This repo contains javascript stuff for recognising gestures made on touch screens.

This is a javascript implementation for touch screens of the $1 gesture recogniser.

The $1 recogniser is a uni-stroke recogniser and analyses simple one stroke gestures (hence the name). For more complicated, multi-stroke gestures, see the section on the $N recogniser.

The recogniser comes preloaded with 16 gestures, but custom ones can easily be added.

It's vanilla javascript, by the way.

// DOM element within which to setup recogniser - use el = null for whole screen
var el = document.getElementById("detectBox"); 

// Begin detection
new Detect2d(el);                                           

// Listen for recogniser done events and go do recognising stuff...
doc.addEventListener("RECOGNIZER_DONE", function (data) { 
    var result = data.detail, name, score;
    name = result.Name;	                    // Name of detected gesture, if one
    score = result.Score;                   // Its score (btw. 0 and 1);
});

The $1 Unistroke Recognizer was originally created by:

Jacob O. Wobbrock, University of Washington, Andrew D. Wilson, Microsoft Research, and Yang Li, University of Washington. https://depts.washington.edu/aimgroup/proj/dollar/