[matplotlib-devel] EPS output problem - scatter & edgecolors

[Manuel M. <mm...@as...>]

Now that alpha works with screen output, I recognized a problem with the 
eps output. This is my little test script:

import pylab

x = pylab.npy.arange(0,10)
pylab.scatter(x,x, s=50, alpha=0.5)
pylab.scatter(x,x+0.5, facecolor='blue', edgecolor='red', s=50, alpha=0)

pylab.savefig('alpha.png')
pylab.savefig('alpha.eps')
pylab.show()

The resulting figures are attached. The problem occurs in the eps output 
where the edgecolors are not correctly reproduced, only the first marker 
symbol has a red edge, the others don't.

I used the latest svn for this test.

Manuel

John Hunter wrote:
> On 10/18/07, John Hunter <jd...@gm...> wrote:
> 
>> You should use the "c" argument for scatter -- this controls the facecolor.
>>
>> scatter(x,x+0.5, c='blue', s=50, alpha=0.5)
>>
>> This is a bit of an anachronism from matlab compatibility.
> 
> This is now fixed in svn, so you can use facecolor as well.  Note that
> for constant size and color markers, plot will be significantly faster
> 
>   ax.plot(x, x+0.5, mfc='blue', alpha=0.5, ms=20)
> 
> JDH