matplotlib.colors.
to_rgba_array
(c, alpha=None)[source]¶Convert c to a (n, 4) array of RGBA colors.
If alpha is not None
, it forces the alpha value. If c is
"none"
(case-insensitive) or an empty list, an empty array is returned.
If c is a masked array, an ndarray is returned with a (0, 0, 0, 0)
row for each masked value or row in c.