matplotlib-users Mailing List for matplotlib

Hi,
First off, thanks for building and supporting this excellent project.
I'm having trouble using the mulitprocessing example code at
http://matplotlib.org/examples/misc/multiprocess.html with WXAgg. Things
appear to work fine in the original script but when I change GTKAgg to
WXAgg in this script I do not get any points plotted, just a blank
interactive window.
Is it possible to use WXAgg and multiprocessing together? I have a large wx
project I would like to incorporate multiprocessing matplotlib plots into.
Thanks,
Greg

Hi,
I have an 'axes' and some Line2D instance 'line' which is part of the 
axes artists.
Suppose the plot has been zoomed so only a small window of the original 
axes is visible. Is there a fast/convenient method that can be used to 
test if a Line2D object is visible at the current zoom level.
Of course you can test with
data = line.get_xydata()
(x_0, x_1) = axes.get_xlim()
(y_0, y_1) = axes.get_ylim()
invisible_x = (data[:,0].max() < x_0) or (data[:,0].min() > x_1)
invisible_y = (data[:,1].max() < y_0) or (data[:,1].min() > y_1)
but there might be something more convenient method/approach for this.
Best regards,
Mads
-- 
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| Mads Ipsen |
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Hi all,
 I was wondering why there are inconsistent values for the 'linestyle' 
option in matplotlib.backend_bases.GraphicsContextBase. The values 
allowed are 'solid', 'dashed', 'dotted' and 'dashdot', aside from tuples.
Compare this with the options available for the usual pyplot.plot() 
command, where the linestyles are '-', '--', '-.', ':', etc.
Is there a specific reason for the difference in the options? It doesn't 
seem too hard to add the options '-', '--', etc to the 
GraphicsContextBase class - one only needs to add these to a dict at
https://github.com/matplotlib/matplotlib/blob/master/lib/matplotlib/backend_bases.py#L671
 Regards,
 basu.