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# scipy.spatial.HalfspaceIntersection.add_halfspaces

HalfspaceIntersection.add_halfspaces(halfspaces, restart=False)

  Process a set of additional new halfspaces.

  Parameters:
    halfspaces ndarray

      New halfspaces to add. The dimensionality should match that of the initial halfspaces.

    restart bool, optional

      Whether to restart processing from scratch, rather than adding halfspaces incrementally.

  Raises:
    QhullError

      Raised when Qhull encounters an error condition, such as geometrical degeneracy when options to resolve are not enabled.

  See also

  `close`

  Notes

  You need to specify `incremental=True` when constructing the object to be able to add halfspaces incrementally. Incremental addition of halfspaces is also not possible after `close` has been called.