[OSM-dev] indoor wifi geopositionning - openstreetmap precision, collaborators?

Jonathan-David SCHRODER jonathan.schroder at gmail.com
Mon Nov 30 05:21:47 GMT 2009


Hello,
could someone add an account named geopard on the old server for our project
?
I added a request line for it.
http://wiki.openstreetmap.org/wiki/Dev_Server_Account

Our intended use for the server is the following :
draw indoor stuff in it thanks to JOSM
download that indoor that + its openstreetmap surroundings to display that
on mobile applications

we basically just want to do prototyping and this would postpone our
deadline from having our own OSM toolchain setup on a dedicated server.

Our project will be open source and its project page is
http://sourceforge.net/projects/geopard (although there's nothing on it for
now ; we're doing mainly design stuff for now in a dropbox).

We are a team of 6 students from ECE Paris university in France, in 5th year
majoring in ITC (=Master 2 in EU).

Thanks in advance,
Jonathan

On Mon, Nov 30, 2009 at 5:54 AM, Jonathan-David SCHRODER <
jonathan.schroder at gmail.com> wrote:

> Ok thank you very much. I didn't know that openstreetmap site, API and core
> db interface were in ruby.
> Thank you for that piece that proves for a sufficient database storage
> precision for our indoor mapping project !!!
>
> This is cool and both Lars and you answered quickly thanks.
>
> Jonathan
>
>
> On Mon, Nov 30, 2009 at 4:34 AM, Lars Francke <lars.francke at gmail.com>wrote:
>
>> > The only thing I see potentially getting in your way is that the OSM
>> > database doesn't store enough significant digits of lat/lon
>> > coordinates to make indoor mapping viable, but perhaps it does. I
>> > couldn't find documentation on how many digits it stores and how that
>> > translates approximately into real-world meters/centimeters. Perhaps
>> > someone else can chime in with that information?
>>
>> The code is here:
>> http://svn.openstreetmap.org/sites/rails_port/lib/geo_record.rb
>> Seven fractional digits are saved. That should be somewhere in the 1-3
>> centimeter range depending on where you are and I believe that'll be
>> enough for indoor mapping :)
>>
>> Lars
>>
>> _______________________________________________
>> dev mailing list
>> dev at openstreetmap.org
>> http://lists.openstreetmap.org/listinfo/dev
>>
>
>
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