def carryMileageRate( roadmap, rategraph, length_attr='length', rate_attr='rate' ) :
V = {}
for road1, road2, data in rategraph.edges_iter( data=True ) :
curr_rate = data.get( rate_attr )
if curr_rate is None : continue
curr_v = curr_rate * road_Ed.roadEd_conditional( roadmap, road1, road2, length_attr )
V[ (road1,road2) ] = curr_v
return sum( V.values() )
def demand_enroute_velocity( roadnet, rategraph, length='length', rate='rate' ) :
"""
TODO: implement node <-> object checking
"""
V = {}
for road1, road2, data in rategraph.edges_iter( data=True ) :
curr_rate = data.get( rate )
if curr_rate is None : continue
curr_v = curr_rate * road_Ed.roadEd_conditional( roadnet, road1, road2, length )
V[ (road1,road2) ] = curr_v
return sum( V.values() )
