Cylinder rotation

Probably a terribly simple question, but can you rotate a cylinder about one end or the other, rather than from the middle?

I want one end to remain stationary during the rotation.

Thanks,

Doug

I'm not really sure I'm getting what you're asking, but if you're asking what I think you're asking, you could try rezzing a sphere, dimpling it to at least .50 (depending on where you want the axis to be), and then selecting cylinder. The center of the object should now be at one end.

The default for rotation is the center of the object, so you can used various tricks to add invisible parts so the the middle is where you want it to be. Look at those birds and fish that fly around in a circle to see this in action. Soors taht open and lose along one edge use both methods. Look at some door scripts.

It is trickier, but also possible, to use a series of moves and rotates. move the object and rotate it to point at the center of rotation. repeat ad nauseum.

You could also possibly use physics and a series of pushes in the right direction to get something like what you want.

Easiest way to rotate ANYTHING around a given point is to make a small sphere that is at the point you want to rotate the prims on, and at least temporarily link that prim to the others as the last selected prim (making it the root prim for the linkset.)

You can't arbitrarily choose a point about which to rotate a prim in SL, with the building tools.

It *may* be possible with some sort of scripting, but I rather doubt it.

Thanks everyone. I think Ceera's first option might work for me but will probably be more work than it's worth.

This is what I am trying to do (should have included this the first time - sorry).

I have created a fairly convoluted tube using Lex Neva's wonderful tool PipeMaker. I need to link this tube with other tubes. For a variety of reasons, it would be most helpful if I could manually rotate the last pipe in the tube to help align the two tubes. When I manually rotate this cylinder it rotates around it's center. So I then need to move the prim to get it lined up again. If I could have "anchored" one end and just moved (rotated) the other end it would make this alignment process much easier.

But thanks to all your helpful answers, I see that this is not really possible. So I'm probably destined to rotate, move, rotate, move, rinse repeat until I get thigns lined up correctly.

Thanks,

Doug

Far as I know it is, since there are 1-prim rotating doors

Easy, make it flexi. Moves the rotation point to one end. Once that end is in place, remove the flexi option.

A

make sphere
dimple start .50 (or end, doesn't matter)
change to cylinder

now it rotates from the end

0ne-prim rotating doors are cubes cut or dimpled to half-cubes. They still rotate on their center, but you can't see the other half. The suggestion posted here to dimple a sphere and change that into a cylinder is the same effect. It cuts away half to leave the center at the apparent end.

Try to rotate it by setting the numbers in the edit window, not by dragging it around with your mouse. By editing the roration numbers the linked object rotates around the center of the root prim, when you do it with your mouse the whole thing rotates around the center of the the linked object...