I have actually done this a couple of years ago but forgotten quite how. I know I used the cos object and I think sin.

Could anyone give pointer to me on how one can achieve this.

All I'm after is a circle to rotate around a point, like a planet rotating around the sun. Just 2D.

Are radians required, or is it more simple.

Anyone?

It's just a matter of using [translateXYZ] and [rotateXYZ] in the right order

http://www.pdpatchrepo.info/hurleur/orbit.pd

Ah, thanks a lot, it's a different method to what I used before.

Thank you - really helped me out.

You can certainly do it with sin and cos as well. sin and cos accept radians, and you can use their output as coordinates to position an object on a circle. I find this is a better way, because you do not need to separate the transform if you want to transform further or use recursion.

sin and cos version attached

http://www.pdpatchrepo.info/hurleur/orbit2.pd

Thanks again dwan, all this stuff is seriously useful to help my understanding, and hopefully others' too.