Datetime axis format fixed to %Y-%m-%d

[asbjos]

Hi, and thanks for the great package.

On version 0.4.2 (by the way, the .__version__ attribute is not defined), I want to plot with a broken y-axis, and datetime objects on the x-axis.

import numpy as np
import matplotlib.pyplot as plt
from brokenaxes import brokenaxes
import datetime

startTime = datetime.datetime(2021, 8, 6, 11, 1, 20)
timeLength = 8
endTime = startTime + datetime.timedelta(seconds=timeLength)
timeStep = 0.01

fig = plt.figure()
bax = brokenaxes(
    ylims=(
        (-1.1,-0.9),
        (0.9, 1.1)
        ), 
    xlims=(
        (startTime, endTime),
        )
    )

x = np.arange(0,timeLength, timeStep)
y = np.cos(x)
datex = np.arange(startTime, endTime, datetime.timedelta(seconds=timeStep))

bax.plot(datex,y)

fig.autofmt_xdate()
[dh.remove() for dh in bax.diag_handles]
bax.draw_diags()

I get the default %Y-%m-%d date format.

As I plot over just 8 seconds, I want to format to %M:%S.
But I can't get it to reformat. Is this at all supported?

import numpy as np
import matplotlib.pyplot as plt
from brokenaxes import brokenaxes
import datetime
import matplotlib.dates as mdates

startTime = datetime.datetime(2021, 8, 6, 11, 1, 20)
timeLength = 8
endTime = startTime + datetime.timedelta(seconds=timeLength)
timeStep = 0.01

fig = plt.figure()
bax = brokenaxes(
    ylims=(
        (-1.1,-0.9),
        (0.9, 1.1)
        ), 
    xlims=(
        (startTime, endTime),
        )
    )
x = np.arange(0,timeLength, timeStep)
y = np.cos(x)
datex = np.arange(startTime, endTime, datetime.timedelta(seconds=timeStep))

bax.plot(datex,y)

fig.autofmt_xdate()

plt.gca().xaxis.set_major_formatter(mdates.DateFormatter('%M:%S')) # not doing anything

[dh.remove() for dh in bax.diag_handles]
bax.draw_diags()

[bendichter]

import numpy as np
import matplotlib.pyplot as plt
from brokenaxes import brokenaxes
import datetime
import matplotlib.dates as mdates

startTime = datetime.datetime(2021, 8, 6, 11, 1, 20)
timeLength = 8
endTime = startTime + datetime.timedelta(seconds=timeLength)
timeStep = 0.01

fig = plt.figure()
bax = brokenaxes(
    ylims=(
        (-1.1,-0.9),
        (0.9, 1.1)
        ), 
    xlims=(
        (startTime, endTime),
        )
    )
x = np.arange(0,timeLength, timeStep)
y = np.cos(x)
datex = np.arange(startTime, endTime, datetime.timedelta(seconds=timeStep))

bax.plot(datex,y)

bax.axs[1].xaxis.set_major_formatter(mdates.DateFormatter('%M:%S'))

[asbjos]

Ah, thanks!

Is there any documentation that explains this, so that I don't have to bother you with this stuff? Or is the readme the only intended documentation?

[bendichter]

@asbjos It's just the readme for now. Do you think this would have been helpful for you?

[asbjos]

Possibly. But for a newbie, I think an example is clearer. So I modified the readme in pull request #72.

Feel free to ignore parts or all of it if you think it bloats the example too much. 😃