I'm a beginner in iOS developing. I wanted to develop a SwiftUI app (for children) which detect the drawing of a letter (for example "A") of a user, from a model displayed (an image of "A"). If the user is drawing out of the model, a popup indicates to draw in the model. I don't ask the code which doesn't help me to learn but the frameworks to use to detect the gestures of "hand" and if the model zone is quite filled.
Thanks a lot for your answer, Regards. Armand.