onHover method
Handle hover event
Implementation
void onHover(PointerEvent event) {
hoveringPoint = event.localPosition;
_hoverNotifier.value = event.localPosition;
// Don't call setState - the ValueNotifier will trigger foreground repaint
widget.onHover?.call(
convert2DPointToSphereCoordinates(
event.localPosition,
center,
convertedRadius(),
rotationY,
rotationZ,
),
);
}