Yep, the same library (physical, on our network) fails depending only
the computer, thus on its own internal libraries called by GEOS.
By the way, I tried basemap with geos 3.0.4, and saw the "simplify()"
method working. That's funny!
On Thu, Jul 2, 2009 at 2:08 PM, Jeff Whitaker<jsw...@fastmail.fm> wrote:
> Stephane Raynaud wrote:
>>
>> Hi (Jeff),
>>
>>
>> I recently performed updates to matplotlib and basemap.
>> >From this time, I have a random and reccurent error when I create a
>> Basemap instance.
>> Here is one example :
>>
>>
>>>>>
>>>>> from mpl_toolkits.basemap import Basemap
>>>>> Basemap(**{'lon_0': -4.5250263598141309, 'urcrnrlat':
>>>>> 49.140154231678416, 'projection': 'cyl', 'llcrnrlon': -7.2999968048710144,
>>>>> 'lat_ts': 47.468781818043126, 'urcrnrlon': -1.7500559147572474,
>>>>> 'area_thresh': 0.1, 'llcrnrlat': 45.797409404407844, 'resolution': 'i',
>>>>> 'lat_0': 47.468781818043126})
>>>>>
>>
>> GEOS_ERROR: TopologyException: found non-noded intersection between
>> 8.67583 4.66292, 8.70206 4.66997 and 8.71039 4.67664, 8.67708 4.64997
>> 8.70205 4.66997
>>
>> It depends on the area and the resolution (polygons).
>>
>> I have version '0.99.3' of basemap.
>>
>> Any idea?
>>
>
> Stephane: I'd say it's an issue with your geos library installation that
> basemap is linking to. I don't see that error using your example for geos
> 2.2.3 or geos 3.0.3.
>
> I'd suggest rebuilding the geos library, then recompiling basemap.
>
> -Jeff
>
--
Stephane Raynaud
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