Checks if a point is contained in a simplex
First install:
npm install point-in-simplex
Then use as follows:
var pis = require("point-in-simplex")
var triangle = [[0,0], [0,1], [1,0]]
console.log(pis(triangle, [0.2, 0.2])) // Prints: true
console.log(pis(triangle, [100, 100])) // Prints: false
(c) 2013 Mikola Lysenko. MIT License