<iuhz7j202 <at> sneakemail.com> writes:
> Are there any devices/packages available for R on Mac OS
>that let you move a single element in a plot without
> redrawing the whole plot?
....
>
> The grid package lets you shift individual elements, but
>I've tried it in X11(), quartz() and Cairo()
> devices and in every case it still redraws whole plot.
>quartz() seems to be the fastest, but also the most flickery.
>
> As a quick example of what I'm talking about, here is some code:
>
> library(ggplot2)
> qplot(1:5,1:5)
> for(i in 1:30){
> grid.gedit(gPath("geom_point"),x=unit((1:5/5)/i,"npc"))
> }
>
> This should shift the five points in the plot smoothly
> to the left, but the redrawing of the whole background
Now about something like
library(ggplot2)
qplot(1:5,1:5)
for(i in 1:30){
grid.gedit(gPath("geom_point"),x=unit((1:5/5)/i,"npc"))
Sys.sleep(0.1)
}
>
> Many thanks,
>
> Peter
>
--
Ken Knoblauch
Inserm U846
Stem-cell and Brain Research Institute
Department of Integrative Neurosciences
18 avenue du Doyen Lépine
69500 Bron
France
tel: +33 (0)4 72 91 34 77
fax: +33 (0)4 72 91 34 61
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http://www.sbri.fr/members/kenneth-knoblauch.html
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