[Matplotlib-users] Help with updating the limits of an axis to reflect the range of new data

[rogerjames99 <ro...@be...>]

Hi,

I am trying to draw a polar plot of a sonar scan. The idea being to present
it like a radar display. I have used axisartist to do the ploar plot. This
is working fine but I would like to reset the limits of the radius axis with
each new scan. I have tried a number of ways of doing this without success.
My current code to set up the plot looks like this.



and to update the plot. Like this


I have tried doing the above on the host axes and the auxiliary one and with
different parameters to the relim etc. Nothing seems to work. Before I tried
various other calls to manipulate the extremes but with the same lack of
results. Can anyone set me straight on this? I feel I must be missing
something obvious. However I find the documentation and the class
inheritance hierarchy almost impossible to follow.

Here are a couple of links to snapshots of the output.

Before
<https://dl.dropboxusercontent.com/u/84613021/Screenshot%20from%202015-03-25%2018%3A17%3A24.png>  

After
<https://dl.dropboxusercontent.com/u/84613021/Screenshot%20from%202015-03-25%2018%3A18%3A30.png>  

Thanks,

Roger



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