Notifications
Clear all

Magnet Field - Magnet Tools: Elevation Height Change

3 Posts
3 Users
0 Reactions
6 Views
(@choelsken)
Posts: 1
Registered
Topic starter
 

So I am currently attempting to upload .mjf field data (from Topcon Data Collector) into an MJT (Computer Software). However, when I attempt to import the .mjf data into the MJT, the elevation of my points radically change- the elevations of all of my points ?ÿ(with the exception of my base point) increases by 51.811' in the MJT.

?ÿ

After doing some testing, I have found out that the change in elevation is exactly the difference between the Geoid Elevation and the Ellipsoid Height. So in the .mjf, it displays the proper elevation of the point, but as soon as I transfer it to an MJT, the MJT thinks this elevation is the ellipsoid height, so it displays the elevation as 51.811ƒ?? higher.

(Example: MJF Point Elevation- 5683.915ƒ?? ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ MJF Point Ellipsoid Height- 5632.104ƒ??

?ÿ ?ÿ ?ÿ ?ÿ ?ÿ ?ÿ ?ÿ ?ÿMJT Point Elevation- 5735.726ƒ???ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ MJT Point Ellipsoid Height- 5683.915ƒ?? )

?ÿ

This is the third or fourth project that we have encountered this issue on, so we are wondering if anyone has an idea as to why this is happening and how to fix it.

 
Posted : February 2, 2021 12:06 pm
 Norm
(@norm)
Posts: 1291
Registered
 

If you want to send me your mjf I'll take a look. I've seen the issue before.?ÿ

 
Posted : February 2, 2021 2:32 pm
(@leegreen)
Posts: 2195
Member
 

Check your Geoid in Magnet Tools. Appears the MJF is looking for a different Geoid, than your office software.?ÿ

 
Posted : February 2, 2021 3:05 pm