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Re: [mat-wg] suggestions for atlas service

  • To: Robert Kisteleki robert@localhost
  • From: Piotr Strzyzewski <Piotr.Strzyzewski@localhost
  • Date: Wed, 18 May 2011 12:26:30 +0200
  • Cc: mat-wg@localhost
  • Organization: Silesian University of Technology, Computer Center

On Wed, May 18, 2011 at 12:19:28PM +0200, Robert Kisteleki wrote:
> >> Background information: we'd rather not publish the exact geo-coordinates
> >> the hosts put in, because of privacy concerns. So what we do now is that
> >> whenever we display probes on a map, we round the geo-coordinates to two
> >> digits. This introduces a "random" error of up to 1000 meters or so. (If 
> >> you
> >> zoom in on Amsterdam, where we have enough probes, you'll see that all
> >> probes are aligned into a neat, sparse matrix; it's because of this.)
> > 
> > It seems to be relatively easy to round the geo-coordinates to two
> > digits (as you do it right now) and then add some random number from
> > 0.00000 to 0.00999 to it.
> Yes, but it would also make the probes dance around at each page load. I'm
> sure it would be entertaining, but not so sure about the usefulness :-)

I was rather thinking about some random, but fixed (put into database)
number for each probe.

OTOH it would be nice to see a movie from such a dance. ;-)


gucio -> Piotr Strzyżewski
E-mail: Piotr.Strzyzewski@localhost