[wxPython-users] GCDC vs DC

[Christopher Barker]

Christian K wrote:
> What kind of optimization can be done when using GCDC instead of DC? Do you
> think wx.lib.plot could be made faster, too? 

Probably not. Chris (another one) alluded to this, but I'll try to make 
it more clear.

I'd love to be proved wrong, but in general, it appears that 
wx.GraphicsContext is slower than wx.DC. It's certainly true that GCDC 
is slower.

The optimizations that were referred to was using the raw 
GraphicsContext, rather than GCDC. I don't know that it will ever get 
faster than a native DC but GraphicsContext can give much nicer results 
(and alpha blending, which is very nice)

There would be a lot to be gained by porting pyplot to GraphicsContext, 
but speed is probably not it.

-CHB



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