Method key

cadquery/selectors.py:324–330

Return the key for ordering. Can raise a ValueError if obj can not be used to create a key, which will result in obj being dropped by the clustering method.

(self, obj: Shape)

    @abstractmethod
    def key(self, obj: Shape) -> float:
        """
        Return the key for ordering. Can raise a ValueError if obj can not be
        used to create a key, which will result in obj being dropped by the
        clustering method.
        """
        raise NotImplementedError

    def cluster(self, objectlist: Sequence[Shape]) -> List[List[Shape]]:
        """