Grasshopper

algorithmic modeling for Rhino

Set difference Primitive Data Type

Hi, i have a basic question, i have a set a curves (building footprints) and i randomly reduced some to make 2 levels.

But when i use a set difference to select the remaining footprints for 3 levels, it gives me a run time error.

Thanks for your help!

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Permalink Reply by Michael Pryor on October 26, 2017 at 10:09pm

Set difference works on primitive data types, basically anything that can be broken down into numbers (Booleans, Integers, Colors, Strings, Doubles, Vectors, Points)

It does not work for curves.

Permalink Reply by Panacer on October 26, 2017 at 10:15pm

Oh okay thanks for the info, learnt something today. but then is there another way to select the remaining curves?

Permalink Reply by Ethan Gross on October 26, 2017 at 10:59pm

Since as Michael mentioned, Set just looks at numbers, you can find the centroid of each (closed) curve and index off of that.

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Permalink Reply by Panacer on October 27, 2017 at 3:05am

Wow thanks this works really well. 

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