I was checking the continuity of curves involving circles and lines and found to my shock that places that I expected would get G1 were Go.

In the attached example, I:

- drew a perpendicular cross.
- drew a circle at the line intersections.
- drew a line (green) where the circle intersects the purple line.
- split the circle on the purple line.

Yet the green line and semicircle are G0 when I would expect them to be G1.

How can I ensure such curves are continuous?

Problem Circle.3dm (2.8 MB)