|Visio Automation Reference|
Draw a sequence of arcs rather than a sequence of line segments.
Draw a shape that has one-dimensional (1-D) behavior.
Draw a shape that has 1-D behavior.
Break the spline whenever an abrupt change of direction or curvature in the point's trail is detected.
Recognize circular segments in the given array of points and generate circular arcs for those segments.
Draw a periodic spline.