Gets or sets the offset of the tick mark labels from the scale arc.
A Single value that specifies the offset of the labels from the scale arc, in relative coordinates.
The TextOffset property's values are measured from the scale arc, in relative coordinates. The value of 0 means that the labels are positioned directly on the arc scale. If a negative value is assigned, the labels are moved inwards. If a positive value is assigned, the labels are moved outwards.
See Coordinate System, to learn about relative coordinates.