Unfolding style animation

[rich_lord]

Hello!

I'm trying to do an unfolding style animation on a curve. At the heart of this is the ability to rotate each point of the curve around its previous point iteratively. Each point should rotate all the points with a higher point number a certain amount.

This should keep all the segment lengths of the curve the same size, as i'm just rotating them around the previous point, but I cant set this up.

I've tried various methods, but this foreach version is the closest iv'e got. No idea why its not working, unless its a property of the foreach I don't understand.

The way its set up right now, a foreach iterates over the same geometry a number of times. Each iteration, I put all the points that are a higher point number than the iteration number into a group. Then I rotate that group around the point whose number is the same as the iteration number.

Any insight on this? In my example, changing the angle parameter on the Null sets how big the angle change is.

unfoldCurveAnim.hipnc

[sadhu]

point("../each1",stamp(".",FORIDXVALUE,0),"P",0) , this expression aswell as expression in z written in xform node in foreach is the problem. It should be like this

point("../each1",stamp("..",FORIDXVALUE,0),"P",0), you are not specifying the right address where FORVALUE resides. But you r doing it right in group node.

Edited May 26, 2013 by sadhu

[rich_lord]

oh god, that was totally a typo. I feel pretty dim, I was looking at that for over 2 hours trying to figure out why it didn't work.

Thanks so much for spotting that!