Re: [Gpsbabel-misc] KML - recreating tracklog

[Robert L. <rob...@gm...>]

You're correct, Ben; it's a lossy transformation.

On Mon, Feb 25, 2008 at 5:01 PM, Ben Barker <ben...@gm...>
wrote:

> I used a set of regular expressions to replace the <description> tage
> with standard KML <timestamps>, because the changelog seemed to
> suggest this might help:
>

> "
> 2007-12-13              Read timestamps from KML Placemarks when we can.
> (TimeRanges are ignored.)


Welcome to one of the subtle points of KML.

There are Placemarks.  We can read time from those.  They have icons, might
be clicakable, have ballons, etc.

There are polylines.   They have none of those things.


 I processed it using "gpsbabel.exe -t -i kml -f
log.kml-xnuketypes,waypoints  -o gpx -F
> log.gpx" but the resulting gpx file hadno <time> tags. Hmmm...


You nuked the very component that held the timestamps, albeit in an
inconvenient place.

You probably want to use the 'type convert' filter to change the
log.kml(the one that you rewrote to have the timestamp in the balloon
moved into)
to convert those waypoints (placemarks) into trackpoints.  You might have to
use additional options to resplit the tracks based on time or distance or
such.

In short, you're going to have to want this fairly badly...

RJL