Closed curve defined by ellipses

HI!

I need to create a closed curve which could be defined by ellipses as well as to be modified/deformed by those ellipses. (the picture attached should help to understand it) Any ideas how can I do that?

*Should I draw ellipses in Grasshopper -> region union/ intersection -> fillet?

*Or should I modify control points of the rhino curve?

I'd like to think that there's an easy way to do that, just can't figure it out.

I'd really appreciate any help!

Replies to This Discussion

Permalink Reply by Danny Boyes on June 16, 2014 at 1:44pm

What rule governs an internal and external influence ellipes and can they change from one to the other?

Permalink Reply by Sigita on June 16, 2014 at 2:18pm

Internal and external ellipses cannot change from one to another because they deform the curve in different ways - either push it inside or outside.

There is no rule for ellipses, I drew them as a way of analyzing the curve. (There might be other ways of analyzing those curves using other ellipses as well).

I just need to transport the curve into Grasshopper with a possibility to deform it by changing radius of surrounding ellipses.

I hope that makes sense ;/

Permalink Reply by Sigita on June 18, 2014 at 8:07am

Thank You! It works perfectly!

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