I have been looking for this question along the forum and I have found several people asking for this topic (the best example in here) but I haven´t found a clear answer for it (I apologise if I'm duplicating the topic).
So, my main question is, can I use SNAP 3.0 to convert relative heights to absolute ones? What I have to use and do if SNAP can be used to this purpose? Or maybe, on the other hand, I have to use other type of software?
I have read in the linked topic that I attach before that the idea to make this conversion it's to have a known altitude point and change the altitude for the rest of points based on this one. I do understand this in theory but I don't know how to put it in practise, any suggestion?
Thanks for your time.