Hi Michael

While trying to duplicate a Bezier curve, for use in a Braid, a strange result happened.
Zooming in at or near the origin causes the two Blue Blend curves to straighten on the screen view.

A PNG of the Bezier "figure8" is the image to reproduce in Moi.
The two outer arcs were duplicated with an arc, and two control points moved slightly.
(One of the moved locations on the upper left is in purple.
The ends of the modified arcs were G1 blended, to match the center Red X-shaped curves.
Zooming in causes the "error."
Question 1: Why?

Question 2: Do you have any tips, or references, to how to convert the Bezier curve into Nurbs?
I'm guessing that there is no way for a Moi user to plot a Nurbs equation without delving into the .3dm file format and C++ code.
(I recall seeing some very basic .3dm file C++ code on the Rhino site a while back.)

3dm file attached. There is an image file inside the .3dm.

Edit: Rebuild corrects the "Display Anomaly."

- Brian