Re: [Matplotlib-users] Polar plot - problem with negative values for radius

[Benjamin R. <ben...@ou...>]

On Thu, Feb 17, 2011 at 4:12 AM, Stephan Markus <zw...@we...> wrote:

>
> Small update:
>
> I tried the very same code with MPL 1.0.1 and Python 2.5.0 on Linux 64 and
> Python 2.5.4 on Win32 and it runs w/o throwing any exceptions there!
>
> But: the behaviour is still not that what I expected. Still these issues
> are
> remaining:
> - the smallest magnitude (center magnitude in other words) is 0.1 and I'd
> like to display way smaller values
> - the smallest magnitude doesn't even change when zooming
> - the grid lines and ticks do not show as I'd expect (see my last message)
> when zooming
>
>
> That's why I'd rather stick to a linear scale, doing my own logarithmic
> conversion, limit my data at lowest value I need and just use an offset for
> the scale.
>


I see what you mean.  This problem is almost identical to another thread
going on where we can't seem to correctly do log scale for 3d plots.  The
tick locators are in the wrong positions (the major ticks should be evenly
spaced) and the error message is similar to one I have been encountering in
mplot3d.

I will look a little further into this and see if I can kill two birds with
one stone...

Ben Root