svn-gvsig-desktop / branches / v10 / libraries / libDielmoOpenLidar / src / com / dielmo / lidar / InicializeLidar.java @ 26395
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/* DielmoOpenLiDAR
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*
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* Copyright (C) 2008 DIELMO 3D S.L. (DIELMO) and Infrastructures
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* and Transports Department of the Valencian Government (CIT)
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For more information, contact:
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*
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* DIELMO 3D S.L.
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* Plaza Vicente Andr?s Estell?s 1 Bajo E
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* 46950 Xirivella, Valencia
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* SPAIN
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*
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* +34 963137212
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* dielmo@dielmo.com
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* www.dielmo.com
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*
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* or
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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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/*
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* AUTHORS (In addition to DIELMO and CIT):
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*
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*/
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package com.dielmo.lidar; |
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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.io.InputStream; |
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import javax.swing.JOptionPane; |
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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) throws IOException, |
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UnexpectedLidarHeaderException {
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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]; // lleemos hasta el byte que nos indica la version de LAS en la que estamos |
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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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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, "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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} |
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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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} |
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} else if (versionMajor == 1 && versionMinor == 2){ |
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if(format == 0) { |
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return LidarHeader.LAS12F0;
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} else if(format == 1) { |
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return LidarHeader.LAS12F1;
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} else if(format == 2) { |
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return LidarHeader.LAS12F2;
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} else if(format == 3) { |
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return LidarHeader.LAS12F3;
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} |
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} else {
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throw new UnexpectedLidarHeaderException("Header not expected"); |
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} |
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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) throws IOException { |
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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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input = new FileInputStream(f); |
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while (offset < cabecera.length
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&& (numRead = input.read(cabecera, offset, cabecera.length |
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- offset)) >= 0) {
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offset += numRead; |
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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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} else if (HdrVersionBin == 20010712) { |
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return LidarHeader.BIN20010712;
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} // ( HdrVersionBin == 20010129 || HdrVersionBin == 970404)
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return LidarHeader.UNEXPECTED;
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} |
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public static int testFormat(File name) throws IOException, |
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UnexpectedLidarHeaderException {
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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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if (f == LidarHeader.UNEXPECTED) {
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JOptionPane.showMessageDialog(null, "Unsupported format"); |
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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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throws IOException, UnexpectedLidarHeaderException { |
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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.LAS12F0:
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return new LASPoint12F0(); |
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case LidarHeader.LAS12F1:
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return new LASPoint12F1(); |
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case LidarHeader.LAS12F2:
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return new LASPoint12F2(); |
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case LidarHeader.LAS12F3:
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return new LASPoint12F3(); |
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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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} |
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if(headerBin2001.getTime()>0) { |
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binTime = true;
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} |
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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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} |
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if(headerBin2002.getTime()>0) { |
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binTime = true;
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} |
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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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throws IOException, UnexpectedLidarHeaderException { |
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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.LAS12F0:
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case LidarHeader.LAS12F1:
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case LidarHeader.LAS12F2:
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case LidarHeader.LAS12F3:
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LASHeader_V12 header12 = new LASHeader_V12(file);
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header12.readLidarHeader(); |
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return header12;
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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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} |