Need help with vectors for extrusion?

Hi everyone!

Have a bit of a dumb question here. I just want to make an extrusion of circles at different lengths following the normal of the surface divide.

Right now, there's an attractor thing going on here where the closer the sphere is to the surface, the smaller the circle's radius. I'm trying to get the extrusion to be shorter for the circles closer to the spheres and longer extrusions when they are further away from the spheres.

I need to get the distance to plug into some vector component using the data from the 'n' outlet of surface divide and then back into extrude. Unless there's another way?

Here's my definition below:

And a screenshot

My rhino and grasshopper files are attached.

I will be really grateful if someone could help me :)

Cheers,

Attachments:

circles 6b.3dm, 527 KB
circles 6b.ghx, 92 KB

Replies to This Discussion

Permalink Reply by robert cervellione on August 23, 2010 at 8:29am

it is the

surface normal * distance
then plug the result into D of extrude

Permalink Reply by Ra on August 23, 2010 at 8:34am

Do you mean like this?

Extrude turned up red!

Permalink Reply by robert cervellione on August 23, 2010 at 8:38am

no,
Add a multiplication node or if you are in the old version 0.6xxx use an amplitude node

then

N of SDivision into Multiply input A then the Dist D into multiply input B
then plug the result of the multiplication into D of extrude

or old version of GH

N of SDivision into Amplitude input A then the Dist D into multiply factor
then plug the result of the amplitude into D of extrude

Permalink Reply by robert cervellione on August 23, 2010 at 8:45am

here is an image

Permalink Reply by robert cervellione on August 23, 2010 at 8:47am

better yet

Permalink Reply by Ra on August 23, 2010 at 9:09am

Thanks a lot! but..

Why doesn't my multiply work? I'm assuming that I'll have to install the new one?

Permalink Reply by Ra on August 23, 2010 at 8:47am

Thanks for your patience! But i think i screwed it up again

Permalink Reply by robert cervellione on August 23, 2010 at 9:15am

if you have the old version it would look like this

Permalink Reply by Ra on August 24, 2010 at 7:27am

Is the AXB suppose to be 'Multiply'? 'Cause I'm still getting it wrong :(

Permalink Reply by robert cervellione on August 24, 2010 at 8:05am

here is the definition you had fixed

Attachments:

circles6b_fix.ghx, 128 KB

Permalink Reply by Ra on August 24, 2010 at 8:12am

Thanks! Only problem is I can't open it. Apparently it's a newer version? I just downloaded the latest unstable built. I think it's 6.59? Where can I download a newer version?

Sorry to be such a trouble!

Permalink Reply by robert cervellione on August 24, 2010 at 8:19am

http://download.rhino3d.com/en/Grasshopper/1.0/wip/rc/download/