Created
June 18, 2014 12:44
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Parse GPX file generated by Strava containing heartrate, cadence and temperature
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from xml.dom import minidom | |
import datetime | |
tracks = {} | |
def parseTrack(trk): | |
name = trk.getElementsByTagName('name')[0].firstChild.data | |
if not name in tracks: | |
tracks[name] = [] | |
for trkseg in trk.getElementsByTagName('trkseg'): | |
for trkpt in trkseg.getElementsByTagName('trkpt'): | |
lat = float(trkpt.getAttribute('lat')) | |
lon = float(trkpt.getAttribute('lon')) | |
ele = float(trkpt.getElementsByTagName('ele')[0].firstChild.data) | |
rfc3339 = trkpt.getElementsByTagName('time')[0].firstChild.data | |
try: | |
t = datetime.datetime.strptime(rfc3339, '%Y-%m-%dT%H:%M:%S.%fZ') | |
except ValueError: | |
t = datetime.datetime.strptime(rfc3339, '%Y-%m-%dT%H:%M:%SZ') | |
extensions = trkpt.getElementsByTagName('extensions')[0] | |
trkPtExtension = extensions.getElementsByTagName('gpxtpx:TrackPointExtension')[0] | |
if trkPtExtension: | |
hr = int(trkPtExtension.getElementsByTagName('gpxtpx:hr')[0].firstChild.data) | |
cad = int(trkPtExtension.getElementsByTagName('gpxtpx:cad')[0].firstChild.data) | |
if trkPtExtension.getElementsByTagName('gpxtpx:atemp'): | |
atemp = int(trkPtExtension.getElementsByTagName('gpxtpx:atemp')[0].firstChild.data) | |
tracks[name].append({'lat':lat, 'lon':lon, 'ele':ele, 'time':t, 'hr':hr, 'cad':cad, 'atemp':atemp}) | |
doc = minidom.parse('ride.gpx') | |
doc.normalize() | |
gpx = doc.documentElement | |
for node in gpx.getElementsByTagName('trk'): | |
parseTrack(node) | |
print tracks |
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