def path(self, lat1, lng1, lat2, lng2, transfer_penalty=0, walking_speed=1.0, hill_reluctance=20, narrative=True, jsoncallback=None): t0 = time.time() origin = "osm-%s"%self.osmdb.nearest_node( lat1, lng1 )[0] dest = "osm-%s"%self.osmdb.nearest_node( lat2, lng2 )[0] endpoint_find_time = time.time()-t0 print origin, dest t0 = time.time() wo = WalkOptions() #wo.transfer_penalty=transfer_penalty #wo.walking_speed=walking_speed wo.walking_speed=4 wo.walking_overage = 0 wo.hill_reluctance = 20 wo.turn_penalty = 15 edgepayloads = self.ch.shortest_path( origin, dest, State(1,0), wo ) wo.destroy() route_find_time = time.time()-t0 t0 = time.time() names = [] geoms = [] profile = Profile() total_dist = 0 total_elev = 0 if narrative: names, total_dist = get_full_route_narrative( self.osmdb, edgepayloads ) for edgepayload in edgepayloads: geom, profile_seg = self.shortcut_cache.get( edgepayload.external_id ) #geom = get_ep_geom( self.osmdb, edgepayload ) #profile_seg = get_ep_profile( self.profiledb, edgepayload ) geoms.extend( geom ) profile.add( profile_seg ) route_desc_time = time.time()-t0 ret = json.dumps( (names, encode_pairs( [(lat, lon) for lon, lat in geoms] ), profile.concat(300), { 'route_find_time':route_find_time, 'route_desc_time':route_desc_time, 'endpoint_find_time':endpoint_find_time,}, { 'total_dist':total_dist, 'total_elev':total_elev}) ) if jsoncallback: return "%s(%s)"%(jsoncallback,ret) else: return ret
def path(self, origin, dest, currtime=None, time_offset=None, transfer_penalty=0, walking_speed=1.0, hill_reluctance=1.5, turn_penalty=None, walking_reluctance=None, max_walk=None, jsoncallback=None): performance = {} if currtime is None: currtime = int(time.time()) if time_offset is not None: currtime += time_offset # time path query t0 = time.time() wo = WalkOptions() wo.transfer_penalty = transfer_penalty wo.walking_speed = walking_speed wo.hill_reluctance = hill_reluctance if turn_penalty is not None: wo.turn_penalty = turn_penalty if walking_reluctance is not None: wo.walking_reluctance = walking_reluctance if max_walk is not None: wo.max_walk = max_walk spt = self.graph.shortest_path_tree(origin, dest, State(1, currtime), wo) vertices, edges = spt.path(dest) performance['path_query_time'] = time.time() - t0 t0 = time.time() narrative = list( postprocess_path(vertices, edges, self.vertex_events, self.edge_events)) performance['narrative_postprocess_time'] = time.time() - t0 t0 = time.time() wo.destroy() spt.destroy() performance['cleanup_time'] = time.time() - t0 ret = {'narrative': narrative, 'performance': performance} if jsoncallback is None: return json.dumps(ret, indent=2, cls=SelfEncoderHelper) else: return "%s(%s)" % ( jsoncallback, json.dumps(ret, indent=2, cls=SelfEncoderHelper))
def path(self, origin, dest, currtime=None, time_offset=None, transfer_penalty=0, walking_speed=1.0, hill_reluctance=1.5, turn_penalty=None, walking_reluctance=None, max_walk=None, jsoncallback=None): performance = {} if currtime is None: currtime = int(time.time()) if time_offset is not None: currtime += time_offset # time path query t0 = time.time() wo = WalkOptions() wo.transfer_penalty=transfer_penalty wo.walking_speed=walking_speed wo.hill_reluctance=hill_reluctance if turn_penalty is not None: wo.turn_penalty = turn_penalty if walking_reluctance is not None: wo.walking_reluctance = walking_reluctance if max_walk is not None: wo.max_walk = max_walk spt = self.graph.shortest_path_tree( origin, dest, State(1,currtime), wo ) vertices, edges = spt.path( dest ) performance['path_query_time'] = time.time()-t0 t0 = time.time() narrative = list(postprocess_path(vertices, edges, self.vertex_events, self.edge_events)) performance['narrative_postprocess_time'] = time.time()-t0 t0 = time.time() wo.destroy() spt.destroy() performance['cleanup_time'] = time.time()-t0 ret = {'narrative':narrative, 'performance':performance} if jsoncallback is None: return json.dumps(ret, indent=2, cls=SelfEncoderHelper) else: return "%s(%s)"%(jsoncallback,json.dumps(ret, indent=2, cls=SelfEncoderHelper))
def make_native_ch(basename): gdb = GraphDatabase(basename + ".gdb") gg = gdb.incarnate() wo = WalkOptions() wo.hill_reluctance = 20 wo.walking_speed = 4 wo.walking_overage = 0 wo.turn_penalty = 15 ch = gg.get_contraction_hierarchies(wo) chdowndb = GraphDatabase(basename + ".down.gdb", overwrite=True) chdowndb.populate(ch.downgraph, reporter=sys.stdout) chupdb = GraphDatabase(basename + ".up.gdb", overwrite=True) chupdb.populate(ch.upgraph, reporter=sys.stdout)
def make_native_ch(basename): gdb = GraphDatabase( basename+".gdb" ) gg = gdb.incarnate() wo = WalkOptions() wo.hill_reluctance=20 wo.walking_speed=4 wo.walking_overage = 0 wo.turn_penalty = 15 ch = gg.get_contraction_hierarchies( wo ) chdowndb = GraphDatabase( basename+".down.gdb", overwrite=True ) chdowndb.populate( ch.downgraph, reporter=sys.stdout ) chupdb = GraphDatabase( basename+".up.gdb", overwrite=True ) chupdb.populate( ch.upgraph, reporter=sys.stdout )
def path(self, origin, dest, currtime=None, time_offset=None, transfer_penalty=0, walking_speed=1.0, hill_reluctance=1.5, turn_penalty=None, walking_reluctance=None, max_walk=None, jsoncallback=None): performance = {} if currtime is None: currtime = int(time.time()) if time_offset is not None: currtime += time_offset # time path query t0 = time.time() wo = WalkOptions() wo.transfer_penalty=transfer_penalty wo.walking_speed=walking_speed wo.hill_reluctance=hill_reluctance if turn_penalty is not None: wo.turn_penalty = turn_penalty if walking_reluctance is not None: wo.walking_reluctance = walking_reluctance if max_walk is not None: wo.max_walk = max_walk spt = self.graph.shortest_path_tree( origin, dest, State(1,currtime), wo, maxtime=4000000000, hoplimit=2000000, weightlimit=4000000000 ) try: vertices, edges = spt.path( dest ) except Exception, e: return json.dumps( {'error':str(e)} )
def path(self, origin, dest, currtime=None, time_offset=None, transfer_penalty=0, walking_speed=1.0, hill_reluctance=1.5, turn_penalty=None, walking_reluctance=None, max_walk=None, jsoncallback=None): performance = {} if currtime is None: currtime = int(time.time()) if time_offset is not None: currtime += time_offset # time path query t0 = time.time() wo = WalkOptions() wo.transfer_penalty=transfer_penalty wo.walking_speed=walking_speed wo.hill_reluctance=hill_reluctance if turn_penalty is not None: wo.turn_penalty = turn_penalty if walking_reluctance is not None: wo.walking_reluctance = walking_reluctance if max_walk is not None: wo.max_walk = max_walk spt = self.graph.shortest_path_tree( origin, dest, State(1,currtime), wo ) try: vertices, edges = spt.path( dest ) except Exception, e: return json.dumps( {'error':str(e)} )
def path(self, lat1, lng1, lat2, lng2, transfer_penalty=0, walking_speed=1.0, hill_reluctance=20, narrative=True, jsoncallback=None): t0 = time.time() origin = "osm-%s" % self.osmdb.nearest_node(lat1, lng1)[0] dest = "osm-%s" % self.osmdb.nearest_node(lat2, lng2)[0] endpoint_find_time = time.time() - t0 print origin, dest t0 = time.time() wo = WalkOptions() #wo.transfer_penalty=transfer_penalty #wo.walking_speed=walking_speed wo.walking_speed = 4 wo.walking_overage = 0 wo.hill_reluctance = 20 wo.turn_penalty = 15 edgepayloads = self.ch.shortest_path(origin, dest, State(1, 0), wo) wo.destroy() route_find_time = time.time() - t0 t0 = time.time() names = [] geoms = [] profile = Profile() total_dist = 0 total_elev = 0 if narrative: names, total_dist = get_full_route_narrative( self.osmdb, edgepayloads) for edgepayload in edgepayloads: geom, profile_seg = self.shortcut_cache.get( edgepayload.external_id) #geom = get_ep_geom( self.osmdb, edgepayload ) #profile_seg = get_ep_profile( self.profiledb, edgepayload ) geoms.extend(geom) profile.add(profile_seg) route_desc_time = time.time() - t0 ret = json.dumps( (names, encode_pairs([(lat, lon) for lon, lat in geoms]), profile.concat(300), { 'route_find_time': route_find_time, 'route_desc_time': route_desc_time, 'endpoint_find_time': endpoint_find_time, }, { 'total_dist': total_dist, 'total_elev': total_elev })) if jsoncallback: return "%s(%s)" % (jsoncallback, ret) else: return ret