Class Triangle

src/main/java/field/utility/SimpleVoronoi.java:811–952

	}

	static public class Triangle extends ArraySet<Pnt> {

		private int idNumber; // The id number
		private Pnt circumcenter = null; // The triangle's circumcenter

		private static int idGenerator = 0; // Used to create id numbers
		public static boolean moreInfo = false; // True iff more info in

		// toString

		/**
		 * @param vertices
		 *                the vertices of the Triangle.
		 * @throws IllegalArgumentException
		 *                 if there are not three distinct vertices
		 */
		public Triangle(Pnt... vertices) {
			this(Arrays.asList(vertices));
		}

		/**
		 * @param collection
		 *                a Collection holding the Simplex vertices
		 * @throws IllegalArgumentException
		 *                 if there are not three distinct vertices
		 */
		public Triangle(Collection<? extends Pnt> collection) {
			super(collection);
			idNumber = idGenerator++;
			if (this.size() != 3)
				throw new IllegalArgumentException("Triangle must have 3 vertices");
		}

		@Override
		public String toString() {
			if (!moreInfo)
				return "Triangle" + idNumber;
			return "Triangle" + idNumber + super.toString();
		}

		/**
		 * Get arbitrary vertex of this triangle, but not any of the bad
		 * vertices.
		 *
		 * @param badVertices
		 *                one or more bad vertices
		 * @return a vertex of this triangle, but not one of the bad
		 *         vertices
		 * @throws NoSuchElementException
		 *                 if no vertex found
		 */
		public Pnt getVertexButNot(Pnt... badVertices) {
			Collection<Pnt> bad = Arrays.asList(badVertices);
			for (Pnt v : this)
				if (!bad.contains(v))
					return v;
			throw new NoSuchElementException("No vertex found");
		}