I have a project that was done on the wrong datum.?ÿ I've already edited the linework, breaklines, and built a surface.?ÿ?ÿ
I know that I can change all the point elevations and re-build.?ÿ But the breaklines, (3D polylines) are the issue.?ÿ
Is there a way to globally raise or lower them by the datum change, or am I stuck trying to do them all individually?
I am not a Carlson user, but could you just do a move command on them. Move from 0,0,0 to 0,0,10? 10 being just an arbitrary elevation change, make it whatever your datum change is.
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-G
You know, I was just thinking that.?ÿ Isolate the breakline layer, and then move by the change in datum.
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Thanks
You can also create the surface on your current datum, then use the Triangulation File Utilities to add or subtract the difference to your surface and redraw the contours based on the revised TIN.
Edit>Change>Elevation>Differential
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or else -chgelev in command line