1 files changed, 12 insertions, 22 deletions

diff --git a/visualize/static/d3.layout.js b/visualize/static/d3.layout.js
index 30ba791..d93fbe5 100644
--- a/visualize/static/d3.layout.js
+++ b/visualize/static/d3.layout.js
@@ -628,19 +628,17 @@ d3.layout.pie = function() {
         : function(i, j) { return sort(data[i], data[j]); });
 
     // Compute the arcs!
-    var arcs = index.map(function(i) {
-      return {
+    // They are stored in the original data's order.
+    var arcs = [];
+    index.forEach(function(i) {
+      arcs[i] = {
         data: data[i],
         value: d = values[i],
         startAngle: a,
         endAngle: a += d * k
       };
     });
-
-    // Return the arcs in the original data's order.
-    return data.map(function(d, i) {
-      return arcs[index[i]];
-    });
+    return arcs;
   }
 
   /**
@@ -1205,7 +1203,7 @@ function d3_layout_packIntersects(a, b) {
   var dx = b.x - a.x,
       dy = b.y - a.y,
       dr = a.r + b.r;
-  return (dr * dr - dx * dx - dy * dy) > .001; // within epsilon
+  return dr * dr - dx * dx - dy * dy > .001; // within epsilon
 }
 
 function d3_layout_packCircle(nodes) {
@@ -1264,28 +1262,20 @@ function d3_layout_packCircle(nodes) {
         if (isect == 1) {
           for (k = a._pack_prev; k !== j._pack_prev; k = k._pack_prev, s2++) {
             if (d3_layout_packIntersects(k, c)) {
-              if (s2 < s1) {
-                isect = -1;
-                j = k;
-              }
               break;
             }
           }
         }
 
         // Update node chain.
-        if (isect == 0) {
+        if (isect) {
+          if (s1 < s2 || (s1 == s2 && b.r < a.r)) d3_layout_packSplice(a, b = j);
+          else d3_layout_packSplice(a = k, b);
+          i--;
+        } else {
           d3_layout_packInsert(a, c);
           b = c;
           bound(c);
-        } else if (isect > 0) {
-          d3_layout_packSplice(a, j);
-          b = j;
-          i--;
-        } else { // isect < 0
-          d3_layout_packSplice(j, b);
-          a = j;
-          i--;
         }
       }
     }
@@ -1392,7 +1382,7 @@ d3.layout.cluster = function() {
     // Second walk, normalizing x & y to the desired size.
     d3_layout_treeVisitAfter(root, function(node) {
       node.x = (node.x - x0) / (x1 - x0) * size[0];
-      node.y = (1 - node.y / root.y) * size[1];
+      node.y = (1 - (root.y ? node.y / root.y : 1)) * size[1];
     });
 
     return nodes;