |
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break;
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} |
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return auxType;
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} |
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/**
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* Initializes the driver
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*
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* @see com.iver.cit.gvsig.fmap.drivers.VectorialFileDriver#initialize()
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*/
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public void initialize() throws IOException { |
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double[] meta = ShpReader.getShpMetadata(handler); |
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shapesBoxes = new HashMap(); |
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// [tipo, ext_min_x, ext_min_y, ext_w, ext_h, numReg]
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if (meta == null) { |
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// error
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logger.error(Utils.time() + "No se pudo obtener metadatos de archivo SHP: " + fileShp.getName());
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type = SHP.SHPT_NULL; |
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extent = new Rectangle2D.Double(0, 0, 1, 1); |
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numReg = 0;
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} else {
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// ok
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type = Math.round((float) meta[0]); |
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extent = new Rectangle2D.Double(meta[1], meta[2], meta[3], meta[4]); |
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numReg = Math.round((float) meta[5]); |
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} |
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} |
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/**
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* Gets the extent of the geometries of this driver
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*
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* @see com.iver.cit.gvsig.fmap.drivers.VectorialFileDriver#getFullExtent()
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*/
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public Rectangle2D getFullExtent() throws IOException { |
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return extent;
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.drivers.VectorialFileDriver#accept(java.io.File)
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*/
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public boolean accept(File f) { |
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return (f.getName().toUpperCase().endsWith("SHP")); |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.drivers.VectorialFileDriver#getDataFile(java.io.File)
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*/
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public File getDataFile(File f) { |
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String str = f.getAbsolutePath();
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return new File(str.substring(0, str.length() - 3) + "dbf"); |
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} |
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/**
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* Gets the SHX associated with the given SHP file
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*
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* @param f a file objects that points to a SHP file
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* @return the associated SHX file
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*
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*/
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public File getShxFile(File f) { |
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String str = f.getAbsolutePath();
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return new File(str.substring(0, str.length() - 3) + "shx"); |
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} |
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/**
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* Gets the shape type of the geometry of interest. Currently redirects to
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* <code>getShapeType()</code>
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*
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* @param index the index of the geometry of interest
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* @return the type of the geometry
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*/
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public int getShapeType(int index) { |
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return getShapeType();
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} |
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/**
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*
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* @return the main SHP file
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*/
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public File getFile() { |
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return fileShp;
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} |
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/**
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* Reloads this driver (reopens and initializes)
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*/
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public void reload() throws IOException { |
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open(fileShp); |
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initialize(); |
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} |
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/**
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* Initializes the driver with the given table definition. Currently unused.
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*
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* @param layerDef the table definitiion to be used
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*/
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public void initialize(ITableDefinition layerDef) { |
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} |
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/**
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* @return Whether the driver is writable. Currently unused.
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*
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*/
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public boolean isWritable() { |
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return fileShp.canWrite();
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} |
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/**
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* @return whether the associated table can be altered. Returns false. Currently
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* unused.
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*/
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public boolean canAlterTable() { |
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return false; |
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} |
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/**
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* Currently unused.
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*/
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public boolean isWriteAll() { |
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return true; |
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} |
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/**
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*
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* @return the main SHP file handler
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*/
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public long getHandler() { |
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return handler;
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} |
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/**
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* Sets the main file handler
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* @param h the new handler
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*/
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public void setHandler(long h) { |
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handler = h; |
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} |
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/**
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* Gets the extent of one geometry of this driver.
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*
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* @param index the index of the geometry of interest
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* @return the bounding box of the geometry
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*/
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public Rectangle2D getShapeBounds(int index) throws IOException { |
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Integer _index = new Integer(index); |
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Rectangle2D rect = (Rectangle2D) shapesBoxes.get(_index); |
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if (rect == null) { |
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double[] bounds = ShpReader.getShapeBounds(handler, index); |
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rect = new Rectangle2D.Double(bounds[0], bounds[1], bounds[2], bounds[3]); |
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shapesBoxes.put(_index, rect); |
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} |
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return rect;
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} |
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private double[] getPartSkipBox(double[] shp, int part, int n_parts, int dim) { |
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int part_start = dim * Math.round((float) shp[part + 6]); |
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int part_size = dim * Math.round((float) shp[part + 7]) - part_start; |
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double[] resp = new double[part_size]; |
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for (int i=0; i<part_size; i++) { |
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resp[i] = shp[7 + n_parts + part_start + i];
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} |
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return resp;
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} |
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private IGeometry fastGeometryToFMapGeometry(FMapFastGeometry fg, int type) throws Exception { |
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if (fg == null) return null; |
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IGeometry ig = null;
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GeneralPathX elShape; |
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int numParts, i, v;
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double[] part; |
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double[] zc; |
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ArrayList zcoords = new ArrayList(); |
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double[] pointx; |
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double[] pointy; |
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double[] pointz; |
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switch (type) {
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case SHP.SHPT_POLYGON:
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numParts = fg.getNumberOfParts(); |
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elShape = new GeneralPathX(GeneralPathX.WIND_EVEN_ODD, fg.getPart(0).length); |
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for (i = 0; i < numParts; i++) { |
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part = fg.getPart(i); |
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int part_size = part.length / 2; |
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elShape.moveTo(part[0], part[1]); |
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for (v = 1; v < part_size; v++) { |
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elShape.lineTo(part[2 * v], part[2 * v + 1]); |
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} |
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} |
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zc = getDoubleArray(zcoords); |
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ig = ShapeFactory.createPolygon2D(elShape); |
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break;
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|
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// -------------------------------------------------------------
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// -------------------------------------------------------------
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case SHP.SHPT_ARC:
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numParts = fg.getNumberOfParts(); |
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elShape = new GeneralPathX(GeneralPathX.WIND_EVEN_ODD, fg.getPart(0).length); |
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for (i = 0; i < numParts; i++) { |
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part = fg.getPart(i); |
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int part_size = part.length / 2; |
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elShape.moveTo(part[0], part[1]); |
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for (v = 1; v < part_size; v++) { |
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elShape.lineTo(part[2 * v], part[2 * v + 1]); |
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} |
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} |
| 509 |
ig = ShapeFactory.createPolyline2D(elShape); |
| 510 |
break;
|
| 511 |
|
| 512 |
// -------------------------------------------------------------
|
| 513 |
// -------------------------------------------------------------
|
| 514 |
|
| 515 |
case SHP.SHPT_ARCZ:
|
| 516 |
case SHP.SHPT_ARCM:
|
| 517 |
numParts = fg.getNumberOfParts(); |
| 518 |
elShape = new GeneralPathX(GeneralPathX.WIND_EVEN_ODD, fg.getPart(0).length); |
| 519 |
|
| 520 |
for (i = 0; i < numParts; i++) { |
| 521 |
part = fg.getPart(i); |
| 522 |
int part_size = part.length / 3; |
| 523 |
elShape.moveTo(part[0], part[1]); |
| 524 |
zcoords.add(new Double(part[2])); |
| 525 |
for (v = 1; v < part_size; v++) { |
| 526 |
elShape.lineTo(part[3 * v], part[3 * v + 1]); |
| 527 |
zcoords.add(new Double(part[3 * v + 2])); |
| 528 |
} |
| 529 |
} |
| 530 |
zc = getDoubleArray(zcoords); |
| 531 |
ig = ShapeFactory.createPolyline3D(elShape, zc); |
| 532 |
break;
|
| 533 |
|
| 534 |
// -------------------------------------------------------------
|
| 535 |
// -------------------------------------------------------------
|
| 536 |
|
| 537 |
case SHP.SHPT_POLYGONZ:
|
| 538 |
case SHP.SHPT_POLYGONM:
|
| 539 |
numParts = fg.getNumberOfParts(); |
| 540 |
elShape = new GeneralPathX(GeneralPathX.WIND_EVEN_ODD, fg.getPart(0).length); |
| 541 |
|
| 542 |
for (i = 0; i < numParts; i++) { |
| 543 |
part = fg.getPart(i); |
| 544 |
int part_size = part.length / 3; |
| 545 |
elShape.moveTo(part[0], part[1]); |
| 546 |
zcoords.add(new Double(part[2])); |
| 547 |
for (v = 1; v < part_size; v++) { |
| 548 |
elShape.lineTo(part[3 * v], part[3 * v + 1]); |
| 549 |
zcoords.add(new Double(part[3 * v + 2])); |
| 550 |
} |
| 551 |
} |
| 552 |
zc = getDoubleArray(zcoords); |
| 553 |
ig = ShapeFactory.createPolygon3D(elShape, zc); |
| 554 |
break;
|
| 555 |
|
| 556 |
// -------------------------------------------------------------
|
| 557 |
// -------------------------------------------------------------
|
| 558 |
|
| 559 |
case SHP.SHPT_POINT:
|
| 560 |
part = fg.getPart(0);
|
| 561 |
ig = ShapeFactory.createPoint2D(part[0], part[1]); |
| 562 |
break;
|
| 563 |
|
| 564 |
// -------------------------------------------------------------
|
| 565 |
// -------------------------------------------------------------
|
| 566 |
|
| 567 |
case SHP.SHPT_MULTIPOINT:
|
| 568 |
numParts = fg.getNumberOfParts(); |
| 569 |
pointx = new double[numParts]; |
| 570 |
pointy = new double[numParts]; |
| 571 |
|
| 572 |
for (i = 0; i < numParts; i++) { |
| 573 |
part = fg.getPart(i); |
| 574 |
pointx[i] = part[0];
|
| 575 |
pointy[i] = part[1];
|
| 576 |
} |
| 577 |
ig = ShapeFactory.createMultipoint2D(pointx, pointy); |
| 578 |
break;
|
| 579 |
|
| 580 |
// -------------------------------------------------------------
|
| 581 |
// -------------------------------------------------------------
|
| 582 |
|
| 583 |
case SHP.SHPT_POINTZ:
|
| 584 |
case SHP.SHPT_POINTM:
|
| 585 |
part = fg.getPart(0);
|
| 586 |
ig = ShapeFactory.createPoint3D(part[0], part[1], part[2]); |
| 587 |
break;
|
| 588 |
|
| 589 |
// -------------------------------------------------------------
|
| 590 |
// -------------------------------------------------------------
|
| 591 |
|
| 592 |
case SHP.SHPT_MULTIPOINTZ:
|
| 593 |
case SHP.SHPT_MULTIPOINTM:
|
| 594 |
numParts = fg.getNumberOfParts(); |
| 595 |
pointx = new double[numParts]; |
| 596 |
pointy = new double[numParts]; |
| 597 |
pointz = new double[numParts]; |
| 598 |
|
| 599 |
for (i = 0; i < numParts; i++) { |
| 600 |
part = fg.getPart(i); |
| 601 |
pointx[i] = part[0];
|
| 602 |
pointy[i] = part[1];
|
| 603 |
pointz[i] = part[2];
|
| 604 |
} |
| 605 |
ig = ShapeFactory.createMultipoint3D(pointx, pointy, pointz); |
| 606 |
break;
|
| 607 |
} |
| 608 |
|
| 609 |
return ig;
|
| 610 |
} |
| 611 |
|
| 612 |
private double[] getDoubleArray(ArrayList zcoords) { |
| 613 |
int size = zcoords.size();
|
| 614 |
double[] resp = new double[size]; |
| 615 |
for (int i=0; i<size; i++) resp[i] = ((Double) zcoords.get(i)).doubleValue(); |
| 616 |
return resp;
|
| 617 |
} |
| 618 |
|
| 619 |
/**
|
| 620 |
* Gets the indices of the geometries intersecting the given rectangle
|
| 621 |
*
|
| 622 |
* @param rect the rectangle of interest
|
| 623 |
* @param max the maximum number of indices to be returned
|
| 624 |
*/
|
| 625 |
public int[] getIntersectingIndices(Rectangle2D rect, int max) throws IOException { |
| 626 |
|
| 627 |
ArrayList _resp = new ArrayList(); |
| 628 |
for (int i=0; i<numReg; i++) { |
| 629 |
Integer ind_obj = new Integer(i); |
| 630 |
Rectangle2D item_bb = (Rectangle2D) shapesBoxes.get(ind_obj); |
| 631 |
if (Utils.rectanglesItersect(item_bb, rect)) {
|
| 632 |
IGeometry ig = getShape(i); |
| 633 |
if (ig.getGeometryType() == FShape.POINT || ig.intersects(rect)) {
|
| 634 |
_resp.add(new Integer(i)); |
| 635 |
if (_resp.size() == max) {
|
| 636 |
break;
|
| 637 |
} |
| 638 |
} |
| 639 |
} |
| 640 |
} |
| 641 |
int size = _resp.size();
|
| 642 |
int[] resp = new int[size]; |
| 643 |
for (int i=0; i<size; i++) resp[i] = ((Integer) _resp.get(i)).intValue(); |
| 644 |
return resp;
|
| 645 |
} |
| 646 |
|
| 647 |
|
| 648 |
} |