Paul Kienzle wrote:
> On Fri, Jul 20, 2007 at 08:53:30AM -0400, Rob Hetland wrote:
>> Second, much of what I do involves plotting model data (on a  
>> curvilinear grid).  I generally like to use pcolor for these plots.   
>> I *always* want shading='flat'  Some of my grids are large, and I  
>> only see lines if I don't.  Even with smaller grids, those black  
>> lines get in the way.  I don't want to suggest an RC setting for  
>> everything, but this one single setting would save me thousands of  
>> characters typed per week.  Can we add an RC shading option?
> 
> If your data is on a quadrilateral mesh, try using the pcolormesh
> function.  It is orders of magnitude faster than pcolor and we
> solved the black lines problem by using transparency on the mesh
> grid (though of course you can use 'flat' if you want).  We only
> implemented this for the Agg backend, otherwise it falls back to
> the pcolor style rendering of a collection of polygons.

Paul,

Quadmesh has a bug in it that I would love to see squashed.  Can you 
look at it, or induce someone else to do so?  I tried but couldn't 
figure it out--it is something deep in the use of Agg. It is illustrated 
by examples/quadmesh_demo.py.  With masked data (right-hand subplot), 
the masked region is not set to the background but is instead picking up 
odd things.  If you don't see it immediately, try reshaping and resizing 
the plot a few times.

Thanks.

Eric
> 
>       - Paul
> 
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2005.
> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
> _______________________________________________
> Matplotlib-devel mailing list
> Matplotlib-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/matplotlib-devel


-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2005.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
Matplotlib-devel mailing list
Matplotlib-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-devel

Reply via email to