Use PyQt5 to generate an executable small program: match the contents of the pos file between the start keyword and the end keyword, convert UTC time to GPS time, and clear the copied files generated in the process.
pos file is as follows:
% (x/y/z-ecef=WGS84,Q=1:fix,2:float,3:sbas,4:dgps,5:single,6:ppp,ns=# of satellites
% GPST x-ecef(m) y-ecef(m) z-ecef(m) Q ns sdx(m) sdy(m) sdz(m) vx(m/s) vy(m/s) vz(m/ s) age(s) ratio
2284 109908.000 -2654301.9349 3767744.5271 4394555.9078 5 14 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 0.0
2284 109909.000 -2654301.9454 3767744.5016 4394555.9292 5 14 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 0.0
2284 109910.000 -2654301.3708 3767745.1125 4394556.4741 5 16 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 0.0
Mini program interface:
Run the pyinstaller -F -w setup.py command to generate an executable program:
import shutil
import re
import datetime
import os
from PyQt5.QtWidgets import QApplication, QDialog, QVBoxLayout, QLabel, QLineEdit, QPushButton, QFileDialog
class MyDialog(QDialog):
def __init__(self, parent=None):
super(MyDialog, self).__init__(parent)
self.setWindowTitle('Extract pos file: copy-match-crop')
self.setGeometry(100, 100, 500, 300)
#Create a vertical layout manager
layout = QVBoxLayout()
#Create two text input boxes
label1 = QLabel('Please enter the starting keyword: UTC time, 2023-10-07 10:09:08', self)
layout.addWidget(label1)
self.text_input1 = QLineEdit(self)
self.text_input1.setText("2023-10-30 12:00:00")
layout.addWidget(self.text_input1)
label2 = QLabel('Please enter the cut-off keyword:', self)
layout.addWidget(label2)
self.text_input2 = QLineEdit(self)
self.text_input2.setText("2023-10-31 00:00:00")
layout.addWidget(self.text_input2)
#Create two file selection boxes
label3 = QLabel('Please select the pos original file:', self)
layout.addWidget(label3)
self.file_input1 = QPushButton('Browse...', self)
layout.addWidget(self.file_input1)
self.file_input1.clicked.connect(self.open_file_dialog1)
label4 = QLabel('Please select the directory to save the file:', self)
layout.addWidget(label4)
self.file_input2 = QPushButton('Browse...', self)
layout.addWidget(self.file_input2)
self.file_input2.clicked.connect(self.open_file_dialog2)
#Add confirmation execution button
self.ok_button = QPushButton('execute', self)
self.ok_button.clicked.connect(self.execute)
layout.addWidget(self.ok_button)
# Set the layout to the layout of the main window
self.setLayout(layout)
def open_file_dialog1(self):
# Open the first file selection dialog
options = QFileDialog.Options()
options |= QFileDialog.ReadOnly
fileName, _ = QFileDialog.getOpenFileName(self, 'Select pos original file', '.', '', options=options)
if fileName:
self.file_input1.setText(fileName)
def open_file_dialog2(self):
# Open the second file selection dialog
options = QFileDialog.Options()
options |= QFileDialog.ReadOnly
path2 = QFileDialog.getExistingDirectory(self, 'Select the directory to store', '.')
if path2:
self.file_input2.setText(path2)
def execute(self):
# Perform operations, you can process the contents of the input box and file selection box here
pattern_start = self.text_input1.text()
pattern_end = self.text_input2.text()
src_path = self.file_input1.text()
dst_path = self.file_input2.text()
# Example: Convert 12:00 on October 19, 2023 (UTC time) to GPS weeks and seconds within the week
utc_time_s = datetime.datetime.strptime(pattern_start, '%Y-%m-%d %H:%M:%S')
utc_time_e = datetime.datetime.strptime(pattern_end, '%Y-%m-%d %H:%M:%S')
# GPS week start time (January 6, 1980)
gps_epoch = datetime.datetime(1980, 1, 6)
# Calculate time difference
time_difference_s = utc_time_s - gps_epoch
time_difference_e = utc_time_e - gps_epoch
# Calculate the total number of seconds and weeks. GPS time is 18 seconds faster than UTC time.
total_seconds_s = time_difference_s.total_seconds() + 18
gps_week_s = total_seconds_s // (7 * 24 * 3600)
gps_week_seconds_s = total_seconds_s % (7 * 24 * 3600)
pattern_start_ss = str(int(gps_week_s)) + " " + str(gps_week_seconds_s)
total_seconds_e = time_difference_e.total_seconds() + 18
gps_week_e = total_seconds_e // (7 * 24 * 3600)
gps_week_seconds_e = total_seconds_e % (7 * 24 * 3600)
pattern_end_ee = str(int(gps_week_e)) + " " + str(gps_week_seconds_e)
# print(f"GPS week: {gps_week_s}")
# print(f"Seconds during the week: {gps_week_seconds_s}")
now = datetime.datetime.now()
if "PROD" in src_path:
file_name = "PROD_" + now.strftime('%Y%m%d_%H%M%S') + '.pos'
elif "TEST" in src_path:
file_name = "TEST_" + now.strftime('%Y%m%d_%H%M%S') + '.pos'
else:
print("SSR files for non-PROD and TEST environments")
file_name = now.strftime('%Y%m%d_%H%M%S') + '.pos'
shutil.copy2(src_path, dst_path + '/' + file_name)
dst_w_path = dst_path + '/' + 'N_' + file_name
with open(dst_path + '/' + file_name, 'r') as dst, open(dst_w_path, 'w') as dst_w:
# Write the first two lines of the file first
lineTwo = dst.readlines()[:2]
dst_w.writelines(lineTwo)
with open(dst_path + '/' + file_name, 'r') as dst, open(dst_w_path, 'a + ') as dst_w:
# Match again
#Do not write to file by default
writing=False
num_count = 0
for line in dst:
# Regular match, starting line
if re.search(pattern_start_ss, line):
writing=True
if writing:
num_count + = 1
dst_w.write(line)
# Regular matching, cut off lines
if re.search(pattern_end_ee, line):
writing=False
break
print(r' A total of %s lines have been written, starting from: %s and ending at: %s' % (num_count, pattern_start, pattern_end))
os.remove(dst_path + '/' + file_name)
if __name__ == '__main__':
importsys
app = QApplication(sys.argv)
dialog = MyDialog()
dialog.exec_()
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