Re: [Matplotlib-users] Qt4 Performance Issues

[Darren D. <dd...@co...>]

Hi David,

On Wednesday 20 December 2006 12:17, David Levitan wrote:
> I'm trying to use the qt4agg backend and running into performance issues
> (both using matplotlib interactively and in a program). The performance
> of qtagg and gtkagg backends are fine and drawing a zoom rectangle, for
> example, is smooth. With qt4, however, dragging and zooming are very
> choppy. Is this is known bug and is there any way to work around this?

It may be an issue with your installation of qt4/PyQt4. Panning and zooming 
are both quite fast for me. I'm using qt-4.2.2 and PyQt-4.1 on a 64bit gentoo 
linux machine.

Darren