Structure Management ─ Deployment and Administration
Setting assembly preferences
You can configure assembly preferences to control the display and expansion of structures. TCVIS_allow_NGC_expand_mode preference When the data panel viewer is open, and a structure line has an attached occurrence note of type UG Geometry , you can control the expansion of the structure by setting the TCVIS_allow_NGC_expand_mode preference: Value Description 0 The structure is not expanded. 1 The structure is expanded to show the geometry. 2 The structure is expanded but does not show the geometry. This preference has no effect on the Teamcenter Lifecycle Viewer or stand-alone Teamcenter lifecycle visualization. TCVIS_enable_NGC_feature preference The TCVIS_enable_NGC_feature preference controls how non UG geometry associated with occurrence nodes displays. When the TCVIS_enable_NGC_feature preference is set to True, the TCVIS_allow_NGC_expand preference is set to True, and the occurrence node has the UG Geometry value set to No, the structure displays as follows: If the occurrence node is an assembly, it is preceded by a icon. If the occurrence node is a leaf, it is preceded by a icon. If the occurrence node is an assembly, it can be expanded to show the children. If the graphics viewer is open in the data panel, it displays the occurrence node. However, if the TCVIS_allow_NGC_expand_mode preference is set to False, the structure displays as follows: If the occurrence node is an assembly, it is preceded by a icon. If the occurrence node is a leaf, it is preceded by a icon. If the occurrence node is an assembly, it cannot be expanded to show the children. If the graphics viewer is open in the data panel, it does not display the occurrence node. When the TCVIS_enable_NGC_feature preference is set to False, any features related to non UG geometry are ignored, consequently the TCVIS_allow_NGC_expand preference is also ignored. Any occurrence node (even those with the UG Geometry property set to No) are treated as normal BOM line occurrences. The non UG geometry icon does not display and the node may be expanded in the graphics viewer. If the TCVIS_enable_NGC_feature preference is not set, the system uses the default value of True. If this preference is set to False, the value of the TCVIS_allow_NGC_expand preference is ignored. This preference has no effect on the Teamcenter Lifecycle Viewer or stand-alone Teamcenter lifecycle visualization.
Source: https://docs.sw.siemens.com/documentation/external/PL20251212545240207/en-US/tc_help/administering_product_structures/jih1737253435894/lxp1737253436418/sysadmin_set_assembly_preferences.html · retrieved 2026-07-11