Does not gpsbabel have such an option:<br><br><a href="http://www.gpsbabel.org/htmldoc-development/filter_track.html">http://www.gpsbabel.org/htmldoc-development/filter_track.html</a><br><br>and look for the merge option.
<br><br><br><br>I have not used this, but it might be what you are looking for.<br><br>HTH<br><br>Ludwig<br><br><br><div><span class="gmail_quote">On 1/23/07, <b class="gmail_sendername">Damian Sulewski</b> <<a href="mailto:Damian.Sulewski@uni-dortmund.de">
Damian.Sulewski@uni-dortmund.de</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Would be great to have such a program.<br>
You could even drive the same road several times, at diferent days, and<br>then take the avarage to have a better position of this road.<br><br>Greetings,<br>Damian<br><br>Am Dienstag, den 23.01.2007, 19:08 +0000 schrieb SteveC:
<br>> I want a tool which will take two or more GPX files (say, from two GPS<br>> units in a car - one at the front, one at the back) and will merge them<br>> with simple rules<br>><br>> 1) If there's only one point for a timestamp use that
<br>> 2) If there's more than one then average the position<br>><br>> and spit out a 3rd, averaged, GPX.<br>><br>> A poor mans differential GPS perhaps, but also I've seen a lot of<br>> dropout from putting a GPS on a car dashboard and figure that putting
<br>> one at the back too (which will see a different set of satellites) might<br>> help.<br>><br>> have fun,<br>><br>> SteveC <a href="mailto:steve@asklater.com">steve@asklater.com</a> <a href="http://www.asklater.com/steve/">
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