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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>GPS Tags</title>
<link rel=stylesheet type='text/css' href='style.css' title='Style'>
</head>
<body>
<h2 class=top>GPS Tags</h2>
<p>
These GPS tags are part of the EXIF standard, and are stored in a separate
IFD within the EXIF information.</p>
<p>ExifTool is very flexible about the input format when writing lat/long
coordinates, and will accept from 1 to 3 floating point numbers (for decimal
degrees, degrees and minutes, or degrees, minutes and seconds) separated by
just about anything, and will format them properly according to the EXIF
specification.</p>
<p>Some GPS tags have values which are fixed-length strings. For these, the
indicated string lengths include a null terminator which is added
automatically by ExifTool. Remember that the descriptive values are used
when writing (eg. 'Above Sea Level', not '0') unless the print conversion is
disabled (with '-n' on the command line or the PrintConv option in the API,
or by suffixing the tag name with a <code>#</code> character).</p>
<p>When adding GPS information to an image, it is important to set all of the
following tags: GPSLatitude, GPSLatitudeRef, GPSLongitude, GPSLongitudeRef,
and GPSAltitude and GPSAltitudeRef if the altitude is known. ExifTool will
write the required GPSVersionID tag automatically if new a GPS IFD is added
to an image.
</p>
<blockquote>
<table class=frame><tr><td>
<table class=inner cellspacing=1>
<tr class=h><th>Tag ID</th><th>Tag Name</th>
<th>Writable</th><th>Values / <span class=n>Notes</span></th></tr>
<tr>
<td title='0x0000 = 0'>0x0000</td>
<td>GPSVersionID</td>
<td class=c title=' : = Mandatory'>int8u[4]:</td>
<td> </td></tr>
<tr class=b>
<td title='0x0001 = 1'>0x0001</td>
<td>GPSLatitudeRef</td>
<td class=c>string[2]</td>
<td><span class=s><span class=n>(tags 0x0001-0x0006 used for camera location according to MWG 2.0. ExifTool
will also accept a number when writing GPSLatitudeRef, positive for north
latitudes or negative for south, or a string ending in N or S)</span>
<br>'N' = North
<br>'S' = South</span></td></tr>
<tr>
<td title='0x0002 = 2'>0x0002</td>
<td>GPSLatitude</td>
<td class=c>rational64u[3]</td>
<td> </td></tr>
<tr class=b>
<td title='0x0003 = 3'>0x0003</td>
<td>GPSLongitudeRef</td>
<td class=c>string[2]</td>
<td><span class=s><span class=n>(ExifTool will also accept a number when writing this tag, positive for east
longitudes or negative for west, or a string ending in E or W)</span>
<br>'E' = East
<br>'W' = West</span></td></tr>
<tr>
<td title='0x0004 = 4'>0x0004</td>
<td>GPSLongitude</td>
<td class=c>rational64u[3]</td>
<td> </td></tr>
<tr class=b>
<td title='0x0005 = 5'>0x0005</td>
<td>GPSAltitudeRef</td>
<td class=c>int8u</td>
<td><span class=s><span class=n>(ExifTool will also accept a signed number when writing this tag, beginning
with "+" for above sea level, or "-" for below)</span>
<br>0 = Above Sea Level
<br>1 = Below Sea Level</span></td></tr>
<tr>
<td title='0x0006 = 6'>0x0006</td>
<td>GPSAltitude</td>
<td class=c>rational64u</td>
<td> </td></tr>
<tr class=b>
<td title='0x0007 = 7'>0x0007</td>
<td>GPSTimeStamp</td>
<td class=c>rational64u[3]</td>
<td><span class=s><span class=n>(UTC time of GPS fix. When writing, date is stripped off if present, and
time is adjusted to UTC if it includes a timezone)</span></span></td></tr>
<tr>
<td title='0x0008 = 8'>0x0008</td>
<td>GPSSatellites</td>
<td class=c>string</td>
<td> </td></tr>
<tr class=b>
<td title='0x0009 = 9'>0x0009</td>
<td>GPSStatus</td>
<td class=c>string[2]</td>
<td><span class=s>'A' = Measurement Active
<br>'V' = Measurement Void</span></td></tr>
<tr>
<td title='0x000a = 10'>0x000a</td>
<td>GPSMeasureMode</td>
<td class=c>string[2]</td>
<td><span class=s>2 = 2-Dimensional Measurement
<br>3 = 3-Dimensional Measurement</span></td></tr>
<tr class=b>
<td title='0x000b = 11'>0x000b</td>
<td>GPSDOP</td>
<td class=c>rational64u</td>
<td> </td></tr>
<tr>
<td title='0x000c = 12'>0x000c</td>
<td>GPSSpeedRef</td>
<td class=c>string[2]</td>
<td><span class=s>'K' = km/h
<br>'M' = mph
<br>'N' = knots</span></td></tr>
<tr class=b>
<td title='0x000d = 13'>0x000d</td>
<td>GPSSpeed</td>
<td class=c>rational64u</td>
<td> </td></tr>
<tr>
<td title='0x000e = 14'>0x000e</td>
<td>GPSTrackRef</td>
<td class=c>string[2]</td>
<td><span class=s>'M' = Magnetic North
<br>'T' = True North</span></td></tr>
<tr class=b>
<td title='0x000f = 15'>0x000f</td>
<td>GPSTrack</td>
<td class=c>rational64u</td>
<td> </td></tr>
<tr>
<td title='0x0010 = 16'>0x0010</td>
<td>GPSImgDirectionRef</td>
<td class=c>string[2]</td>
<td><span class=s>'M' = Magnetic North
<br>'T' = True North</span></td></tr>
<tr class=b>
<td title='0x0011 = 17'>0x0011</td>
<td>GPSImgDirection</td>
<td class=c>rational64u</td>
<td> </td></tr>
<tr>
<td title='0x0012 = 18'>0x0012</td>
<td>GPSMapDatum</td>
<td class=c>string</td>
<td> </td></tr>
<tr class=b>
<td title='0x0013 = 19'>0x0013</td>
<td>GPSDestLatitudeRef</td>
<td class=c>string[2]</td>
<td><span class=s><span class=n>(tags 0x0013-0x001a used for subject location according to MWG 2.0)</span>
<br>'N' = North
<br>'S' = South</span></td></tr>
<tr>
<td title='0x0014 = 20'>0x0014</td>
<td>GPSDestLatitude</td>
<td class=c>rational64u[3]</td>
<td> </td></tr>
<tr class=b>
<td title='0x0015 = 21'>0x0015</td>
<td>GPSDestLongitudeRef</td>
<td class=c>string[2]</td>
<td><span class=s>'E' = East
<br>'W' = West</span></td></tr>
<tr>
<td title='0x0016 = 22'>0x0016</td>
<td>GPSDestLongitude</td>
<td class=c>rational64u[3]</td>
<td> </td></tr>
<tr class=b>
<td title='0x0017 = 23'>0x0017</td>
<td>GPSDestBearingRef</td>
<td class=c>string[2]</td>
<td><span class=s>'M' = Magnetic North
<br>'T' = True North</span></td></tr>
<tr>
<td title='0x0018 = 24'>0x0018</td>
<td>GPSDestBearing</td>
<td class=c>rational64u</td>
<td> </td></tr>
<tr class=b>
<td title='0x0019 = 25'>0x0019</td>
<td>GPSDestDistanceRef</td>
<td class=c>string[2]</td>
<td><span class=s>'K' = Kilometers
<br>'M' = Miles
<br>'N' = Nautical Miles</span></td></tr>
<tr>
<td title='0x001a = 26'>0x001a</td>
<td>GPSDestDistance</td>
<td class=c>rational64u</td>
<td> </td></tr>
<tr class=b>
<td title='0x001b = 27'>0x001b</td>
<td>GPSProcessingMethod</td>
<td class=c>undef</td>
<td><span class=s><span class=n>(values of "GPS", "CELLID", "WLAN" or "MANUAL" by the EXIF spec.)</span></span></td></tr>
<tr>
<td title='0x001c = 28'>0x001c</td>
<td>GPSAreaInformation</td>
<td class=c>undef</td>
<td> </td></tr>
<tr class=b>
<td title='0x001d = 29'>0x001d</td>
<td>GPSDateStamp</td>
<td class=c>string[11]</td>
<td><span class=s><span class=n>(when writing, time is stripped off if present, after adjusting date/time to
UTC if time includes a timezone. Format is YYYY:mm:dd)</span></span></td></tr>
<tr>
<td title='0x001e = 30'>0x001e</td>
<td>GPSDifferential</td>
<td class=c>int16u</td>
<td><span class=s>0 = No Correction
<br>1 = Differential Corrected</span></td></tr>
<tr class=b>
<td title='0x001f = 31'>0x001f</td>
<td>GPSHPositioningError</td>
<td class=c>rational64u</td>
<td> </td></tr>
</table></td></tr></table></blockquote>
<hr>
(This document generated automatically by Image::ExifTool::BuildTagLookup)
<br><i>Last revised Jul 7, 2017</i>
<p class=lf><a href='index.html'><-- ExifTool Tag Names</a></p>
</body>
</html>
|
