I want to display the minor z ticks on an Axes3D plot without minor gridlines.

The starting figure looks like this:

The code is here:

import numpy as np
import matplotlib
from matplotlib.figure import Figure
test_fig = Figure()
_x = np.arange(4)
_y = np.arange(5)
_xx, _yy = np.meshgrid(_x, _y)
x, y = _xx.ravel(), _yy.ravel()
top = x + y
bottom = np.zeros_like(top)
width = depth = 1
test_ax = test_fig.add_subplot(111, projection='3d')
test_ax.bar3d(x, y, bottom, width, depth, top, shade=True, label='my label')

I've tried:

• test_ax.zaxis.set_minor_locator(AutoMinorLocator())

Paired with several variations of the follow, trying to 'trick' Matplotlib to hide the minor grid lines:

• test_ax.zaxis._axinfo['grid']['minor'] = {'linewidth': 0}
• test_ax.zaxis._axinfo['grid']['minor'] = {'gridOn': False}

I'd prefer not to use protected members of Matplotlib (_axinfo) if there's a reasonable way not to but at this point I'm open to nearly anything.

My latest attempt is to try to 'trick' Matplotlib:

test_ax.zaxis.set_minor_locator(AutoMinorLocator())
test_ax.zaxis.grid(visible=True, which='minor', alpha=0.0)

I tried changing the visible argument to True because when it's False nothing changes. I tried changing the linewidth, etc. with no results. The documentation for zaxis.grid() is not as built out as other areas of the documentation, it's not helpful.

The latest attempt yields the following chart:

What should I try next?

I want to display the minor z ticks on an Axes3D plot without minor gridlines.

The starting figure looks like this:

The code is here:

import numpy as np
import matplotlib
from matplotlib.figure import Figure
test_fig = Figure()
_x = np.arange(4)
_y = np.arange(5)
_xx, _yy = np.meshgrid(_x, _y)
x, y = _xx.ravel(), _yy.ravel()
top = x + y
bottom = np.zeros_like(top)
width = depth = 1
test_ax = test_fig.add_subplot(111, projection='3d')
test_ax.bar3d(x, y, bottom, width, depth, top, shade=True, label='my label')

I've tried:

• test_ax.zaxis.set_minor_locator(AutoMinorLocator())

Paired with several variations of the follow, trying to 'trick' Matplotlib to hide the minor grid lines:

• test_ax.zaxis._axinfo['grid']['minor'] = {'linewidth': 0}
• test_ax.zaxis._axinfo['grid']['minor'] = {'gridOn': False}

I'd prefer not to use protected members of Matplotlib (_axinfo) if there's a reasonable way not to but at this point I'm open to nearly anything.

My latest attempt is to try to 'trick' Matplotlib:

test_ax.zaxis.set_minor_locator(AutoMinorLocator())
test_ax.zaxis.grid(visible=True, which='minor', alpha=0.0)

I tried changing the visible argument to True because when it's False nothing changes. I tried changing the linewidth, etc. with no results. The documentation for zaxis.grid() is not as built out as other areas of the documentation, it's not helpful.

The latest attempt yields the following chart:

What should I try next?

• matplotlib
• matplotlib-3d
• z-axis

1 Answer 1

Can only remove all z gridlines with:

test_ax.zaxis.gridlines.set_visible(False)

or

test_ax.zaxis._axinfo['grid']['linewidth'] = 0.0

in Matplotlib 3.8.4 (see Online Matplotlib Compiler )