Hi,
thanks a lot Eric! I'm sorry I bothered you with this.
There's obviously an error in how my data generating script works.
cheers,
Paul.
On 27. juli. 2009, at 21.48, Eric Firing wrote:
> Paul Anton Letnes wrote:
>> Hi,
>> I'm having strange problems with contourf plots. The plotting
>> routine is rather elaborate, so I don't have an easy way to
>> reproduce the problem (unfortunately). The problem should be
>> evident from the attachments. As you can see, the contourf routine
>> doesn't color the whole plot area. Also, after some editing in
>> Adobe Illustrator, it is also easy to see that some contours are
>> drawn on top of others. This must surely be a bug?
>
> It is in your data file and/or your handling of it, not in contourf.
> The problem is that your theta variable is not monotonic--it starts
> and ends with zero. If you chop off the last line of your data
> file, or equivalently chop off the last column of each array after
> you read it, like this:
>
>
> return thetas[:,:-1], freqs[:,:-1], Es[:,:-1]
>
> then the contouring works fine.
>
> Eric
>
>> I would like to note that this happened on the TkAgg (using
>> show()), Agg (png format), ps (eps format), macosx (using show())
>> and pdf backends. Also, for some data sets, the plot turns out just
>> fine - I get this problem only for some data sets. I have no idea
>> how to debug this, so I'd appreciate any hints you might provide.
>> The file original.pdf shows the matplotlib result. The file
>> edited.pdf shows that you have contours on top of each other. The
>> file gnuplot.png gives an idea of what the end result should be: a
>> lot of bumps around 3.5 eV, but some of this structure is missing
>> from the contourf plots. The gnuplot plot was generated from the
>> same data (ASCII text) file.
>> Best regards,
>> Paul.
>> ------------------------------------------------------------------------
>> ------------------------------------------------------------------------
>> ------------------------------------------------------------------------------
>> ------------------------------------------------------------------------
>> _______________________________________________
>> Matplotlib-users mailing list
>> Matplotlib-users@...
>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
|