• Triangle3D.js

  • ¶ 
    function Triangle3D(a, b, c) {
  this.a = a;
  this.b = b;
  this.c = c;
}
  • ¶

    Calculates triangle area using Heron’s formula http://en.wikipedia.org/wiki/Triangle#Using_Heron.27s_formula

    Triangle3D.prototype.getArea = function() {
  var ab = this.a.distance(this.b);
  var ac = this.a.distance(this.c);
  var bc = this.b.distance(this.c);

  var s = (ab + ac + bc) / 2; //perimeter
  return Math.sqrt(s * (s - ab) * (s - ac) * (s - bc));
}

module.exports = Triangle3D;