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in_kml.py
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in_kml.py
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import datetime
import xml.sax
import xml.sax.handler
import utils
class KmlHandler(xml.sax.handler.ContentHandler):
def __init__(self, transportation):
self.transportation = transportation
self.xml_path = []
self.point = None
self.path = None
self.paths = []
def startElement(self, name, attrs):
self.xml_path.append(name)
if name in ['LineString', 'LinearRing']:
self.path = {'transportation': self.transportation, 'points': []}
def characters(self, content):
tail = self.xml_path[-2:]
content = content.strip()
if not content:
return
if tail == ['LineString', 'coordinates'] or tail == ['LinearRing', 'coordinates']:
self.path['points'] = [utils.Point(lat, lng, ele, None, None) for lng, lat, ele in [map(float, p.split(",")) for p in content.strip().split(" ")]]
def endElement(self, name):
self.xml_path.pop()
if name in ['LineString', 'LinearRing']:
self.paths.append(self.path)
self.path = None
def parse(fileobj, transportation=None):
handler = KmlHandler(transportation)
xml.sax.parse(fileobj, handler)
return handler.paths