The user can create a surface geometry by the following procedure.
•Point, Direction, Point, Angle, Distance
•Point: Selects a point to define the arc center.
•Direction: Defines an axis direction for generating the arc.
•Point: Selects a point to define the starting point of the arc. It is the information of the arc radius.
•Angle: Defines an angle of the arc.
•Distance: Defines a distance of the extruding length.