Dear all,
I need to run a interactive procedure where the user
will need click on the screen (over a XY plot)
and I need to record the XY coordinate which the
user clicked. Roughly I wrote a short code below.
You see that I suppose that the user will choose
four coordinates inside the region of intersection
between three segmentes. On each click, I would like to
record the position clicked in a vector.
Any help are welcome.
Miltinho
-----
number.clicks<-4
for (i in 1:number.clicks)
{
plot(0,0, type="n")
seg1<-arrows(-0.5,-1,0.5,0, col=1)
seg2<-arrows(0,-1,-0.3,0.3, col=2)
seg3<-arrows(0.2,-0.7,-0.5,0, col=4)
# here I would like click on PLOT
# and record de XY position
# before go to next aquisition
}
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