Hi Braedon:
Assuming of course that you are describing a scenery object, as an alternative to having used the "Geo-location" feature, you can also utilize a plugin Ruby script to align the center of the
base of the object to the Sketchup Cartesian 0,0,0 coordinate 3D world "Origin of Axes".
Note that Dick Ludowise (aka "Rhumbaflappy") has generously provided a plugin Ruby script "
Center_Group_Bottom", to center models "on-ground" in Sketchup's 3D world.
AFAIK, normally when we import or create a 3D model from scratch in Sketchup, by default, it is placed in a "quadrant" OFF of- but with 1 'corner' aligned onto- the "Origin of Axes" in Sketchup's 3D world.
If we use Dick's "
Center_Group_Bottom" plugin for Sketchup, we will automatically move a model's "Reference Point" (the term used for the central datum of a 3D model in FS) to the precise "Origin of Axes" for the Sketchup 3D world...
while still maintaining the base level of the model on the "ground" plane of the Sketchup 3D world.
Note, however, that Dick's "
Center_Group_Bottom" plugin does
NOT "Move-To-Origin-And-Center"
both above
and below ground... it instead simply keeps models
on the ground.
BTW:
That is probably a preferred workflow, as once the model is imported and converted by ModelConverterX for use in FS, we would then simply adjust the Altitude relative to the local "ground" (using the default "
AltitudeIsAGL-TRUE" parameter setting) when placing the scenery object via BGLComp XML, or
without specifying elevation AMSL when placing that scenery object via Autogen XML code.
Rhumbaflappy's "Center_Group_Bottom" plugin is discussed in these threads:
http://www.fsdeveloper.com/forum/threads/centering-objects.71321/
http://www.fsdeveloper.com/forum/threads/sketchup-models-and-their-altitude-point.353776/
Hope this helps a bit more.
GaryGB