Scale curve to match a certain length

Hi!

I have a irregular closed curve and a goal length. I want to scale it up or down to have its length match my goal length.

I initially though about creating a VB component which would loop and scale it up or down by small amounts until it reaches the desired length, but I am afraid this would no be that efficient...

maybe anyone has any other solution??

any algorithm or formulas?

Thanks!!

Replies to This Discussion

Permalink Reply by June-Hao Hou on November 19, 2010 at 5:41am

1. If it's linear, simply scale it by the factor of (target length / current length).
2. If it's not linear, try Galapago (Params > Special > Galapago).

Permalink Reply by Daniel da Rocha on November 19, 2010 at 6:37am

not linear...

i actually thought about galapagos...
i'll give it a try!
thanx

Permalink Reply by David Rutten on November 19, 2010 at 10:11am

That'll work on all curves, not just linear ones.

--
David Rutten
david@mcneel.com
Seattle, WA

Permalink Reply by Daniel da Rocha on November 19, 2010 at 7:17am

maybe it is simpler than I thought.
I just divided the desired length by the original length and scaled it by this factor!
using the geometrical center point of the curve as the scaling center point.

maybe it is just coincidence but worked perfectly in several trials...

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