OpenDroneMap-ODM/opendm/system.py

74 wiersze
1.9 KiB
Python

import os
import errno
import json
import datetime
import sys
import subprocess
import string
from opendm import context
from opendm import log
def get_ccd_widths():
"""Return the CCD Width of the camera listed in the JSON defs file."""
with open(context.ccd_widths_path) as f:
sensor_data = json.loads(f.read())
return dict(zip(map(string.lower, sensor_data.keys()), sensor_data.values()))
def run(cmd):
"""Run a system command"""
log.ODM_DEBUG('running %s' % cmd)
retcode = subprocess.call(cmd, shell=True)
if retcode < 0:
raise Exception("Child was terminated by signal {}".format(-retcode))
elif retcode > 0:
raise Exception("Child returned {}".format(retcode))
def now():
"""Return the current time"""
return datetime.datetime.now().strftime('%a %b %d %H:%M:%S %Z %Y')
def now_raw():
return datetime.datetime.now()
def benchmark(start, benchmarking_file, process):
"""
runs a benchmark with a start datetime object
:return: the running time (delta)
"""
# Write to benchmark file
delta = (datetime.datetime.now() - start).total_seconds()
with open(benchmarking_file, 'a') as b:
b.write('%s runtime: %s seconds\n' % (process, delta))
def run_and_return(cmdSrc, cmdDest=None):
"""Run a system command and return the output"""
process = subprocess.Popen(cmdSrc, stdout=subprocess.PIPE, shell=True)
stdout, stderr = process.communicate()
return stdout.decode('ascii')
def mkdir_p(path):
"""Make a directory including parent directories.
"""
try:
os.makedirs(path)
except os.error as exc:
if exc.errno != errno.EEXIST or not os.path.isdir(path):
raise
def calculate_EPSG(utmZone, south):
"""Calculate and return the EPSG"""
if south:
return 32700 + utmZone
else:
return 32600 + utmZone