def populatepolygon(latlong_dict):
"""build a travelpolygon given a list of dicts containing the keys 'longitude' and 'latitude'
latlong_dict -- list of dicts
"""
polygon = TravelPolygon()
polygon.populate(latlong_dict)
return polygon
def buildpolygon(latitude, longitude, max_minutes, precision=50):
"""estimate a polygon such that every point within the polygon is within
max_minutes of the specified center (lat, long). precision defines the number
of vertices to build the polygon
latitude, longitude -- self explanatory
max_minutes -- max travel time from the specified lat long
precision[optional] -- number of points used to estimate the polygon
returns: list of dicts containing final lat, long. order of points matter
"""
polygon = TravelPolygon()
polygon.build(latitude, longitude, max_minutes, precision)
polygon.fit()
return polygon
