position
Adjusts position by nudging a given offset.
Parameters
x
Nudging width.
y
Nudging height.
unit
("identity", "size", "px"), default="identity". Units for x and y nudging. Possible values:
'identity': a unit of 1 corresponds to a difference of 1 in data space;
'size': a unit of 1 corresponds to the diameter of a point with
size=1;'px': the unit is measured in screen pixels.