widthDetails(x)
heightDetails(x)
ascentDetails(x)
descentDetails(x)
"grobwidth"
and "grobheight"
units.
Methods should be written for classes derived from grob or gTree
where the size of the grob can be determined (see, for example
grid:::widthDetails.frame
).The ascent of a grob is the height of the grob by default and the descent of a grob is zero by default, except for text grobs where the label is a single character value or expression.
absolute.size
.