Messing around with the nona and the command line I have acquired an interest in learning more about what is inside a pto file. I have opened them with text editors and I have figured out most of it. http://archive.bigben.id.au/tutorials/360/readme/index.html Also helped.
There are variables in the PTO files that hugin creates that I have not been able to find an explanation for. Is there somewhere that I can go to read up on PTO files as hugin understands them?