def entry_to_feature(self, placemark_dom):
feature = Feature()
points = placemark_dom.getElementsByTagName("Point")
lines = placemark_dom.getElementsByTagName("LineString")
polys = placemark_dom.getElementsByTagName("Polygon")
if len(points):
coords = points[0].getElementsByTagName("coordinates")[0].firstChild.nodeValue.strip().split(",")
feature.geometry = {"type": "Point", "coordinates": [map(float, coords)]}
elif len(lines):
coordstring = lines[0].getElementsByTagName("coordinates")[0].firstChild.nodeValue.strip()
coords = coordstring.split(" ")
coords = map(lambda x: x.split(","), coords)
feature.geometry = {"type": "Line", "coordinates": coords}
elif len(polys):
rings = []
poly = polys[0]
outer = poly.getElementsByTagName("outerBoundaryIs")[0]
outer_coordstring = outer.getElementsByTagName("coordinates")[0].firstChild.nodeValue.strip()
outer_coords = outer_coordstring.split(" ")
outer_coords = map(lambda x: x.split(","), outer_coords)
rings.append(outer_coords)
inners = poly.getElementsByTagName("innerBoundaryIs")
for inner in inners:
inner_coords = inner.getElementsByTagName("coordinates")[0].firstChild.nodeValue.strip().split(" ")
inner_coords = map(lambda x: x.split(","), inner_coords)
rings.append(inner_coords)
feature.geometry = {"type": "Polygon", "coordinates": rings}
else:
raise Exception(
"KML parser only understands points and lines, and polys. You seem to be missing something."
)
nodeList = placemark_dom.childNodes
if len(placemark_dom.getElementsByTagName("Metadata")):
nodeList += placemark_dom.getElementsByTagName("Metadata")[0].childNodes
for node in nodeList:
try:
attr_name = node.tagName.split(":")[-1]
value = node.firstChild.nodeValue
if node.tagName not in ["Point", "LineString", "Polygon", "name", "Metadata"] and not value.startswith(
"Properties:"
):
feature.properties[attr_name] = value
except:
pass
try:
feature.properties["title"] = placemark_dom.getElementsByTagName("name")[0].firstChild.nodeValue
except:
pass
return feature
def entry_to_feature(self, entry_dom):
id = 1
try:
id = entry_dom.getElementsByTagName("id")[0].firstChild.nodeValue
except:
id = 1
feature = Feature(str(id))
geometry = self.extract_entry_geometry(entry_dom)
if not geometry: return None
feature.geometry = geometry
for node in entry_dom.childNodes:
try:
attr_name = node.tagName.split(":")[-1]
if attr_name not in ['point', 'line', 'polygon', 'id', 'where']:
try:
feature.properties[attr_name] = node.firstChild.nodeValue
except:
pass
except:
pass
feature.properties['timestamp'] = time.time()
return feature
def createFeature(self, feature_dict, id = None):
feature = Feature(id)
if feature_dict.has_key('geometry'):
feature.geometry = feature_dict['geometry']
if feature_dict.has_key('properties'):
feature.properties = feature_dict['properties']
return feature
def createFeature(self, feature_dict, id = None):
feature = Feature(id)
if feature_dict.has_key('geometry'):
feature.geometry = feature_dict['geometry']
if feature.geometry['type'] == "Point":
feature.geometry['coordinates'] = [feature.geometry['coordinates']]
if feature.geometry['type'] == "LineString":
feature.geometry['type'] = "Line"
if feature_dict.has_key('properties'):
feature.properties = feature_dict['properties']
return feature
def freeze_features (self, features):
result = []
for ogrfeat in features:
feat = Feature(ogrfeat.GetFID())
geom = ogrfeat.GetGeometryRef()
feat.geometry = OGR.freeze_geometry(geom)
for n, defn in enumerate(self.fields):
value = ogrfeat.GetField(n)
if isinstance(value, str): value = unicode(value, "utf-8")
feat.properties[defn.GetName()] = value
result.append(feat)
ogrfeat.Destroy()
return result