diff -r efd9c589177a -r c0b4a8b5a012 toolkit/javascript/d3/src/scale/nice.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/src/scale/nice.js	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,24 @@
+function d3_scale_nice(domain, nice) {
+  var i0 = 0,
+      i1 = domain.length - 1,
+      x0 = domain[i0],
+      x1 = domain[i1],
+      dx;
+
+  if (x1 < x0) {
+    dx = i0; i0 = i1; i1 = dx;
+    dx = x0; x0 = x1; x1 = dx;
+  }
+
+  if (dx = x1 - x0) {
+    nice = nice(dx);
+    domain[i0] = nice.floor(x0);
+    domain[i1] = nice.ceil(x1);
+  }
+
+  return domain;
+}
+
+function d3_scale_niceDefault() {
+  return Math;
+}