internship/olaflow/processing/sws_ola.py

import argparse
import configparser
import logging
import pathlib
import re

import matplotlib.pyplot as plt
import numpy as np
from fluidfoam import readof
from scipy import interpolate

parser = argparse.ArgumentParser(
    description="Convert swash output to olaFlow input"
)
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("sws_ola")

log.info("Starting sws -> olaFlow converter")
config = configparser.ConfigParser()
config.read("config.ini")

sws_out = pathlib.Path(config.get("swash", "npz_out"))
sws = np.load(sws_out.joinpath("sws.npz"))

x, t = sws["x"], sws["t"]

olaflow_root = pathlib.Path(config.get("olaflow", "root"))
of_x, of_y, of_z = mesh = readof.readmesh(str(olaflow_root))

watl = interpolate.interp1d(x, sws["watl"][680])

alpha_water = np.where(of_z < watl(of_x), "1", "0")

with open(olaflow_root.joinpath("0", "alpha.water"), "r") as aw_file:
    aw_raw = aw_file.read()

with open(olaflow_root.joinpath("0", "alpha.water"), "w") as aw_file:
    aw_file.write(
        re.sub(
            r"(?<=\(\n).*?(?=\n\))",
            "\n".join(alpha_water),
            aw_raw,
            count=1,
            flags=re.S,
        )
    )