Now, we'll parse the GPX file, which is just XML, using the built-in xml.dom.minidom module. We'll extract the latitude, longitude, elevation, and timestamps. We'll store them in a list for later use. The timestamps are converted to struct_time objects using Python's time module, which makes them easier to work with:
# Parse the gpx file and extract the coordinates
log.info("Parsing GPX file: {}".format(gpx))
xml = minidom.parse(gpx)
# Grab all of the "trkpt" elements
trkpts = xml.getElementsByTagName("trkpt")
# Latitude list
lats = []
# Longitude list
lons = []
# Elevation list
elvs = []
# GPX timestamp list
times = []
# Parse lat/long, elevation and times
for trkpt in trkpts:
# Latitude
lat = float(trkpt.attributes["lat"].value)
# Longitude
lon = float(trkpt.attributes["lon"].value)
lats.append(lat)
lons.append(lon)
# Elevation
elv = trkpt.childNodes[0].firstChild.nodeValue
elv = float(elv)
elvs.append(elv)
# Times
t = trkpt...