Adds a Radius dimension object.
Syntax
objectVariable = object.AddDimRadial(Center, ChordPoint, LeaderLength)
Where:
object is one of the ModelSpace or PaperSpace collection objects or a Block object;
Center is a Point object identifying the center point on the arc;
ChordPoint is a Point object identifying the point on the circle or arc to attach the leader line;
LeaderLength is a double-precision variable specifying the length from the ChordPoint to the annotation text or dogleg.