Mercurial > ~darius > hgwebdir.cgi > beermon

comparison logplot.py @ 8:cb03cea09bda

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Logfile plotter
author darius
date Sat, 29 Sep 2007 14:40:33 +0000
parents
children 87d9d862ecc4
comparison
equal deleted inserted replaced
7:51b22c1cfe2c 8:cb03cea09bda
1 #!/usr/bin/env python
2
3 import re, datetime, time, pylab, matplotlib
4 daterestr = '([0-9]{4}/[0-9]{2}/[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2}): '
5 targtre = re.compile(daterestr + 'target temperature - (-?[0-9]+\.[0-9]+)')
6 linere = re.compile(daterestr + '(-?[0-9]+\.[0-9]+)\s+(-?[0-9]+\.[0-9]+)\s+(-?[0-9]+\.[0-9]+)\s+([a-z-]+)\s+([a-z-]+)')
7 datefmt = '%Y/%m/%d %H:%M:%S'
8 tz = matplotlib.pytz.timezone('Australia/Adelaide')
9
10 targetTemp = 18.0
11 logfile = '/tmp/beermon.log'
12 start = time.mktime(time.strptime("2007/09/24 00:00:00", datefmt))
13 #end = time.mktime(time.strptime("2007/09/28 00:00:00", datefmt))
14 end = None
15
16 f = open(logfile)
17
18 times = []
19 fermTemps = []
20 fridgeTemps = []
21 ambTemps = []
22 states = []
23 targetTemps = []
24
25 for line in f:
26 m = linere.match(line)
27 if (m == None):
28 m = targtre.match(line)
29 if (m != None):
30 t = time.mktime(time.strptime(m.group(1), datefmt))
31 if (t < start or t > end):
32 continue
33
34 targetTemp = float(m.group(2))
35 continue
36 else:
37 continue
38
39 t = time.mktime(time.strptime(m.group(1), datefmt))
40 if (start != None and t < start):
41 continue
42
43 if (end != None and t > end):
44 continue
45
46 fermTemp = float(m.group(2))
47 fridgeTemp = float(m.group(3))
48 ambTemp = float(m.group(4))
49 state = m.group(5)
50
51 times.append(t / (24 * 60 * 60)) # Is in float days
52 fermTemps.append(fermTemp)
53 fridgeTemps.append(fridgeTemp)
54 ambTemps.append(ambTemp)
55 states.append(state)
56 targetTemps.append(targetTemp)
57
58 print "From %s to %s" % (time.asctime(time.localtime(times[0] * (24 * 60 * 60))),
59 time.asctime(time.localtime(times[-1] * (24 * 60 * 60))))
60 fig = pylab.figure()
61 ax = fig.add_subplot(111)
62 p = ax.plot(times, fermTemps, times, fridgeTemps, times, ambTemps, times, targetTemps)
63 ax.set_autoscale_on(True)
64 hoursFmt = pylab.DateFormatter('%d %b %H:%M', tz = tz)
65 ax.xaxis.set_major_formatter(hoursFmt)
66 labels = ax.get_xticklabels()
67 pylab.setp(labels, 'rotation', 5.0)
68 ax.grid(True)
69 ax.set_xlabel('time(UTC)')
70 ax.set_ylabel('Temperature(C)')
71 pylab.legend((p[0], p[1], p[2], p[3]), ('Fermenter', 'Fridge', 'Ambient', 'Target'), 'best')
72 #pylab.legend((p[0], p[1], p[2]), ('Fermenter', 'Fridge', 'Ambient'), 'best')
73 #pylab.axhline(y = targetTemp)
74 pylab.show()