I spent a gross amount of time on this on Sunday while watching football. The wife and kid were gone so I took advantage. Seems to be working though. I had to cheat a little because porting the code over from your 2.8 did not work alone. Its weird because there is something else that is making it do this without the sys.txt. For the life of me though I could not find it. So I ported all of the smartzoom and code over from your 2.8 with the addition of some sys.txt settings and it seems to be working like a charm (in an emulator). Will do more testing though.
That is good news Alex. Thanks! Hopefully you will come out with something.
What is missing in my mod is the lack of sliders for tilt up and tilt down angle selection (like the one in your v2.3); I have to adjust them in the SYS.txt. The other thing not perfect is the zooming-in before the turn, too little and too short. As a matter of fact, I like your v2.3 in this zooming-in chapter
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You know what, misterblue has tweaked the smartzoom feature very much in his own mod (including sliders and roundabout control). Instead taking code from of my mod, if you really want to make it works, you might as well take his code, which is better than mine, I think!
Thanks again for your investigation!
P.S.: I don't have that much experience in messing with smartzoom coding, at least not yet. So if you could make the smartzoom coding modular, I really want to import your code and embed it into my mod. This could also be beneficial for other modders like Abb, and the rest of the forum.
P.S.2: I know how modding iGo looks like when wife and children are around! 