About mesh unfolding

Hi Anders,
So reading you I guess what I need to do is possible. (and of course as you probably already understood “meshing” in triangles is a way to be able to develop a surface having double curvature at start)
I have to say I don’t quite understand all what you describe, so if you can send me on a user (ie : not developer oriented) tutorial showing how to do what you are talking about, it could be absolutely helping for me !
Best regards,
Guy