Geometry and Mesh Entity Visibility

The visibility of geometric and mesh entities can be turned on or off, either individually, by entity type, by general entity class (mesh, geometry, etc.), or globally. Note that these commands do not refresh automatically. To refresh type display or graphics flush or click in the display window.

The commands to set the visibility are:

{ {Body|Curve|Surface|Volume} <range> } [Mesh][Geometry] Visibility [On|Off]

Edge Visibility [On | Off]

Vertex [Visibility] [on|off]

{Mesh|Geometry|BC} { [Visibility] [on|off] }

Boundary_layer visibility {on|off}

If the Mesh keyword is included, only the visibility of the mesh belonging to the specified entity is affected. Similarly, if the Geometry keyword is included, only the visibility of the geometry is affected. Including neither keyword is identical to using both keywords.

Entity visibility is also controlled via context (right-click) menus in the Tree and in the graphics window.

The GUI tool bar buttons for manipulating geometry, mesh, boundary conditions, and boundary layers visibility are the following:

Invisibility of geometry is inherited; visibility is not. For example, if a volume is invisible, its surfaces are also invisible unless they also belong to some other visible volume. As another case, if the volume is visible, but a surface is set to invisible, the surface will not follow its parent's visibility setting, but will remain invisible.

If edge visibility is off, mesh edges will not be drawn when mesh faces are drawn.

If vertex visibility is turned on, the vertices of the geometry become visible. The default for vertex visibility is off.

After turning mesh visibility off, all mesh will remain invisible until mesh visibility is turned on again. This is true no matter what other visibility commands are entered.

Similarly, after turning geometry visibility off, all geometry will remain invisible until geometry visibility is turned on again. This is true no matter what other visibility commands are entered.