Trimble Business Center

Ronny Schneider posted 05-14-2025 00:57

Which coordinate system did you assign to your project? Name, or better EPSG number.

My first thought is that you mixed up the elevation fields in the "Create Points" function.

"Elevation" is measured from sea level and is usually the value you see on plans.

"Height" is measured from the ellipsoid and is sea level plus local Geoid undulation.

But the difference of about 1820 feet?? (600 m) sounds way too much for this.

Please post a screen shot of the properties pane of one of your points.

Like this, so we can see local and global values.

 

Did you go into the project settings and changed the coordinate system AFTER creating some of the points?

TBC will transform existing coordinate values into the new system. If this system has a completely different definition (datum, ellipsoid, projection, geoid) the elevations of your points will change, BUT the coordinates as well, you didn't mention this though.

Jay Pisano posted 05-15-2025 12:29

Here are two screenshots.

Ronny Schneider posted 05-15-2025 14:37

As you can see in your screen shot, the elevation is already wrong while entering the coordinate. Because you enter two elevations which don't correspond and TBC is solving the conundrum by using the second one.

Leave the field completely empty or leave/enter a question mark.

The activated auto-advance shouldn't matter, but you can untick that one.

Robert Hoy posted 05-16-2025 18:47

Yes Ronny is right.  There are other instances where you want to leave the ? in a field that you do not have data to enter, e.g. local site settings.  Enter the information you have and don't put a zero where you don't!