def distance_to_plane(self, plane):
"""Compute the distance to a plane.
Parameters
----------
plane : plane
The plane.
Returns
-------
float
The distance.
"""
return distance_point_plane(self, plane)
def is_point_on_plane(point, plane, tol=0.0):
"""Determine if a point lies in a plane.
Parameters
----------
point : sequence of float
XYZ coordinates.
plane : tuple
Base point and normal defining a plane.
tol : float, optional
A tolerance. Default is ``0.0``.
Returns
-------
bool
``True`` if the point is in on the plane.
``False`` otherwise.
"""
return distance_point_plane(point, plane) <= tol
