LineString

class LineString(Spatial):
    """
    Represents a line.

    Follows the GeoJSON specification (RFC 7946).

    Parameters
    ----------
    value : List[Tuple[float, float]], optional
        A linestring.

    Methods
    -------
    colorspace(c='rgb')
        Represent the photo in the given colorspace.
    gamma(n=1.0)
        Change the photo's gamma exposure.

    Examples
    --------
    Create a line.
    >>> LineString([(0,0), (0,1), (1,1)])
    """

    def __init__(self, value: typing.List[typing.Tuple[float, float]]):
        super().__init__(value=value)

    @classmethod
    def __validate__(cls, value: typing.Any):
        MultiPoint.__validate__(value)
        if len(value) < 2:
            raise ValueError(
                "At least two points are required to make a line."
            )

    @classmethod
    def decode_value(
        cls, value: typing.Optional[typing.List[typing.List[float]]]
    ):
        """Decode object from JSON compatible dictionary."""
        if value is None:
            return None
        return cls([(point[0], point[1]) for point in value])