Point 3D Geometry

[Capn]

Is it possible to redefine the geometry of a point?
Example - an invert depth that is subtracted from the point elevation so that a survey figure now represents the invert elevations.

[Novarese]

What about simply _MIRRORing those points around the Z=0 plane..?

[cadtag]

survey database, or civil3d points? if the latter, the z elevation is editable... or am I misunderstanding?

[Capn]

These come in as survey database points. I would not be opposed if they were civil3d points.
If relevant, I should note that our survey crew always records the lowest invert or sump as the first parameter.

[BlackBox]

If your Feature Line(s) are derived from the surveyed points (perhaps not the Survey Figures per-se; I don't currently use Survey DB here), and you're after a known change in depth, can you not simply use the RAISLOWERFEATURES Command?

Cheers

[Capn]

The way it appears this could work would be for the crew to locate the sewer rim w/rim elevation - then to apply a vertical offset for the linework representing the pipe. I may need to ask the crew to use the CPN and RPN field codes to connect to the rim shots... and that is a lot to ask!