Re: [R] handling objects plotted on x11 device

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From: Richard Rowe (Richard.Rowe@jcu.edu.au)
Date: Sat 28 Dec 2002 - 12:05:05 EST 

Message-id: <5.0.0.25.1.20021228110202.03969870@pop.jcu.edu.au>

At 19:06 27/12/02 +0000, Brian Ripley wrote:
>On Fri, 27 Dec 2002, Uwe Ligges wrote:
>
> > Timur Elzhov wrote:
> > >
> > > Is it possible to handle objects have already been plotted on
> > > x11 device? For example, I wrote the text on the wrong place.
> > > Can I remove it, or I have to re-draw all the canvas, again?
> >
> > The latter.
>
>You can re-plot the text in background colour (col=0) *provided that is
>not transparent* (when you can use the canvas colour) and provided it did
>not overlap other graphics.
>
>In practice, Uwe's suggestion is much the easiest one.

And almost totally painless if you use (short) scripts rather than the
keyboard to generate the R activity,

Richard Rowe

Richard Rowe
Senior Lecturer
Department of Zoology and Tropical Ecology, James Cook University
Townsville, Queensland 4811, Australia
fax (61)7 47 25 1570
phone (61)7 47 81 4851
e-mail: Richard.Rowe@jcu.edu.au
http://www.jcu.edu.au/school/tbiol/zoology/homepage.html

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