"""
Functions for computation of centroids.
"""
+from typing import Tuple, Any
from collections.abc import Collection
class PointsCentroid:
(i.e. in OSM style).
"""
- def __init__(self):
+ def __init__(self) -> None:
self.sum_x = 0
self.sum_y = 0
self.count = 0
- def centroid(self):
+ def centroid(self) -> Tuple[float, float]:
""" Return the centroid of all points collected so far.
"""
if self.count == 0:
float(self.sum_y/self.count)/10000000)
- def __len__(self):
+ def __len__(self) -> int:
return self.count
- def __iadd__(self, other):
+ def __iadd__(self, other: Any) -> 'PointsCentroid':
if isinstance(other, Collection) and len(other) == 2:
if all(isinstance(p, (float, int)) for p in other):
x, y = other