bbox: Estimate bounding box of a rotated string
Description
Estimate bounding box of a rotated string
Usage
bbox(txt = "foo", angle = 0, size = 12)
Arguments
txt
a character string of length 1
angle
sets the angle of the tick labels with respect to the
horizontal (e.g., `tickangle` of -90 draws the tick labels vertically)
size
vertical size of a character
References
https://www.dropbox.com/s/nc6968prgw8ne4w/bbox.pdf?dl=0