Log scale on pcolor plot with only one tick

[samcunliffe]

Bug report

Bug summary

The color scale only has one tickmark. This is never correct.

Code for reproduction

import numpy as np
import matplotlib
matplotlib.use('pdf')
import matplotlib.pyplot as plt
from matplotlib.colors import LogNorm

gcmap = 'plasma'

# random data
mi = 0.00058265
ma = 0.00108149

X, Y = np.meshgrid(range(512), np.linspace(0, 0.3 * 199, 200))
Z = mi+(ma-mi)*np.random.random(X.shape)

# log z axis
plt.pcolor(Z, cmap=gcmap,
           norm=LogNorm(vmin=abs(Z.min()), vmax=abs(Z.max())))
plt.colorbar()
plt.xlim(0, 512)
plt.savefig("plot.pdf")

Actual outcome
plot.pdf

Expected outcome
A colorbar with at least two tickmarks.

Matplotlib version

• Operating System: Mac OS X 10.12.4
• Matplotlib Version: 1.5.2
• Python Version: 3.5.2

installed via pip3, but reproducible on other systems

[jstrube]

Looks like this is fixed in v2.0.0
plot.pdf

[tacaswell]

Closing as already fixed. If this is not the case please ping to have this reopened.

[edit] sorry for the noise, defeated by stale browser windows.