pstlab / PLATINUm

	/**

	 * 

	 */

	@Override

	public List<TimePointDistanceConstraint> getConstraintToHorizon(TimePoint point) {

		// prepare list of constraints

		Set<TimePointDistanceConstraint> set = new HashSet<>();

		// check contingencies

		if (this.contingents.containsKey(point) && this.contingents.get(point).containsKey(this.tpHorizion)) {

			// add contingent constraint

			set.add(this.contingents.get(point).get(this.tpHorizion));

		} else if (this.requirements.containsKey(point) && this.requirements.get(point).containsKey(this.tpHorizion)) {

			// add all requirement constraints

			set.addAll(this.requirements.get(point).get(this.tpHorizion));

		} else {

			// no constraints

		}

		// get list of constraints

		return new ArrayList<>(set);

	}

	/**

	 * Note that only requirement constraints can be specified between the origin

	 * and a time point.

	 */

	@Override

	public List<TimePointDistanceConstraint> getConstraintFromOrigin(TimePoint point) {

		// prepare list of constraints

		Set<TimePointDistanceConstraint> set = new HashSet<>();

		// check contingencies

		if (this.contingents.containsKey(this.tpOrigin) && this.contingents.get(this.tpOrigin).containsKey(point)) {

			// add contingent constraint

			set.add(this.contingents.get(this.tpOrigin).get(point));

		} else if (this.requirements.containsKey(this.tpOrigin) && this.requirements.get(this.tpOrigin).containsKey(point)) {

			// add all requirement constraints

			set.addAll(this.requirements.get(this.tpOrigin).get(point));

		} else {

			// no constraints

		}

		// get list of constraints

		return new ArrayList<>(set);

	}

	/**