svn-gvsig-desktop / branches / v10 / libraries / libDielmoOpenLidar / src / com / dielmo / lidar / BINHeader.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.FileNotFoundException; |
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import java.io.IOException; |
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import java.io.InputStream; |
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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 javax.swing.JOptionPane; |
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//The structure of the TerraScan file header is:
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public class BINHeader implements LidarHeader{ |
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/**
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* path of LAS file
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*/
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private File m_Fich; |
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/**
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* Size, in bytes, of the header file
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*/
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private int hdrSize ; // sizeof(ScanHdr) |
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/**
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* version number
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*/
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private int hdrVersion ; // Version 20020715, 20010712, 20010129 or 970404 |
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/**
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* RecogVal value, always 970401
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*/
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private int RecogVal ; // Always 970401 |
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/**
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* RecogStr value, always 970401
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*/
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private char[] RecogStr = new char[4]; // CXYZ |
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/**
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* total number of points records within the file
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*/
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private long PntCnt ; // Number of points stored |
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/**
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* unit of measure
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*/
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private int Units ; // Units per meter = subpermast * uorpersub |
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/**
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* X coordinate system origin
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*/
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private double OrgX ; // Coordinate system origin |
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/**
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* Y coordinate system origin
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*/
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private double OrgY ; |
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/**
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* Z coordinate system origin
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*/
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private double OrgZ ; |
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/**
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* time stamps appended to points
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*/
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private int Time ; // 32 bit integer time stamps appended to points |
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/**
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* color appended to points
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*/
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private int Color ; // Color values appended to points |
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/**
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* The actual maximum X of coordinate extents of the file
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*/
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private double maxX; |
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/**
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* The actual minimum X of coordinate extents of the file
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*/
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private double minX; |
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/**
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* The actual maximum Y of coordinate extents of the file
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*/
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private double maxY; |
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/**
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* The actual minimum Y of coordinate extents of the file
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*/
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private double minY; |
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/**
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* The actual maximum Z of coordinate extents of the file
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*/
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private double maxZ; |
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/**
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* The actual minimum Z of coordinate extents of the file
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*/
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private double minZ; |
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/**
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* Default constructor, without arguments.
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* Initializes all components to zero.
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*/
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public BINHeader(File file) { |
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m_Fich = file; |
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hdrSize = 56; // sizeof(ScanHdr) |
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hdrVersion = 20020715; // Version 20020715, 20010712, 20010129 or 970404 |
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RecogVal = 970401; // Always 970401 |
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RecogStr[0] = 'C'; |
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RecogStr[1] = 'X'; |
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RecogStr[2] = 'Y'; |
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RecogStr[3] = 'Z'; |
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PntCnt = 0; // Number of points stored |
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Units = 0; // Units per meter = subpermast * uorpersub |
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OrgX = 0; // Coordinate system origin |
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OrgY = 0;
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OrgZ = 0;
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Time = 0; // 32 bit integer time stamps appended to points |
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Color = 0; // Color values appended to points |
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maxX=Double.MIN_VALUE;
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minX=Double.MAX_VALUE;
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maxY=Double.MIN_VALUE;
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minY=Double.MAX_VALUE;
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maxZ=Double.MIN_VALUE;
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minZ=Double.MAX_VALUE;
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} |
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// GET METHODS
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/**
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* Return Size, in bytes, of the header file
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*
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* @return header size
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*/
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public int getHdrSize() { |
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return hdrSize;
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} |
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/**
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* Return BIN version of the file
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*
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* @return version
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*/
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public int getHdrVersion() { |
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return hdrVersion;
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} |
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/**
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* Return value RecogVal
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*
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* @return RecogVal
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*/
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public int getRecogVal() { |
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return RecogVal;
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} |
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/**
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* Return value RecogStr
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*
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* @return RecogStr
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*/
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public void getRecogStr(char[] str) { |
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str[0] = RecogStr[0]; |
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str[1] = RecogStr[1]; |
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str[2] = RecogStr[2]; |
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str[3] = RecogStr[3]; |
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return;
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} |
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/**
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* Return the total number of points records within the file
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*
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* @return number of points of file
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*/
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public long getNumPointsRecord() { |
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return PntCnt;
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} |
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/**
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* Return the unit of measure
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*
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* @return unit of measure
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*/
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public int getUnits() { |
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return Units;
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} |
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/**
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* Return X coordinate system origin
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*
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* @return X coordinate
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*/
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public double getOrgX() { |
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return OrgX;
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} |
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/**
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* Return Y coordinate system origin
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*
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* @return Y coordinate
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*/
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public double getOrgY() { |
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return OrgY;
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} |
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/**
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* Return Z coordinate system origin
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*
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* @return Z coordinate
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*/
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public double getOrgZ() { |
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return OrgZ;
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} |
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/**
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* Return time stamps appended to points
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*
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* @return time stamps
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*/
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public int getTime(){ |
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return Time; |
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} |
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/**
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* Return color values appended to points
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*
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* @return color
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*/
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public int getColor() { |
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return Color; |
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} |
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public long getOffsetData() { |
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return getHdrSize();
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} |
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public int getVersion() { |
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if(getHdrVersion()==20010712) |
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return LidarHeader.BIN20010712;
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else if(getHdrVersion()==20020715) |
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return LidarHeader.BIN20020715;
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else
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return LidarHeader.UNEXPECTED;
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} |
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public double getXScale() { |
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return (double)getUnits(); |
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} |
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public double getYScale() { |
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return (double)getUnits(); |
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} |
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public double getZScale() { |
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return (double)getUnits(); |
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} |
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public double getXOffset() { |
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return (double)getOrgX(); |
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} |
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public double getYOffset() { |
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return (double)getOrgY(); |
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} |
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public double getZOffset() { |
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return (double)getOrgZ(); |
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} |
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public double getMaxX() { |
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return maxX;
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} |
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public double getMaxY() { |
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return maxY;
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} |
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public double getMaxZ() { |
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return maxZ;
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} |
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public double getMinX() { |
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return minX;
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} |
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public double getMinY() { |
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return minY;
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} |
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public double getMinZ() { |
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return minZ;
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} |
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// SET METHODS
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/**
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* Set Size, in bytes, of the header file
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*
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* @param value new value of header file
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*/
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public void setHdrSize(int value) { |
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hdrSize=value; |
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} |
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/**
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* Set BIN version of the file
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*
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* @param value new version
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*/
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public void setHdrVersion(int value) { |
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hdrVersion=value; |
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} |
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/**
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* Set value RecogVal
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*
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* @param value new RecogVal
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*/
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public void setRecogVal(int value) { |
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RecogVal=value; |
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} |
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/**
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* Set value RecogStr
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*
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* @param str new RecogStr
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*/
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public void setRecogStr(char[] str) { |
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RecogStr[0]=str[0]; |
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RecogStr[1]=str[1]; |
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RecogStr[2]=str[2]; |
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RecogStr[3]=str[3]; |
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return;
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} |
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/**
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* Set point stored
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*
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* @param value new point stored
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*/
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public void setNumPointsRecord(long value) { |
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try{
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if(value>=0 && value <= UNSIGNED_INT_MAX) |
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PntCnt=value; |
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else
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throw new OutOfRangeLidarException("Out of range of num points record"); |
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} catch(OutOfRangeLidarException e) {
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e.printStackTrace(); |
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} |
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} |
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/**
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* Set unit of measure
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*
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* @param value new unit
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*/
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public void setUnits(int value) { |
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Units=value; |
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} |
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/**
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* Set X coordinate system origin
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*
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* @param value new X coordinate
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*/
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public void setOrgX(double value) { |
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OrgX=value; |
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} |
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|
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/**
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* Set Y coordinate system origin
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*
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* @param value new Y coordinate
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*/
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public void setOrgY(double value) { |
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OrgY=value; |
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} |
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/**
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* Set Z coordinate system origin
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*
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* @param value new Z coordinate
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*/
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public void setOrgZ(double value) { |
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OrgZ=value; |
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} |
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/**
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* Set time stamps appended to points
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*
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* @param value new time stamps
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*/
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public void setTime(int value) { |
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Time=value;
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} |
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/**
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* Set color appended to points
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*
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* @param value new color
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*/
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public void setColor(int value) { |
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Color=value;
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} |
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public void setMaxX(double newValue) { |
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maxX = newValue; |
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} |
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public void setMaxY(double newValue) { |
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maxY = newValue; |
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} |
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public void setMaxZ(double newValue) { |
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maxZ = newValue; |
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} |
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public void setMinX(double newValue) { |
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minX = newValue; |
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} |
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public void setMinY(double newValue) { |
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minY = newValue; |
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} |
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public void setMinZ(double newValue) { |
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minZ = newValue; |
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} |
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public void setOffsetData(long newValue) { |
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setHdrSize((int) newValue);
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} |
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public void setXOffset(double newValue) { |
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OrgX = newValue; |
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} |
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public void setXScale(double newValue) { |
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setUnits((int) newValue);
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} |
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public void setYOffset(double newValue) { |
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OrgY = newValue; |
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} |
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public void setYScale(double newValue) { |
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setUnits((int) newValue);
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} |
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public void setZOffset(double newValue) { |
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OrgZ = newValue; |
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} |
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public void setZScale(double newValue) { |
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setUnits((int) newValue);
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} |
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/**
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* Read the header of BIN file
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*
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* @param input input file to read
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* @return true if success else return false
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*/
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public boolean readLidarHeader() { |
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int offset = 0,numRead = 0; |
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byte[] cabecera = new byte[56]; |
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File file = m_Fich;
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InputStream input;
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//leemos la cabecera
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try {
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input = new FileInputStream(file); |
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while (offset < 56 && (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, "Bad Input Format"); |
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return false; |
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} |
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input.close(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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setHdrSize(ByteUtilities.arr2Int(cabecera, 0));
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if (getHdrSize() != 56) { |
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JOptionPane.showMessageDialog(null, "Bad input format"); |
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return false; |
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} |
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setHdrVersion(ByteUtilities.arr2Int(cabecera, 4));
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setRecogVal(ByteUtilities.arr2Int(cabecera, 8));
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RecogStr[0] = (char)cabecera[12]; |
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RecogStr[1] = (char)cabecera[13]; |
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RecogStr[2] = (char)cabecera[14]; |
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RecogStr[3] = (char)cabecera[15]; |
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setNumPointsRecord(ByteUtilities.arr2UnsignedInt(cabecera, 16));
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setUnits(ByteUtilities.arr2Int(cabecera, 20));
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setOrgX(ByteUtilities.arr2Double(cabecera, 24));
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setOrgY(ByteUtilities.arr2Double(cabecera, 32));
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setOrgZ(ByteUtilities.arr2Double(cabecera, 40));
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setTime(ByteUtilities.arr2Int(cabecera, 48));
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setColor(ByteUtilities.arr2Int(cabecera, 52));
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|
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getMaxMinXYZ(); |
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return true; |
| 586 |
} |
| 587 |
|
| 588 |
private void getMaxMinXYZ() { |
| 589 |
|
| 590 |
long auxMaxX=Long.MIN_VALUE, auxMinX=Long.MAX_VALUE, x; |
| 591 |
long auxMaxY=Long.MIN_VALUE, auxMinY=Long.MAX_VALUE, y; |
| 592 |
long auxMaxZ=Long.MIN_VALUE, auxMinZ=Long.MAX_VALUE, z; |
| 593 |
long j;
|
| 594 |
long inc=1; |
| 595 |
BigByteBuffer2 bb; |
| 596 |
FileChannel channel;
|
| 597 |
FileInputStream fin;
|
| 598 |
|
| 599 |
|
| 600 |
try {
|
| 601 |
fin = new FileInputStream(m_Fich); |
| 602 |
|
| 603 |
// Open the file and then get a channel from the stream
|
| 604 |
channel = fin.getChannel(); |
| 605 |
|
| 606 |
// Get the file's size and then map it into memory
|
| 607 |
// bb = channel.map(FileChannel.MapMode.READ_ONLY, 0, size);
|
| 608 |
bb = new BigByteBuffer2(channel, FileChannel.MapMode.READ_ONLY); |
| 609 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 610 |
|
| 611 |
inc = getNumPointsRecord() / 5000;
|
| 612 |
if (inc < 1) |
| 613 |
inc = 1;
|
| 614 |
|
| 615 |
if(getVersion()==LidarHeader.BIN20010712) {
|
| 616 |
|
| 617 |
for (j=0 ; j<getNumPointsRecord(); j+=inc) { |
| 618 |
|
| 619 |
BINPoint2001 pointBin2001 = new BINPoint2001(getColor()>0, getTime()>0); |
| 620 |
pointBin2001.readPoint3D(bb,this,j);
|
| 621 |
x=pointBin2001.getX(); |
| 622 |
y=pointBin2001.getY(); |
| 623 |
z=pointBin2001.getZ(); |
| 624 |
|
| 625 |
if (auxMinX > x)
|
| 626 |
auxMinX = x; |
| 627 |
|
| 628 |
if (auxMaxX < x)
|
| 629 |
auxMaxX = x; |
| 630 |
|
| 631 |
if (auxMinY > y)
|
| 632 |
auxMinY = y; |
| 633 |
|
| 634 |
if (auxMaxY < y)
|
| 635 |
auxMaxY = y; |
| 636 |
|
| 637 |
if (auxMinZ > z)
|
| 638 |
auxMinZ = z; |
| 639 |
|
| 640 |
if (auxMaxZ < z)
|
| 641 |
auxMaxZ = z; |
| 642 |
} |
| 643 |
|
| 644 |
setMaxX((auxMaxX - getOrgX())/getUnits()); |
| 645 |
setMinX((auxMinX - getOrgX())/getUnits()); |
| 646 |
setMaxY((auxMaxY - getOrgY())/getUnits()); |
| 647 |
setMinY((auxMinY - getOrgY())/getUnits()); |
| 648 |
setMaxZ((auxMaxZ - getOrgZ())/getUnits()); |
| 649 |
setMinZ((auxMinZ - getOrgZ())/getUnits()); |
| 650 |
} else if(getVersion()==LidarHeader.BIN20020715) { |
| 651 |
|
| 652 |
for (j=0 ; j<getNumPointsRecord(); j+=inc) { |
| 653 |
|
| 654 |
BINPoint2002 pointBin2002 = new BINPoint2002(getColor()>0, getTime()>0); |
| 655 |
pointBin2002.readPoint3D(bb,this,j);
|
| 656 |
x=pointBin2002.getX(); |
| 657 |
y=pointBin2002.getY(); |
| 658 |
z=pointBin2002.getZ(); |
| 659 |
|
| 660 |
if (auxMinX > x)
|
| 661 |
auxMinX = x; |
| 662 |
|
| 663 |
if (auxMaxX < x)
|
| 664 |
auxMaxX = x; |
| 665 |
|
| 666 |
if (auxMinY > y)
|
| 667 |
auxMinY = y; |
| 668 |
|
| 669 |
if (auxMaxY < y)
|
| 670 |
auxMaxY = y; |
| 671 |
|
| 672 |
if (auxMinZ > z)
|
| 673 |
auxMinZ = z; |
| 674 |
|
| 675 |
if (auxMaxZ < z)
|
| 676 |
auxMaxZ = z; |
| 677 |
} |
| 678 |
|
| 679 |
setMaxX((auxMaxX - getOrgX())/getUnits()); |
| 680 |
setMinX((auxMinX - getOrgX())/getUnits()); |
| 681 |
setMaxY((auxMaxY - getOrgY())/getUnits()); |
| 682 |
setMinY((auxMinY - getOrgY())/getUnits()); |
| 683 |
setMaxZ((auxMaxZ - getOrgZ())/getUnits()); |
| 684 |
setMinZ((auxMinZ - getOrgZ())/getUnits()); |
| 685 |
} |
| 686 |
|
| 687 |
} catch (FileNotFoundException e) { |
| 688 |
// TODO Auto-generated catch block
|
| 689 |
e.printStackTrace(); |
| 690 |
} catch (IOException e) { |
| 691 |
// TODO Auto-generated catch block
|
| 692 |
e.printStackTrace(); |
| 693 |
} |
| 694 |
} |
| 695 |
|
| 696 |
public boolean writeLidarHeader(ByteBuffer bb) { |
| 697 |
|
| 698 |
byte[] hdr = new byte[56]; |
| 699 |
int i, index;
|
| 700 |
|
| 701 |
// hdrSize bytes 0-4
|
| 702 |
ByteUtilities.int2Arr(getHdrSize(), hdr, 0);
|
| 703 |
|
| 704 |
// hdrVersion bytes 4-8
|
| 705 |
ByteUtilities.int2Arr(getHdrVersion(), hdr, 4);
|
| 706 |
|
| 707 |
// RecogVal bytes 8-12
|
| 708 |
ByteUtilities.int2Arr(getRecogVal(), hdr, 8);
|
| 709 |
|
| 710 |
// RecogStr bytes 12-16
|
| 711 |
i=0;
|
| 712 |
for(index=12;index<16;index++){ |
| 713 |
hdr[index] = ((byte)(RecogStr[i] & 0XFF)); |
| 714 |
i++; |
| 715 |
} |
| 716 |
|
| 717 |
// PntCnt bytes 16-20
|
| 718 |
ByteUtilities.unsignedInt2Arr(getNumPointsRecord(), hdr, 16);
|
| 719 |
|
| 720 |
// Units bytes 20-24
|
| 721 |
ByteUtilities.int2Arr(getUnits(), hdr, 20);
|
| 722 |
|
| 723 |
// OrgX bytes 24-32
|
| 724 |
ByteUtilities.double2Arr(getOrgX(), hdr, 24);
|
| 725 |
|
| 726 |
// OrgY bytes 32-40
|
| 727 |
ByteUtilities.double2Arr(getOrgY(), hdr, 32);
|
| 728 |
|
| 729 |
// OrgZ bytes 40-48
|
| 730 |
ByteUtilities.double2Arr(getOrgZ(), hdr, 40);
|
| 731 |
|
| 732 |
// Time bytes 48-52
|
| 733 |
ByteUtilities.int2Arr(getTime(), hdr, 48);
|
| 734 |
|
| 735 |
// Color bytes 52-56
|
| 736 |
ByteUtilities.int2Arr(getColor(), hdr, 52);
|
| 737 |
|
| 738 |
bb.put(hdr); |
| 739 |
|
| 740 |
return false; |
| 741 |
} |
| 742 |
} |