Two transforms: one disc, one julian. Not quite that simple - some adjustments must be made to get anything half-decent. The disc transform should have high weight and both it and its post transform should be scaled down a little. A final transform produces dramatic effects: the polars open out the structure into the orthogonal whereas curl and bipolar bend it crazily.
A versatile style responding to changes in the julian variables, transform rotation and translation as well as linking and substitution.