Strange Pipe Display in Profile

[KirkNoonan]

I don't do it this way very often, so I haven't really noticed before. I have a profile view with the vertical exaggeration set to 1. The horizontal 24" diameter pipes in the view measure 2' across as expected. A 24" diameter pipe sloping upward or downward at 45 degrees measures 1.47' across. Since there is no exaggeration going on, the pipes should all be the same size regardless of orientation, right? Does anyone have any suggestions as to what I'm missing here?

Thanks,

Kirk

IDS 2017 Premium

Civil 3D 2017 SP 1.1

[MarySeufert]

Personally having a hard time visualizing your issue.  A picture is worth a thousand words!

Depending on how a pipe crosses the profile's alignment will alter how it is drawn in profile view. Close to perpendicular it will draw a segmented circle. A more exaggerated crossing angle will result in a squished looking pipe. 

[KirkNoonan]

The pipes follow the alignment. Actually, the alignment is the centerline of the pipes. They are not crossing.

[cwr-pae]

does the pipe have a steep slope?

[cwr-pae · Accepted solution]

dang interruptions.

ACad draws the pipe in profile with the diameter vertical, not perpendicular to the pipe (ie: if the pipe has a steep slope it draws pipe as a polygon with the ends vertical and the sideswalls following the slope) This doesn't matter much in a distorted view, but is way wrong in a 1:1 view.

[MarySeufert · Accepted solution]

Civil 3D (and LDT before it) draws the pipes diameter vertically, not realistically...