R-beta: Switching between plots without erasing them.
lammers at edac.sr.unh.edu
Mon Jun 30 14:10:48 CEST 1997
I originally sent this to the list a week ago. Should I assume the lack
of response was due to an inappropriate question, or that this cannot be
---------- Forwarded message ----------
Date: Sat, 21 Jun 1997 11:09:21 -0400 (EDT)
From: Richard Lammers <lammers at edac.sr.unh.edu>
To: r-help at stat.math.ethz.ch
Subject: R-beta: Switching between plots without erasing them.
I have a question relating to switching between plots within the graphics
window [x11()]. If this is not appropriate for this mailing list then
please let me know.
What I am doing now:
Opening a graphics window and setting two plot regions [ie with
par(mfrow=c(2,1))]. In the top section there is a plot with a set of
points which represent river gauges located by latitude and longitude
pairs. These points are global in extent so I am also using continent
boundaries from a data set found on Statlib. Because there are so many
points this takes some time to draw. Using the identify() function a
point is selected and in the lower plot a time series is displayed from
that particular river gauge. This is in a loop which allows repeated
clicks on the map and time series plots. Each time through the loop, the
map must be redrawn.
I would like to do the following:
I would like to keep the upper plot (the map) intact while being able to
completely redraw the lower plot (the time series). Is there some way I
can return to the upper plot and invoke the identify function without
erasing the map? The function frame() erases the plot. I suppose the
alternative would be to have two independent graphics windows, but I am
not sure if that is possible within R.
Any help would be appreciated
Richard Lammers Phone: (603) 862-4699
Complex System Research Center Fax: (603) 862-0188
University of New Hampshire email: Richard.Lammers at unh.edu
Durham, NH 03824 (USA) URL: TBA
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