--- Purpose: Definition on the Left and the Right on the Fig.
class Graph;
- --- Purpose: Graph of exploration of the Bisecting Locus.
class Arc;
- --- Purpose: Arc of Graph.
-
+
class Node;
- --- Purpose: Node of Graph.
-
+
class BasicElt;
- --- Purpose: BasicElt of Graph.
-
+
class Zone;
- --- Purpose: Class Zone contains the frontiere of the Zone of proximity
- -- of a BasicElt.
class SequenceOfBasicElt instantiates Sequence from TCollection
(BasicElt from MAT);