View source: R/add-rows-cols.R
gtable_add_rows | R Documentation |
Insert new rows in a gtable and adjust the grob placement accordingly. If rows are added in the middle of a grob spanning multiple rows, the grob will continue to span them all. If a row is added above or below a grob, the grob will not span the new row(s).
gtable_add_rows(x, heights, pos = -1)
x |
a |
heights |
a unit vector giving the heights of the new rows |
pos |
new row will be added below this position. Defaults to
adding row on bottom. |
A gtable with the new rows added.
Other gtable manipulation:
gtable_add_cols()
,
gtable_add_grob()
,
gtable_add_padding()
,
gtable_add_space
,
gtable_filter()
library(grid)
rect <- rectGrob(gp = gpar(fill = "#00000080"))
tab <- gtable(unit(rep(1, 3), "null"), unit(rep(1, 3), "null"))
tab <- gtable_add_grob(tab, rect, t = 1, l = 1, r = 3)
tab <- gtable_add_grob(tab, rect, t = 1, b = 3, l = 1)
tab <- gtable_add_grob(tab, rect, t = 1, b = 3, l = 3)
dim(tab)
plot(tab)
# Grobs will continue to span over new rows if added in the middle
tab2 <- gtable_add_rows(tab, unit(1, "null"), 1)
dim(tab2)
plot(tab2)
# But not when added to top (0) or bottom (-1, the default)
tab3 <- gtable_add_rows(tab, unit(1, "null"))
tab3 <- gtable_add_rows(tab3, unit(1, "null"), 0)
dim(tab3)
plot(tab3)
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