Bug report

Bug summary

It does not seem possible to use LogLocator to generate a specific number of log-spaced tick locations without a live axis.

Code for reproduction

import matplotlib as mpl
ticker = mpl.ticker.LogLocator(numticks=2)
ticker.tick_values(1, 10)

array([ 0.1, 1. , 10. , 100. ])

Expected outcome

array([ 1. , 10. , ])

Matplotlib version

• Matplotlib version: 2.2.2
• Python version: 3.6