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var curve = new THREE.DaeAnimationCurve();
curve.addKey(new THREE.DaeAnimationKey(0, 0));
curve.addKey(new THREE.DaeAnimationKey(1, Math.PI*0.5));
curve.addKey(new THREE.DaeAnimationKey(2, Math.PI));
curve.addKey(new THREE.DaeAnimationKey(3, Math.PI*1.5));
curve.addKey(new THREE.DaeAnimationKey(4, Math.PI*2));
				
var channel = new THREE.DaeAnimationChannel(dae.rotation, "x");
channel.addCurve(curve);
				

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	setFromRotationMatrix: function ( m ) {
		// Adapted from: http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm
		function copySign(a, b) {
			return b < 0 ? -Math.abs(a) : Math.abs(a);
		}
		var absQ = Math.pow(m.determinant(), 1.0 / 3.0);
	    this.w = Math.sqrt( Math.max( 0, absQ + m.n11 + m.n22 + m.n33 ) ) / 2; 
	    this.x = Math.sqrt( Math.max( 0, absQ + m.n11 - m.n22 - m.n33 ) ) / 2; 
	    this.y = Math.sqrt( Math.max( 0, absQ - m.n11 + m.n22 - m.n33 ) ) / 2; 
	    this.z = Math.sqrt( Math.max( 0, absQ - m.n11 - m.n22 + m.n33 ) ) / 2; 

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/**
 * Decompose a THREE.Matrix4 into translation, rotation and scale. 
 */
var translation = new THREE.Vector3();
var rotation = new THREE.Quaternion();
var scale = new THREE.Vector3();

// decompose!
matrix.decompose(translation, rotation, scale);
		

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    pointInside: function(pt) {
        var i, j, a, b, xpi, ypi, xpj, ypj;
        var x = pt.x;
        var y = pt.y;
        var c = false;
        for (i = 0; i < this.points.length; i++) {
            j = (i+1) % this.points.length;
            a = this.points[i];
            b = this.points[j];
            xpi = a.x;

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var G = new networkx.Graph();
var tmp = new Map();
forEach (graph.getNodes(), function(n) {
    tmp.set(n, new Point2(n.x, n.y));
});
forEach (graph.getEdges(), function(e) {
    G.addEdge(tmp.get(e[0]), tmp.get(e[1]));
});

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listen(this.view.getElement(), ['mousedown', 'touchstart'], function(e) {
        var v = this.listenVertex_.get(goog.getUid(e.target));
        if (v) {
            dispatchEvent(this, new SelectionEvent(this, e, v));
        } else {
            var edge = this.listenEdge_.get(goog.getUid(e.target));
            if (edge) {
                dispatchEvent(this, new SelectionEvent(this, e, edge));
            }
        }

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console.log size.x, size.y, size.z

min = gl.vec3().set(vmax, vmax, vmax)
max = gl.vec3().set(vmin, vmin, vmin)
vs = [
    gl.vec3().set(-size.x/2, -size.y/2, -size.z/2),
    gl.vec3().set( size.x/2, -size.y/2, -size.z/2),
    gl.vec3().set( size.x/2,  size.y/2, -size.z/2),
    gl.vec3().set(-size.x/2,  size.y/2, -size.z/2),
    gl.vec3().set(-size.x/2, -size.y/2,  size.z/2),

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(defn crop-old
  [ctx w h]
  (let [data  (.-data (.getImageData ctx 0 0 w h))
        s     (* w h 4)
        [a b] (loop [y 0 px [] py []]
                (if (< y h)
                  (let [[x' y']
                    (loop [x 0 px' px py' py]
                      (if (< x w)
                        (let [a? (> (aget data (+ (* (+ (* y w) x) 4) 3)) 0)]

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(defn trimmed-bounds
  [ctx w h]
  (let [data (.-data (.getImageData ctx 0 0 w h))]
    (loop [y 0 minx Infinity miny Infinity maxx -Infinity maxy -Infinity]
      (if (< y h)
        (let [yw (* y w)
              minx' (loop [x 0]
                      (when (< x w)
                        (if (= (aget data (+ (* (+ yw x) 4) 3)) 0)
                          (recur (inc x))

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pngtopnm -mix assign.png > a.pnm && potrace a.pnm -s -o a.svg