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Added post-processing config

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This commit is contained in:
Edgar P. Burkhart 2022-03-03 11:27:22 +01:00
parent 14ff5eef13
commit 55d19e710f
Signed by: edpibu
GPG key ID: 9833D3C5A25BD227
2 changed files with 21 additions and 2 deletions
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2
swash/config.ini
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@ -17,3 +17,5 @@ out=out
[post] [post]
out=out_post out=out_post
dt=0.25
x0=125

21
swash/processing/post.py
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@ -1,5 +1,7 @@
import configparser import configparser
import pathlib import pathlib
import argparse
import logging
import numpy as np import numpy as np
import pandas as pd import pandas as pd
@ -9,15 +11,25 @@ import scipy.signal as sgl
from .read_swash import * from .read_swash import *
parser = argparse.ArgumentParser(description="Pre-process bathymetry")
parser.add_argument("-v", "--verbose", action="count", default=0)
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() config = configparser.ConfigParser()
config.read("config.ini") config.read("config.ini")
cache = pathlib.Path(config.get("data", "out")) cache = pathlib.Path(config.get("data", "out"))
root = pathlib.Path(config.get("swash", "out")) root = pathlib.Path(config.get("swash", "out"))
log.info(f"Reading bathymetry from '{cache}'")
bathy = pd.read_hdf(cache.joinpath("bathy.h5"), "bathy") bathy = pd.read_hdf(cache.joinpath("bathy.h5"), "bathy")
n = bathy.index.size n = bathy.index.size
log.info(f"Reading swash output from '{root}'")
botl = read_nohead_scalar(root.joinpath("botl.dat"), n) botl = read_nohead_scalar(root.joinpath("botl.dat"), n)
dep = np.maximum(0, read_nohead_scalar(root.joinpath("dep.dat"), n)) dep = np.maximum(0, read_nohead_scalar(root.joinpath("dep.dat"), n))
vel = read_nohead_vect(root.joinpath("vel.dat"), n) vel = read_nohead_vect(root.joinpath("vel.dat"), n)
@ -25,8 +37,9 @@ vel = read_nohead_vect(root.joinpath("vel.dat"), n)
n_t = botl.shape[0] n_t = botl.shape[0]
# Cospectral calculations # Cospectral calculations
pos_x = n // 10 pos_x = config.getint("post", "x0")
f = 1 / 0.25 f = 1 / config.getfloat("post", "dt")
log.info(f"Computing reflection coefficient at x={pos_x}")
eta = (dep - botl)[n_t // 2 :, pos_x] eta = (dep - botl)[n_t // 2 :, pos_x]
u = vel[n_t // 2 :, 0, pos_x] u = vel[n_t // 2 :, 0, pos_x]
@ -41,6 +54,7 @@ R = np.sqrt(
) )
# Plotting # Plotting
log.info("Plotting results")
fig, (ax_dep, ax_vel) = plt.subplots(2) fig, (ax_dep, ax_vel) = plt.subplots(2)
ax_dep.plot((dep - botl)[:, pos_x], label="dep", color="#0066ff") ax_dep.plot((dep - botl)[:, pos_x], label="dep", color="#0066ff")
@ -63,7 +77,10 @@ ax_r.set(ylim=(0, 1), xlabel="f (Hz)", ylabel="R")
ax_r.grid() ax_r.grid()
out = pathlib.Path(config.get("post", "out")) out = pathlib.Path(config.get("post", "out"))
log.info(f"Saving plots in '{out}'")
out.mkdir(exist_ok=True) out.mkdir(exist_ok=True)
fig.savefig(out.joinpath(f"{pos_x}.png")) fig.savefig(out.joinpath(f"{pos_x}.png"))
fig_r.savefig(out.joinpath(f"R{pos_x}.png")) fig_r.savefig(out.joinpath(f"R{pos_x}.png"))
log.info("Finished post-processing")