Re: [Matplotlib-users] Vertical lines

[Jeff W. <js...@fa...>]

Nils Wagner wrote:

> Hi all,
>
> How can I add vertical/horizontal  lines (x=constant, y=constant 
> respectively) to an existing plot with matplotlib ?
> A small example would be appreciated.


See http://matplotlib.sourceforge.net/matplotlib.pylab.html#-axhline
and http://matplotlib.sourceforge.net/matplotlib.pylab.html#-axvline

>
> Is there a simple command to plot closed polygons, which are defined 
> by the coordinates  of the vertices ?
>
http://matplotlib.sourceforge.net/matplotlib.pylab.html#-fill

See axhspan_demo.py and fill_demo.py for example usage.

-Jeff

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