Re: [Matplotlib-users] problems with contourf plots

[Eric F. <ef...@ha...>]

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?

Perhaps, but from what you provide we have no way of knowing whether the 
bug is in contourf or in your plotting routine.  Can you make a 
simplest-possible script that reads in your data and contours it, and 
then provide that along with the data file?

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
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users