JudeOsborn

/**
* Converts degrees to radians.
*
* @param degrees
*/
function degreesToRadians(degrees) {
    return degrees * Math.PI / 180;
}

/**

JudeOsborn

function circPoint(angle, center, radius) {
    return {
        x: center.x + radius * Math.cos(degreesToRadians(angle)),
        y: center.y + radius * Math.sin(degreesToRadians(angle))
    };
}

JudeOsborn

function lineDistance(p1, p2) {
  var xs = 0;
  var ys = 0;

  xs = p2.x - p1.x;
  xs = xs * xs;

  ys = p2.y - p1.y;
  ys = ys * ys;

JudeOsborn

function angleFromPoints(p1, p2) {
    return Math.atan2(p2.y - p1.y, p2.x - p1.x);
}