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Consider vendoring the Felipa font with mplhep
See original GitHub issueAs mplhep already vendors a few fonts in the installation what are people’s (@andrzejnovak) thoughts on additionally vendoring a cursive font (Felipa)? Most of the default cursive fonts from matplotlib are not found in any of the Ubuntu PPAs that deal with fonts (to my knowledge).
An example of this causing an issue is with the following example.py script
import numpy as np
import matplotlib.pyplot as plt
import mplhep
def make_plot(title=None):
fig, ax = plt.subplots()
x = np.linspace(0, 10, 101)
y = np.square(x)
ax.plot(x, y)
ax.semilogy()
ax.set_xlabel("$x$")
ax.set_ylabel("$x^2$")
if title is not None:
ax.set_title(title)
return fig, ax
def main():
image_types = ["pdf", "png"]
fig, ax = make_plot("Default matplotlib settings")
for type in image_types:
fig.savefig(f"default.{type}")
plt.style.use(mplhep.style.ATLAS)
fig, ax = make_plot("mplhep ATLAS style")
for type in image_types:
fig.savefig(f"ATLAS_style.{type}")
plt.style.use(mplhep.style.CMS)
fig, ax = make_plot("mplhep CMS style")
for type in image_types:
fig.savefig(f"CMS_style.{type}")
if __name__ == "__main__":
main()
if we include it in the following Dockerfile
FROM ubuntu:20.04
RUN apt-get update -y && \
apt-get install -y \
fontconfig \
fonts-dejavu \
fonts-freefont-ttf \
python3 \
python3-dev \
python3-pip \
python3-venv \
vim \
wget && \
apt-get -y autoclean && \
apt-get -y autoremove && \
rm -rf /var/lib/apt/lists/*
RUN python3 -m pip install --upgrade --no-cache-dir pip setuptools wheel && \
python3 -m pip install --no-cache-dir mplhep && \
python3 -m pip list
# Create user "docker"
RUN useradd -m docker && \
cp /root/.bashrc /home/docker/
ENV HOME /home/docker
WORKDIR /code
COPY example.py example.py
# give non-root user docker ownership of files
RUN chown -R --from=root docker /home/docker && \
chown -R --from=root docker /code
USER docker
# Create font list cache and config dir
RUN python3 -c "import matplotlib.pyplot"
then both ATLAS and CMS styles will give the following warnings when running
$ docker run --rm -v $PWD:$PWD -w $PWD mplhep-issue:failing-example /bin/bash -c "python3 /code/example.py"
findfont: Font family ['cursive'] not found. Falling back to DejaVu Sans.
'texgyreheros-regular.otf' can not be subsetted into a Type 3 font. The entire font will be embedded in the output.
findfont: Font family ['cursive'] not found. Falling back to DejaVu Sans.
'texgyreheros-regular.otf' can not be subsetted into a Type 3 font. The entire font will be embedded in the output.
This is happening as no cursive font in matplotlib’s default cursive font family can be found. This can be fixed by installing the Felipa font from Google Fonts as seen in the following Dockerfile
FROM ubuntu:20.04
RUN apt-get update -y && \
apt-get install -y \
fontconfig \
fonts-dejavu \
fonts-freefont-ttf \
python3 \
python3-dev \
python3-pip \
python3-venv \
vim \
wget && \
apt-get -y autoclean && \
apt-get -y autoremove && \
rm -rf /var/lib/apt/lists/*
RUN python3 -m pip install --upgrade --no-cache-dir pip setuptools wheel && \
python3 -m pip install --no-cache-dir mplhep && \
python3 -m pip list
# Create user "docker"
RUN useradd -m docker && \
cp /root/.bashrc /home/docker/
ENV HOME /home/docker
# felipa provides a cursive font
RUN mkdir -p "${HOME}/.local/share/fonts/truetype/felipa" && \
wget --no-clobber "https://github.com/google/fonts/blob/master/ofl/felipa/Felipa-Regular.ttf?raw=true" -O "${HOME}/.local/share/fonts/truetype/felipa/Felipa-Regular.ttf" && \
ln -s "${HOME}/.local/share/fonts/truetype/felipa" /usr/share/fonts/truetype/felipa && \
fc-cache --force --verbose
WORKDIR /code
COPY example.py example.py
# give non-root user docker ownership of files
RUN chown -R --from=root docker /home/docker && \
chown -R --from=root docker /code
USER docker
# Create font list cache and config dir
RUN python3 -c "import matplotlib.pyplot"
which when built and run then (mostly) works
$ docker run --rm -v $PWD:$PWD -w $PWD mplhep-issue:working-example /bin/bash -c "python3 /code/example.py"
'texgyreheros-regular.otf' can not be subsetted into a Type 3 font. The entire font will be embedded in the output.
'texgyreheros-regular.otf' can not be subsetted into a Type 3 font. The entire font will be embedded in the output.
For the Felipa font
These fonts are licensed under the Open Font License.
You can use them freely in your products & projects - print or digital, commercial or otherwise. However, you can’t sell the fonts on their own.
it seems that it should be permissilbe to vendor Felipa with mplhep, and that this could reduce a lot of warnings people might have.
Thoughts?
Issue Analytics
- State:
- Created 3 years ago
- Comments:16 (16 by maintainers)
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Ok, thanks a lot for finding that @kratsg. This seems to be a good comparison of Math/TeX fonts https://tex.stackexchange.com/questions/425098/which-opentype-math-fonts-are-available and it looks like the DejaVU Math is mostly as good as any here. I would support adding this to all styles that have custom mathtext.
I think #241 should be done either way.
Ok, this issue is because of
mathtext.cal(for calligraphic settings) which we should probably set to TeX Gyre Pagella everywhere.Playing around more with the docker image
you can see these errors come up. And digging further, using the initialized font manager with true-type fonts which I think are the ones used for pdfs anyway
there’s certainly not a lot of good default options here. E.G.
In the example code above, I tried to play around with some other cursive fonts
but these were giving similar errors anyway. So I added this block instead
which runs fine with this output
so there’s not really a good default calligraphic font to rely on from what I understand.