Latex Font Not Adjusted

[cortner]

The following code

using PyPlot, LaTeXStrings, PyCall
PyPlot.rc("font", family="serif", size=14)
fig = plot(rand(10))
xlabel(L"latex: $r [ \AA ]$")

produces a plot where all fonts are serif except the Latex text remains sans-serif.

This fixes it somewhat

using PyPlot, LaTeXStrings, PyCall
PyPlot.rc("font", family="serif", size=14)
rcParams = PyDict(PyPlot.matplotlib["rcParams"])
rcParams["text.usetex"] = true
fig = plot(rand(10))
xlabel(L"latex: $r [ \AA ]$")

but I think the font is still not consistent (though maybe one needs to fix the "serif" choice?)

Either way, this seems to be an issue since matplotlib 2.0; probably these issues are related:

• Fonts not changed in LaTeX mode (since version 2.0.0) matplotlib/matplotlib#8317
• Default ScalarFormatter ignores usetex font setting matplotlib/matplotlib#8436

I am not entirely sure what the default behaviour ought to be but the current behaviour certainly seems wrong. Maybe this will be fixed in a matplotlib update, so creating a work-around now might not be worthwhile, but I couldn't tell from those issues whether this was actually the case.

[stevengj]

This is probably a limitation of the mathtext equation renderer? In any case, it is a Matplotlib problem, not PyPlot. Defaulting to usetex = true is not feasible because it would require everyone to have a working LaTeX installation.

[cortner]

would you be open to adding an easier path to setting usetex? E.g.

PyPlot.usetex(tf) = PyDict(PyPlot.matplotlib["rcParams"])["text.usetex"] = tf

[stevengj]

How about just a global PyPlot.rcParams that is a PyDict?

[cortner]

Even better

[stevengj]

A PR to implement that would be welcome.

[cortner]

happy to, didn't take too long to do - only I had to learn more about matplotlib and now I realize that one can achieve the same with PyPlot.rc("text", usetex=true)? Maybe not worth it then?

[stevengj]

Maybe not worth it...