Deleting Mesh Elements hammer

Element deletion for owned geometry is no longer available unless the developer flag is turned on. Element deletion is still available without the developer flag for free meshes. The command to enable or disable features under development is:

Set Developer Commands {On|OFF}

The following forms of the delete commands operate on meshed entities only. They allow low-level editing of meshes to make minor corrections to a mostly correct mesh. They are not designed for major modifications to existing meshes. Because Trelis' display routines were not designed with these type of operations in mind, these commands may cause the current display of the affected entities to take an unexpected form. An appropriate drawing command can used to return the display to the desired view.

When deleting elements, the default behavior will be that the child mesh entities will be deleted when they become orphaned. For example, when a hex is deleted, if its faces, edges and vertices are no longer used by adjacent hex elements, then they will also be deleted. The no_propagate option will leave any child mesh entities regardless if they become orphaned.

The delete command removes one or more mesh entities from an existing mesh. Additional mesh entities may be deleted as well depending on the particular form of the command. Exactly which entities are removed is explained in the following descriptions.

To delete a hex or tet:

  1. In the Command Line, type Set Developer Commands On (Set Dev On).
  2. On the Command Panel, click on Mesh.
  3. Click on Hex or Tet.
  4. Click on the Delete action button.
  5. Enter the appropriate values for Hex ID(s) or Tet ID(s). This can also be done using the Pick Widget function.
  6. Click Apply..

Delete {Hex|Tet} <range> [No_Propagate]

Deletes the specified hexes or tets. All associated tris, faces, edges, and nodes are also deleted unless the no_propagate option is given.

Delete Wedge <range>

Deletes the specified wedges. No other mesh entities are affected.

To delete a quad or tri:

  1. In the Command Line, type Set Developer Commands On (Set Dev On).
  2. On the Command Panel, click on Mesh.
  3. Click on Quad or Tri.
  4. Click on the Delete action button.
  5. Enter the appropriate values for Quad ID(s) or Tri ID(s). This can also be done using the Pick Widget function.
  6. Click Apply..

Delete {Face|Tri} <range> [No_Propagate]

Deletes the specified faces or tris. For faces, all hexes that contain the face are also deleted. For tris, all tets that contain the tri are also deleted. All associated edges and nodes are also deleted unless the no_propagate option is given.

To delete an edge:

  1. In the Command Line, type Set Developer Commands On (Set Dev On).
  2. On the Command Panel, click on Mesh and then Edge.
  3. Click on the Delete action button.
  4. Enter the appropriate values for Edge ID(s). This can also be done using the Pick Widget function.
  5. Click Apply..

Delete Edge <range> [No_Propagate]

Deletes the specified edges. Any associated tris, faces, hexes, and tets are also deleted. Any associated nodes are also deleted unless the no_propagate option is given.

To delete a node:

  1. In the Command Line, type Set Developer Commands On (Set Dev On).
  2. On the Command Panel, click on Mesh and then Node.
  3. Click on the Delete action button.
  4. Enter the appropriate values for Node ID(s). This can also be done using the Pick Widget function.
  5. Click Apply..

Delete Node <range>

Deletes the specified nodes. Any associated edges, tris, faces, hexes, and tets are also deleted.