I still have no good solution on how to create an array modifier for an object to
1) Rotate in a circle (I know it can be done with an empty that is rotated) but... (see 2)
2) The objects should keep a certain rotation along a plane like this:
So for example where the 3d cursor is there could be an empty with the same rotation as the cube...
... then rotate the empty around the local z axis... will work.
The only thing is now: Let's assume that I have 10 array items. What is the exact rotation of the empty (x, y, z) to create a perfect circle? Because I want to define this programmatically with Python.