The SWIFT IOS is interfaced to the CRDS UNOS graphics via an emulation layer within TASC (rsgraph.vme). This layer talks directly to the XServer and replaces the VGME2000. This technique for emulation is much more efficient.
Within the graphics layer, there is a special function available which is called to render directly to a window. This routine can be added to the map page to add geographic or navigational features.