Thanks, Eric!

I had tried

pt = plot(...)

for p in pt:
  p.remove()

and that did not do the trick.  However, doing it the way you
suggested worked like a charm.  Thanks!


Patrick
---
Patrick Marsh
Ph.D. Student / Liaison to the HWT
School of Meteorology / University of Oklahoma
Cooperative Institute for Mesoscale Meteorological Studies
National Severe Storms Laboratory
http://www.patricktmarsh.com




On Fri, May 27, 2011 at 2:57 PM, Eric Firing <efir...@hawaii.edu> wrote:
> On 05/27/2011 07:53 AM, Patrick Marsh wrote:
>> Greetings,
>>
>> I'm needing to create two plots, one is to serve as an overlay on the
>> other.  The overlay contains a set of markers to identify points in
>> the underlaid probability field.  I'm doing this in a loop with a map
>> background, so to prevent redrawing the map every time, I want to
>> remove the markers after saving the plot (so I can then reuse the
>> background again).  I know how to remove contours, but cannot figure
>> out how to remove points.  Here is a link to a sample script that
>> illustrates the problem.
>>
>> https://gist.github.com/072c8612f313e8ea2355
>>
>> Ideally, I would expect each plot to have only a single point, but the
>> old points aren't being removed and are displayed on subsequent
>> images.  What am I doing wrong?
>
> Illustration with ipython -pylab:
>
> In [1]: xx = plot(1.3, 2.4, 'ro')
>
> In [2]: xx[0].remove()
>
> In [3]: draw()
>
> Note that plot() returns a list of Line2D objects, each of which has a
> remove() method.
>
> Eric
>
>
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