class RouteGridGenerator(GridGenerator):
"""
Generate a grid a cross the region area geography object
and calculate the routes to the given train stop (to_point) for each
grid point.
Inputs:
region - (required) the bounding region for the grid
grid - (required) the empty new RouteGrid object
to_point - (required) train stop id where all the grid point should search to
max_distance - (default 1500) the max search radius around each search point in which
to search for a nearby start train stop.
num_routes - (default 2) will perform a route calculation for the closest num_routes
to a given grid point.
"""
def __init__(self, to_point, *args, **kwargs):
self.to_point = to_point
tn = load_transitnetwork()
self.t = RoutePlanner(tn, max_distance=kwargs.get('max_distance', 1500),
num_routes=kwargs.get('num_routes', 2))
super(RouteGridGenerator, self).__init__(*args, **kwargs)
@property
def grid_point_class(self):
return RouteGridPoint
def work(self, new_point):
from_point = new_point.point
p = self.t.fastest_route_from_point(from_point, self.to_point)
new_point.routes += p
def __init__(self, to_point, *args, **kwargs):
self.to_point = to_point
tn = load_transitnetwork()
self.t = RoutePlanner(tn, max_distance=kwargs.get('max_distance', 1500),
num_routes=kwargs.get('num_routes', 2))
super(RouteGridGenerator, self).__init__(*args, **kwargs)
