[RQt-devel] par(xpd=NA) and the layout approach in qtpaint

Hadley Wickham hadley at rice.edu
Wed Sep 1 17:55:55 CEST 2010


> I would suggest turning off caching, i.e., pass cache=FALSE to qlayer, at
> least for the two axes. The issue, I think, is that Qt will only allocate a
> buffer large enough for the layer. You're then drawing outside of the cache,
> and it never makes it to the screen. I might make clip and cache both
> default to FALSE.  Caching usually only makes sense when there is a dynamic
> overlay on the layer. This is usually not the case for axes.

This seems counterintuitive - you'd normally expect that cache to be
most helpful when you're not updating the layer very often?

Hadley

-- 
Assistant Professor / Dobelman Family Junior Chair
Department of Statistics / Rice University
http://had.co.nz/


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