HI Forum. I'm watching the following Rhino 2D to 3D tutorial series which I find very good. Lots of interesting techniques for the relative beginner in this endeavour. I'm unable to find a way to continue a curve in the same was as Rhino bi-arc command ? Link below starts at the bi-arc command example. Thank you.

https://youtu.be/HHR2Uhcef4Q?t=145

Hi Sven, I think he's using the Rhino Extend command with the "By arc" option.

You can use the Extend command in MoI to do that, but it doesn't have a dynamic tracking type extension yet. That's something that I want to add but for now you would need to draw in some boundary lines like this:



- Michael

Hi Michael. I wasn't having very good result extending curves with varying radii like these in teapot. Perhaps this is what you are referring to by dynamic tracking. I experimented with arcs including elliptical where the extensions were really good. Thanks for the visual example and answering.