Ejemplo n.º 1
0
    def southwest_southeast_coords(self):
        #Starting from the master origin, compute the latitude, longitude pairs of 
        #evenly spaced (in km) cell vertices going due east.
        
        lat_due_east = \
            map(lambda x: (vdist(kilometers=self.deltaX*x).destination(self.set_master_origin(), MakeCityGrid.bearing_east)).latitude,\
                           self.eastward_sampling())
        lon_due_east = \
            map(lambda x: (vdist(kilometers=self.deltaX*x).destination(self.set_master_origin(), MakeCityGrid.bearing_east)).longitude,\
                           self.eastward_sampling())

        return zip(lat_due_east, lon_due_east)
Ejemplo n.º 2
0
    def northwest_northeast_coords(self, num):
        #Starting from an origin point, compute the latitude, longitude pairs of
        #evenly spaced (in km) cell vertices going due north.
        #The origin point is extracted from "set_tmp_origin" besed on the points
        #along the west-east line.

        lat_due_north = \
            map(lambda x: (vdist(kilometers=self.deltaY*x).destination(self.set_tmp_origin(num),MakeCityGrid.bearing_north)).latitude,\
                           self.northward_sampling())
        lon_due_north = \
            map(lambda x: (vdist(kilometers=self.deltaY*x).destination(self.set_tmp_origin(num),MakeCityGrid.bearing_north)).longitude,\
                           self.northward_sampling())

        return zip(lat_due_north, lon_due_north)