Re: [R] placing rectangle behind plot

From: Gabor Grothendieck <ggrothendieck_at_gmail.com>
Date: Sun 30 Jul 2006 - 13:19:32 EST

The reason I explicitly specified in the problem that the rectangle should not be drawn first is that the xyplot is issued as part of a larger routine that I don't want to modify.

On 7/29/06, Sebastian P. Luque <spluque@gmail.com> wrote:
> Hi Gabor,
>
>
> On Sat, 29 Jul 2006 17:20:29 -0400,
> "Gabor Grothendieck" <ggrothendieck@gmail.com> wrote:
>
> > I am trying to create a lattice plot and would like to later, i.e. after
> > the plot is drawn, add a grey rectangle behind a portion of it. The
> > following works except that the rectrangle is on top of and obscures a
> > portion of the chart. I also tried adding col = "transparent" to the
> > gpar list but that did not help -- I am on windows and perhaps the
> > windows device does not support transparency? At any rate, how can I

> > place the rectangle behind the plotted points without drawing the
> > rectangle first?
>
> If you only need to draw the rectangle behind the points, why not
> 'panel.polygon' before 'panel.xyplot'?
>
>
> xyplot(x ~ x | gl(2, 1), layout=1:2,
> panel=function(x, y, ...) {
> panel.polygon(c(3, 3, 8, 8), c(0, 12, 12, 0), col=2)
> panel.xyplot(x, y, ...)
> })
>
>
> Cheers,
>
> --
> Seb
>
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>



R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Sun Jul 30 13:24:27 2006

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