Re: [Matplotlib-users] ValueError in backend_gtk.py when switching from linear to log scale

[Werner H. <wer...@gm...>]

Hi Mike,

On Freitag, 22. August 2008, Michael Droettboom wrote:
> Can you provide a standalone script to illustrate this problem?

Already provided in the last mail. I've added a second one where you can 
switch between gtk and gtkagg backend.

> I suspect that the position of the text is somehow negative and is
> getting masked away by the log transformation (which is obviously
> undefined for negative numbers).

There are no negative numbers in the example.
the gtk backend still doesn't work.

> Also, have you tried the GtkAgg backend instead?  That sees a lot
> more usage, and therefore may not contain this bug.

Just tried gtkagg and it works fine. It even guesses a good minimal 
value for the log range if the plot has negative data. I will switch to 
that backend in my application.

> That said, this case should be handled correctly and probably
> requires a check. 

Regards
Werner