Use \N{MICRO SIGN} instead of \N{GREEK SMALL LETTER MU} in EngFormatter. #12477
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Probably a very stupid question: What's the difference between |
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None, except that by using the named entity you know immediately that's it's \u00b5 (MICRO SIGN) and not \u03bc (GREEK SMALL LETTER MU), whereas µ could be one or the other. |
This is semantically more correct, and, more importantly, is covered by
the pdf 14 core fonts: after
```
from matplotlib.ticker import EngFormatter
from pylab import *
rcParams["pdf.use14corefonts"] = True
fig, ax = plt.subplots()
ax.semilogx([1e-6, 1e-5], [0, 1])
ax.xaxis.set_major_formatter(EngFormatter(unit="s"))
savefig("/tmp/test.pdf")
```
we previously got a pdf where the µ signs were replaced by question
marks (actually this happens at the encoding to cp1252 stage), whereas
with the fix, the µ signs appear correctly.
timhoffm
approved these changes
Oct 10, 2018
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This is semantically more correct, and, more importantly, is a chararacter
covered by the pdf 14 core fonts: after
we previously got a pdf where the µ signs were replaced by question
marks (actually this happens at the encoding to cp1252 stage), whereas
with the fix, the µ signs appear correctly.
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