"""This module contains the `Phonon` class."""
from pathlib import Path
from typing import TYPE_CHECKING, Generator
import numpy as np
from irradiapy.srim.ofiles.srimfile import SRIMFile
if TYPE_CHECKING:
from irradiapy.srim.srimdb import SRIMDB
[docs]
class Phonon(SRIMFile):
"""Class to handle `PHONON.txt` file."""
[docs]
def process_file(self, phonon_path: Path) -> None:
"""Processes `PHONON.txt` file.
Parameters
----------
phonon_path : Path
`PHONON.txt` path.
"""
cur = self.cursor()
cur.execute(
(
"CREATE TABLE phonon"
"(depth REAL, phonons_ions REAL, phonons_recoils REAL)"
)
)
with open(phonon_path, "r", encoding="utf-8") as file:
for line in file:
if line.startswith(" DEPTH"):
break
next(file)
next(file)
for _ in range(100):
line = next(file)
data = list(map(float, line[:-1].split()))
depth = data[0]
phonons_ions = data[1]
phonons_recoils = data[2]
cur.execute(
(
"INSERT INTO phonon(depth, phonons_ions, phonons_recoils)"
"VALUES(?, ?, ?)"
),
[depth, phonons_ions, phonons_recoils],
)
cur.close()
self.srim.commit()
[docs]
def read(
self, what: str = "*", condition: str = ""
) -> Generator[tuple, None, None]:
"""Reads phonon data from the database as a generator.
Parameters
----------
what : str
Columns to select.
condition : str
Condition to filter data.
Yields
------
Generator[tuple, None, None]
Data from the database.
"""
cur = self.cursor()
cur.execute(f"SELECT {what} FROM phonon {condition}")
while True:
data = cur.fetchone()
if data:
yield data
else:
break
cur.close()
[docs]
def merge(self, srimdb2: "SRIMDB") -> None:
"""Merges the phonon table with another database.
Parameters
----------
srimdb2 : SRIMDB
SRIM database to merge.
"""
nions1 = self.srim.nions
nions2 = srimdb2.nions
nions = nions1 + nions2
phonon1 = np.array(list(self.read()))
phonon2 = np.array(list(srimdb2.phonon.read()))
phonon1[:, 1:] *= nions1
phonon2[:, 1:] *= nions2
phonon1[:, 1:] += phonon2[:, 1:]
phonon1[:, 1:] /= nions
cur = self.cursor()
cur.execute("DELETE FROM phonon")
cur.executemany(
(
"INSERT INTO phonon(depth, phonons_ions, phonons_recoils)"
"VALUES(?, ?, ?)"
),
phonon1,
)
cur.close()
self.srim.commit()