def rmaskout(data, x, y, mask):
"""
Maskout data by polygons - the elements outside polygons will be removed
:param data: (*array_like*) Array data for maskout.
:param x: (*array_like*) X coordinate array.
:param y: (*array_like*) Y coordinate array.
:param mask: (*list*) Polygon list as maskout borders.
:returns: (*list*) Maskouted data, x and y array list.
"""
if not isinstance(mask, (list, ArrayList)):
mask = [mask]
r = ArrayMath.maskout_Remove(data.asarray(), x.asarray(), y.asarray(), mask)
return MIArray(r[0]), MIArray(r[1]), MIArray(r[2])
