I'm going to close this, as there are quite a few issues saying the same thing. We should boost it to the call this week, but I think the plan is to deprecate arrow: #20387

I'm going to close this, as there are quite a few issues saying the same thing.

Sorry, I haven't found them.

We should boost it to the call this week [...]

All right, thank you!

In the meantime, is there anything other than a manual / cumbersome transformation like ax.transAxes.inverted().transform(ax.transData.transform((x,y)))?

Edit: I mean

fig, axs = plt.subplots(nrows=3, layout='constrained')

# Coord. Data -> Axes
ta = lambda x, y, ax: ax.transAxes.inverted().transform(ax.transData.transform((x, y)))

for ii, ax in enumerate(axs.flat):
    
    ax.set_xlim( [ ii/5, 1 - ii/5 ] )
    ax.set_ylim( [ .5 - (ii+1)/50, .5 + (ii+1)/50 ] )
    
    dx, dy = ta( 1, 1, ax ) - ta( 0, 0, ax )
    ax.arrow( *ta( 1 - ii/5, .5, ax=ax ), dx * ( 2 * ii/5 - 1 ), 0, length_includes_head=True, linewidth=0, width=.05, head_length=.05, transform=ax.transAxes )

ax.annotate is probably the best option https://matplotlib.org/stable/tutorials/text/annotations.html#sphx-glr-tutorials-text-annotations-py when used with an empty string.

ax.annotate is probably the best option https://matplotlib.org/stable/tutorials/text/annotations.html#sphx-glr-tutorials-text-annotations-py when used with an empty string.

Nice! 🥳 I store it in my box of secret mpl knowledge next to the get_xticks-thing. 😋

import matplotlib.pyplot as plt

fig, axs = plt.subplots(nrows=3, layout='constrained')

for ii, ax in enumerate(axs.flat):

    ax.set_xlim( [ ii/5, 1 - ii/5 ] )
    ax.set_ylim( [ .5 - (ii + 1) / 50, .5 + (ii + 1) / 50 ] )

    ax.annotate( "", xytext=(1 - ii/5, .5), xy=(ii/5, .5), arrowprops={ 'width':2, 'linewidth':0 } )

I store it in my box of secret mpl knowledge..

Where else can we put this to make it less secret!

Should we put a note admonition in the arrow docstring? I mean it’s documented in the notes section, but that can be overlooked easily.