Jul 29, 2023 · Sep 5, 2023 · Sep 6, 2023 · Mar 23, 2024 · Mar 23, 2024 · Mar 23, 2024
diff --git a/doc/users/next_whats_new/add_Quiver_setters.rst b/doc/users/next_whats_new/add_Quiver_setters.rst
 Add ``U``, ``V`` and ``C`` setter to ``Quiver``
 -----------------------------------------------

 The ``U``, ``V`` and ``C`` values of the `~matplotlib.quiver.Quiver`
 can now be changed after the collection has been created.

 .. plot::
    :include-source: true

    import matplotlib.pyplot as plt
    from matplotlib.quiver import Quiver
    import numpy as np

    fig, ax = plt.subplots()
    X = np.arange(-10, 10, 1)
    Y = np.arange(-10, 10, 1)
    U, V = np.meshgrid(X, Y)
    C = np.hypot(U, V)
    # When X and Y are 1D and U, V are 2D, X, Y are expanded to 2D
    # using X, Y = np.meshgrid(X, Y)
    qc = ax.quiver(X, Y, U, V, C)

    qc.set_U(U/5)

    # The number of arrows can also be changed.

    # Get new X, Y, U, V, C
    X = np.arange(-10, 10, 2)
    Y = np.arange(-10, 10, 2)
    U, V = np.meshgrid(X, Y)
    C = np.hypot(U, V)
    # Use 2D X, Y coordinate (X, Y will not be expanded to 2D)
    X, Y = np.meshgrid(X, Y)

    # Set new values
    qc.set_XYUVC(X, Y, U, V, C)
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,36 @@
		Add ``U``, ``V`` and ``C`` setter to ``Quiver``
		-----------------------------------------------

		The ``U``, ``V`` and ``C`` values of the `~matplotlib.quiver.Quiver`
		can now be changed after the collection has been created.

		.. plot::
		:include-source: true

		import matplotlib.pyplot as plt
		from matplotlib.quiver import Quiver
		import numpy as np

		fig, ax = plt.subplots()
		X = np.arange(-10, 10, 1)
		Y = np.arange(-10, 10, 1)
		U, V = np.meshgrid(X, Y)
		C = np.hypot(U, V)
		# When X and Y are 1D and U, V are 2D, X, Y are expanded to 2D
		# using X, Y = np.meshgrid(X, Y)
		qc = ax.quiver(X, Y, U, V, C)

		qc.set_U(U/5)

		# The number of arrows can also be changed.

		# Get new X, Y, U, V, C
		X = np.arange(-10, 10, 2)
		Y = np.arange(-10, 10, 2)
		U, V = np.meshgrid(X, Y)
		C = np.hypot(U, V)
		# Use 2D X, Y coordinate (X, Y will not be expanded to 2D)
		X, Y = np.meshgrid(X, Y)

		# Set new values
		qc.set_XYUVC(X, Y, U, V, C)