organicmaps/osm_conflate
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Check that an object is a node or an area

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This commit is contained in:
Ilya Zverev 2017-02-16 17:44:27 +03:00
parent f11ff777da
commit 7ffa9222a0
1 changed files with 13 additions and 3 deletions
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16
conflate.py
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@ -15,7 +15,6 @@ except ImportError:
OVERPASS_SERVER = 'http://overpass-api.de/api/'
BBOX_PADDING = 0.1 # in degrees
MAX_DISTANCE = 0.001 # how far can object be to be considered a match. 0.001 dg is ~110 m
DELETED_FIXME = 'This object is most likely obsolete. Please check'
class SourcePoint:
@ -60,6 +59,15 @@ class OSMPoint(SourcePoint):
def is_area(self):
return self.osm_type != 'node'
def is_poi(self):
if self.osm_type == 'node':
return True
if self.osm_type == 'way' and len(self.members) > 2:
return self.members[0] == self.members[-1]
if self.osm_type == 'relation' and len(self.members) > 0:
return self.tags.get('type', None) == 'multipolygon'
return False
def to_xml(self):
"""Produces an XML out of the point data. Disregards the "action" field."""
el = etree.Element(self.osm_type, id=str(self.osm_id), version=str(self.version))
@ -235,7 +243,8 @@ class OsmConflator:
pt.members = el['nodes']
elif 'members' in el:
pt.members = [(x['type'], x['ref'], x['role']) for x in el['members']]
self.osmdata[pt.id] = pt
if pt.is_poi():
self.osmdata[pt.id] = pt
def parse_osm(self, fileobj):
"""Parses an OSM XML file into the "osmdata" field. For ways and relations,
@ -285,7 +294,8 @@ class OsmConflator:
members = [(m.get('type'), m.get('ref'), m.get('role')) for m in el.findall('member')]
pt = OSMPoint(el.tag, el.get('id'), el.get('version'), coord[0], coord[1], tags)
pt.members = members
self.osmdata[pt.id] = pt
if pt.is_poi():
self.osmdata[pt.id] = pt
def register_match(self, dataset_key, osmdata_key, keep=False, retag=None):
"""Registers a match between an OSM point and a dataset point.