/**
 * A representation of a set of Degrees of Freedom (DOFs).
 * @class DOFSet
 */

/**
 * Creates a new DOFSet containing all the DOFs of this
 * DOFSet, plus all the DOFs of the set passed in. Duplicates
 * are included only once (union of the sets).
 * @method DOFSet#plus
 * @param {DOFSet|string} otherSet - Set to add: either the name of the set or the actual DOFSet.
 * @returns {DOFSet} Union of this and `otherSet`.
 */

/**
 * Creates a new DOFSet containing all the DOFs of this
 * DOFSet that are not present in `otherSet`.
 * @method DOFSet#minus
 * @param {DOFSet|string} otherSet - Set to subtract: either the name of the set or the actual DOFSet.
 * @returns {DOFSet} DOFSet containing DOFs of this set that are not in the argument set.
 */

/**
 * Get the DOFs from this set as an array of strings.
 * @method DOFSet#getDOFs
 * @returns {string[]}
 */

/**
 * Check if this DOFSet contains a particular DOF.
 * @method DOFSet#hasDOF
 * @param {string} dofName - DOF name to test for membership in this set.
 * @returns {boolean} `true` if this DOFSet has this dof.
 */

    /**
     * @interface DOFSets
     * @prop {DOFSet} ALL
     * @prop {DOFSet} BASE
     * @prop {DOFSet} BODY
     * @prop {DOFSet} EYE
     * @prop {DOFSet} LED
     * @prop {DOFSet} OVERLAY
     * @prop {DOFSet} SCREEN
     */