Re: [Matplotlib-users] autoscale problem?

[John P. <jo...@ot...>]

Darren,

This works great for me - thanks!

I should have said this earlier, but matplotlib is excellent! Thank you 
to everyone who works on it.

John

Darren Dale wrote:

>On Wednesday 16 March 2005 07:59 pm, Darren Dale wrote:
>  
>
>>I suggest making the following change to ticker.py, starting
>>at line 501 in version 0.72.1:
>>
>>    def le(self, x):
>>        'return the largest multiple of base <= x'
>>        d,m = divmod(x, self._base)
>>        if closeto(m/self._base,1): # was closeto(m, self._base)
>>            #looks like floating point error
>>            return (d+1)*self._base
>>        else:
>>            return d*self._base
>>
>>    
>>
>
>I was testing this bugfix with plot([1.4e-12,3.0e-12]), and noticed that the 
>1.4e-12 ticklabel was being dropped.
>
>In ticker.py, I suggest replacing Base.ge with:
>
>    def ge(self, x):
>        'return the largest multiple of base >= x'
>        d,m = divmod(x, self._base)
>        if closeto(m,0) and not closeto(m/self._base,1): return x
>        return (d+1)*self._base
>
>The fourth line used to be if m==0: return x, which fails sometimes due to 
>floating point inaccuracy. John, remember I was complaining about how certain 
>ticklabels wouldnt get rendered in the new scalarformatter I posted a couple 
>weeks ago? This was the problem.
>
>Darren
>
>  
>