Hello tasa,

Now I have questions for deformation analysis.

For congruence analysis an example is given in the documentation of the wiki. Maybe you can translate this tutorial by e.g. google-translate or deeple.

I tried to do deformation analysis of datum points with gaus-helmert and unimodal transformation(uncheck Scale Mz in gaus-helmert)

You don't need the coordinate transformation module. JAG3D provides such a function to compare two epochs in a deformation analysis, cf. zfv 1/2017

/Micha