[Osmf-talk] OSM API download bug: south east corner of data missing

80n 80n80n at gmail.com
Thu Nov 19 13:44:27 UTC 2009


Graham
That's interesting.  I'll take a look and let you know if I can figure out
what's going on here.

80n

On Thu, Nov 19, 2009 at 1:40 PM, Graham Asher
<graham.asher at btinternet.com>wrote:

> I've found a bug in the OSM API v0.6 - is there a bug tracking system I
> can log it to?
>
> Details:
>
> <<<<<<
> The bug is this: when downloading a large amount of data by specifying a
> rectangular bounding box, quite often the south east corner is missing.
> Some evidence: note the sizes of downloaded data in the following requests:
>
> $ curl
>
> http://osmxapi.hypercube.telascience.org/api/0.6/map?bbox=-88.546,41.327,-86.97,42.382
>  >chicago.osm
>  % Total    % Received % Xferd  Average Speed   Time    Time     Time
> Current
>                                 Dload  Upload   Total   Spent    Left
> Speed
> 100  308M    0  308M    0     0   155k      0 --:--:--  0:33:48
> --:--:--  224k
>
> $ curl
>
> http://osmxapi.hypercube.telascience.org/api/0.6/map?bbox=-88.427,41.399,-87.105,42.325
>  >chicago.osm
>  % Total    % Received % Xferd  Average Speed   Time    Time     Time
> Current
>                                 Dload  Upload   Total   Spent    Left
> Speed
> 100  311M    0  311M    0     0   144k      0 --:--:--  0:36:42 --:--:--
> 86062
>
> The second request is for a smaller area - an area entirely included in
> the bounds of the first area, and smaller on every side - yet more data
> arrives (311M instead of 308M) showing that something is awry.
>  >>>>>>
>
> [I have sent a copy of this message with an illustration, but it is
> greater than the 40K limit for postings, and awaiting approval. so I am
> sending a briefer version in the hope of getting a quick response]
>
> Graham Asher
>
>
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>
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