svn-gvsig-desktop / branches / v10 / libraries / libDielmoOpenLidar / src / com / dielmo / lidar / LASPoint10F0.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.awt.geom.Point2D; |
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import java.nio.ByteBuffer; |
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import com.dielmo.lidar.fieldsDescription.ColumnDescription; |
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import com.dielmo.lidar.fieldsDescription.ContainerColumnDescription; |
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/**
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* LAS point that implement the LAS point data version LAS1.0
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* in format 0
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*
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* @author Oscar Garcia
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*/
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public class LASPoint10F0 implements LidarPoint{ |
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protected int sizeFormat; |
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/**
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* X value
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*/
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protected int x; |
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|
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/**
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* Y value
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*/
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protected int y; |
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|
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/**
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* Z value
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*/
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protected int z; |
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/**
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* The intensity value is the integer representation of the
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* pulse return magnitude.
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*/
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protected int intensity; |
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/**
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* The return number is the pulse return number for a given output
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* pulse.
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*/
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protected byte returnNumber; |
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|
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/**
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* Total number of returns for a given pulse.
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*/
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protected byte numberOfReturn; |
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/**
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* direction at which the scanner mirror was traveling at the time
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* of the output pulse.
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*/
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protected byte scanDirectionFlag; |
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/**
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* The edge of flight line data bit has a value of 1 only when
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* the point is at the end of a scan. It is the last point on a
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* given scan line before it changes direction.
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*/
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protected byte edgeOfFlightLine; |
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/**
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* The classification field is a number to signify a given
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* classification during filter processing.
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*/
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protected char classification; |
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/**
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* Angle at which the laser point was output from the laser system
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* including the roll of the aircraft. The scan angle is within 1
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* degree of accuracy from +90 to -90 degrees. The scan angle is an
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* angle based on 0 degrees being NADIR, end -90 degrees to the left
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* side of the aircraft in the direction of flight.
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*/
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protected byte scanAngleRank; |
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/**
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* The file marker is an optional field that should be used in
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* conjunction with the variable length records.
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* The file marker allows for the LAS flight-line based files
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* to be combined into single files with more than one flight-line.
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*/
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protected char fileMarker; |
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/**
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* A bit field that is to be used at the users discretion.
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*/
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protected int UserBitField; |
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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 LASPoint10F0() {
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x = 0;
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y = 0;
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z = 0;
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intensity = 0;
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returnNumber = 0;
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numberOfReturn = 0;
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scanDirectionFlag = 0;
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edgeOfFlightLine = 0;
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classification = 0;
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scanAngleRank = 0;
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fileMarker = 0;
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UserBitField = 0;
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sizeFormat = 20;
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} |
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// GET METHODS
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/**
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* Return X value that is stored as integer. The corresponding
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* X scale from the public header block change this long integer to
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* true floating point value. The corresponding offset value can
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* also be used for projections with very large numbers.
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*
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* the coordinate = X*Xscale+Xoffset
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*
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* @return x value
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*/
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public int getX() { |
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return x;
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} |
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/**
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* Return Y value that is stored as integer. The corresponding
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* Y scale from the public header block change this long integer to
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* true floating point value. The corresponding offset value can
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* also be used for projections with very large numbers.
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*
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* * the coordinate = Y*Yscale+Yoffset
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*
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* @return y value
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*/
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public int getY() { |
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return y;
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} |
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/**
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* Return Z value that is stored as long integer. The corresponding
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* Z scale from the public header block change this long integer to
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* true floating point value. The corresponding offset value can
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* also be used for projections with very large numbers.
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*
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* * the coordinate = Z*Zscale+Zoffset
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*
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* @return z value
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*/
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public int getZ() { |
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return z;
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} |
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/**
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* Get the intensity value as the integer representation of the pulse
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* return magnitude. This value is optional and system specific
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*
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* @return intensity value
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*/
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public int getIntensity() { |
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return intensity;
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} |
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/**
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* Get the return number as the pulse return number for a given output
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* pulse.
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*
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* @return pulse return number
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*/
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public byte getReturnNumber() { |
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return returnNumber;
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} |
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/**
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* Get total number of returns for a given pulse.
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*
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* @return number of return
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*/
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public byte getNumberOfReturn() { |
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return numberOfReturn;
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} |
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/**
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* Get direction at which the scanner mirror was traveling at the time
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* of the output pulse.
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*
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* @return direction
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*/
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public byte getScanDirectionFlag() { |
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return scanDirectionFlag;
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} |
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/**
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* Get the edge of flight line data bit.
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*
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* @return edge of flight
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*/
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public byte getEdgeOfFlightLine() { |
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return edgeOfFlightLine;
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} |
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/**
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* Get a given classification during filter processing.
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*
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* @return classification
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*/
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public char getClassification() { |
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return classification;
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} |
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/**
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* Get angle at which the laser point was output from the laser system
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* including the roll of the aircraft. The scan angle is within 1
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* degree of accuracy from +90 to 90 degrees. The scan angle is an
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* angle based on 0 degrees being NADIR, end -90 degrees to the left
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* side of the aircraft in the direction of flight.
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*
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* @return scan angle rank
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*/
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public byte getScanAngleRank() { |
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return scanAngleRank;
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} |
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/**
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* Get file marker.
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* The file marker allows for the LAS flight-line based files
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* to be combined into single files with more than one flight-line.
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*
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* @return file marker
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*/
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public char getFileMarker() { |
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return fileMarker;
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} |
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/**
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* Get a bit field that is to be used at the users discretion.
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*
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* @return user bit field
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*/
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public int getUserBitField(){ |
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return UserBitField;
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} |
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/**
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* Get a bit size of point format
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*
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* @return sizeFormat
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*/
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public int getSizeFormat() { |
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return sizeFormat;
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} |
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// SET METHODS
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/**
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* set X value that is stored as integer.
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*
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* @param newx new value of x
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*/
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public void setX(int newx) { |
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x = newx; |
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} |
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/**
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* set Y value that is stored as integer.
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*
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* @param newy new value of y
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*/
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public void setY(int newy) { |
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y = newy; |
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} |
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/**
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* set Z value that is stored as integer.
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*
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* @param newz new value of z
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*/
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public void setZ(int newz) { |
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z = newz; |
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} |
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/**
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* Set the intensity value as the integer representation of the pulse
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* return magnitude. This value is optional and system specific
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*
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* @param inten new intensity
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*/
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public void setIntensity(int inten) { |
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try{
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if(inten >=0 && inten <= UNSIGNED_SHORT_MAX) { |
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intensity = inten; |
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} else {
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throw new OutOfRangeLidarException("Out of range of intensity"); |
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} |
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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 the return number.
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*
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* @param rn new pulse return number
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*/
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public void setReturnNumber(byte rn) { |
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try{
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if(rn>=0 && rn <= 7) { |
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returnNumber = rn; |
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} else {
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throw new OutOfRangeLidarException("Out of range of return number"); |
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} |
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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 total number of returns for a given pulse.
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*
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* @param nof new number of return
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*/
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public void setNumberOfReturn(byte nof) { |
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try{
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if(nof>=0 && nof <= 7) { |
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numberOfReturn = nof; |
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} else {
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throw new OutOfRangeLidarException("Out of range of number of return"); |
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} |
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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 direction at which the scanner mirror was traveling at the time
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* of the output pulse.
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*
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* @param sdf new direction
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*/
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public void setScanDirectionFlag(byte sdf) { |
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try{
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if(sdf>=0 && sdf<=1) { |
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scanDirectionFlag = sdf; |
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} else {
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throw new OutOfRangeLidarException("Out of range of scan direction flag"); |
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} |
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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 the edge of flight line data bit.
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*
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* @param eofl new edge of flight
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*/
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public void setEdgeOfFlightLine(byte eofl) { |
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try{
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if(eofl>=0 && eofl <= 1) { |
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edgeOfFlightLine = eofl; |
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} else {
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throw new OutOfRangeLidarException("Out of range of flight line"); |
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} |
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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 a given classification during filter processing.
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*
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* @return c new classification
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*/
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public void setClassification(char c) { |
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try{
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if(c>=0 && c<=255) { |
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classification = c; |
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} else {
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throw new OutOfRangeLidarException("Out of range of classification"); |
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} |
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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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/**
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* Set angle at which the laser point was output from the laser system
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* including the roll of the aircraft.
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*
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* @param sar new scan angle rank
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*/
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public void setScanAngleRank(byte sar) { |
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// try{
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// if(sar>=-90 && sar<=90)
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scanAngleRank = sar; |
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// else
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// throw new OutOfRangeLidarException("Out of range of scan angle rank");
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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 file marker.
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* The file marker allows for the LAS flight-line based files
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* to be combined into single files with more than one flight-line.
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*
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* @param fm new file marker
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*/
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public void setFileMarker(char fm) { |
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try{
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if(fm>=0 && fm<=255) { |
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fileMarker = fm; |
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} else {
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throw new OutOfRangeLidarException("Out of range of file marker"); |
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} |
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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 a bit field that be used at the users discretion.
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*
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* @param ubf new user bit field
|
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*/
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public void setUserBitField(int ubf) { |
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try{
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if(ubf>=0 && ubf <= UNSIGNED_SHORT_MAX) { |
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UserBitField = ubf; |
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} else {
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throw new OutOfRangeLidarException("Out of range of user bit field"); |
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} |
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} catch(OutOfRangeLidarException e) {
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|
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e.printStackTrace(); |
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} |
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} |
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/**
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* Read a point of LAS file
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*
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* @param input input file to read
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* @param Offset Offset to data
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* @param index index of points to read
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* @return true if success else return false
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*/
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public void readPoint(BigByteBuffer2 input, LidarHeader hdr, long index) { |
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try {
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|
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if(index>hdr.getNumPointsRecord() || index < 0) { |
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throw new UnexpectedPointException("Out of index"); |
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} |
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byte[] punto = new byte[getSizeFormat()]; |
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|
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input.position(hdr.getOffsetData()+getSizeFormat()*index); |
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input.get(punto); |
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setX(ByteUtilities.arr2Int(punto, 0));
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setY(ByteUtilities.arr2Int(punto, 4));
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setZ(ByteUtilities.arr2Int(punto, 8));
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setIntensity(ByteUtilities.arr2Unsignedshort(punto, 12));
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|
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|
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setReturnNumber((byte)(punto[14] & 0x07)); // 3 primeros bits del byte 14 |
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setNumberOfReturn((byte)((punto[14] & 0x38) >> 3)); // 3 siguintes bits |
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setScanDirectionFlag((byte)((punto[14] & 0x40) >> 6)); // 1 bit |
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setEdgeOfFlightLine((byte)((punto[14] & 0x80) >> 7)); // 1 bit |
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|
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setClassification((char)(punto[15] & 0XFF)); |
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setScanAngleRank((punto[16]));
|
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setFileMarker((char)(punto[17] & 0XFF)); |
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setUserBitField(ByteUtilities.arr2Unsignedshort(punto, 18));
|
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|
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} catch (UnexpectedPointException e) {
|
| 557 |
// TODO Auto-generated catch block
|
| 558 |
e.printStackTrace(); |
| 559 |
} |
| 560 |
} |
| 561 |
|
| 562 |
public Point2D.Double readPoint2D(BigByteBuffer2 input, LidarHeader hdr, long index){ |
| 563 |
|
| 564 |
try{
|
| 565 |
if(index>hdr.getNumPointsRecord() || index < 0) { |
| 566 |
throw new UnexpectedPointException("Out of index"); |
| 567 |
} |
| 568 |
|
| 569 |
byte[] punto = new byte[8]; |
| 570 |
|
| 571 |
input.position(hdr.getOffsetData()+getSizeFormat()*index); |
| 572 |
input.get(punto); |
| 573 |
|
| 574 |
setX(ByteUtilities.arr2Int(punto, 0));
|
| 575 |
setY(ByteUtilities.arr2Int(punto, 4));
|
| 576 |
|
| 577 |
return new Point2D.Double(getX()*hdr.getXScale()+hdr.getXOffset(), getY()*hdr.getYScale()+hdr.getYOffset()); |
| 578 |
|
| 579 |
} catch (UnexpectedPointException e) {
|
| 580 |
// TODO Auto-generated catch block
|
| 581 |
e.printStackTrace(); |
| 582 |
} |
| 583 |
return null; |
| 584 |
} |
| 585 |
|
| 586 |
/**
|
| 587 |
* Read a x, y and z in point of LAS file
|
| 588 |
*
|
| 589 |
* @param input input buffer to read
|
| 590 |
* @param Offset Offset to data
|
| 591 |
* @param index index of points to read
|
| 592 |
* @return true if success else return false
|
| 593 |
*/
|
| 594 |
public void readPoint3D(BigByteBuffer2 input, LidarHeader hdr, long index) throws UnexpectedPointException { |
| 595 |
|
| 596 |
try{
|
| 597 |
if(index>hdr.getNumPointsRecord() || index < 0) { |
| 598 |
throw new UnexpectedPointException("Out of index"); |
| 599 |
} |
| 600 |
|
| 601 |
byte[] punto = new byte[12]; |
| 602 |
|
| 603 |
input.position(hdr.getOffsetData()+getSizeFormat()*index); |
| 604 |
input.get(punto); |
| 605 |
|
| 606 |
setX(ByteUtilities.arr2Int(punto, 0));
|
| 607 |
setY(ByteUtilities.arr2Int(punto, 4));
|
| 608 |
setZ(ByteUtilities.arr2Int(punto, 8));
|
| 609 |
|
| 610 |
} catch (UnexpectedPointException e) {
|
| 611 |
// TODO Auto-generated catch block
|
| 612 |
e.printStackTrace(); |
| 613 |
} |
| 614 |
} |
| 615 |
|
| 616 |
/**
|
| 617 |
* get field value by index:
|
| 618 |
*
|
| 619 |
* 0 return X
|
| 620 |
* 1 return Y
|
| 621 |
* 2 return Z
|
| 622 |
* 3 return intensity
|
| 623 |
* 4 return returnNumber
|
| 624 |
* 5 return numberOfReturn
|
| 625 |
* 6 return scanDirectionFlag
|
| 626 |
* 7 return edgeOfFlightLine
|
| 627 |
* 8 return classification
|
| 628 |
* 9 return scanAngleRank
|
| 629 |
* 10 return fileMarker
|
| 630 |
* 11 return UserBitField
|
| 631 |
*
|
| 632 |
* @param bb byte buffer of data
|
| 633 |
* @param indexField index of field
|
| 634 |
* @param hdr LiDAR header
|
| 635 |
* @param index asked point index. (row)
|
| 636 |
* @return Value of row and column indicated
|
| 637 |
*/
|
| 638 |
public Object getFieldValueByIndex(BigByteBuffer2 bb, int indexField, |
| 639 |
LidarHeader hdr, long index) {
|
| 640 |
|
| 641 |
readPoint(bb, hdr, index); |
| 642 |
|
| 643 |
switch (indexField) {
|
| 644 |
case 0: |
| 645 |
return getX() * hdr.getXScale() + hdr.getXOffset();
|
| 646 |
case 1: |
| 647 |
return getY() * hdr.getYScale() + hdr.getYOffset();
|
| 648 |
|
| 649 |
case 2: |
| 650 |
return getZ() * hdr.getZScale() + hdr.getZOffset();
|
| 651 |
|
| 652 |
case 3: |
| 653 |
return getIntensity();
|
| 654 |
|
| 655 |
case 4: |
| 656 |
return getReturnNumber();
|
| 657 |
|
| 658 |
case 5: |
| 659 |
return getNumberOfReturn();
|
| 660 |
|
| 661 |
case 6: |
| 662 |
return getScanDirectionFlag();
|
| 663 |
|
| 664 |
case 7: |
| 665 |
return getEdgeOfFlightLine();
|
| 666 |
|
| 667 |
case 8: |
| 668 |
return getClassification();
|
| 669 |
|
| 670 |
case 9: |
| 671 |
return getScanAngleRank();
|
| 672 |
|
| 673 |
case 10: |
| 674 |
|
| 675 |
return getFileMarker();
|
| 676 |
|
| 677 |
case 11: |
| 678 |
return getUserBitField();
|
| 679 |
|
| 680 |
} |
| 681 |
|
| 682 |
return null; |
| 683 |
} |
| 684 |
|
| 685 |
public Object getFieldValueByName(BigByteBuffer2 bb, String nameField, |
| 686 |
LidarHeader hdr, long index) {
|
| 687 |
|
| 688 |
readPoint(bb, hdr, index); |
| 689 |
|
| 690 |
if(nameField.equalsIgnoreCase("X")) { |
| 691 |
return getX() * hdr.getXScale() + hdr.getXOffset();
|
| 692 |
} else if(nameField.equalsIgnoreCase("Y")) { |
| 693 |
return getY() * hdr.getYScale() + hdr.getYOffset();
|
| 694 |
} else if(nameField.equalsIgnoreCase("Z")) { |
| 695 |
return getZ() * hdr.getZScale() + hdr.getZOffset();
|
| 696 |
} else if(nameField.equalsIgnoreCase("Intensity")) { |
| 697 |
return getIntensity();
|
| 698 |
} else if(nameField.equalsIgnoreCase("Return_Number")) { |
| 699 |
return getReturnNumber();
|
| 700 |
} else if(nameField.equalsIgnoreCase("Number_of_Returns")) { |
| 701 |
return getNumberOfReturn();
|
| 702 |
} else if(nameField.equalsIgnoreCase("Scan_Direction_Flag")) { |
| 703 |
return getScanDirectionFlag();
|
| 704 |
} else if(nameField.equalsIgnoreCase("Edge_of_Flight_Line")) { |
| 705 |
return getEdgeOfFlightLine();
|
| 706 |
} else if(nameField.equalsIgnoreCase("Classification")) { |
| 707 |
return getClassification();
|
| 708 |
} else if(nameField.equalsIgnoreCase("Scan_Angle_Rank")) { |
| 709 |
return getScanAngleRank();
|
| 710 |
} else if(nameField.equalsIgnoreCase("File_Marker")) { |
| 711 |
return getFileMarker();
|
| 712 |
} else if(nameField.equalsIgnoreCase("User_Bit_Field")) { |
| 713 |
return getUserBitField();
|
| 714 |
} |
| 715 |
|
| 716 |
return null; |
| 717 |
} |
| 718 |
|
| 719 |
|
| 720 |
public ContainerColumnDescription getColumnsDescription(ContainerColumnDescription fields) {
|
| 721 |
|
| 722 |
fields.add("X", ColumnDescription.DOUBLE, 20, 3, 0.0); |
| 723 |
fields.add("Y", ColumnDescription.DOUBLE, 20, 3, 0.0); |
| 724 |
fields.add("Z", ColumnDescription.DOUBLE, 20, 3, 0.0); |
| 725 |
fields.add("Intensity", ColumnDescription.INT, 5, 0, 0); |
| 726 |
fields.add("Return_Number", ColumnDescription.BYTE, 1, 0, 0); |
| 727 |
fields.add("Number_of_Returns", ColumnDescription.BYTE, 1, 0, 0); |
| 728 |
fields.add("Scan_Direction_Flag", ColumnDescription.BYTE, 1, 0, 0); |
| 729 |
fields.add("Edge_of_Flight_Line", ColumnDescription.BYTE, 1, 0, 0); |
| 730 |
fields.add("Classification", ColumnDescription.BYTE, 1, 0, 0); |
| 731 |
fields.add("Scan_Angle_Rank", ColumnDescription.INT, 3, 0, 0); |
| 732 |
fields.add("File_Marker", ColumnDescription.INT, 3, 0, 0); |
| 733 |
fields.add("User_Bit_Field", ColumnDescription.INT, 10, 0, 0); |
| 734 |
|
| 735 |
return fields;
|
| 736 |
} |
| 737 |
|
| 738 |
|
| 739 |
public void WritePoint(ByteBuffer bb) { |
| 740 |
|
| 741 |
byte auxByte;
|
| 742 |
byte[] punto = new byte[getSizeFormat()]; |
| 743 |
|
| 744 |
// X bytes 0-4
|
| 745 |
ByteUtilities.int2Arr(getX(), punto, 0);
|
| 746 |
|
| 747 |
// Y bytes 4-8
|
| 748 |
ByteUtilities.int2Arr(getY(), punto, 4);
|
| 749 |
|
| 750 |
// bytes 8-12
|
| 751 |
ByteUtilities.int2Arr(getZ(), punto, 8);
|
| 752 |
|
| 753 |
// bytes 12-14
|
| 754 |
ByteUtilities.unsignedShort2Arr(getIntensity(), punto, 12);
|
| 755 |
|
| 756 |
// byte 14
|
| 757 |
auxByte = getReturnNumber(); |
| 758 |
auxByte |= (byte)((getNumberOfReturn()) << 3); |
| 759 |
auxByte |= (byte)((getScanDirectionFlag()) << 6); |
| 760 |
auxByte |= (byte)((getEdgeOfFlightLine()) << 7); |
| 761 |
punto[14] = auxByte;
|
| 762 |
|
| 763 |
// byte 15
|
| 764 |
punto[15] = (byte)((getClassification() & 0xFF)); |
| 765 |
|
| 766 |
// byte 16
|
| 767 |
punto[16] = (byte)((getScanAngleRank() & 0xFF)); |
| 768 |
|
| 769 |
// byte 17
|
| 770 |
punto[17] = (byte)((getFileMarker() & 0xFF)); |
| 771 |
|
| 772 |
// bytes 18-20
|
| 773 |
ByteUtilities.unsignedShort2Arr(getUserBitField(), punto, 18);
|
| 774 |
|
| 775 |
|
| 776 |
bb.put(punto); |
| 777 |
} |
| 778 |
|
| 779 |
/*
|
| 780 |
* Set Point from a row
|
| 781 |
*/
|
| 782 |
public void setPoint(Object[] row, LidarHeader hdr) { |
| 783 |
double auxX = ((Double) (row[0])); |
| 784 |
double auxY = ((Double) (row[1])); |
| 785 |
double auxZ = ((Double) (row[2])); |
| 786 |
|
| 787 |
setX((int) ((auxX - hdr.getXOffset()) / hdr.getXScale()));
|
| 788 |
setY((int) ((auxY - hdr.getYOffset()) / hdr.getYScale()));
|
| 789 |
setZ((int) ((auxZ - hdr.getZOffset()) / hdr.getZScale()));
|
| 790 |
|
| 791 |
setIntensity((Integer) row[3]); |
| 792 |
setReturnNumber(((Integer) row[4]).byteValue()); |
| 793 |
setNumberOfReturn(((Integer) (row[5])).byteValue()); |
| 794 |
setScanDirectionFlag(((Integer) (row[6])).byteValue()); |
| 795 |
setEdgeOfFlightLine(((Integer) (row[7])).byteValue()); |
| 796 |
setClassification((char) (((Integer) (row[8])).byteValue() & 0xFF)); |
| 797 |
setScanAngleRank(((Integer) (row[9])).byteValue()); |
| 798 |
setFileMarker((char) (((Integer) (row[10])).byteValue() & 0xFF)); |
| 799 |
setUserBitField(((Integer) (row[11]))); |
| 800 |
} |
| 801 |
} |