# Pastebin jx6Mgpyi
Taking an example of a generic slider:

Using a mouse: If the user clicks on the thumb control of the slider and moves vertically, the slider will respond by moving to the right or left, even if the movement is mostly upwards. There will be no page scrolling as a result of the vertical movement as long as they drag with focus on the slider. Therefore, the slider does not require a path-based gesture with mouse pointer.
Using a touch-screen: If the user puts their finger on the thumb control of the slider and moves upwards more than sideways, the slider may not respond because the browser takes control of the swipe and interprets it as a scroll, and will move the page up and down. Moving left or right on the slider thumb engages the slider and then the user can vary their vertical movement. This implementation has the 3-point requirement to work with a finger on a touch screen device so is a path-based gesture.