def extract_rxp(filename, tmpDir, sbet=None):
''' Extract pointcloud data from raw RXP file to ascii GZ file for further processing '''
print "\n#{}: Opening rxp file {}".format(time.strftime('%X %x'), filename)
rxp = RXPFile()
if sbet is None:
print "\n#{}: Opening rxp file {}".format(time.strftime('%X %x'), filename)
rxp.open(filename)
else:
print "\n#{}: Opening rxp file {} with sbet {}".format(time.strftime('%X %x'), filename, sbet)
rxp.open_w_sbet(filename, sbet)
results = []
while True:
args = rxp.read(SKIP, FILTER)
if(args == 0):
break
results.append(write_extracted(args[0], args[1], args[2], tmpDir))
return [filename, results]
from scanifc import RXPFile
import sys
import os
if __name__ == '__main__':
# Get command line arguments, else fail
if(len(sys.argv) != 3):
print "{} takes two arguments".format(sys.argv[0])
print "Usage: python rxpSplitter.py *.rxp seconds"
exit(0)
# The rxp file to process
filename = sys.argv[1]
sec_split = sys.argv[2]
# Create directory for split files
# inDir/basename_split/ -split rxp files
inDir, basename = os.path.split(filename)
# Check if split directory exists, if not make it
splitDir = os.path.join(inDir, "{}_split".format(basename))
if not os.path.exists(splitDir):
os.makedirs(splitDir)
rxp = RXPFile()
rxp.open(filename)
rxp.split_rxp(1, splitDir, True)
rxp.close()
os.makedirs(tmpDir)
if(PROC_SBET):
# The associated SBET file for this RXP
filename_sbet = sys.argv[2]
basename_sbet = os.path.basename(filename_sbet)
# '''
# Initialize processing pool
pool = mp.Pool(processes=PROC_CNT)
if pool is None:
raise Exception("Failed to initialize processing pool.")
print "\n#{}: Processing pool initialized with {} workers.".format(time.strftime('%X %x'), PROC_CNT)
print "\n#{}: Opening rxp file to split: {}".format(time.strftime('%X %x'), basename)
rxp = RXPFile()
rxp.open(filename)
# '''
print "\n#{}: Spliting rxp file {}".format(time.strftime('%X %x'), basename)
rxps_split = rxp.split_rxp(PROC_CNT*2, tmpDir)
rxp.close()
# '''
# Process the split rxps
results = None
if(PROC_SBET):
results = [pool.apply_async(extract_rxp, args=[rxps, tmpDir, filename_sbet]) for rxps in rxps_split]
else:
results = [pool.apply_async(extract_rxp, args=[rxps, tmpDir]) for rxps in rxps_split]
pool.close() # no more jobs for work pool
pool.join() # blocks here until all jobs finish processing