Grasshopper

algorithmic modeling for Rhino

How to adjust the radius of a circle using attractor points

Hi, I want the radius of a circle which is part of a lofted surface applied across another surface using surface boxes to get smaller and larger as an attractor point moves across the surface. Think of it as the sun moving across, as the sun gets closer to the point, the radius of the circle gets smaller. Refer to the youtube video 'Parametric Play 2', but without inputing the solar data. 

I'm having alot of trouble with this and my tutors didn't know how to do it either, any suggestions would be appreciated. thanks

 

I've attached my files so you can have a look.

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Replies to This Discussion

Permalink Reply by Adam Chałupski on June 6, 2011 at 1:55am
Chris, I scaled inner circles useing attractor but im not sure if this is the right result.  In my definition the scaled circle indeed get smaller when attractor is closer but it doesnt follow exactly the surface curvature.  It might be more difficult if You want the orgin surface to be scale at first and then to apply them across the surface.
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Permalink Reply by Pieter Segeren on June 6, 2011 at 4:39am
Hi Chris, here is my approach.
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Permalink Reply by Adam Chałupski on June 6, 2011 at 5:03am
great!
Permalink Reply by Chris Stringer on June 6, 2011 at 6:06am

That is exactly what I was looking for. Thank you so much.

Permalink Reply by Pieter Segeren on June 6, 2011 at 6:37am
You're welcome Chris, glad I could help. Now you go teach your tutors ;)

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