How to build a definition that checks a curve for a minimum radius.

Hi you all

I´m during af project where I make an almost closet curve smaller by offsetting it towards the center of the curve, and then again and again by connecting it to a HoopSnake Component.

My Actually question: I want to stop offsetting when the curve at any given point (or almost) turns into a curvature with a preset radius.

Any help or links that might find my interest will be appreciated greatly.

- Michael

Attachments:

Curvature Check Screen Shot.jpg, 218 KB

Replies to This Discussion

Permalink Reply by Michael Thomsen on March 8, 2012 at 3:41am

As seen on the screenshot, I can control the curvature, but I want to automatically set this op. Like checking for errors of the minimum curve radius.

I try to avoid Galapagos and HoopSnake.

Any suggestions? Or am I going to script this solution?

Permalink Reply by David Rutten on March 8, 2012 at 4:45am

You could evaluate the curvature radius at a lot of positions along each curve, then pick the smallest one. But you'll have to create the offset before you know whether it's an acceptable curve, so you may need to create a lot of offset curves and filter out the bad ones afterwards unless you're using Hoopsnake, Galapagos or scripting.

David Rutten

david@mcneel.com

Poprad, Slovakia

Permalink Reply by Michael Thomsen on March 8, 2012 at 2:19pm

Hi David

Thanks a lot for your answer. Just to have it cleared. Right know the way I checks the curve for low radius is by "Animate" a slider in example 1000 frames, and then afterwards checks the list for the radius or a criterion of true and false values.

Is it correctly understood, that I have to use HS, Galapagos or scripting to automatical this proces?

Thanks In Advance, Michael

For further information about the work, feel free to check this website: http://parametricurbanism.wordpress.com/michael-vestergaard-thomsen/

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