fig-format for Notebook generated plots

[PascalGitz]

Description

Hey

I'm currently using a book structure to create a pdf that contains some jupyter notebooks. I would like to include the code generated plots as vector graphics (SVG or PDF).

This is my structure

project:
  type: book

book:
  title: "Beispielsammlung"
  subtitle: "Komplettiert die Vorlesung Baudynamik"
  author: "Pascal Gitz & Dr. Stephan Gollob"
  date: "2023-08-02"
  date-format: full
  chapters:
    - index.qmd
    - U1_rayleigh.ipynb
    - U2_EMS.ipynb
    - Untitled-1.qmd
    - references.qmd

bibliography: references.bib


format:
  pdf:
    documentclass: scrreprt
    toc-depth: 2
    fig-pos: 'H'
    fig-format: pdf
    lang: de

In my Untitled-1.qmd file i have the following plot, which gets included as desired (as a PDF).

title: "test"
format: pdf
execute:
  echo: false
  warning: false

Results

#| echo: false
#| label: fig-mew
#| fig-cap: Awesome figure.
import matplotlib.pyplot as plt
plt.plot([1, 2, 3], [1, 2, 3])
plt.show()

Plotting the same plot in my U2_EMS.ipynb results in a non vector graphic (probably .png).

How can i change the fig-format for Notebooks?

[mcanouil]

You need to ask matplotlib to output the figure as whatever you want, see for example https://stackoverflow.com/questions/24525111/how-can-i-get-the-output-of-a-matplotlib-plot-as-an-svg.

Did you try setting fig-format in your notebook?

PS: could you format properly your code? You need to enclose with more backticks than you have in the code, i.e., ````qmd in theory.

[PascalGitz]

Thank you for the response. I could not fix my problem.
I assume you meant saving the plot as an .svg and then including it in a markdown cell? That would definitly work. But i would like to include the code generated plots as .svg directly. It works with the plots generated in a .qmd file, but not with the ones generated in a notebook.

I added 2 examples to describe my problem further.
notebook_test.zip
test.zip

What is strange to me, that it behaves differently according to the file format (.ipynb to .qmd). Could there be a difference in using Ipython vs python?

[mcanouil]

No, I meant you have to specify the graphic device / backend, see https://matplotlib.org/stable/users/explain/backends.html.

This being said, this is mostly a Jupyter question rather than Quarto.

You could also export then display

```python
import matplotlib.pyplot as plt
from IPython.display import SVG

plt.plot([1, 2, 3], [1, 2, 3])
plt.savefig('myfigure.svg')
SVG(filename='myfigure.svg')
```

To note, when running a Quarto document using the Jupyter kernel, the document is translated as a Jupyter Notebook.

[PascalGitz]

Thank you! I added %config InlineBackend.figure_formats = ['svg'] to my notebook and it works fine.