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toWorld Speed value?
I’m trying to return the speed of an layer that is parented to another layer. That is, the speed of the child layer relative to the world. I can’t figure the syntax out. I would have assumed something like this:
thisLayer.toWorld(thisLayer.position.speed)
I keep getting an error that says “First argument to toWorld must be a vector of length 2 or 3.”
um… so yeah. Any thoughts?
Also, I guess I should say what I’m trying to do, incase there’s just a better way to do it. I’ve got a branch, it’s sort of blowing up and down in the wind (rotationally), and I have a couple leaves attached to it. And I want the leaves closer to the end of the branch to rotate farther than the ones closer to the base of it whenever the branch moves. So I figured the relative toWorld speed would be the best value to use to augment the rotation.
Any thoughts?
replied 15 years, 10 months ago 2 Members · 3 Replies
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3 Replies
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.speed only works with properties (like position), not with arrays like those created by the layer space transforms. This should get you close:
p1 = toWorld(anchorPoint);
p0 = toWorld(anchorPoint,time-.01);
spd = length(p1,p0)*100Dan
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thank you so much. The last part of that… the *100 part… where does that number come from? Is it because we’re looking at the difference of position over on hundredth of a second? Actually, just needed to say that out loud to myself. Thank you!
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Sometimes it helps to talk it out. 🙂
Dan
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