[OSM-dev] OpenstreetMap Trace Analysys

[John Robert Peterson]

if it's just the highways you want -- the data could easilly be filtered on
velocity -- include only the stuff thats >30mph. (i've done this in the
past, and it's a bit of a pain to do, but it's simple once you have it set
up)

in that case, all the superfulus stuff, as well as camp sites, tracks,
walking paths, and other stuff with go almost completly. the only bad data
left will be where there is a large jump in the data while stationary due to
gps confusion, this should be rare enough that it won't be an issue. adding
a HDOP filter of 4 should solve most of it.

it all depends on how twitchy the doners are -- if they are paranoid about
anyone finding out anything, the data is totally unusable as even vauge
direction of travel gives some hints about the camp site locations. -- if
they just don't want "wide publicity" of all the locations, you are good to
upload the data raw. I suspect the answer is somewhere in the middle.

I'd be happy to help with filting the data if you like.

JR

2009/10/14 John Smith <deltafoxtrot256 at gmail.com>

> 2009/10/14 Richard Weait <richard at weait.com>:
> > Perhaps you will decide that the tracks are not worth contributing.
>
> They were worth contributing, there was large sections of highways not
> previously mapped.
>
> > Your donor could do this and edit OSM as well.  He'll have context
> > from his direct experience that nobody else might be able to extract
> > from his track files.  Importing data is cool.  Creating new mappers
> > is better.
>
> Just because they can drive around with a GPS that logs doesn't mean
> they are capable or willing to do anything else. I've already
> vectorised most of the data that hasn't previously been uploaded to
> OSM so that side of things is done, it's just the limiations on what I
> can do with the GPX files that is the issue.
>
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