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Issue # 11526 - keyword arguments for quiver/barb #11798

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Issue # 11526 - keyword arguments for quiver/barb #11798

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19 changes: 15 additions & 4 deletions lib/matplotlib/quiver.py
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Original file line number Diff line number Diff line change
Expand Up @@ -381,10 +381,17 @@ def contains(self, mouseevent):
# This is a helper function that parses out the various combination of
# arguments for doing colored vector plots. Pulling it out here
# allows both Quiver and Barbs to use it
def _parse_args(*args):
def _parse_args(*args, **kwargs):
X, Y, U, V, C = [None] * 5
args = list(args)

if len(args) == 0:
if kwargs.get("X") != None: args.append(kwargs.pop("X"))
if kwargs.get("Y") != None: args.append(kwargs.pop("Y"))
if kwargs.get("U") != None: args.append(kwargs.pop("U"))
if kwargs.get("V") != None: args.append(kwargs.pop("V"))
if kwargs.get("C") != None: args.append(kwargs.pop("C"))

# The use of atleast_1d allows for handling scalar arguments while also
# keeping masked arrays
if len(args) == 3 or len(args) == 5:
Expand All @@ -402,7 +409,7 @@ def _parse_args(*args):
else:
indexgrid = np.meshgrid(np.arange(nc), np.arange(nr))
X, Y = [np.ravel(a) for a in indexgrid]
return X, Y, U, V, C
return X, Y, U, V, C, args, kwargs


def _check_consistent_shapes(*arrays):
Expand Down Expand Up @@ -443,7 +450,9 @@ def __init__(self, ax, *args,
%s
"""
self.ax = ax
X, Y, U, V, C = _parse_args(*args)
# If **kw is used for input then output a new set of *args, **kw
# once it has been parsed out. See _parse_args
X, Y, U, V, C, args, kw = _parse_args(*args, **kw)
self.X = X
self.Y = Y
self.XY = np.column_stack((X, Y))
Expand Down Expand Up @@ -950,7 +959,9 @@ def __init__(self, ax, *args,
kw['linewidth'] = 1

# Parse out the data arrays from the various configurations supported
x, y, u, v, c = _parse_args(*args)
# If **kw is used for input then output a new set of *args, **kw
# once it has been parsed out. See _parse_args
x, y, u, v, c, args, kw = _parse_args(*args, **kw)
self.x = x
self.y = y
xy = np.column_stack((x, y))
Expand Down