Pascal Brisset wrote:
> Hi,
>
> it seems that the Google naming policy for tiles has changed. I did not
> find any documentation about it.
> Looking at the requests from the standard Google Maps application, it is
> possible to forge the new names.
> Previously, the tiles were named according to quadtree coding using q
> (north-west), r (north-east), s (south-east) and t (south-west) to name
> a recursive split of the earth.
> Now the tiles are simply accessible giving a zoom level (z) and two
> coordinates, x (east) and y (south) from 0
> to 2^z-1 .
>
> I've just commited a patch (sw/lib/ocaml/
gm.ml).
> Since our caches (var/maps/) are full of maps named with the previous
> policy, I kept this naming. So, just a small translator for the URL has
> been added:
>
> let google_maps_url = fun s ->
> sprintf "
http://khm.google.com/kh?n=404&v=3&t=%s" s
>
> has been modified into
>
> let google_maps_url = fun s ->
> let (x, y, z) = xyz_of_qsrt s in
> sprintf "
http://khm0.google.com/kh/v=45&x=%d&s=&y=%d&z=%d" x y z
>
> where xyz_of_qsrt translates "trtqtqsqqqqsrqrqrt" into (67690, 43073, 17)
>
> so "svn update sw/lib/ocaml/
gm.ml; make" should solve your problems
>
> --Pascal
>
> PS: Yes, we will use openstreetmap. Soon :-)
>
>
>
> Matthew Currie wrote:
>> Yes, 404 is not a good sign. The google server is actively and politely
>> responding and saying the tile you requested is not available. We can
>> hope this is a temporary server change.
>>
>> I was going to do my first flight this weekend and I don't have the
>> tiles for my new flying site yet =/
>>
>> Matthew Currie
>>
>> Austin Jensen wrote:
>>
>>> Anyone else having troubles downloading new tiles from Google. I get
>>> this error
>>>
>>> --2009-09-25 11:40:53--
http://khm.google.com/kh?n=404&v=3&t=tqtrstttqss
>>> <
http://khm.google.com/kh?n=404&v=3&t=tqtrstttqss>
>>> Resolving khm.google.com... 74.125.155.190, 74.125.155.136,
>>> 74.125.155.93, ...
>>> Connecting to
khm.google.com
>>> <
http://khm.google.com>|74.125.155.190|:80... connected.
>>> HTTP request sent, awaiting response... 404 Not Found
>>> 2009-09-25 11:40:53 ERROR 404: Not Found.
>>>
>>> This is different than the error you get when the server bans you right?
>>> I've tried different computers from different locations and had the same
>>> problem.
>>>
>>> Thanks,
>>> Austin
>>>
>>> ------------------------------------------------------------------
>>> Austin Jensen, Research Engineer
>>> Utah Water Research Laboratory (UWRL)
>>> Utah State University, 8200 Old Main Hill
>>> Logan, UT, 84322-8200, USA
>>> E:
address@hidden
>>> <mailto:
address@hidden>
>>> T: (435)797-3315
>>>
>>>
>>> ------------------------------------------------------------------------
>>>
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