How can I check if a player-drawn line follows a path?

I want to draw an invisible path that the user must follow. I’ve stored that path as points. When a player draws a line, how can I test if it follows the path I’ve stored?

Here’s an example for tracing the letter A.

if((traitSprite.getX()<=Invisible.X  && traitSprite.getX()>=Invisible.X )){...}

(traitSprite is a sprite.)