#22 cube_sphere gui should lock at periphery if in 2D ambimode.

[Winfried Ritsch]

When in 2D circular mode, the sound jumps if you cross the middle point.

A solution is to lock the the pointer to the edge of the sphere.

mfg winfried

[IOhannes m zmölnig]

this can well be implemented on the abstraction side of things.
i started this already, only remaining thing (easy to solve) is how to get the fact that we are doing 2d only into the notion of the gui...