def buildgraph():
graph = picklegraph.load()
i = 0
for record in bi_sh.iterRecords():
fnode = record[fnode_index]
tnode = record[tnode_index]
cp_type = record[cp_type_index]
if cp_type == None or len(cp_type) == 0 or cp_type[0] == 0x20:
continue
if fnode in graph and tnode in graph[fnode]:
i += 1
graph[fnode][tnode]["length"] *= BIKE_FRIENDLY_SCALE_FACTOR
print("changed", i, "lengths")
return graph
def buildgraph():
graph = picklegraph.load()
i = 0
for record in bi_sh.iterRecords():
fnode = record[fnode_index]
tnode = record[tnode_index]
cp_type = record[cp_type_index]
if cp_type == None or len(cp_type) == 0 or cp_type[0] == 0x20:
continue
if fnode in graph and tnode in graph[fnode]:
i += 1
graph[fnode][tnode]["length"] *= BIKE_FRIENDLY_SCALE_FACTOR
print("changed", i, "lengths")
return graph
import route
import math
import picklegraph
import picklegraph_bike
from queryaddress import address_to_inter, get_dir_helper
from flask import Flask, request, jsonify
# backend to webapp that returns direction JSON object as defined in doc/backend_api
app = Flask(__name__)
app.debug = True
app.config.from_object(__name__)
# load serialized graph quickly (takes less than a second from previous time of 37 seconds)
centerline_graph = picklegraph.load()
bikelane_graph = picklegraph_bike.load()
# intersection record indices
name_index = 2
def get_dir(g, start_inter, end_inter):
"""Return direction of path segment when given adjacent starting and ending intersections."""
# compare the difference in longitude and latitude
start_lon = g.node[start_inter]['lon']
start_lat = g.node[start_inter]['lat']
end_lon = g.node[end_inter]['lon']
end_lat = g.node[end_inter]['lat']
dlat = end_lat - start_lat
dlon = end_lon - start_lon
return get_dir_helper(dlat, dlon)
import pickleaddress import picklegraph import picklestreet import util addresses = pickleaddress.load() gr = picklegraph.load() streets = picklestreet.load() def get_dir_helper(dlat, dlon): if abs(dlat) > abs(dlon): # more difference along latitude, either N or S if dlat > 0: return "North" else: return "South" else: if dlon > 0: return "East" else: return "West" LEFT = "L" RIGHT = "R" def flip(a): if a == LEFT: return RIGHT return LEFT def getaddress(name): """ returns: inter, dist, side, longitude, latitude
import route import math import picklegraph import picklegraph_bike from queryaddress import address_to_inter, get_dir_helper from flask import Flask, request, jsonify # backend to webapp that returns direction JSON object as defined in doc/backend_api app = Flask(__name__) app.debug = True app.config.from_object(__name__) # load serialized graph quickly (takes less than a second from previous time of 37 seconds) centerline_graph = picklegraph.load() bikelane_graph = picklegraph_bike.load() # intersection record indices name_index = 2 def get_dir(g, start_inter, end_inter): """Return direction of path segment when given adjacent starting and ending intersections.""" # compare the difference in longitude and latitude start_lon = g.node[start_inter]['lon'] start_lat = g.node[start_inter]['lat'] end_lon = g.node[end_inter]['lon'] end_lat = g.node[end_inter]['lat'] dlat = end_lat - start_lat dlon = end_lon - start_lon return get_dir_helper(dlat,dlon) # used as turn[in_dir][out_dir] to see which direction to turn