Re: [matplotlib-devel] Cairo backend prospects

[Steve C. <ste...@ya...>]

On Mon, 2007-01-08 at 11:24 -0500, Darren Dale wrote: 
> I only had a short time to work with backend_gtkcairo, but a couple of things 
> caught my attention. mathtext support seemed to need some improvement, it 
> looked like it was rendered as an image rather than as text. Also, 
> imshow(rand(100,100)) looked very different with gtkcairo and gtkagg, (maybe 
> because the rgba ordering is different in agg and cairo? I'm not sure this is 
> even the case, I'm taking a stab in the dark.)

cairo mathtext uses a method copied from gdk/gtk and does render an
image. It needs updating to render text.

imshow does look different on cairo and agg, and yes, It looks like an
image format problem. cairo uses ARGB32 with pre-multiplied alpha, and
the ARGB order depends on whether the machine is little- of big-endian.

Steve

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