Datum Model Ellipsoid Missing

Datum Model Ellipsoid Missing

AEC_Cadd
Collaborator Collaborator
381 Views
4 Replies
Message 1 of 5

Datum Model Ellipsoid Missing

AEC_Cadd
Collaborator
Collaborator

When I try to use Vertical Datum Transformation, it tells me that the Geoid Model is missing from C:\ProgramData\Autodesk\C3D2023\enu\Geoid Models\

I got a Geoid file from our Trimble dealer but it doesn't work. It is a *.ggf file.

Where do I get a geoid file that would work for Vertical units Transformation?

What would the file extension be?

0 Likes
Accepted solutions (2)
382 Views
4 Replies
Replies (4)
Message 2 of 5

Pointdump
Consultant
Consultant
Accepted solution

Hi @AEC_Cadd,
The files you need have a .bin extension. Geoid 12B is "g2012bu0.bin".

Dave

Dave Stoll
Las Vegas, Nevada

EESignature

64GB DDR4 2400MHz ECC SoDIMM / 1TB SSD
NVIDIA Quadro P5000 16GB
Windows 10 Pro 64 / Civil 3D 2025
Message 3 of 5

AEC_Cadd
Collaborator
Collaborator

Thanks

Do you know where i can find one?

0 Likes
Message 4 of 5

Pointdump
Consultant
Consultant
Accepted solution

@AEC_Cadd,
Hit the Help button lower right and it'll give you this link to a site where you can download Vertical Datums:
https://www.isgeoid.polimi.it/

Dave

 

Help_1.png

 

Dave Stoll
Las Vegas, Nevada

EESignature

64GB DDR4 2400MHz ECC SoDIMM / 1TB SSD
NVIDIA Quadro P5000 16GB
Windows 10 Pro 64 / Civil 3D 2025
0 Likes
Message 5 of 5

AEC_Cadd
Collaborator
Collaborator
Thanks, I appreciate your help
0 Likes