how to optimization of the control network

by yuannike, Sunday, March 27, 2022, 23:46 (53 days ago)

dear Dr.-Ing. Michael Lösler
i have input 12 points,which contains 3 datum points:


THE PROJECT CONTAINS UNCOMBINABLE POINT TYPES.WHAT IS THE DIFFERENCES BETWEEN THE REFERENCE/DATUM/STOCHASTIC POINTS?

how to optimization of the control network

by Micha ⌂, Bad Vilbel, Monday, March 28, 2022, 05:54 (53 days ago) @ yuannike

Hello,

in case of a so called free network adjustment, the point types "new point" and "datum point" are valid. "Reference points" and "stochastic points" cannot be combined with "datum points".

The coordinates of "reference points" are known beforehand. These coordines will not be adjusted. "Stochastic points" are known positions having variances. These points are used within a so called dynamic network adjustment.


Depending on your network design, you can combine datum and new points (free network) or reference/stochastic and new points, if you like to adjust the network w.r.t. a known reference frame.

/Micha

--
applied-geodesy.org - OpenSource Least-Squares Adjustment Software for Geodetic Sciences

how to optimization of the control network

by YUAN-JIANDONG @, Monday, March 28, 2022, 09:54 (52 days ago) @ Micha

Thank you for your kind reply,
I will try again.

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