getPositionForIteration method
Returns an offset for the specified iteration.
For a given iteration, the offset should be unique.
Implementation
Offset getPositionForIteration(
int iteration,
ScatterContext context,
) {
final double angle = iteration * _stepRadians;
final double radius = computeRadius(angle);
final double x = ratioX! * radius * math.cos(angle + _rotationRadians);
final double y = ratioY! * radius * math.sin(angle + _rotationRadians);
return Offset(x, y);
}