PDA

View Full Version : rotating about an edge


WulfHF
02-10-2003, 01:09 PM
Hey guys, I wonder if anyone can help me out.

Here's what I have: I have a med-poly cargo plane with control surfaces (ie: flaps, rudder alerions etc.) for a home project.

What I want to do: Allow the control surfaces to rotate so that they rotate about the edge of the surface. So that a perfect rotation occurs. Scripts sliders control the rotation for animations.

What I've done: Right now I positioned the pivot point of the moving part along the rotating edge as best I can manually. But since it is done manually, it will never be exact. Rotation might be off by a couple of degrees. Since the edge is bent in the x and z axis, it is harder to position exactly.


QUESTION?
Is the a way 3dsMax can rotation an object about one of it edges, meaning that one of the rotation axis are EXACTLY aligned along that edge I would like to rotate it.

I ask this because at work I use Multigen Creator to create low polygon airplanes. Rotation of objects can easily done by making objects rotate along an edge, no matter what the orientation of the object. This is done by taking a center point at vetex 1 and axis of choice at vertex 2. This ensures that the object is going to rotate about that edge. All done in 3 clicks. Knowing max is a more powerful Engine than Creator, I'm sure that this feature exists in 3dsMax.


I hope I am clear enough. (note this is for any version of MAX)

Thanks guys.
Here's the plane in question:

http://milanboucherie.com/da/images/globemaster9.jpg

WulfHF
02-11-2003, 12:02 PM
OK, well then does anyone know if this is even possible? And/or does everyone just ajust their pivots manually to align them along an edge?

gaggle
02-11-2003, 12:31 PM
I was puzzled by this back when you started the thread -- I don't know how to help, and.. I guess noone else did as well.

Check into the 3D Snap feature? Constraining it to Edges, or the likes, might do something useful. Ah, not sure, I'm not certain of the effect you desire, from the descriptions you've made.

Oh, and I've had to exactly rotate around an edge once in the last many many moons, back then I utilized a little trick in MAX that you may not be aware of. Check out.. er.. ah.. oh here it is, check out this (http://www.cgtalk.com/showthread.php?s=&threadid=25173&highlight=lock+selection+pivot) thread, and look for my answer there. I briefly touch on how to rotate a selection around an edge.

I'm not sure that's what you want at all, but err.. well maybe some of this can help you solve your problem. Certainly best of luck. It's a very pretty plane from the looks of it.

CGTalk Moderation
01-14-2006, 09:00 AM
This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.