viewport
in grid units to a coordinate pair specifying a
location in device units relative to the lower left corner of the plotting
canvas.
gridToDevice(x = 0, y = 0, units = "native")
x
and y
, the
location of the lower-left corner of the current viewport will be
calculated.x
and y
.
See the unit
function for acceptable unit types.unit
viewport
convertX
convertY
current.transform