// Generated by CoffeeScript 1.10.0
(function() {
  var arc, color, color_opacity, get_color, height, lod, radius, set_size, svg, width, zoom, zoomable_layer;

  width = 960;

  height = 500;

  radius = Math.min(width, height) / 2.2;

  color_opacity = 0.7;

  svg = d3.select('svg').attr({
    width: width,
    height: height,
    viewBox: (-width / 10) + " " + (-height / 5) + " " + width + " " + height
  });

  zoomable_layer = svg.append('g');

  zoom = d3.behavior.zoom().scaleExtent([1, 10]).on('zoom', function() {
    zoomable_layer.attr({
      transform: "translate(" + (zoom.translate()) + ")scale(" + (zoom.scale()) + ")"
    });
    zoomable_layer.selectAll('.semantic_zoom').attr({
      transform: "scale(" + (1 / zoom.scale()) + ")"
    });
    return lod(zoom.scale());
  });

  svg.call(zoom);

  lod = function(z) {
    return zoomable_layer.selectAll('.semantic_zoom').attr({
      display: function(d) {
        if (40 / z < d.dx * Math.pow(d.dy, 0.30)) {
          return 'inline';
        } else {
          return 'none';
        }
      }
    });
  };

  arc = d3.svg.arc().startAngle(function(d) {
    return d.x;
  }).endAngle(function(d) {
    return d.x + d.dx;
  }).innerRadius(function(d) {
    return Math.pow(d.y, 0.4);
  }).outerRadius(function(d) {
    return Math.pow(d.y + d.dy, 0.4);
  });

  color = d3.scale.category20();

  get_color = function(node) {
    if (node['tree_root'] != null) {
      return color(node.name);
    } else {
      return get_color(node.parent);
    }
  };

  set_size = function(d) {
    var sum;
    if (d.children == null) {
      d.size = 1;
      return 1;
    } else {
      sum = 1;
      d.children.forEach(function(c) {
        return sum += set_size(c);
      });
      d.size = sum;
      return sum;
    }
    return d;
  };

  d3.json('tree.json', function(error, forest) {
    var draw_tree, max_size;
    tree_utils.canonical_sort(forest);
    max_size = d3.max(forest.children, function(tree) {
      set_size(tree);
      return tree.size;
    });
    draw_tree = function(i, root) {
      var enter_labels, labels, nodes, partition, sectors, tree;
      set_size(root);
      partition = d3.layout.partition().size([2 * Math.PI, radius * radius * (root.size / max_size)]).sort(null).value(function(d) {
        return d.size;
      });
      nodes = partition.nodes(root);
      tree = zoomable_layer.append('g').attr({
        transform: "translate(" + ((i % 4) * 250) + "," + (Math.floor(i / 4) * 160) + ")"
      });
      sectors = tree.selectAll(".sector").data(nodes);
      sectors.enter().append('path').attr({
        "class": "sector",
        d: arc,
        fill: function(d) {
          if (d['tree_root'] != null) {
            return '#f2f2f2';
          } else {
            return get_color(d);
          }
        }
      }).append('title').text(function(d) {
        return d.name;
      });
      sectors.exit().remove();
      labels = tree.selectAll('.label').data(nodes);
      enter_labels = labels.enter().append('g').attr({
        "class": 'label',
        transform: function(d) {
          if (d['tree_root'] != null) {
            return "translate(0,0)";
          } else {
            return "translate(" + ((Math.pow(d.y + d.dy / 2, 0.4)) * Math.cos(d.x + d.dx / 2 - Math.PI / 2)) + ", " + ((Math.pow(d.y + d.dy / 2, 0.4)) * Math.sin(d.x + d.dx / 2 - Math.PI / 2)) + ")";
          }
        }
      });
      enter_labels.append('text').attr({
        "class": 'halo semantic_zoom',
        dy: '0.35em'
      }).text(function(d) {
        return d.name.replace('http://ontologies.semanticarts.com/', '');
      });
      return enter_labels.append('text').attr({
        "class": 'semantic_zoom',
        dy: '0.35em'
      }).text(function(d) {
        return d.name.replace('http://ontologies.semanticarts.com/', '');
      });
    };
    forest.children.forEach(function(tree_root, i) {
      return draw_tree(i, tree_root);
    });
    return lod(1);
  });

}).call(this);