Kent and Alan: better?
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import zipfile
import os
import pylab as P
iFile = raw_input("Which file to process?")
def openarchive(filename):
""" open the cmet archive and read contents of file into memory """
z = zipfile.ZipFile(filename, "r")
for filename in z.namelist():
print filename
contents = z.read(filename)
data = contents.split('\n')
return data
def plotflight(data):
""" Plot flight data t vs. hPa with Pylab """
firstline = data[0].strip().split(' ')
stind = int(firstline[0])
hdrline = stind - 1
x = []
t = []
for l in data[stind:-1]:
l = l.split() # Split on whitespace
tval = float(l[0])
t.append(tval)
xval = float(l[24])
x.append(xval)
#Create scatter plot using pylab function
P.scatter(t,x)
P.xlabel('time (s) after 00 UTC')
P.ylabel('Altitude (hPa)')
P.title('Flight elevation vs. Time')
P.grid(True)
#print out figure
if os.path.exists("flight_track.png"):
os.remove("flight_track.png")
P.savefig('flight_track')
P.close()
flightdata = openarchive(iFile)
plotflight(flightdata)
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