Re: [Matplotlib-users] Fwd: speed of clearing and creating a new array

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

Alan G Isaac wrote:
> On Tuesday 08 April 2008 10:46:32 am Bryan Fodness wrote:
>> I am starting with a zero array, populate it according to 
>> some condition, save the graph
> 
> I am going to need something along this line pretty soon.
> What is the difference between matshow and pcolormesh for
> this?  (Besides the aspect ratio?)

matshow is a compatibility interface to imshow, which is restricted to 
regular rectangular grids, but is the fastest way to make an image-like 
plot.  pcolormesh is not as fast, but can handle arbitrary quadrilateral 
grids. There is also code to handle irregular rectangular grids at a 
speed intermediate between imshow and pcolormesh (which is a wrapper for 
quadmesh).

A unified interface to all of these is provided by the pcolorfast axes 
method in svn.  Its API may need tweaking; suggestions are welcome.

Eric

> 
> Thank you,
> Alan Isaac
> 
> 
> 
> 
> 
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