2011

A topology must have a node at the end points of all link objects. This node
is part of the topology data structure and is assigned a topology ID. However,
a node can be implicit (referenced in the topology data structure) or explicit
(a physical object in the drawing). Use the
MAPNODADD (Add Topology Node
command)
(page 1944) or MAPNODINS (Insert Topology Node command) (page
1947) command to create a new node.
When you add a link to a topology, AutoCAD Map 3D creates a node when
necessary. If the link joins two existing nodes, no new nodes are created.
Remember these features of nodes and links:
■ A node can reference many links.
■ A link can reference only two nodes.
■ Only one node can exist at a specific point.
If the new link splits an existing area in a polygon topology into two areas,
AutoCAD Map 3D creates a new centroid and updates the existing centroid.
MAPLINKDEL (Delete Topology Link command)
NOTE This functionality applies only to drawing objects.
WARNING This command will not be supported in future releases. This is the
old command for deleting a link in a network topology. The new command is
MAPDL.
Use this command to delete a link from an existing network or polygon
topology while maintaining the integrity of the topology information.
To delete a link, node, or polygon (page 889)
MAPDL
Respond to the prompts:
Enter topology name (? for list) <toponame>:
Enter the name of the topology to delete the link from. To display a list of
all loaded topologies, enter ?.
1942 | Chapter 38 Topology Dialog Boxes