class GpxParser(object):
"""
Parse Gpx-Files
"""
def __init__(self):
""" create a new instance """
self._track = None
def parse(self, filename):
"""
Parse a file and set track property
filename - the filename
"""
dom = parse(filename)
self._track = Track()
for node in dom.getElementsByTagName('trkpt'):
self._track.append(
GpsPoint(node.attributes['lat'].nodeValue,
node.attributes['lon'].nodeValue))
for cnode in node.childNodes:
if cnode.localName == 'ele':
self._track[-1].elevation = self._get_text(cnode.childNodes)
elif cnode.localName == 'time':
self._track[-1].time = datetime.strptime(
self._get_text(cnode.childNodes), TIME_PATTERN)
@staticmethod
def _get_text(nodelist):
""" get all text from the nodes in nodelist """
text = ''
for node in nodelist:
if node.nodeType == node.TEXT_NODE:
text += node.data
return text
@property
def track(self):
""" get the parsed gps track """
return self._track
@property
def extension(self):
""" get the extensions (e.g. .gpx) """
return '.gpx'
def parse(self, filename):
"""
Parse a file and set track property
filename - the filename
"""
dom = parse(filename)
self._track = Track()
for node in dom.getElementsByTagName('trkpt'):
self._track.append(
GpsPoint(node.attributes['lat'].nodeValue,
node.attributes['lon'].nodeValue))
for cnode in node.childNodes:
if cnode.localName == 'ele':
self._track[-1].elevation = self._get_text(cnode.childNodes)
elif cnode.localName == 'time':
self._track[-1].time = datetime.strptime(
self._get_text(cnode.childNodes), TIME_PATTERN)