Streamjoy turns your images into animations using sensible defaults for fun, hassle-free creation.
It cuts down the boilerplate and time to work on animations, and it's simple to start with just a few lines of code.
Install it with just pip to start, blazingly fast!
pip install streamjoy
- 🌐 Animate from URLs, files, and datasets
- 🎨 Render images with default or custom renderers
- 🎬 Provide context with a short intro splash
- ⏸ Add pauses at the beginning, end, or between frames
- ⚡ Execute read, render, and write in parallel
- 🔗 Connect multiple animations together
Stream from a list of images--local files work too!
from streamjoy import stream
if __name__ == "__main__":
URL_FMT = "https://www.goes.noaa.gov/dimg/jma/fd/vis/{i}.gif"
resources = [URL_FMT.format(i=i) for i in range(1, 11)]
stream(resources, uri="goes.gif") # .gif, .mp4, and .html supported
Specify a few more keywords to:
- add an intro title and subtitle
- adjust the pauses
- optimize the GIF thru pygifsicle
from streamjoy import stream
if __name__ == "__main__":
URL_FMT = "https://www.goes.noaa.gov/dimg/jma/fd/vis/{i}.gif"
resources = [URL_FMT.format(i=i) for i in range(1, 11)]
himawari_stream = stream(
resources,
uri="goes_custom.gif",
intro_title="Himawari Visible",
intro_subtitle="10 Hours Loop",
intro_pause=1,
ending_pause=1,
optimize=True,
)
If you'd like to preview the repr before writing, drop uri.
Output:
<AnyStream>
---
Output:
max_frames: 50
fps: 10
display: True
scratch_dir: streamjoy_scratch
in_memory: False
---
Intro:
intro_title: Himawari Visible
intro_subtitle: 10 Hours Loop
intro_watermark: made with streamjoy
intro_pause: 1
intro_background: black
---
Client:
batch_size: 10
processes: True
threads_per_worker: None
---
Resources: (10 frames to stream)
https://www.goes.noaa.gov/dimg/jma/fd/vis/1.gif
...
https://www.goes.noaa.gov/dimg/jma/fd/vis/10.gif
---Then, when ready, call the write method to save the animation!
himawari_stream.write()Connect multiple streams together to provide further context.
from streamjoy import stream, connect
URL_FMTS = {
"visible": "https://www.goes.noaa.gov/dimg/jma/fd/vis/{i}.gif",
"infrared": "https://www.goes.noaa.gov/dimg/jma/fd/rbtop/{i}.gif",
}
if __name__ == "__main__":
visible_stream = stream(
[URL_FMTS["visible"].format(i=i) for i in range(1, 11)],
intro_title="Himawari Visible",
intro_subtitle="10 Hours Loop",
)
infrared_stream = stream(
[URL_FMTS["infrared"].format(i=i) for i in range(1, 11)],
intro_title="Himawari Infrared",
intro_subtitle="10 Hours Loop",
)
connect([visible_stream, infrared_stream], uri="goes_connected.gif")
You can also render images directly from datasets, either through a custom renderer or a built-in one, and they'll also run in parallel!
The following example requires xarray, cartopy, matplotlib, and netcdf4.
pip install xarray cartopy matplotlib netcdf4import numpy as np
import cartopy.crs as ccrs
import matplotlib.pyplot as plt
from streamjoy import stream, wrap_matplotlib
@wrap_matplotlib()
def plot(da, central_longitude, **plot_kwargs):
time = da["time"].dt.strftime("%b %d %Y").values.item()
projection = ccrs.Orthographic(central_longitude=central_longitude)
subplot_kw = dict(projection=projection, facecolor="gray")
fig, ax = plt.subplots(figsize=(6, 6), subplot_kw=subplot_kw)
im = da.plot(ax=ax, transform=ccrs.PlateCarree(), add_colorbar=False, **plot_kwargs)
ax.set_title(f"Sea Surface Temperature Anomaly\n{time}", loc="left", transform=ax.transAxes)
ax.set_title("Source: NOAA OISST v2.1", loc="right", size=5, y=-0.01)
ax.set_title("", loc="center") # suppress default title
plt.colorbar(im, ax=ax, label="°C", shrink=0.8)
return fig
if __name__ == "__main__":
url = (
"https://www.ncei.noaa.gov/data/sea-surface-temperature-"
"optimum-interpolation/v2.1/access/avhrr/201008/"
)
pattern = "oisst-avhrr-v02r01.*.nc"
stream(
url,
uri="oisst.gif",
pattern=pattern, # GifStream.from_url kwargs
max_files=30,
renderer=plot, # renderer related kwargs
renderer_iterables=[np.linspace(-140, -150, 30)], # iterables; central longitude per frame (30 frames)
renderer_kwargs=dict(cmap="RdBu_r", vmin=-5, vmax=5), # renderer kwargs
# cmap="RdBu_r", # renderer_kwargs can also be propagated for convenience
# vmin=-5,
# vmax=5,
)
Check out all the supported formats here or best practices here. (Or maybe you're interested in the design--here)
❤️ Made with considerable passion.
🌟 Appreciate the project? Consider giving a star!
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