par(tck)
.
plot.size.scale()
Many
par
parameters for plotting, such as
"tck"
, are expressed
as fractions of the smaller of the two side sizes of the plotting region.
This function calculates this size in user x and y coordinates, and
returns a numeric vector containing the x and y scales. It
is called internally from several low-level plotting functions,
such as
ticks.render
.
plot(1:10) plot.size.scale()