def METHOD_NAME(self):
    # Create the quad objects, based on the vertex objects already created.
    for x in range(L-2):
        for y in range(L-2):
            v0 = self.get_vertex(x,y)
            v1 = self.get_vertex(x+1,y)
            v2 = self.get_vertex(x+1, y+1)
            v3 = self.get_vertex(x, y+1)
            quad(vs=[v0, v1, v2, v3])