def add_friend_links(fileName, g, edgetype):
from get_stats import haversine
#indices_to_remove = [ node.index for node in g.vs if node['latlng'] == None ]
#g.delete_vertices( indices_to_remove )
mySet = set(g.vs['name'])
friend_edges = []
with open(fileName) as f:
for line in f:
splitted = line.split('::', 2)
if splitted[0] in mySet and splitted[1] in mySet:
friend_edges.append( (splitted[0], splitted[1]) )
g.add_edges( friend_edges )
g.es['edgetype'] = [1] * len(friend_edges)
if edgetype == 1:
return
if edgetype == 3:
num_edges = 445602
spatial_edges = []
for i in range(num_edges):
v1 = random.randrange( len( g.vs ) )
v2 = random.randrange( len( g.vs ) )
spatial_edges.append( (v1,v2) )
g.add_edges( spatial_edges )
g.es['edgetype'] = [1] * len(friend_edges) + [2] * len(spatial_edges)
return
"""
spatial_edges = []
if edgetype == 2:
for e in g.es:
v1 = g.vs[e.source]
v2 = g.vs[e.target]
if v1['latlng'] != None and v2['latlng'] != None and haversine( v1['latlng'], v2['latlng'] ) < 21:
spatial_edges.append( (v1.index, v2.index) )
"""
spatial_edges = []
for v1 in g.vs:
for v2 in g.vs:
if v1 != v2 and v1['latlng'] != None and v2['latlng'] != None \
and haversine( v1['latlng'], v2['latlng'] ) < 5.0:
spatial_edges.append( (v1.index, v2.index) )
g.add_edges( spatial_edges )
g.es['edgetype'] = [1] * len(friend_edges) + [2] * len(spatial_edges)
#g.es['edgetype'] = [1] * len(friend_edges) + [2] * len(spatial_edges)
"""
def add_friend_links_OLD(fileName, g, edgetype):
from get_stats import haversine
edgesList = []
edgeTypes = []
mySet = set(g.vs['name'])
if edgetype == 1:
friend_edges = []
with open(fileName) as f:
for line in f:
splitted = line.split('::', 2)
if splitted[0] in mySet and splitted[1] in mySet:
friend_edges.append( (splitted[0], splitted[1]) )
g.add_edges( friend_edges )
return
with open(fileName) as f:
for line in f:
splitted = line.split('::', 2)
if splitted[0] in mySet and splitted[1] in mySet:
edgesList.append( (splitted[0], splitted[1]) )
v1 = g.vs.find(splitted[0])
v2 = g.vs.find(splitted[1])
if v1['latlng'] != None and v2['latlng'] != None and \
haversine( v1['latlng'], v2['latlng'] ) < 39.0:
edgeTypes.append(2)
elif v1['latlng'] != None and v2['latlng'] != None and \
haversine( v1['latlng'], v2['latlng'] ) < 140.0:
edgeTypes.append(3)
else:
edgeTypes.append(1)
g.add_edges(edgesList)
g.es['edgetype'] = edgeTypes