svn-gvsig-desktop / branches / v10 / libraries / libLidar / src / com / dielmo / gvsig / lidar / InicializeLidar.java @ 23189
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/*******************************************************************************
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InicializeLidar.java
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Copyright (C) 2008 by DIELMO 3D S.L.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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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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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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package com.dielmo.gvsig.lidar; |
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import java.io.File; |
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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 javax.swing.JOptionPane; |
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import com.iver.andami.PluginServices; |
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/**
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* Inicizliza Lidar points and header
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*
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* @author Oscar Garcia
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*/
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public class InicializeLidar { |
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public static int testLASFormat(File name) { |
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File f = name;
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InputStream input;
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int offset = 0,numRead = 0; |
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char[] FileSignatureLASF = new char[4]; |
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char versionMajor, versionMinor, format;
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byte[] cabecera = new byte[105]; |
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try {
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input = new FileInputStream(f); |
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while (offset < cabecera.length && (numRead = input.read(cabecera, offset, cabecera.length-offset) ) >= 0) { |
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offset += numRead; |
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} |
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if (offset < cabecera.length) {
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JOptionPane.showMessageDialog(null, PluginServices.getText(null, "bad_input_format")); |
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} |
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FileSignatureLASF[0] = (char)(cabecera[0] & 0xFF); |
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FileSignatureLASF[1] = (char)(cabecera[1] & 0xFF); |
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FileSignatureLASF[2] = (char)(cabecera[2] & 0xFF); |
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FileSignatureLASF[3] = (char)(cabecera[3] & 0xFF); |
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if(FileSignatureLASF[0] == 'L'&& FileSignatureLASF[1] == 'A'&& FileSignatureLASF[2] == 'S' && FileSignatureLASF[3] == 'F') { |
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if (offset < cabecera.length) {
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JOptionPane.showMessageDialog(null, PluginServices.getText(null, "bad_input_format")); |
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} |
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versionMajor = (char)(cabecera[24] & 0xFF); |
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versionMinor = (char)(cabecera[25] & 0xFF); |
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format = (char)(cabecera[104] & 0xFF); |
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if(versionMajor == 1 && versionMinor == 0) { |
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if(format == 0) |
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return LidarHeader.LAS10F0;
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else if(format == 1) |
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return LidarHeader.LAS10F1;
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} else if(versionMajor == 1 && versionMinor == 1) { |
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if(format == 0) |
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return LidarHeader.LAS11F0;
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else if(format == 1) |
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return LidarHeader.LAS11F1;
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} else {
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throw new UnexpectedLidarHeaderException(PluginServices.getText(null, "Cabecera_inesperada")); |
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} |
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} |
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} catch(UnexpectedLidarHeaderException e) {
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e.printStackTrace(); |
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} catch (FileNotFoundException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} catch (IOException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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return LidarHeader.UNEXPECTED;
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} |
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public static int testBINFormat(File name) { |
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File f = name;
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InputStream input;
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int offset = 0,numRead = 0; |
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byte[] cabecera = new byte[8]; |
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try {
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input = new FileInputStream(f); |
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while (offset < cabecera.length && (numRead = input.read(cabecera, offset, cabecera.length-offset) ) >= 0) { |
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offset += numRead; |
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} |
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if (offset < cabecera.length) {
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JOptionPane.showMessageDialog(null, PluginServices.getText(null, "bad_input_format")); |
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} |
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int HdrVersionBin;
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HdrVersionBin = ByteUtilities.arr2int(cabecera, 4);
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if(HdrVersionBin == 20020715) { |
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return LidarHeader.BIN20020715;
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} |
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else if( HdrVersionBin == 20010712) { |
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return LidarHeader.BIN20010712;
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} // ( HdrVersionBin == 20010129 || HdrVersionBin == 970404)
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} catch (FileNotFoundException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} catch (IOException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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return LidarHeader.UNEXPECTED;
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} |
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public static int testFormat(File name) { |
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int f = testLASFormat(name);
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if(f != LidarHeader.UNEXPECTED) {
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return f;
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} |
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f = testBINFormat(name); |
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if(f != LidarHeader.UNEXPECTED) {
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return f;
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} |
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return LidarHeader.UNEXPECTED;
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} |
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public static LidarPoint InizializeLidarPoint(File file) { |
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boolean binColor, binTime;
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int type = testFormat(file);
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switch(type) {
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case LidarHeader.LAS10F0:
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return new LASPoint10F0(); |
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case LidarHeader.LAS10F1:
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return new LASPoint10F1(); |
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case LidarHeader.LAS11F0:
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return new LASPoint11F0(); |
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case LidarHeader.LAS11F1:
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return new LASPoint11F1(); |
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case LidarHeader.BIN20010712:
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BINHeader headerBin2001 = new BINHeader(file);
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headerBin2001.readLidarHeader(); |
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binColor = false;
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binTime = false;
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if(headerBin2001.getColor()>0) |
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binColor = true;
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if(headerBin2001.getTime()>0) |
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binTime = true;
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return new BINPoint2001(binColor, binTime); |
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case LidarHeader.BIN20020715:
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BINHeader headerBin2002 = new BINHeader(file);
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headerBin2002.readLidarHeader(); |
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binColor = false;
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binTime = false;
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if(headerBin2002.getColor()>0) |
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binColor = true;
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if(headerBin2002.getTime()>0) |
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binTime = true;
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return new BINPoint2002(binColor, binTime); |
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} |
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return null; |
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} |
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public static LidarHeader InizializeLidarHeader(File file) { |
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int type = testFormat(file);
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switch(type) {
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case LidarHeader.LAS10F0:
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case LidarHeader.LAS10F1:
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LASHeader_V10 header10 = new LASHeader_V10(file);
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header10.readLidarHeader(); |
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return header10;
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case LidarHeader.LAS11F0:
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case LidarHeader.LAS11F1:
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LASHeader_V11 header11 = new LASHeader_V11(file);
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header11.readLidarHeader(); |
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return header11;
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case LidarHeader.BIN20010712:
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BINHeader headerBin2001 = new BINHeader(file);
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headerBin2001.readLidarHeader(); |
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return headerBin2001;
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case LidarHeader.BIN20020715:
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BINHeader headerBin2002 = new BINHeader(file);
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headerBin2002.readLidarHeader(); |
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return headerBin2002;
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} |
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return null; |
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} |
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} |