Override Surfaces in Element Settings
For a model element, the surface setting depends on its Building Material, which includes a surface.
See Building Materials.
However, for any model element, you can override the Building Material surface definition, and assign a different surface (or surfaces).
GDL objects do not use Building Materials, but you can override their surface definitions.
There are two workflows for overriding an element surface:
•Use the Surface Painter palette (See Override Surfaces With Surface Painter)
•Use Element Settings as follows:
1.Select a placed element, or open the Default Settings dialog box for the element type.
2.In the Model panel, under Override Surfaces, click the toggle button of any or all of the surface pop-ups. Each pop-up corresponds to a face or edge of the element.
Note: Clicking the Chain icon (“Link Surfaces”) means that all of faces/edges will use a single surface override. To set a separate surface for any single face/edge, unlink the surface definitions by clicking the chain again.
To remove an override, just click the toggle button again. The surface defined in the Building Material is now used again.