matplotlib-users

[Matplotlib-users] GEOS Error

[John [H2O] <was...@gm...>]

Does anyone know what this error may result from:
GEOS_ERROR: TopologyException: no outgoing dirEdge found (74.5584,-90,-90)
Segmentation fault


I am getting it for various projections and datasets...

working with mpl_toolkits.basemap

Thanks!
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Re: [Matplotlib-users] GEOS Error

[Jeff W. <js...@fa...>]

John [H2O] wrote:
> Does anyone know what this error may result from:
> GEOS_ERROR: TopologyException: no outgoing dirEdge found (74.5584,-90,-90)
> Segmentation fault
>
>
> I am getting it for various projections and datasets...
>
> working with mpl_toolkits.basemap
>
> Thanks!
>   
What versions of python, numpy, matplotlib, basemap and the GEOS library 
do you have?

-Jeff

-- 
Jeffrey S. Whitaker         Phone  : (303)497-6313
Meteorologist               FAX    : (303)497-6449
NOAA/OAR/PSD  R/PSD1        Email  : Jef...@no...
325 Broadway                Office : Skaggs Research Cntr 1D-113
Boulder, CO, USA 80303-3328 Web    : http://tinyurl.com/5telg

Re: [Matplotlib-users] GEOS Error

[John [H2O] <was...@gm...>]

>>   
> What versions of python, numpy, matplotlib, basemap and the GEOS library 
> do you have?
> 
> -Jeff
> 
> 

numpy           - 1.2.0
matplotlib      - 0.98.5.2 
basemap      - 0.99.3

As for GEOS version, not sure but I have these files in /usr/lib
libgeos_c.so.1         libgeos.so.2           libgeotiff.so.1       
libgeotiff.so.1.2.5   
libgeos_c.so.1.1.1     libgeos.so.2.2.3       libgeotiff.so.1.2     

Thanks,
john



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Re: [Matplotlib-users] GEOS Error

[John P. <joh...@em...>]

I have also seen this error and I believe it is to do with identical
geometries being unioned. I cleaned my dataset using someting like 

select t1.id from points t1, points t2 where t1.id<>t2.id and
st_equals(t1.geom,t2.geom)='t' group by t1.id

to find all the duplicates which i then deleted. The st_union function then
worked as expected.



Jeff Whitaker wrote:
> 
> John [H2O] wrote:
>> Does anyone know what this error may result from:
>> GEOS_ERROR: TopologyException: no outgoing dirEdge found
>> (74.5584,-90,-90)
>> Segmentation fault
>>
>>
>> I am getting it for various projections and datasets...
>>
>> working with mpl_toolkits.basemap
>>
>> Thanks!
>>   
> What versions of python, numpy, matplotlib, basemap and the GEOS library 
> do you have?
> 
> -Jeff
> 
> -- 
> Jeffrey S. Whitaker         Phone  : (303)497-6313
> Meteorologist               FAX    : (303)497-6449
> NOAA/OAR/PSD  R/PSD1        Email  : Jef...@no...
> 325 Broadway                Office : Skaggs Research Cntr 1D-113
> Boulder, CO, USA 80303-3328 Web    : http://tinyurl.com/5telg
> 
> 
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