interactive_points_grob(x = unit(0.5, "npc"), y = unit(0.5, "npc"), tooltip = NULL, onclick = NULL, data_id = NULL, pch = 1, size = unit(1, "char"), default.units = "native", name = NULL, gp = gpar(), vp = NULL)points for the
interpretation of these values, and note fill below.x or y are only given as numeric vectors.gpar, typically the output
from a call to the function gpar. This is basically
a list of graphical parameter settings; note that fill (and
not bg as in package graphics points) is
used to fill, i.e., color the background of symbols with
pch = 21:25.