Figure 1 Node dialog box
•Create Method
•Point: Defines the special location directly where the node was created.
•2-Nodes: Defines the node position with two different points. If you define these two points in a window, a new node will be created in the center of these two points.
•3-Nodes: Defines the node position with three different points. (There exists a unique circle that passes the three points.) If you define these three points, a new node will be created in the center of the circle that passes the three points.
•Node ID: Defines a node ID to the node.
•Position: Defines positions to specify the node.