114 lines
2.8 KiB
Python
114 lines
2.8 KiB
Python
import io
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import itertools
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import logging
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import random
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import matplotlib.pyplot as plt
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import numpy as np
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import uvicorn
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from fastapi import FastAPI
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from fastapi.middleware.cors import CORSMiddleware
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from fastapi.responses import StreamingResponse
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app = FastAPI(title="Speckles API", root_path="/images")
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origins = [
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"http://localhost",
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"http://localhost:3000",
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"https://localhost",
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"https://0124816.xyz",
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"http://0124816.xyz:3001",
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]
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app.add_middleware(
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CORSMiddleware,
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allow_origins=origins,
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allow_credentials=True,
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allow_methods=["*"],
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allow_headers=["*"],
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)
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MEDIA_TYPES = {
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"png": "image/png",
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"jpeg": "image/jpeg",
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"jpg": "image/jpeg",
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"svg": "image/svg+xml",
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"pdf": "application/pdf",
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}
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@app.get("/speckles/")
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def make_wallpaper(
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speckle_colours: str,
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density: float | None = 0.12,
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size: float | None = 3,
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fileformat: str = "svg",
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orientation: str | None = "landscape",
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local: bool = False,
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):
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if not fileformat in MEDIA_TYPES:
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return
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speckle_colours = speckle_colours.split(",")
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background = speckle_colours.pop(0)
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if orientation == "portrait":
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x, y = (1080, 1920)
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elif orientation == "landscape":
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x, y = (1920, 1080)
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elif "x" in orientation:
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resolution = orientation.split("x")
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if len(resolution) != 2:
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logging.critical("input resolution has more or less than 2 dimensions")
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return
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x, y = resolution
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if all([x.isdigit(), y.isdigit()]):
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x, y = int(x), int(y)
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else:
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return
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else:
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x, y = (1920, 1080)
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speckles_per_colour = int(x / 128 * y / 128 * density)
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fig, ax = plt.subplots(figsize=(x / 120, y / 120), facecolor=background)
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ax.set_facecolor(background)
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[spine.set_color(background) for spine in ax.spines.values()]
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ax.set_xticks([])
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ax.set_yticks([])
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ax.margins(0, 0)
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for color, size in itertools.product(
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speckle_colours,
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np.logspace(0, size, 10, base=np.exp(2)),
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):
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ax.scatter(
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[random.random() * x / 8 for _ in range(speckles_per_colour)],
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[random.random() * y / 8 for _ in range(speckles_per_colour)],
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c=color,
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s=size,
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)
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fig.tight_layout()
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# plt.xlim(0, x)
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# plt.ylim(0, y)
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# plt.axis("off")
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buf = io.BytesIO()
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fig.savefig(
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buf,
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format=fileformat,
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dpi=128,
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bbox_inches="tight",
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pad_inches=0,
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)
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buf.seek(0)
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if local:
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filename = f"speckles.{fileformat}"
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with open(filename, "wb") as f:
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f.write(buf.getbuffer())
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return filename
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else:
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return StreamingResponse(content=buf, media_type=MEDIA_TYPES[fileformat])
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buf.close()
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if __name__ == "__main__":
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uvicorn.run("main:app", workers=2, port=8099, reload=False)
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