DEFORMATION ANALYSYS

by miha @, Wednesday, November 27, 2019, 19:07 (15 days ago)

Hello,

interested in what deformation methods do you use in JAG3D ??

Thank you very much for the answer.

Greetings

DEFORMATION ANALYSYS

by Micha ⌂, Wednesday, November 27, 2019, 19:13 (15 days ago) @ miha

Hello Miha,

interested in what deformation methods do you use in JAG3D ??

JAG3D used the so-called "observation based method", cf. Lösler et al. 2017 (in German). Based on measurements observed in two different epochs, JAG3D performs the congruence analysis.

kind regards
Micha

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

Tags:
JAG3D, deformation analysis, adjustment

S - TRANSFORMATION (GEODETIC DATUM)

by miha @, Wednesday, November 27, 2019, 19:26 (15 days ago) @ miha

Hello,

whether the program has the ability to perform S-TRANSFORMATION. I am attaching a link to the method description, in case a new geodetic date is set in case the given point is destroyed.


https://www.tandfonline.com/doi/abs/10.1179/1752270612Y.0000000005?src=recsys&journalCode=ysre20

http://www.geodetski-vestnik.com/51/3/gv51-3_549-564.pdf

Thanks for the reply and best regards

S - TRANSFORMATION (GEODETIC DATUM)

by Micha ⌂, Wednesday, November 27, 2019, 19:32 (15 days ago) @ miha

Hi Miha,

whether the program has the ability to perform S-TRANSFORMATION. I am attaching a link to the method description, in case a new geodetic date is set in case the given point is destroyed.

Since JAG3D works on the observation level (and not on the level of the adjusted coordinates), an S-transformation is not needed during the congruence analysis. This is one of the main advantages of such kind of method (in comparison to coordinate based methods).

regards
Micha

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

Tags:
JAG3D, deformation analysis, adjustment, s-transformation, Baarda

REDUCTION DISTANCES

by miha @, Wednesday, November 27, 2019, 19:41 (15 days ago) @ miha

Hello,

I am interested in which program to reduce the length of, because only this program does not allow reduction.

thank you for the answer and have a nice day

REDUCTION DISTANCES

by Micha ⌂, Wednesday, November 27, 2019, 19:48 (15 days ago) @ miha

Hi,

I am interested in which program to reduce the length of, because only this program does not allow reduction.

What kind of reduction do you mean?

/Micha

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

REDUCTION DISTANCES

by miha @, Wednesday, November 27, 2019, 20:05 (15 days ago) @ Micha

Hello,

I would like to reduce distance observations to the national coordinate system.

Example online script:

https://www.researchgate.net/publication/304003596_Empirical_methods_of_reducing_the_observations_in_geodetic_networks


http://globalsurvey.co.nz/wp-content/uploads/2014/10/QRG-26-Projections12d-Sys1200.pdf

REDUCTION DISTANCES

by Micha ⌂, Wednesday, November 27, 2019, 20:14 (15 days ago) @ miha

Hi,

I would like to reduce distance observations to the national coordinate system.

This is not an adjustment problem but a pre-processing that can be done by e.g. a modern total station.

/Micha

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

REDUCTION DISTANCES

by miha @, Wednesday, November 27, 2019, 20:31 (15 days ago) @ Micha

Hello, thanks for the help and all the answers and for taking the time to ask me questions.

And one last question, if it were possible to draw in your program an example of the movements I have attached. Outline of displacement vectors for k- series.


https://unilj-my.sharepoint.com/:i:/g/personal/mp9752_student_uni-lj_si/EcKwuhHz4oBKoKGMhA6e0QUBKFWDhxkiJgyYSndI6iOnPw?e=DdmkjF


Greetings!!

REDUCTION DISTANCES

by Micha ⌂, Wednesday, November 27, 2019, 20:43 (15 days ago) @ miha

Hi,

And one last question, if it were possible to draw in your program an example of the movements I have attached. Outline of displacement vectors for k- series.

JAG3D supports a congruence analysis of only two epochs (for that reason, multi-epochs must be separated).

/Micha

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

REDUCTION DISTANCES

by miha @, Wednesday, November 27, 2019, 20:58 (15 days ago) @ Micha

Thanks!!


I really thank you for your hard work and responsiveness that I have never experienced. thanks for your help


Greetings

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