4 ms·
I wonder how well the "pixel distance scrolled" translates into the actual distance your finger moved the wheel.
by rootusrootus 7y ago
I wonder how well the "pixel distance scrolled" translates into the actual distance your finger moved the wheel.
- mamon 7y agoMy rough estimate is: 2cm finger movement per 800px scrolled.
- azhenley 7y agoMy Logitech MX mouse's wheel keeps spinning and spinning, so not well at all.
- lukax 7y agoThis is a bit hard to calculate because of scroll acceleration and inertial scrolling.
- phoenixdblack 7y agoOr scrolled through swiping on the phone. I think this would be pretty difficult considering the different pixel densities on touch devices.
- jagged-chisel 7y agoSome system-level code would be ideal here. I wonder if, say, Apple logs this info locally (iPhone, iPad, Mac) for touching the screen, the trackpad, or moving a mouse across a surface.
- eqvinox 7y agoYou'd also need to identify the size of the scroll wheel, which is particularly hard if the user has multiple input devices and you don't even know which one they used :) (e.g. touchpad + mouse)