Replacing an Existing Ground Surface

[jdumond]

I have an EG surface that was made from a poorly filtered LIDAR point cloud.  We have designed gradings using both feature lines and grading creation tools targeting this surface which is in the design drawing as a data shortcut.

I now have a much better existing ground model that was made from DEM files.  I want to replace the bad EG surface with the good one and have our future gradings target the new one.  Can I re-map the data shortcut to the new EG model or will I need to remake the design on the good EG model?

Thanks in advance

James DuMond

[TPMGYSZS]

If you delete the surface in the referenced drawing and name the new surface the exact same name, it should work. 

[RobertEVs · Accepted solution]

Open the Data Shortcut manager. Select the surface (FG Composite) in your current open drawing. Select the desired surface (FG AUX) and click to link selected object to selected shortcut

[jdumond]

I tried that and it made the drawing crash 😞

[jdumond]

Thanks Robert

Are you suggesting re-mapping the EG data short cut to the new drawing that has the good ground surface?

[RobertEVs]

Re-link or Link the bad (old) EG in your current drawing with any (new) EG surface you want using the Manage Data Shortcuts under the Manage tab. Once linked re-name it in your current drawing if you so desire. I use this when someone promotes an alignment in a drawing then I want to take it back to the original DS alignment. It re-links and remove editing capabilities of any promoted alignment or other smart objects

[jdumond]

Thank you Robert.  I was having problems with my design drawing crashing, so I deleted all the grading groups and profiles that referenced the bad surface.  After I did that, the ground model updated like a charm.