Computed Points not adjusted by DPOS

Sean Joyce

Well-Known Member
On a new project, I took 2 measurements on a control point and averaged them. (autonomous)
Points 2 and 3 are the observations and point 4 is the average of the 2& 3.
I typically average the point right after the observations are taken so it is not overlooked later.
After the DPOS adjustment point 4 has the same unadjusted coordinates from the autonomous survey.
Points 2 & 3 were adjusted.
The averaged point appears to be treated like a design point (no adjustment).
It looks like now I have to go through my recent projects and check for any point adjustment errors.
Any way to fix this so averaged points are treated differently and considered surveyed points ?
 

Sean Joyce

Well-Known Member
Went back on a previous project and found that the averaged points (which I used for a localization) were adjusted by DPOS.
So not sure now how I could make a mistake handling the averaging and the DPOS on the project mentioned above.
On the same project I received 2 slightly different solutions (.02') submitted through the L.S. and same file submitted through
the DPOS website.
 

Attachments

  • BASE1_091559.zip
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  • DPOS BASE 1 SOLUTION REPORT.zip
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Sean Joyce

Well-Known Member
Yes same base1 session, point 2 then point 3, after rotating the rod bubble 180 degrees.
I also have another issue that I am trying to figure out.
The total station distance between 1 and 2 agrees with the inverse between the unadjusted grid coordinates.
The inverse using the adjusted grid coordinates disagrees by 0.45'
Scale factor is not the problem.
 

Shawn Billings

Shawn Billings
5PLS
Can you post a screen shot of the statistics screen for 1 2 3 and 4?

Also what do you mean by adjusted? DPOS or point average? Thanks
 
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