Deleting the nodes

Nodes, similarly to other entities, may be deleted if they are no longer necessary. On the other hand, one must be aware that there are some conditions that must be met so that the program can perform the deletion of node.

First, it is not possible to delete a node that relates to any entity. For example, it is not possible to delete the end-point (i.e. node) of an existing 1D member. If this should really be done, the relating entity must be deleted together with the node or nodes. Therefore, it is possible to delete a 1D member and two nodes that are the 1D member end-points.

Second, if it happens and some nodes are free nodes (i.e. do not relate to any entity), it is possible to remove such nodes.

Deletion of proper nodes (nodes that relate to 1D members)

Procedure for deletion of nodes

  1. Select the nodes that are supposed to be deleted.

  2. Select also the entities that the selected nodes relate to.

  3. Call function Delete:

    1. either: open menu function Modify > Delete,

    2. or: use window pop-up menu function Delete,

    3. or: press key Del.

  4. Confirm the question box (or question boxes).

Deletion of free nodes

Free nodes (if they occur in a project) can be deleted either manually or automatically

Procedure for manual removal of free nodes

  1. Select any free nodes that should be deleted.

  2. Call function Delete:

    1. either: start menu function Modify > Delete,

    2. or: start window pop-up menu function Delete,

    3. or: press key Del.

  3. Confirm the question box (or question boxes).

Procedure for automatic removal of free nodes

  1. Start function Check structure data.

    1. either: use menu function Tree > Calculation, Mesh > Check structure data,

    2. or: start tree menu function Calculation, Mesh > Check structure data.

  2. Make sure that option Search free nodes is ticked.

  3. Press button [Check].

  4. Check the upper right part of the dialogue and verify whether any free nodes have been discovered.

  5. If so, make sure that option Delete free nodes is selected.

  6. Press button [Continue] to delete the revealed free nodes.

Tip: For more information about function Check structure data see chapter Calculation > Check of data.

If the user is not sure whether there are any free nodes in his/her project, it is always possible to use the second approach because it means that the program automatically finds any free nodes in the project and informs the user about the findings. The user then may decide whether the discovered free nodes should be deleted or kept.