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Hi,

I would like to have a different marker facecolor in the legend that in
the plot. Is there any way to change this color? 

In more detail my problem is the following. I plotted 6 dataset.  They
are divided in 2 groups; one with blue and the other with red color.
In each group I have used 3 different markers.  I have annotated the
meaning of the color in the plot, so I don't need a legend with 6 lines.
I only need 3, but I would like that the markers in this plot will be
empty (markerfacecolor=white). Is it possible?

Best regards,

Zunbeltz

-- 
Dr Zunbeltz Izaola
G-I1 Methods and instruments of neutron scattering
Tel +49 30 8062-3179

Helmholtz-Zentrum Berlin für Materialien und Energie GmbH   
Glienicker Straße 100, 14109 Berlin   
Vorsitzende des Aufsichtsrates: Dr. Beatrix Vierkorn-Rudolph   
Stellvertretende Vorsitzende: Dr. Jutta Koch-Unterseher   
Geschäftsführer: Prof. Dr. Anke Rita Pyzalla, Prof. Dr. Dr. h.c.
Wolfgang Eberhardt, Dr. Ulrich Breuer   
Sitz der Gesellschaft: Berlin
Handelsregister: AG Charlottenburg, 89 HRB 5583

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
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