Convert grid coordinates to device coordinates

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")

Arguments

x

x coordinate.

y

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.

units

Character string indicating the units of x and y. See the unit() function for acceptable unit types.

Value

A tuple of coordinates in device units.

See also

unit() viewport() convertX() convertY() current.transform()

Author

Charlie Sharpsteen source@sharpsteen.net