class WDim
WDim(
left = 0,
bottom = 0,
width = 1,
height = 1,
nr = 1,
nc = 1,
text.x = 0,
text.y = 0,
text.just = c("center", "center"),
column.split = NULL,
row.split = NULL
)
left coordinate
bottom coordinate
width
height
number of row
number of column
x anchor for text
y anchor for text
just for text
a list of WDim objects for column split
a list of WDim objects for row split
a WDim object