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internship/swash/processing/animate.py

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import argparse
import configparser
import logging
import pathlib
import matplotlib.animation as animation
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import matplotlib.pyplot as plt
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import numpy as np
parser = argparse.ArgumentParser(description="Animate swash output")
parser.add_argument("-v", "--verbose", action="count", default=0)
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parser.add_argument("-c", "--config", default="config.ini")
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args = parser.parse_args()
logging.basicConfig(level=max((10, 20 - 10 * args.verbose)))
log = logging.getLogger("post")
log.info("Starting post-processing")
config = configparser.ConfigParser()
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config.read(args.config)
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inp = pathlib.Path(config.get("post", "inp"))
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out = pathlib.Path(config.get("post", "out"))
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out.mkdir(parents=True, exist_ok=True)
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def data(var):
return np.load(inp.joinpath(f"{var}.npy"))
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x = data("x")
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t = data("t")
watl = data("watl")
botl = data("botl")
wl = np.maximum(watl, -botl)
# print(x.size, -np.arange(0, 1 * bathy.hstru.size, 1)[::-1].size)
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fig, ax = plt.subplots()
ax.plot(x, -botl, c="k")
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ax.set(xlim=(x.min(), x.max()), ylim=(-30, 10), xlabel="x (m)", ylabel="z (m)")
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tit = ax.text(
0.5,
0,
f"t={t[0]}",
horizontalalignment="center",
verticalalignment="bottom",
transform=ax.transAxes,
)
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ax.grid()
# ax.fill_between(
# x, -botl, -data["botl"] + bathy.hstru, color="k", alpha=0.2
# )
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(line,) = ax.plot(x, wl[0])
def animate(i):
line.set_ydata(wl[i])
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tit.set_text(f"t={t[i]*1e-3:.2f}s")
return (line, tit)
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ani = animation.FuncAnimation(
fig, animate, frames=wl[:, 0].size, interval=20, blit=True
)
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ani.save(out.joinpath("anim.mp4"))