[OSM-dev] Problem with Postgresql / Mapnik / SRTM Contours

Andy Allan gravitystorm at gmail.com
Mon Nov 24 17:08:12 GMT 2008


On Mon, Nov 24, 2008 at 4:27 PM, sylvain letuffe <liste at letuffe.org> wrote:
>
>> Sylvain wins the prize for noticing!
> Is this sarcastic ?
> if yes, please excuse me, I'm using your tile serveur for a personal project
> where quite a few users makes use of this layer, and only very recently did I
> noticed things have changed, so if it has allready been in place for long, it
> shouldn't be "that long"...

No, I'm sorry, I should have explained. We swapped to a void-filled
dataset last week, but I didn't announce anything on the mailing lists
because I wanted to see how long it took anyone to notice. You can
claim 1 x Beverage of your choice the next time we meet as a reward
for being eagle-eyed!

If anyone else wants a similar prize, there's another one for finding
the most ridiculously and obviously incorrect void filling. I've found
some pretty bad ones already, but I know what I'm looking for! Trust
me, there's much worse examples than the one Sylvain found.

> For the rest I thank you very much for all your informations I'll have a look
> at all that.
>
> PS: just a thought, does any one knows where googlearth have is 3D model
> from ?

No, I don't use it. A few of us have spent time examining google
terrain layer, and I'm pretty sure it comes from SRTM, with a few
exceptions - switzerland being one of them where they clearly have a
different dataset. I've no idea about GE though.

Cheers,
Andy




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