connecting curves through a point

Replies to This Discussion

Permalink Reply by marziah zad on March 18, 2012 at 6:23am

um, just in case my explanation is very confusing.. here is the def.

Attachments:

• sunday march 18.gh, 6 KB

Permalink Reply by Hannes Löschke on March 18, 2012 at 6:29am

Do you want to move C1 to intersect C2 at p1 and p2? Or do you want to just move p1 and have the rest of C1 deform?

Is C1 and C2 curves, polylines or lines?

Permalink Reply by marziah zad on March 18, 2012 at 6:34am

I want to move p2 and C2 will deform as a consequence of connecting to P1.

and C1 and C2 are catenary curves created with the catenary component

Permalink Reply by Mateusz Zwierzycki on March 18, 2012 at 7:04am

And it still should remain catenary after point transition ? If so - use kangaroo, or manage with this one : 

http://upload.wikimedia.org/wikipedia/en/math/b/5/4/b547aabcce5f9a5...

Permalink Reply by marziah zad on March 18, 2012 at 7:37am

I don't care if it remains catenary, that's why i haven't used kangaroo. also, i've tried to use the function you sent (catenary function) earlier when working with catenaries, but i don't know how i can use it in grasshopper. anyway... i can create new curves manually which will fit (not exactly) the form I was hoping to achieve anyway. so I think i will do that... although the shape is not exact (not true form) and is made by fiddling with sliders. I was hoping there would be a component or a method.. but i guess it's something i will have to find for myself! 

thank you though, regardless!

Permalink Reply by Mateusz Zwierzycki on March 18, 2012 at 7:38am

here is one definition that creates "transition curve".

It actually doesnt connect two exact points, but there is only one point that is on C1 and c2 (here yellow). Otherwise, you got the workflow now. 

Its all about equation (cos(x) + 1 )/2 - does anybody knows more equations producing such smooth transitions ?

Attachments:

• catenary curve transition.gh, 9 KB