Add animated figures to your Quarto presentations.
pip install pyfragments
A Revealjs presentation created with Quarto, which displays an animated matplotlib figure:
This is created with the following code,
in a Quarto .qmd file.
---
format: revealjs
---
## Example of an animated figure
Move to the next slide to see the transitions.
```{python}
# | output: asis
import matplotlib.pyplot as plt
from pyfragments import AnimatedFigure
with AnimatedFigure() as ani:
plt.xlim(0, 10)
plt.ylim(0, 10)
for i in range(10):
with ani.fragment():
plt.scatter(i, i)
```To use SVG images,
each call to a matplotlib function must include a group id (gid) with a value of .fragment.
Note: it is important to set embed-resources: true
in the YAML options.
---
format: revealjs
embed-resources: true
---
# Example of an animated figure
## Animated scatterplot
Move to the next slide to see the transitions.
```{python}
from matplotlib.figure import Figure
from pyfragments.svg import animate
fig = Figure()
ax = fig.add_subplot()
for i in range(10):
ax.scatter(i, i, gid=".fragment")
animate(fig)
```To change the order of fragments,
or make different elements appear at the same time,
use .fragment-<num>:
ax.scatter(..., gid=".fragment-2") # appears second
ax.scatter(..., gid=".fragment-1") # appears first
ax.scatter(..., gid=".fragment-2") # appears secondTo allow animation of images,
such as with ax.imshow,
it is important to disable image.composite_image:
import matplotlib
matplotlib.rc("image", composite_image=False)
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