From d088646098991a76d179340c545a87b04b1aba12 Mon Sep 17 00:00:00 2001
From: Andy Dufilie <andrew.dufilie@iweave.com>
Date: Thu, 21 Jan 2016 14:01:48 -0500
Subject: [PATCH] fixed isWithinBar() crash when there were less than 2 items
 in pathSegList

---
 src/shape.bar.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/shape.bar.js b/src/shape.bar.js
index 514b7f0..f094ae4 100644
--- a/src/shape.bar.js
+++ b/src/shape.bar.js
@@ -113,6 +113,9 @@ c3_chart_internal_fn.generateGetBarPoints = function (barIndices, isSub) {
     };
 };
 c3_chart_internal_fn.isWithinBar = function (that) {
+    if (that.pathSegList.numberOfItems < 2) {
+        return false;
+    }
     var mouse = this.d3.mouse(that), box = that.getBoundingClientRect(),
         seg0 = that.pathSegList.getItem(0), seg1 = that.pathSegList.getItem(1),
         x = Math.min(seg0.x, seg1.x), y = Math.min(seg0.y, seg1.y),