Before I drag out all of my trig ....

Imagine that you have a chessboard that rezzes peices onto its surface (not linked), you can use the normal REZ and assuming the board is perfectly aligned with the axes you can figure out where to rez them pretty easily.

Now, tilt the board in any of the three directions. If I wanted to rez the peices after the rotate I would need to bust out a lot of sin, cos, etc.

Am I missing something that makes this easier?

Yes. Rotations. If you do v * r where v is a vector and r is a rotation then v gets rotated by r. So if you know the offset of your chesspiece from the center of the board when the board is at ZERO_ROTATION (v), and you know the rotation of your board (r), v * r should give you the correct offset in rotated position.

I don't know if this is what you are asking but if it was me I would rez the board and pieces then select link all the chess pieces. Then rotate the table and then rotate all the linked pieces and then unlink them. Have to be careful that the pieces aren't unlinked in themselves. Be sure to choose them as a whole and just unlink from the set.

Dnali,

The project isnt a chess board exactly, it was just the easiest way to explain what I am trying to do without getting bogged down in other details. Besides, I need to be able to 'move' the peices (maybe by de-rezzing and re-rezzing them).

Seifert,

Thanks for your help. As soon as I get a chance to get more done on this I will try it out. I see the logic (I think) but rotations always seems to knock me on my .... butt.

-Ali