svn-gvsig-desktop / trunk / libraries / libFMap / src / com / iver / cit / gvsig / fmap / drivers / shp / IndexedShpDriver.java @ 3557
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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) 2004 IVER T.I. 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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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package com.iver.cit.gvsig.fmap.drivers.shp; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.IOException; |
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import java.nio.ByteBuffer; |
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import java.nio.ByteOrder; |
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import java.nio.channels.FileChannel; |
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import org.apache.log4j.Logger; |
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import com.iver.cit.gvsig.fmap.core.FShape; |
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import com.iver.cit.gvsig.fmap.core.GeneralPathX; |
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import com.iver.cit.gvsig.fmap.core.IGeometry; |
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import com.iver.cit.gvsig.fmap.core.ShapeFactory; |
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import com.iver.cit.gvsig.fmap.drivers.BoundedShapes; |
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import com.iver.cit.gvsig.fmap.drivers.DriverAttributes; |
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import com.iver.cit.gvsig.fmap.drivers.ExternalData; |
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import com.iver.cit.gvsig.fmap.drivers.VectorialFileDriver; |
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import com.iver.utiles.bigfile.BigByteBuffer; |
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import com.iver.utiles.bigfile.BigByteBuffer2; |
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/**
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* Driver del formato SHP.
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*
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* @author Francisco Jos? Pe?arrubia
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*/
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public class IndexedShpDriver implements VectorialFileDriver, BoundedShapes, |
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ExternalData { |
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private static Logger logger = Logger.getLogger(IndexedShpDriver.class.getName()); |
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private File file; |
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private BigByteBuffer2 bb;
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private FileChannel channel; |
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private FileInputStream fin; |
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private int type; |
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// private long[] m_posShapes;
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private int numReg; |
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private Rectangle2D extent; |
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private File shxFile; |
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private ByteBuffer bbShx; |
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private FileChannel channelShx; |
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private FileInputStream finShx; |
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/**
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* Cierra el fichero.
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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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IOException ret = null; |
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try {
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channel.close(); |
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channelShx.close(); |
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} catch (IOException e) { |
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ret = e; |
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} finally {
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try {
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fin.close(); |
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} catch (IOException e1) { |
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ret = e1; |
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} |
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} |
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if (ret != null) { |
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throw ret;
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} |
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else // Si todo ha ido bien, preparamos para liberar memoria. |
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{ |
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bb = null;
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bbShx = null;
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} |
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} |
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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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file = f; |
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fin = new FileInputStream(f); |
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// Open the file and then get a channel from the stream
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channel = fin.getChannel(); |
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long size = channel.size();
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// Get the file's size and then map it into memory
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// bb = channel.map(FileChannel.MapMode.READ_ONLY, 0, size);
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bb = new BigByteBuffer2(channel, FileChannel.MapMode.READ_ONLY); |
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finShx = new FileInputStream(getShxFile(f)); |
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// Open the file and then get a channel from the stream
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channelShx = finShx.getChannel(); |
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long sizeShx = channelShx.size();
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// Get the file's size and then map it into memory
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// bb = channel.map(FileChannel.MapMode.READ_ONLY, 0, size);
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bbShx = channelShx.map(FileChannel.MapMode.READ_ONLY, 0, sizeShx); |
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bbShx.order(ByteOrder.BIG_ENDIAN);
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} |
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/**
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* DOCUMENT ME!
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*
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* @param index DOCUMENT ME!
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*
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* @return DOCUMENT ME!
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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#getShape(int)
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*/
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/* public FShape getShapeByID(int ID) {
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Point2D.Double p = new Point2D.Double();
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Point2D.Double pAnt = null;
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int numParts;
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int numPoints;
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int i;
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int j;
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int numReg;
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int numeroPuntos;
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int hasta;
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int desde;
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Rectangle2D.Double BoundingBox = new Rectangle2D.Double();
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SHPShape shapeShp=null;
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FShape resulShape = null;
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try {
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bb.position(m_posShapes[ID]);
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bb.order(ByteOrder.LITTLE_ENDIAN);
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int tipoShape = bb.getInt();
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m_shapeType = tipoShape;
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// retrieve that shape.
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// tempRecord.setShape(readShape(tempShapeType, tempContentLength, in));
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if (tipoShape == FConstant.SHAPE_TYPE_POINT) {
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p = readPoint(bb);
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resulShape = new FShape(new FPoint(p.getX(),p.getY()),FConstant.SHAPE_TYPE_POINT);
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//Comprobaci?n punto.
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//System.err.println("p.x = "+p.x);
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//System.err.println("p.y = "+p.y);
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} else if ((tipoShape == FConstant.SHAPE_TYPE_POLYLINE) ||
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(tipoShape == FConstant.SHAPE_TYPE_POLYGON)) {
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// BoundingBox
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BoundingBox = readRectangle(bb);
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numParts = bb.getInt();
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numPoints = bb.getInt();
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// part indexes.
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// Geometry geom = GeometryFactory.toGeometryArray();
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GeneralPathX elShape = new GeneralPathX(GeneralPathX.WIND_EVEN_ODD,
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numPoints);
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int[] tempParts = new int[numParts];
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for (i = 0; i < numParts; i++) {
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tempParts[i] = bb.getInt();
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}
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j = 0;
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///Line2D.Double line2D;
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FPoint[] points=new FPoint[numPoints];
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for (i = 0; i < numPoints; i++) {
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p=readPoint(bb);
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points[i] = new FPoint(p.x,p.y);
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// System.out.println("x= " + p.x + " y=" + p.y);
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// System.out.println("x= " + (float) p.x + " y=" + (float) p.y);
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if (i == tempParts[j]) {
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elShape.moveTo(p.x, p.y);
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if (j < (numParts - 1)) {
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j++;
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}
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} else {
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elShape.lineTo(p.x, p.y);
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}
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}
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//FGeometry pol=new FPolyLine(points,tempParts,BoundingBox);
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resulShape = new FShape(tipoShape,elShape);
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} else if (tipoShape == FConstant.SHAPE_TYPE_MULTIPOINT) {
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// BoundingBox
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BoundingBox = readRectangle(bb);
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numPoints = bb.getInt();
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FPoint[] tempPoints = new FPoint[numPoints];
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for (i = 0; i < numPoints; i++) {
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Point2D p2=readPoint(bb);
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tempPoints[i] = new FPoint(p2.getX(),p2.getY(),0);
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}
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FMultiPoint multipoint = new FMultiPoint(tempPoints,BoundingBox);
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resulShape = new FShape(multipoint,tipoShape);
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} else if (tipoShape == FConstant.SHAPE_TYPE_POINTZ) {
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FPoint p3d = new FPoint();
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p3d.read(bb);
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resulShape = new FShape(p3d,tipoShape);
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} else if ((tipoShape == FConstant.SHAPE_TYPE_POLYLINEZ) ||
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(tipoShape == FConstant.SHAPE_TYPE_POLYGONZ)) {
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// BoundingBox
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BoundingBox = readRectangle(bb);
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numParts = bb.getInt();
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numPoints = bb.getInt();
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// part indexes.
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// Geometry geom = GeometryFactory.toGeometryArray();
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GeneralPathX elShape = new GeneralPathX(GeneralPathX.WIND_EVEN_ODD,
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numPoints);
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int[] tempParts = new int[numParts];
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for (i = 0; i < numParts; i++) {
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tempParts[i] = bb.getInt();
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}
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j = 0;
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//Line2D.Double line2D;
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FPoint[] points=new FPoint[numPoints];
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for (i = 0; i < numPoints; i++) {
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p = readPoint(bb);
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points[i]=new FPoint(p.x,p.y);
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if (i == tempParts[j]) {
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elShape.moveTo(p.x, p.y);
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if (j < (numParts - 1)) {
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j++;
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}
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} else {
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elShape.lineTo(p.x, p.y);
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}
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}
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double[] boxZ = new double[2];
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boxZ[0] = bb.getDouble();
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boxZ[1] = bb.getDouble();
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double[] pZ = new double[numPoints];
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for (i = 0; i < numPoints; i++) {
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pZ[i] = bb.getDouble();
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}
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//FGeometry pol=new FPolyLine(points,tempParts,BoundingBox);
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resulShape = new FShape(tipoShape, elShape, pZ);
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} else if (tipoShape == FConstant.SHAPE_TYPE_MULTIPOINTZ) {
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// BoundingBox
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BoundingBox = readRectangle(bb);
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numPoints = bb.getInt();
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FPoint[] tempPoints3D = new FPoint[numPoints];
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for (i = 0; i < numPoints; i++) {
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tempPoints3D[i] = new FPoint();
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tempPoints3D[i].read(bb);
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}
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FMultiPoint multipoint3D = new FMultiPoint(tempPoints3D,BoundingBox);
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resulShape = new FShape(multipoint3D,tipoShape);
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}
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} catch (Exception e) {
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System.err.println("Fallo en getShapeByID. ID=" + ID +
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" m_posShapes[ID]=" + m_posShapes[ID]);
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System.err.println("getShapeByID: " + e.getMessage());
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e.printStackTrace();
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}
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return resulShape;
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}
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*/
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/**
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* Devuelve la geometria a partir de un ?ndice.
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*
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* @param index DOCUMENT ME!
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*
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* @return DOCUMENT ME!
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*
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* @throws IOException DOCUMENT ME!
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*/
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public IGeometry getShape(int index) throws IOException { |
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Point2D.Double p = new Point2D.Double(); |
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Point2D.Double pAnt = null; |
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int numParts;
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int numPoints;
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int i;
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int j;
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int numReg;
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int numeroPuntos;
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int hasta;
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int desde;
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int shapeType;
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//Rectangle2D.Double BoundingBox;
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// if (m_posShapes[index] == 0)
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// bb.position(m_posShapes[index]);
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bb.position(getPositionForRecord(index)); |
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bb.order(ByteOrder.LITTLE_ENDIAN);
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///bb.position(bb.position()+4);
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shapeType = bb.getInt(); |
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//el shape tal con tema tal y n?mro tal es null
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if (shapeType==SHP.NULL){
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logger.info("El shape ="+index+ " del tema ="+this.toString()+" es null"); |
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return null; |
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} |
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// retrieve that shape.
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// tempRecord.setShape(readShape(tempShapeType, tempContentLength, in));
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switch (type) {
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case (SHP.POINT2D):
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p = readPoint(bb); |
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return ShapeFactory.createPoint2D(p.getX(), p.getY());
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case (SHP.POLYLINE2D):
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//BoundingBox = readRectangle(bb);
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//bb.getDouble();
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//bb.getDouble();
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//bb.getDouble();
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//bb.getDouble();
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bb.position(bb.position() + 32);
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numParts = bb.getInt(); |
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numPoints = bb.getInt(); |
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// part indexes.
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// Geometry geom = GeometryFactory.toGeometryArray();
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GeneralPathX elShape = new GeneralPathX(GeneralPathX.WIND_EVEN_ODD,
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numPoints); |
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int[] tempParts = new int[numParts]; |
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for (i = 0; i < numParts; i++) { |
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tempParts[i] = bb.getInt(); |
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} |
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j = 0;
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for (i = 0; i < numPoints; i++) { |
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p = readPoint(bb); |
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if (i == tempParts[j]) {
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elShape.moveTo(p.x, p.y); |
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if (j < (numParts - 1)) { |
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j++; |
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} |
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} else {
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elShape.lineTo(p.x, p.y); |
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} |
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} |
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return ShapeFactory.createPolyline2D(elShape);
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case (SHP.POLYGON2D):
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// BoundingBox = readRectangle(bb);
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bb.getDouble(); |
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bb.getDouble(); |
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bb.getDouble(); |
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bb.getDouble(); |
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numParts = bb.getInt(); |
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numPoints = bb.getInt(); |
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// part indexes.
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// Geometry geom = GeometryFactory.toGeometryArray();
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elShape = new GeneralPathX(GeneralPathX.WIND_EVEN_ODD, numPoints);
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tempParts = new int[numParts]; |
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for (i = 0; i < numParts; i++) { |
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tempParts[i] = bb.getInt(); |
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} |
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j = 0;
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for (i = 0; i < numPoints; i++) { |
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p = readPoint(bb); |
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if (i == tempParts[j]) {
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elShape.moveTo(p.x, p.y); |
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if (j < (numParts - 1)) { |
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j++; |
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} |
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} else {
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elShape.lineTo(p.x, p.y); |
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} |
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} |
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return ShapeFactory.createPolygon2D(elShape);
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case (SHP.POINT3D):
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double x = bb.getDouble();
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double y = bb.getDouble();
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double z = bb.getDouble();
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return ShapeFactory.createPoint3D(x, y, z);
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case (SHP.POLYLINE3D):
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bb.position(bb.position() + 32);
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numParts = bb.getInt(); |
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numPoints = bb.getInt(); |
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elShape = new GeneralPathX(GeneralPathX.WIND_EVEN_ODD, numPoints);
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tempParts = new int[numParts]; |
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for (i = 0; i < numParts; i++) { |
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tempParts[i] = bb.getInt(); |
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} |
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j = 0;
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for (i = 0; i < numPoints; i++) { |
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p = readPoint(bb); |
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if (i == tempParts[j]) {
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elShape.moveTo(p.x, p.y); |
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if (j < (numParts - 1)) { |
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j++; |
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} |
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} else {
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elShape.lineTo(p.x, p.y); |
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} |
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} |
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double[] boxZ = new double[2]; |
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boxZ[0] = bb.getDouble();
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boxZ[1] = bb.getDouble();
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double[] pZ = new double[numPoints]; |
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for (i = 0; i < numPoints; i++) { |
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pZ[i] = bb.getDouble(); |
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} |
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return ShapeFactory.createPolyline3D(elShape, pZ);
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case (SHP.POLYGON3D):
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bb.position(bb.position() + 32);
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numParts = bb.getInt(); |
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numPoints = bb.getInt(); |
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elShape = new GeneralPathX(GeneralPathX.WIND_EVEN_ODD, numPoints);
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tempParts = new int[numParts]; |
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for (i = 0; i < numParts; i++) { |
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tempParts[i] = bb.getInt(); |
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} |
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j = 0;
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for (i = 0; i < numPoints; i++) { |
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p = readPoint(bb); |
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if (i == tempParts[j]) {
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elShape.moveTo(p.x, p.y); |
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if (j < (numParts - 1)) { |
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j++; |
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} |
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} else {
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elShape.lineTo(p.x, p.y); |
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} |
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} |
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|
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double[] boxpoZ = new double[2]; |
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boxpoZ[0] = bb.getDouble();
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boxpoZ[1] = bb.getDouble();
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|
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double[] poZ = new double[numPoints]; |
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|
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for (i = 0; i < numPoints; i++) { |
510 |
poZ[i] = bb.getDouble(); |
511 |
} |
512 |
|
513 |
return ShapeFactory.createPolygon3D(elShape, poZ);
|
514 |
|
515 |
case (SHP.MULTIPOINT2D):
|
516 |
bb.position(bb.position() + 32);
|
517 |
numPoints = bb.getInt(); |
518 |
|
519 |
double[] tempX = new double[numPoints]; |
520 |
double[] tempY = new double[numPoints]; |
521 |
|
522 |
for (i = 0; i < numPoints; i++) { |
523 |
tempX[i] = bb.getDouble(); |
524 |
tempY[i] = bb.getDouble(); |
525 |
} |
526 |
|
527 |
return ShapeFactory.createMultipoint2D(tempX, tempY);
|
528 |
|
529 |
case (SHP.MULTIPOINT3D):
|
530 |
bb.position(bb.position() + 32);
|
531 |
numPoints = bb.getInt(); |
532 |
|
533 |
double[] temX = new double[numPoints]; |
534 |
double[] temY = new double[numPoints]; |
535 |
double[] temZ = new double[numPoints]; |
536 |
|
537 |
for (i = 0; i < numPoints; i++) { |
538 |
temX[i] = bb.getDouble(); |
539 |
temY[i] = bb.getDouble(); |
540 |
//temZ[i] = bb.getDouble();
|
541 |
} |
542 |
|
543 |
for (i = 0; i < numPoints; i++) { |
544 |
temZ[i] = bb.getDouble(); |
545 |
} |
546 |
return ShapeFactory.createMultipoint3D(temX, temY, temZ);
|
547 |
} |
548 |
|
549 |
return null; |
550 |
} |
551 |
|
552 |
/**
|
553 |
* @see com.iver.cit.gvsig.fmap.drivers.VectorialFileDriver#getShapeCount()
|
554 |
*/
|
555 |
public int getShapeCount() { |
556 |
return numReg;
|
557 |
} |
558 |
|
559 |
/**
|
560 |
* @see com.iver.cit.gvsig.fmap.drivers.VectorialDriver#getShapeType()
|
561 |
*/
|
562 |
public int getShapeType() { |
563 |
int auxType = 0; |
564 |
|
565 |
switch (type) {
|
566 |
case (SHP.POINT2D):
|
567 |
case (SHP.POINT3D):
|
568 |
auxType = auxType | FShape.POINT; |
569 |
|
570 |
break;
|
571 |
|
572 |
case (SHP.POLYLINE2D):
|
573 |
case (SHP.POLYLINE3D):
|
574 |
auxType = auxType | FShape.LINE; |
575 |
|
576 |
break;
|
577 |
|
578 |
case (SHP.POLYGON2D):
|
579 |
case (SHP.POLYGON3D):
|
580 |
auxType = auxType | FShape.POLYGON; |
581 |
|
582 |
break;
|
583 |
case (SHP.MULTIPOINT2D):
|
584 |
case (SHP.MULTIPOINT3D):
|
585 |
auxType = auxType | FShape.MULTIPOINT; |
586 |
|
587 |
break;
|
588 |
} |
589 |
|
590 |
return auxType;
|
591 |
} |
592 |
|
593 |
|
594 |
/**
|
595 |
* @see com.iver.cit.gvsig.fmap.drivers.VectorialFileDriver#initialize()
|
596 |
*/
|
597 |
public void initialize() throws IOException { |
598 |
// create a new header.
|
599 |
ShapeFileHeader2 myHeader = new ShapeFileHeader2();
|
600 |
|
601 |
// read the header
|
602 |
myHeader.readHeader(bb); |
603 |
|
604 |
extent = new Rectangle2D.Double(myHeader.myXmin, myHeader.myYmin, |
605 |
myHeader.myXmax - myHeader.myXmin, |
606 |
myHeader.myYmax - myHeader.myYmin); |
607 |
|
608 |
type = myHeader.myShapeType; |
609 |
|
610 |
double x = myHeader.myXmin;
|
611 |
double y = myHeader.myYmin;
|
612 |
double w = myHeader.myXmax - myHeader.myXmin;
|
613 |
double h = myHeader.myYmax - myHeader.myYmin;
|
614 |
|
615 |
if (w == 0) { |
616 |
x -= 0.1;
|
617 |
w = 0.2;
|
618 |
} |
619 |
|
620 |
if (h == 0) { |
621 |
y -= 0.1;
|
622 |
h = 0.2;
|
623 |
} |
624 |
|
625 |
// String strFichDbf = m_Path.toLowerCase().replaceAll("\\.shp", ".dbf");
|
626 |
String strFichDbf = file.getAbsolutePath().replaceAll("\\.shp", ".dbf"); |
627 |
strFichDbf = strFichDbf.replaceAll("\\.SHP", ".DBF"); |
628 |
|
629 |
DbaseFileNIO m_FichDbf = new DbaseFileNIO();
|
630 |
|
631 |
m_FichDbf.open(new File(strFichDbf)); |
632 |
numReg = m_FichDbf.getRecordCount(); |
633 |
// m_posShapes = new long[numReg];
|
634 |
|
635 |
// read the records.
|
636 |
/* int tempCurrentLength = myHeader.getHeaderLength();
|
637 |
int numReg = 0;
|
638 |
|
639 |
long pos1;
|
640 |
|
641 |
while (tempCurrentLength < myHeader.myFileLength) {
|
642 |
// read the record header
|
643 |
// ShapeFileRecord tempRecord = new ShapeFileRecord();
|
644 |
// Bytes 0 to 4 represent the record number in the file, these may be out of order.
|
645 |
bb.order(ByteOrder.BIG_ENDIAN);
|
646 |
|
647 |
// tempRecord.setIndex(in.readInt());
|
648 |
bb.getInt();
|
649 |
|
650 |
// read the content length of this record in 16 bit words, excluding the index.
|
651 |
// in.setLittleEndianMode(false);
|
652 |
int tempContentLength = bb.getInt();
|
653 |
|
654 |
pos1 = bb.position();
|
655 |
|
656 |
m_posShapes[numReg] = bb.position();
|
657 |
|
658 |
// Posicionamos
|
659 |
bb.position((pos1 + (2 * tempContentLength)));
|
660 |
numReg = numReg + 1;
|
661 |
|
662 |
// update the current length the 4 is for the index, and content length.
|
663 |
tempCurrentLength = tempCurrentLength + 4 + tempContentLength;
|
664 |
} */
|
665 |
} |
666 |
|
667 |
/**
|
668 |
* Reads the Point from the shape file.
|
669 |
*
|
670 |
* @param in ByteBuffer.
|
671 |
*
|
672 |
* @return Point2D.
|
673 |
*/
|
674 |
private Point2D.Double readPoint(BigByteBuffer2 in) { |
675 |
// create a new point
|
676 |
Point2D.Double tempPoint = new Point2D.Double(); |
677 |
|
678 |
// bytes 1 to 4 are the type and have already been read.
|
679 |
// bytes 4 to 12 are the X coordinate
|
680 |
in.order(ByteOrder.LITTLE_ENDIAN);
|
681 |
tempPoint.setLocation(in.getDouble(), in.getDouble()); |
682 |
|
683 |
return tempPoint;
|
684 |
} |
685 |
|
686 |
/**
|
687 |
* Lee un rect?ngulo del fichero.
|
688 |
*
|
689 |
* @param in ByteBuffer.
|
690 |
*
|
691 |
* @return Rect?ngulo.
|
692 |
*
|
693 |
* @throws IOException
|
694 |
*/
|
695 |
private Rectangle2D.Double readRectangle(BigByteBuffer2 in) |
696 |
throws IOException { |
697 |
Rectangle2D.Double tempRect = new Rectangle2D.Double(); |
698 |
in.order(ByteOrder.LITTLE_ENDIAN);
|
699 |
tempRect.x = in.getDouble(); |
700 |
tempRect.y = in.getDouble(); |
701 |
|
702 |
tempRect.width = in.getDouble() - tempRect.x; |
703 |
|
704 |
if (tempRect.width == 0) { |
705 |
tempRect.width = 0.2;
|
706 |
tempRect.x -= 0.1;
|
707 |
} |
708 |
|
709 |
tempRect.height = in.getDouble() - tempRect.y; |
710 |
|
711 |
if (tempRect.height == 0) { |
712 |
tempRect.height = 0.2;
|
713 |
tempRect.y -= 0.1;
|
714 |
} |
715 |
|
716 |
return tempRect;
|
717 |
} |
718 |
|
719 |
/**
|
720 |
* @see com.iver.cit.gvsig.fmap.drivers.VectorialFileDriver#getFullExtent()
|
721 |
*/
|
722 |
public Rectangle2D getFullExtent() throws IOException { |
723 |
return extent;
|
724 |
} |
725 |
|
726 |
/**
|
727 |
* Obtiene el extent del shape a partir de un ?ndice.
|
728 |
*
|
729 |
* @param index ?ndice.
|
730 |
*
|
731 |
* @return Rect?ngulo.
|
732 |
*
|
733 |
* @throws IOException
|
734 |
*
|
735 |
* @see com.iver.cit.gvsig.fmap.drivers.BoundedShapes#getShapeBounds()
|
736 |
*/
|
737 |
public Rectangle2D getShapeBounds(int index) throws IOException { |
738 |
Point2D p = new Point2D.Double(); |
739 |
Rectangle2D BoundingBox = new Rectangle2D.Double(); |
740 |
bb.position(getPositionForRecord(index)); |
741 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
742 |
|
743 |
int tipoShape = bb.getInt();
|
744 |
|
745 |
if (tipoShape != SHP.NULL) {
|
746 |
type = tipoShape; |
747 |
} |
748 |
|
749 |
// retrieve that shape.
|
750 |
// tempRecord.setShape(readShape(tempShapeType, tempContentLength, in));
|
751 |
switch (tipoShape) {
|
752 |
case (SHP.POINT2D):
|
753 |
case (SHP.POINT3D):
|
754 |
p = readPoint(bb); |
755 |
BoundingBox = new Rectangle2D.Double(p.getX() - 0.1, |
756 |
p.getY() - 0.1, 0.2, 0.2); |
757 |
|
758 |
break;
|
759 |
|
760 |
case (SHP.POLYLINE2D):
|
761 |
case (SHP.POLYGON2D):
|
762 |
case (SHP.MULTIPOINT2D):
|
763 |
case (SHP.POLYLINE3D):
|
764 |
case (SHP.POLYGON3D):
|
765 |
case (SHP.MULTIPOINT3D):
|
766 |
|
767 |
// BoundingBox
|
768 |
BoundingBox = readRectangle(bb); |
769 |
|
770 |
break;
|
771 |
} |
772 |
|
773 |
return BoundingBox;
|
774 |
} |
775 |
|
776 |
/**
|
777 |
* @see com.iver.cit.gvsig.fmap.drivers.VectorialFileDriver#accept(java.io.File)
|
778 |
*/
|
779 |
public boolean accept(File f) { |
780 |
return (f.getName().toUpperCase().endsWith("SHP")); |
781 |
} |
782 |
|
783 |
/**
|
784 |
* @see com.hardcode.driverManager.Driver#getType()
|
785 |
*/
|
786 |
public String getName() { |
787 |
return "gvSIG indexed shp driver"; |
788 |
} |
789 |
|
790 |
/**
|
791 |
* @see com.iver.cit.gvsig.fmap.drivers.VectorialFileDriver#getDataDriverName()
|
792 |
*/
|
793 |
public String getDataDriverName() { |
794 |
return "gdbms dbf driver"; |
795 |
} |
796 |
|
797 |
/**
|
798 |
* @see com.iver.cit.gvsig.fmap.drivers.VectorialFileDriver#getDataFile(java.io.File)
|
799 |
*/
|
800 |
public File getDataFile(File f) { |
801 |
String str = f.getAbsolutePath();
|
802 |
|
803 |
return new File(str.substring(0, str.length() - 3) + "dbf"); |
804 |
} |
805 |
|
806 |
public File getShxFile(File f) { |
807 |
String str = f.getAbsolutePath();
|
808 |
|
809 |
return new File(str.substring(0, str.length() - 3) + "shx"); |
810 |
} |
811 |
|
812 |
|
813 |
/* (non-Javadoc)
|
814 |
* @see com.iver.cit.gvsig.fmap.drivers.BoundedShapes#getShapeType(int)
|
815 |
*/
|
816 |
public int getShapeType(int index) { |
817 |
// Por ahora todos los fichero .shp contienen
|
818 |
// entidades del mismo tipo. Si trabajamos con
|
819 |
// alguno mixto, tendremos que cambiar esta funci?n.
|
820 |
return getShapeType();
|
821 |
} |
822 |
|
823 |
/* (non-Javadoc)
|
824 |
* @see com.iver.cit.gvsig.fmap.drivers.VectorialDriver#getDriverAttributes()
|
825 |
*/
|
826 |
public DriverAttributes getDriverAttributes() {
|
827 |
// TODO Auto-generated method stub
|
828 |
return null; |
829 |
} |
830 |
|
831 |
private long getPositionForRecord(int numRec) |
832 |
{ |
833 |
// shx file has a 100 bytes header, then, records
|
834 |
// 8 bytes length, one for each entity.
|
835 |
// first 4 bytes are the offset
|
836 |
// next 4 bytes are length
|
837 |
|
838 |
int posIndex = 100 + (numRec * 8); |
839 |
// bbShx.position(posIndex);
|
840 |
long pos = 8 + 2*bbShx.getInt(posIndex); |
841 |
|
842 |
return pos;
|
843 |
} |
844 |
} |