Eric Firing wrote:
> Michael Droettboom wrote:
>> As a quick-fix workaround, you can do:
>>
>> from matplotlib.pyplot import *
>> p = scatter([0,1,2,3], [4,5,6,7], c ='k', alpha=0, edgecolor = 'k')
>> p._alpha = 1.0
>> p.set_edgecolor('k')
>> show()
>>
>> But the deeper question is for the rest of the list is... what's the
>> correct behavior? Should we just revert to what it did in 0.91, or add
>> another kwarg to set the edge alpha?
>
> I think 0.91 behavior was odd, if alpha applied only to the fill; making
> alpha apply to everything strikes me as a bugfix, not a regression, so I
> would not favor reverting to the old behavior.
>
> What is really needed may be some rethinking (or perhaps just
> codification) of overall alpha handling throughout mpl, including kwargs
> and explicit color specification. At present it seems rather messy, for
> understandable historical reasons, partly owing to backend quirks and
> limitations (e.g., no alpha at all in postscript).
>
> If the kwarg strategy is chosen, then everywhere there can be an edge
> and a face, we should support "alpha=" to apply to both, "edgealpha="
> for the edge alone", and "facealpha=" for the face. Or something like that.
+1
> Eric
>
>> Cheers,
>> Mike
>>
>> S Murthy Kambhampaty wrote:
>>> There seems to have been a change to the behavior of the 'alpha' keyword
>>> option to scatter(): where previously alpha only affected the facecolor,
>>> and the edgecolor always had an alpha of 1.0, alpha now seems to affect
>>> both facecolor and edgecolor. Tested with 0.93.1 and 0.98. Tested with
>>> new API for 0.98 as well.
>>>
>>> ax.scatter(xSeries, ySeries, s=sY, c='k', alpha=0, edgecolor='k')
>>>
>>> and
>>>
>>> plot1=ax.scatter(xSeries, ySeries, s=sY, c='k')
>>> plot1.set_alpha(0)
>>> plot1.set_edgecolor('k')
>>>
>>> Is there any way to get the old behavior using version 0.98 and forward?
>>>
>>> Thanks,
>>> Murthy
>>>
>>>
>>>
>>>
>>>
>>> -------------------------------------------------------------------------
>>> Check out the new SourceForge.net Marketplace.
>>> It's the best place to buy or sell services for
>>> just about anything Open Source.
>>> http://sourceforge.net/services/buy/index.php
>>> _______________________________________________
>>> Matplotlib-users mailing list
>>> Matplotlib-users@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>>
>
>
> -------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
> It's the best place to buy or sell services for
> just about anything Open Source.
> http://sourceforge.net/services/buy/index.php
> _______________________________________________
> Matplotlib-users mailing list
> Matplotlib-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
-------------------------------------------------------------------------
Check out the new SourceForge.net Marketplace.
It's the best place to buy or sell services for
just about anything Open Source.
http://sourceforge.net/services/buy/index.php
_______________________________________________
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
