[Matplotlib-users] Matplotlib differences MacOSXAgg and others

[John C. <jo...@jc...>]

Hello again,

I've posted these two issues in separate mails, as I suspect they're 
actually different problems.

This error is particular to the default version of MacOSX's matplotlib
version 1.4.3:

When doing a simple plot:

import matplotlib.pyplot as plt

def test_plot():
    x = range(11)
    y = [x0**2 for x0 in x]

    plt.plot(x, y, 'o:', fillstyle='none', label = "1", ms = 10)
    plt.legend()
    plt.show()

def main(args):
    test_plot()
    return 0

if __name__ == '__main__':
    import sys
    sys.exit(main(sys.argv))

Much of the data is available on this thread on stackoverflow:

http://stackoverflow.com/questions/31408928/how-can-i-plot-hollowed-symbols-connected-with-dotted-lines-in-one-go/31410105?noredirect=1#comment50794519_31410105

The gist is that a dotted line ('o:') works correctly
on my system (Linux Slackware/matplotlib 1.3.1 and 1.4.3), on C.C.Yang's
Linux Mint, but not on his MacOSX (on which the _circle symbols_ are also
dotted).

It does work if he defines TkAgg or GtkAgg (even though he does not have
Gtk installed on his Mac)

Any suggestions to solve this?

Is there a problem in the MacOSXAgg backend?

John