example/js/svg.js
function(d, cx, cy) {
    return this.transform({ rotation: d, cx: cx, cy: cy })
  }
function(d, cx, cy) {
    return this.transform({ rotation: d, cx: cx, cy: cy })
  }
function ( d , cx , cy ) { return this . transform ( { rotation : d , cx : cx , cy : cy } ) }
Map rotation to transform
Map rotation to transform