topo elevations incorrect relative to levels

[bendarchitect]

I have created a project using 0,0,0 as the project base point and the survey point elevation. The level elevations are based on the survey point. I then created a topography using absolute elevation points to create the contours. The countours labeled correctly. When I look at the model in section, the topography is about 6' too high in relation to the levels. How can that be?? I would appreciate any help I can get at this point!

[loboarch]

Take a look at this topic and video in the online help. it may help resolve the issue.

http://help.autodesk.com/view/RVT/2016/ENU/?guid=GUID-B73E0D49-3330-4876-B8BD-7C23B9340626

[bendarchitect]

Jeff,

Thanks for your reply. My floor levels and my topography are using sea level elevations already. You can see in my screen shots: in section I have drawn a hidden line indicating where the grade shoud be, which is about 7'-6" lower. On the site plan the topo labels are correct. If I relocate the project it moves both the levels and the topo. Is there anything I'm missing?

[loboarch]

Hard to know the exact problem without having access to the RVT project. I just can't b e sure without the project. There are really 3 "base points" in Revit. The Survey Point, the project base point, and an internal base point. The 3rd one can't be changed or altered, the other 2 can be moved and relocated. They can be moved clipped or un-clipped to get the positions to read what you need. You may have to experiment moving these points both clipped and un-clipped to get the elevations to what you need.

[andy.lane9ZQUU]

I had the same problem. The solution was, I  opened an elevation view, and displayed the internal origin from the VG.  

Even though both the base point and survey point illustrated an elevation of 0'-0"  they were both 22 '4" above the origin. I moved them to 0'-0" and the topo could now be drawn correctly.  It seems the topo is drawn from the internal origin (absolute elevation), while the levels are either survey or base points.