Assertion: vertical coordinate system | /r/HasProperty | ellipsoidal
Facets:
value: with one exception
type: OTHER
Source sentences:
text: Vertical coordinate systems are either gravity-based or ellipsoidal.
text: Vertical coordinate systems in a global scene must be ellipsoidal, with one exception.
text: When the vertical coordinate system is ellipsoidal, it must share the same datum as the horizontal coordinate system.
text: Vertical coordinate systems in a global scene must be ellipsoidal.
text: When the vertical coordinate system is ellipsoidal, it must share the same datum as the horizontal coordinate system.