silhouette points of planar curve

 From:  bemfarmer
11213.6 
Can the Perspective Projection of your curve be done onto a Plane? (To form a line on the Plane...?)

Then the endpoints of the resulting line on a Plane drawn as lines back to the perspective point, and the intersection with your curve done???

Last years script:
https://moi3d.com/forum/index.php?webtag=MOI&msg=10807.7

- Brian

The Plane could be to the left, center between curve and point, or to the right?