// Generated by CoffeeScript 1.10.0
(function() {
  var A, alphas, canvas, color, context, j, points, results;

  points = [[480, 30], [800, 250], [780, 250], [480, 470], [260, 250], [160, 280]];

  A = 10;

  alphas = (function() {
    results = [];
    for (var j = 0; 0 <= A ? j <= A : j >= A; 0 <= A ? j++ : j--){ results.push(j); }
    return results;
  }).apply(this).map(function(d) {
    return d / A;
  });

  color = function(alpha) {
    switch (alpha) {
      case 0:
        return 'green';
      case 0.5:
        return 'blue';
      case 1:
        return 'red';
      default:
        return '#CCC';
    }
  };

  canvas = document.querySelectorAll('canvas')[0];

  context = canvas.getContext('2d');

  alphas.forEach(function(alpha, i) {
    var line;
    line = d3_shape.line().context(context).interpolate('catmull-rom', alpha);
    context.beginPath();
    line(points);
    context.lineWidth = 1;
    context.strokeStyle = color(alpha);
    return context.stroke();
  });

}).call(this);