R help - Apr 2006 - trellis.par.get without opening a device?

I am using the Deepayan's Sweave trick to set graphics parameters for all
graphs:

ltheme = canonical.theme(color=TRUE)
sup = trellis.par.get("superpose.line")
ltheme$superpose.line$col =
c('black',"red","blue","#e31111","green",
"gray")
....

Works perfectly, there is only a minor nuissance that trellis.par.get opens
a device every time, producing a dummy Rplots.ps file or a window (when run
after Stangle).

Is there a way to suppress this? Well, not really serious.

Dieter

On 4/24/06, Dieter Menne <dieter.menne at menne-biomed.de>
wrote:
> I am using the Deepayan's Sweave trick to set graphics parameters for
all
> graphs:
>
> ltheme = canonical.theme(color=TRUE)
> sup = trellis.par.get("superpose.line")
> ltheme$superpose.line$col =
c('black',"red","blue","#e31111","green",
> "gray")
> ....
Why do you need to call trellis.par.get? I don't see you using 'sup'
(maybe in the ... part), and I don't see why you would need to.
> Works perfectly, there is only a minor nuissance that trellis.par.get opens
> a device every time, producing a dummy Rplots.ps file or a window (when run
> after Stangle).
An Rplots.ps may still be produced by Sweave (I forget the reason, but
something to do with the need for an explicit print), but shouldn't
happen when running the R code separately.

Deepayan