toArray method
Implementation
List<num> toArray([List<num>? array, int offset = 0]) {
array ??= List<num>.filled(offset + 4, 0);
array[offset] = _x;
array[offset + 1] = _y;
array[offset + 2] = _z;
array[offset + 3] = RotationOrders.indexOf(_order);
return array;
}