ADD: new track message, Entity class and Position class
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Henry Winkel
248
libs/geographiclib/cgi-bin/GeoConvert.cgi
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248
libs/geographiclib/cgi-bin/GeoConvert.cgi
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#! /bin/sh
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#
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# GeoConvert.cgi
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# cgi script for geographic coordinate conversion
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#
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# Copyright (c) Charles Karney (2011-2022) <charles@karney.com> and
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# licensed under the MIT/X11 License. For more information, see
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# https://geographiclib.sourceforge.io/
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. ./utils.sh
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OPTION=`lookupkey "$QUERY_STRING" option`
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if test "$OPTION" = Reset; then
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INPUT=
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else
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INPUT=`lookupcheckkey "$QUERY_STRING" input`
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ZONE=`lookupkey "$QUERY_STRING" zone`
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PREC=`lookupkey "$QUERY_STRING" prec`
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fi
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test "$ZONE" || ZONE=-3
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test "$PREC" || PREC=0
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INPUTENC=`encodevalue "$INPUT"`
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EXECDIR=../bin
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COMMAND="GeoConvert"
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VERSION=`$EXECDIR/$COMMAND --version | cut -f4 -d" "`
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F='<font color="Blue">'
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G='</font>'
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test $PREC = 0 || COMMAND="$COMMAND -p $PREC"
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LOCG=
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LOCD=
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LOCU=
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LOCM=
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GEOH=
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set -o pipefail
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if test "$INPUT"; then
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LOCG=`echo $INPUT | $EXECDIR/$COMMAND | head -1`
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if test $? -eq 0; then
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GEOH=`echo $INPUT | $EXECDIR/$COMMAND -p 1 | head -1`
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LOCG=`geohack $GEOH $LOCG Blue`
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LOCD=\(`echo $INPUT | $EXECDIR/$COMMAND -d | head -1`\)
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case $ZONE in
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-3 ) ;;
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-2 ) COMMAND="$COMMAND -t";;
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-1 ) COMMAND="$COMMAND -s";;
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* ) COMMAND="$COMMAND -z $ZONE"
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esac
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LOCU=`echo $INPUT | $EXECDIR/$COMMAND -u | head -1`
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LOCM=`echo $INPUT | $EXECDIR/$COMMAND -m | head -1`
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fi
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# echo `date +"%F %T"` "$COMMAND: $INPUT" >> ../persistent/utilities.log
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fi
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echo Content-type: text/html
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echo
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cat <<EOF
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<html>
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<head>
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<title>
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Online geographic coordinate converter
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</title>
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<meta name="description"
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content="Online geographic coordinate converter" />
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<meta name="author" content="Charles F. F. Karney" />
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<meta name="keywords"
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content="geographic coordinate conversions,
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geographic coordinates,
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latitude and longitude,
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degrees minutes seconds,
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universal transverse Mercator, UTM,
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easting northing and zone,
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universal polar sterographic, UPS,
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military grid reference system, MGRS,
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online calculator,
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WGS84 ellipsoid,
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GeographicLib" />
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</head>
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<body>
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<h3>
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Online geographic coordinate conversions using the
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<a href="https://geographiclib.sourceforge.io/C++/doc/GeoConvert.1.html">
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GeoConvert</a> utility
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</h3>
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<form action="/cgi-bin/GeoConvert" method="get">
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<p>
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Location
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(ex. «<tt>33.33 44.4</tt>»,
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«<tt>33d19'47"N 44d23.9'E</tt>»,
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«<tt>38SMB4488</tt>»,
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«<tt>38n 444000 3688000</tt>»):<br>
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<input type=text name="input" size=40 value="$INPUTENC">
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</p>
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<table>
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<tr>
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<td>
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Output zone:<br>
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<select name="zone" size=1>
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EOF
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(
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cat <<EOF
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-3 Match input or standard
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-1 Standard UPS/UTM zone
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0 UPS
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-2 Standard UTM zone
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EOF
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) | while read z name; do
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SELECTED=
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test "$z" = "$ZONE" && SELECTED=SELECTED
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echo "<option $SELECTED value=\"$z\">$name</option>"
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done
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for ((z=1; z<=60; ++z)); do
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SELECTED=
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test "$z" = "$ZONE" && SELECTED=SELECTED
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name="UTM zone $z"
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echo "<option $SELECTED value=\"$z\">$name</option>"
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done
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cat <<EOF
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</select>
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</td>
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<td>
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Output precision:<br>
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<select name="prec" size=1>
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EOF
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(
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cat <<EOF
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-5 100km 1d
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-4 10km 0.1d
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-3 1km 0.01d 1'
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-2 100m 0.001d 0.1'
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-1 10m 0.0001d 1"
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0 1m 0.00001d 0.1"
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1 100mm 0.01"
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2 10mm 0.001"
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3 1mm 0.0001"
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4 100um 0.00001"
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5 10um 0.000001"
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6 1um 0.0000001"
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7 100nm 0.00000001"
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8 10nm 0.000000001"
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9 1nm 0.0000000001"
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10 0.00000000001"
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EOF
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) | while read p desc; do
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SELECTED=
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test "$p" = "$PREC" && SELECTED=SELECTED
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echo "<option $SELECTED value=\"$p\">$desc</option>"
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done
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cat <<EOF
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</select>
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</td>
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</tr>
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</table>
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<p>
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Select action:<br>
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<input type="submit" name="option" value="Submit">
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<input type="submit" name="option" value="Reset">
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</p>
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<p>
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Results:
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<font size="4"><pre>
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input = `encodevalue "$INPUT"`
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lat lon = $F$LOCG `convertdeg "$LOCD"`$G
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<a href="https://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_system">UTM</a>/<a href="https://en.wikipedia.org/wiki/Universal_Polar_Stereographic">UPS</a> = $F`encodevalue "$LOCU"`$G
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<a href="https://en.wikipedia.org/wiki/Military_grid_reference_system">MGRS</a> = $F`encodevalue "$LOCM"`$G</pre></font>
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</p>
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</form>
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<hr>
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<p>
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<a href="https://geographiclib.sourceforge.io/C++/doc/GeoConvert.1.html">
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GeoConvert (version $VERSION)</a>
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converts between geographic (latitude and longitude) coordinates,
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<a href="https://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_system">
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universal transverse Mercator (UTM)</a> or
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<a href="https://en.wikipedia.org/wiki/Universal_Polar_Stereographic">
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universal polar stereographic (UPS)</a> coordinates, and the
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<a href="https://en.wikipedia.org/wiki/Military_grid_reference_system">
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military grid reference system (MGRS)</a>.
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Examples of legal geographic locations are (these all refer to roughly
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the same place, Cape Morris Jesup on the northern tip of Greenland):
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<pre>
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Latitude and longitude: MGRS:
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83.627 -32.664 24XWT783908
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W32d40 N83d37.6 YUB17770380
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83°37'39"N 32°39'52"W UTM:
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83:37:39 32:39:52W 25n 504158 9286521
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32:39.9W 83:37.6N 430000 9290000 26n
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32:40W+0:0:6 83:37.6 UPS:
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32:40W+0:0:6 83:38-0:0.4 n 1617772 1403805</pre>
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<b>Notes:</b>
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<ul>
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<li>
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The letter in following the zone number in the UTM position is
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a hemisphere designator (n or s) and <em>not</em> the MGRS
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latitude band letter. "north" or "south" can also be used,
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e.g., 25north.
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<li>
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MGRS coordinates are taken to refer to <em>grid squares</em>
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(<em>not</em> to the intersections of grid lines). Thus in UTM
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zone 38n, the square area with easting in [444 km, 445 km) and
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northing in [3688 km, 3689 km) corresponds to the MGRS square
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38SMB4488 (at 1 km precision).
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<ul>
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<li>
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When an MGRS coordinate is read, a representative point
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within the grid square, namely, the <em>center</em>, is
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returned.
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<li>
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The MGRS easting and northing are obtained
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by <em>truncation</em> to the requested precision
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(<em>not</em> rounding).
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</ul>
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<li>
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Usually <em>Output zone</em> should be <em>Match input or
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standard</em>. If the latitude and longitude are given, the
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standard UPS and UTM zone rules are applied; otherwise the
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UPS/UTM selection and the UTM zone match the input. The other
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choices let you override this selection.
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</ul>
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</p>
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<p>
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<a href="https://geographiclib.sourceforge.io/C++/doc/GeoConvert.1.html">
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GeoConvert</a>,
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which is a simple wrapper of the
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<a href="https://geographiclib.sourceforge.io/C++/doc/classGeographicLib_1_1GeoCoords.html">
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GeographicLib::GeoCoords</a> class,
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is one of the utilities provided
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with <a href="https://geographiclib.sourceforge.io/">
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GeographicLib</a>.
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This web interface illustrates a subset of its capabilities. If
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you wish to use GeoConvert directly,
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<a href="https://sourceforge.net/projects/geographiclib/files/distrib-C++">
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download</a>
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and compile GeographicLib.
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</p>
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<hr>
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<address>Charles Karney
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<a href="mailto:charles@karney.com"><charles@karney.com></a>
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(2022-04-10)</address>
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<a href="https://geographiclib.sourceforge.io">
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GeographicLib home
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</a>
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</body>
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</html>
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EOF
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