Node and Nodeset Repositioning

A capability to reposition nodesets and individual nodes is provided. This capability will retain all the current connectivity of the nodes involved, but it cannot guarantee that the new locations of the moved nodes do not form intersections with previously existing mesh or geometry. This capability is provided to allow the user maximum control over the mesh model being constructed, and by giving this control the user can possible create mesh that is self-intersecting. The user should be careful that the nodes being relocated will not form such intersections.

The user can reposition nodes appearing in the same nodeset using the NodeSet Move command. Moves can be specified using either a relative displacement or an absolute position. The command to reposition nodes in a nodeset is:

Nodeset <nodeset_list> Move <delta_x> <delta_y> <delta_z>

Nodeset <nodeset_list> Move To <x_pos> <y_pos> <z_pos>

The first form of the command specifies a relative movement of the nodes by the specified distances and the second form of the command specifies absolute movement to the specified position.

Individual nodes can be repositioned using the Node Move command. Moves are specified as relative displacements. The command syntax is:

Node <range> Move <delta_x> <delta_y> <delta_z>

Node <range> Move {[X <val>] [Y <val>] [Z <val>]}

Node <range> Move Normal to Surface <id> distance <val>

Node <range> Move Closest Surface <id> distance <val>

Nodes can also be repositioned using a location or direction specification. See Location, Direction, and Axis Specification for details on the location and direction specification. The command syntax is:

Node <range> Move Location <options>

Node <range> Move Direction <options>

If node constraint is set to on then nodes will snap to geometry that they are associated with after the move. This only happens with the node move command and not with nodeset move. This behavior can be turned off with

set node constraint off