Re: [Matplotlib-users] Color for plus symbol always black

[John H. <jdh...@ac...>]

>>>>> "Richard" == Richard Taylor <rt...@ec...> writes:

    Richard> I recently upgraded to the binary for Windows version
    Richard> 0.60.2 and found that the plus (+) symbol always plots in
    Richard> black even though a color is specified.  My fix was to
    Richard> change the parameter lines.markeredgecolor to the color I
    Richard> wanted using the rc() command and then to revert to the
    Richard> default using rcdefaults().  This works ok for me but I
    Richard> thought you might want to know in case it's a bug.

Yes, this is a bug, sort of.  '+' is a marker.  In the current
matplotlib, the colorarg only sets the marker face color but not the
edge color.  For circles and the like, this is normally not a
problem.  But for '+' it makes no sense.

In the next release, color args will affect both the edge and face
colors, and you can override this by providing a kwarg, eg

  >>> plot(range(10), 'r+')  # red plusses

  >>> plot(range(10), 'ro')  # red circles, edge and face

  >>> plot(range(10), 'ro', markeredgecolor='k')  # red face, black edge

Thanks for letting me know.

JDH