This function converts a coordinate pair specifying a location in a
grid 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")
A tuple of coordinates in device units.
x coordinate.
y coordinate. If no values are given for x
and y
, the
location of the lower-left corner of the current viewport will be
calculated.
Character string indicating the units of x
and y
.
See the unit()
function for acceptable unit types.
Charlie Sharpsteen source@sharpsteen.net
unit()
viewport()
convertX()
convertY()
current.transform()