[OSM-talk] Straw Poll - Disk space used by OSM photos/audio

Jo ml at winfix.it
Thu Feb 14 22:25:39 GMT 2008


Robert Vollmert schreef:
> Hello,
>
> On Feb 13, 2008 9:41 AM, Gregory <nomoregrapes at googlemail.com> wrote:
>   
>> Maybe (I possibly thought this when I started) so nobody knows  
>> where I live/start, but I could easily not worry about that.
>>     
>
>
> On Feb 13, 2008, at 19:14, Karl Newman wrote:
>   
>> Yeah, I've been collecting traces, too, but not yet uploading them  
>> because I don't really want the cluster of points around my house.  
>> I found a graphical editor that can edit traces (GPSTrackMaker) but  
>> I haven't had time to edit them for uploading yet.
>>     
>
> I believe gpsbabel supports this kind of operation:
>
> gpsbabel -i gpx -f raw.gpx -x  
> radius,exclude,distance=1.5M,lat=30.0,lon=-90.0 -o gpx -F filtered.gpx
>
> should remove all points within 1 1/2 miles of the specified lat/lon  
> pair from raw.gpx, saving the output in filtered.gpx. (I haven't  
> tested this.)
>
> See also http://www.gpsbabel.org/htmldoc-development/ 
> filter_radius.html .
>
> Would it make sense to add these kind of filters to the GPX upload  
> facility to encourage more people to upload their traces? I'd also  
> like some automatic time shift (to say the first of the month, at  
> 0:00)...
>   
Of course if you use the actual position of your house as the center of 
that radius, it would still be trivial to find where you live. That's 
why I tried to exclude points using a polygon (saved as a text file). 
This didn't seem to work though.
I like the idea of timeshifting the timestamps.

Polyglot




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