There is a lot more to a vault than the definition. There is a reason you can’t just watch a YouTube video and get an understanding of the vaulting process. Just because you can do something doesn’t mean you know how to do it, or how it is done; performance is not understanding. This is very evident when it comes to vaulting.
Shapes are created by the position and movement of dog, handler, and disc. And shapes can be created by the dog, the handler, and the placement of the disc. Shapes are a fact of disc dog freestyle.
When the dog leaves the handler for a catch, that tends to create a line. When the dog is away from the handler and moves across the field to make a catch, as in a A Zig Zag is a series of catches in smooth succession that forces the dog to move back and forth across the field. Usually performed at a distance of 8-20 yards, the Zig or An Around the World is a disc dog flatwork pattern consisting of 4 catches in a circular pattern around the handler. This pattern is typically larger than 5 yards and often features creative, that tends to create a Shape.
Reading the disc is a skill that astute dogs and humans pick up rather quickly. The float, the Spins and Twists are tricks where the dog spins 360 degrees in a clockwise or counter clockwise fashion. Spin is clockwise and Twist is counter clockwise so it is important to have a, and the speed can reliably be gauged and predicted after several reps. Of course this changes with wind, disc choice, and throwing ability but, generally speaking, the flight path of a disc is easily predicted.