You might be interested in [mapping/polar] which will convert your x,y coords to polar coords (angle, radius). You could use the angle for the panning location, and the radius for some kind of distance algorithm with reverb or something.
.hc
thanks for that suggestion : ) yes i am indeed interested..sounds fab.. are these externals ? what library do they refer to ? .. i tried to make a [mapping] and then a [polar] and then a [mapping/polar] and it did not work.. im using PD extended version.
alexandre