I figured out how to do a parametric elliptical arc

In hindsight,its embarrassingly obvious....but that is for another day

Basically

- Set some custom properties

Major radius

Minor radius

Arc length in degrees

- Move to (for now) is the point at the end of major radius

In the future, I may define an arbitrary start point now that I got the hang of this

- In the elliptical arc row, the following

X = width*0.5+prop.majorradius*cos (arc length)

Y = height*0.5+ prop.minorradius*sin(arc length)

A = width*0.5+prop.majorradius*cos(arc length/2)

B = height* 0.5+prop.minorradisus*sin(arc length/2)

C = angle ///so I can rotate this based on the angle cell up by the width cell

D = prop.majorradius / prop.minorradius.

embarrassingly obvious!!!

Since Arc length = 360 deg makes a straight line, I did add a condition row that would allow one to close the arc or not

Later, I will make it so it can scale with a group.

Hope it helps all