def zone_to_feature(zone, keys):
'''Serialize a zone into a GeoJSON feature'''
properties = {
'level': zone['level'],
'code': zone['code'],
'name': unicodify(zone['name']),
'wikipedia': unicodify(zone.get('wikipedia', '')) or None,
'dbpedia': unicodify(zone.get('dbpedia', '')) or None,
'population': int(zone.get('population', 0)),
'area': int(zone.get('area', 0)),
'flag': unicodify(zone.get('flag', '')) or None,
'blazon': unicodify(zone.get('blazon', '')) or None,
'keys': zone.get('keys', {}),
'parents': zone.get('parents', [])
}
if keys is not None:
for unwanted_key in set(properties.keys()) - set(keys):
del properties[unwanted_key]
feature = {
'id': zone['_id'],
'type': 'Feature',
'geometry': zone['geom'],
'properties': properties
}
if keys is not None and 'geometry' not in keys:
del feature['geometry']
return feature
def extract_french_arrondissements(polygon):
'''
Extract a french arrondissements informations from a MultiPolygon.
Based on data from http://www.data.gouv.fr/datasets/decoupage-administratif-communal-francais-issu-d-openstreetmap/
'''
props = polygon['properties']
code = props['insee'].lower()
return {
'code': code,
'name': unicodify(props['nom']),
'wikipedia': unicodify(props['wikipedia']),
'area': int(props['surf_ha']),
'parents': ['country/fr', 'country-group/ue', 'country-group/world'],
'keys': {
'insee': code,
}
}
def extract_french_county(polygon):
'''
Extract a french county informations from a MultiPolygon.
Based on data from http://www.data.gouv.fr/datasets/contours-des-departements-francais-issus-d-openstreetmap/
'''
props = polygon['properties']
name = props['nom']
code = props['code_insee'].lower()
return {
'code': code,
'name': unicodify(name),
'wikipedia': unicodify(props['wikipedia']),
'parents': ['country/fr', 'country-group/ue', 'country-group/world'],
'keys': {
'insee': code,
'nuts3': props['nuts3'],
}
}
def extract_french_region(polygon):
'''
Extract a french region informations from a MultiPolygon.
Based on data from http://www.data.gouv.fr/datasets/contours-des-regions-francaises-sur-openstreetmap/
'''
props = polygon['properties']
code = props['code_insee'].lower()
return {
'code': code,
'name': unicodify(props['nom']),
'area': props['surf_km2'],
'wikipedia': unicodify(props['wikipedia']),
'parents': ['country/fr', 'country-group/ue', 'country-group/world'],
'keys': {
'insee': code,
'nuts2': props['nuts2'],
'iso3166_2': props['iso3166_2'],
}
}
def extract_french_epci(polygon):
'''
Extract a french EPCI informations from a MultiPolygon.
Based on data from http://www.data.gouv.fr/datasets/contours-des-epci-2014/
'''
props = polygon['properties']
siren = props['siren_epci'].lower()
return {
'code': siren,
'name': unicodify(props.get('nom_osm') or props['nom_epci']),
'population': props['ptot_epci'],
'area': props['surf_km2'],
'wikipedia': unicodify(props['wikipedia']),
'parents': ['country/fr', 'country-group/ue', 'country-group/world'],
'keys': {
'siren': siren,
'osm': props['osm_id'],
'type_epci': props['type_epci']
}
}
def extract_french_canton(polygon):
'''
Extract a french canton informations from a MultiPolygon.
Based on data from http://www.data.gouv.fr/fr/datasets/contours-osm-des-cantons-electoraux-departementaux-2015/
'''
props = polygon['properties']
code = props['ref'].lower()
county_code = props['dep'].lower()
county_id = 'fr/county/{0}'.format(county_code)
return {
'code': code,
'name': unicodify(props['nom']),
'population': props['population'],
'wikipedia': unicodify(props['wikipedia']),
'parents': ['country/fr', 'country-group/ue', 'country-group/world', county_id],
'keys': {
'ref': code,
'jorf': props['jorf']
}
}
def zone_to_feature(zone):
'''Serialize a zone into a GeoJSON feature'''
return {
'id': zone['_id'],
'type': 'Feature',
'geometry': zone['geom'],
'properties': {
'level': zone['level'],
'code': zone['code'],
'name': unicodify(zone['name']),
'wikipedia': unicodify(zone.get('wikipedia', '')) or None,
'dbpedia': unicodify(zone.get('dbpedia', '')) or None,
'population': zone.get('population', None),
'area': zone.get('area', None),
'flag': unicodify(zone.get('flag', '')) or None,
'blazon': unicodify(zone.get('blazon', '')) or None,
'keys': zone.get('keys', {}),
'parents': zone.get('parents', [])
}
}
def extract_iris(polygon):
'''
Extract French IrisBased on data from http://professionnels.ign.fr/contoursiris
'''
props = polygon['properties']
code = props['DCOMIRIS']
town_code = props['DEPCOM'].lower()
town_id = 'fr/town/{0}'.format(town_code)
name = unicodify(props['NOM_IRIS']).title()
return {
'code': code,
'name': name,
'parents': ['country/fr', 'country-group/ue', 'country-group/world', town_id],
'_type': props['TYP_IRIS'],
'keys': {
'iris': code
},
}
def extract_overseas_county(polygon):
'''
Extract overseas county from their WorldBorder country.
Based on data from http://thematicmapping.org/downloads/world_borders.php
'''
props = polygon['properties']
iso = props['ISO2'].lower()
if iso in OVERSEAS:
code, name = OVERSEAS[iso]
return {
'code': code,
'name': unicodify(name),
'population': props['POP2005'],
'area': int(props['AREA']),
'parents': ['country/fr', 'country-group/ue', 'country-group/world'],
'keys': {
'insee': code,
'iso2': iso,
'iso3': props['ISO3'].lower(),
'un': props['UN'],
}
}
