[OSM-legal-talk] Elevation / SRTM data
Peter K
peathal at yahoo.de
Mon Jul 8 07:37:29 UTC 2013
Hi Igor,
exactly in those areas I have a problem of understanding the OSM license :)
> If you store the elevation data in the original grid-based form
No, as explained, I do intent to calculate edge weights based on OSM and
elevation data. Is this a trivial change?
And then I "store" this mixed weights in-memory but this is only a
configuration to make it storing on disc. And would it make a
difference? I read somewhere that "storing" could be also in-memory with
the rise of NoSQL databases this makes indeed sense ...
> Except, of course, if you intend to offer the routing as some kind of
high-availability web service
> which would allow somebody to reconstruct the original elevation data
using web scraping.
What did you mean here? This would make a difference for the elevation
provider license not for the OSM license (?)
> Of course, all of this also depends on you getting the
approval/agreement from the CGIAR data owner
> to use the elevation data for commercial purposes.
Of course, but I think this would be another issue. I would like to
understand the OSM implications first :) !
Regards,
Peter.
> I'm not an expert, but I think it largely depends on your definition
> of the "routing database". If you store the elevation data in the
> original grid-based form and you request elevation data on-demand for
> lat/lon coords without long-term storing of lat/lon + elevation pairs,
> then I don't really see the two data sources "infecting" one another
> in legal terms.
>
> Except, of course, if you intend to offer the routing as some kind of
> high-availability web service which would allow somebody to
> reconstruct the original elevation data using web scraping.
>
> Of course, all of this also depends on you getting the
> approval/agreement from the CGIAR data owner to use the elevation data
> for commercial purposes.
>
> Best regards,
> Igor Brejc
>
> On Thu, Jul 4, 2013 at 1:01 PM, Peter K <peathal at yahoo.de
> <mailto:peathal at yahoo.de>> wrote:
>
> It is "enhanced SRTM" from cgiar: http://srtm.csi.cgiar.org/
>
> E.g. see: http://srtm.csi.cgiar.org/SRTM_FAQ.asp -> /"Can I use
> this data for commercial use? //If interested in using this data
> for commercial purposes please email //Andy Jarvis
> <mailto:a.jarvis at cgiar.org>//./"
>
> Regards,
> Peter.
>
>>
>> If it's SRTM it's just public domain isn't it? So if the
>> resulting database is under ODBL I can't see that being a problem.
>>
>> Very much IANAL.
>>
>> Nick
>>
>> -----Peter K <peathal at yahoo.de> <mailto:peathal at yahoo.de> wrote:
>> -----
>> To: legal-talk at openstreetmap.org
>> <mailto:legal-talk at openstreetmap.org>
>> From: Peter K <peathal at yahoo.de> <mailto:peathal at yahoo.de>
>> Date: 04/07/2013 09:05AM
>> Subject: [OSM-legal-talk] Elevation / SRTM data
>>
>> Hi there,
>>
>> how would like to know how I could integrate SRTM data with OSM
>> data. It
>> is not for a mapping service where I could overlay the elevation
>> curves/data and keep it separate. It is for my routing engine
>> GraphHopper where I would need to do the following:
>>
>> * to calculate the distance I take the latitudes and longitudes from
>> OSM, to guess the speed I take the highway and other tags. Then, with
>> the help of the SRTM data I modify this distance and speed to be more
>> real world.
>> * to create an elevation profile of the resulting path. This
>> should be
>> simple (?) as the elevation data could be in a separate database and
>> just fetched on demand.
>>
>> Will the resulting routing database fall under ODbL which the
>> providers
>> probably do not want as their elevation data could be guessed or even
>> recalculated (with a bit effort)?
>>
>> Sorry, if this is a stupid question. I'm really new to OSM licensing
>> world :) and there was a similar question but this was regarding hill
>> shading and the old license:
>> http://gis.19327.n5.nabble.com/OSM-legal-talk-ASTER-or-no-ASTER-td5715399.html
>>
>> Regards,
>> Peter.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/legal-talk/attachments/20130708/f6c21b21/attachment.html>
More information about the legal-talk
mailing list