Choosing specific points

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Permalink Reply by David Rutten on January 1, 2014 at 6:11am

Hi Richard,

what's the logic behind your picks?

David Rutten

david@mcneel.com

Permalink Reply by Richard Teh on January 1, 2014 at 6:16am

I want it to be somewhat more random than it is now. The concept is a cave and I prefer it to be more organic especially in the columnar arrangnment

Permalink Reply by David Rutten on January 1, 2014 at 6:25am

Unfortunately that description is not an algorithm. There's no component for 'do what I want' in Grasshopper, you're going to have to pin it down in unambiguous language before I can -maybe- help you out.

Assuming you have all the columns in the grid, what is your decision making process for which ones you want to keep and which ones you want to remove?

David Rutten

david@mcneel.com

Permalink Reply by Richard Teh on January 1, 2014 at 6:37am

Alright. Thanks for the heads-up David.

What if I say I'd like the columns to be grouped in clusters seeing that the columns are thin and columnar clusters support better? And the clusters be located round the periphery of the curvaceous membranes?

Permalink Reply by David Rutten on January 1, 2014 at 6:40am

Ok, how about this algorithm:

Generate N points around the periphery (perhaps by dividing the boundary curve)
Remove all columns that are further away than x units from the nearest point.

It would give you aliased circular clusters of columns that may or may not overlap. It's always possible to extend the algorithm later, to for example make the clusters blobby instead of circular, or to make the cut-off threshold more noisy so you don't get a clean cut between 'keep' and 'remove'.

David Rutten

david@mcneel.com

Permalink Reply by David Rutten on January 1, 2014 at 6:48am

Which, when translated from English into Grasshopper, might look like this: