I'm just going to take a sec and look it up in the game where I already impressed the IV judge... I still haven't hatched all those eggs again in Ultra Moon. =/ Okay, more like haven't even made it to the battle tree. Wish I hadn't restarted.
I had some trouble understanding what you're asking but I'll take my best shot anyway. There's a "point" of each IV on the line and the blue stuff between those lines is just to make it look like a shape. What you really should pay attention to is the words under each stat. "Pretty good" means it's between a certain amount. The only things that matter most of the time are "best" (IV of 31, naturally) and "no good" (I'm not in the habit of doing trick room, though). "Fantastic" means that the IV is 30. I always read the words instead of trying to look at the chart. I get why you'd be confused... I hope that helped.
If you're breeding competitively, most of the time I personally just use those three. 31 most of the time, 0 in some situations, and 30 for hidden power situations. If your Pokémon doesn't have perfect IVs, I recommend bottle caps... and if you're not breeding for competitive, I don't think there's much reason to worry about IVs!
Anyway, that was fun. I'm going to go fight my way to the battle tree now.