root / trunk / libraries / libCq CMS for java.old / src / org / cresques / io / TrkFile.java @ 199
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/*
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* Creado el 21-jun-2004
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*/
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package org.cresques.io; |
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import java.io.DataInputStream; |
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import java.io.EOFException; |
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import java.io.FileInputStream; |
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import java.io.FileNotFoundException; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import org.cresques.cts.ICoordTrans; |
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import org.cresques.cts.IProjection; |
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import org.cresques.px.IObjList; |
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import org.cresques.px.PxObjList; |
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import org.cresques.px.gml.LineString; |
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/**
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* @author luisw
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*/
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public class TrkFile extends GeoFile { |
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private DataInputStream is; |
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long l = 0; |
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LineString line; |
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public TrkFile(IProjection proj, String name) { |
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super(proj, name);
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} |
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/* (no Javadoc)
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* @see org.cresques.io.GeoFile#load()
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*/
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public GeoFile load() {
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try {
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return load(new FileInputStream(name)); |
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} catch (NumberFormatException e) { |
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// TODO Bloque catch generado autom?ticamente
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e.printStackTrace(); |
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} catch (FileNotFoundException e) { |
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// TODO Bloque catch generado autom?ticamente
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e.printStackTrace(); |
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} catch (Exception e) { |
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// TODO Bloque catch generado autom?ticamente
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e.printStackTrace(); |
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} |
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return this; |
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} |
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public GeoFile load(InputStream is) throws NumberFormatException, Exception { |
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System.out.println("Trk: Cargando '"+name+"' ..."); |
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this.is = new DataInputStream(is); |
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line = new LineString();
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while (readPoint()) {
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l++; |
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} |
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extent.add(line.getExtent()); |
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is.close(); |
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System.out.println("Trk: '"+name+"' cargado. ("+l+" puntos)."); |
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return this; |
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} |
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public boolean readPoint() { |
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int h, m, s, sgn = 1; |
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double D, M, S;
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double lat, lng;
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try {
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h = is.readUnsignedByte(); |
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m = is.readUnsignedByte(); |
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s = is.readUnsignedByte(); |
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is.skipBytes(1);
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D = is.readUnsignedByte(); |
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M = is.readByte(); |
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S = is.readUnsignedShort(); |
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S /= 1000.0;
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if (M<0) { |
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sgn = -1;
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M *= -1;
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} else sgn = 1; |
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lat = sgn * (D + (M/60D+S/3600D)); |
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D = is.readUnsignedByte(); |
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M = is.readByte(); |
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S = is.readUnsignedShort(); |
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S /= 1000.0;
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if (M<0) { |
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sgn = -1;
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M *= -1;
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} else sgn = 1; |
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lng = sgn * (D + (M/60D+S/3600D)); |
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line.add(proj.createPoint(lng, lat)); |
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} catch (EOFException eof) { |
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return false; |
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} catch (IOException e) { |
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// TODO Bloque catch generado autom?ticamente
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e.printStackTrace(); |
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return false; |
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} |
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return true; |
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} |
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/* (no Javadoc)
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* @see org.cresques.io.GeoFile#reProject(org.cresques.geo.ReProjection)
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*/
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public IObjList getObjects() {
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IObjList oList = new PxObjList(proj);
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oList.add(line); |
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return oList;
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} |
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public void reProject(ICoordTrans rp) { |
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line.reProject(rp); |
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setProjection(rp.getPDest()); |
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.GeoFile#close()
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*/
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public void close() { |
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// TODO Auto-generated method stub
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} |
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} |