Drain, Theodore R (343P) wrote:
> FYI: Thanks for the help John.
>  
> This is case where having path.simplify = True causes the plot to be 
> incorrect.  Attached are two different images (not quite the same data 
> as the original post- but the same affect).  One with path.simplify as 
> true and one as false.  Notice the bottom right plot - the simplify case 
> causes a massive change in the way the plot looks. 
>  
> It looks like we'll be reconfiguring things for our users to make sure 
> this is set to false for now.  I haven't experimented w/ the threshold 
> argument to see where this kicks in.  It's definitely a function of plot 
> size (which is probably expected after reading the simplify documentation).
>  
> Does anyone know if there is a good write up anywhere on the cases where 
> having path.simplify=True is important?  I'll search back through the 
> old list posts and see what I can find...

It is a matter of speed, and I think of some hard limits in agg on the 
number of points it can handle.

So far, every time someone has pointed out a problem--a case in which 
the simplification code makes a perceptible difference in the appearance 
of the plot--Mike D. has found a way to fix it.

I haven't followed this thread closely, but have you verified the 
problem with recent mpl, and have you provided a minimal script to 
trigger it?

Eric

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