From 283a92bf27e58f476b4d92563bbc398f3c7b7d0c Mon Sep 17 00:00:00 2001
From: Shish Girling <shish.girling@scivisum.co.uk>
Date: Wed, 28 Aug 2013 17:14:28 +0100
Subject: [PATCH] Return "empty array" rather than "null" if data is missing

"series.datapoints.points = null" can cause other parts of flot to crash
---
 curvedLines.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/curvedLines.js b/curvedLines.js
index 65ba536..bc61102 100644
--- a/curvedLines.js
+++ b/curvedLines.js
@@ -290,7 +290,7 @@
 				for (var i = 1; i < n - 1; ++i) {
 					var d = (xdata[i + 1] - xdata[i - 1]);
 					if (d == 0) {
-						return null;
+						return [];
 					}
 
 					var s = (xdata[i] - xdata[i - 1]) / d;
@@ -334,7 +334,7 @@
 					var h = (xdata[max] - xdata[min]);
 
 					if (h == 0) {
-						return null;
+						return [];
 					}
 
 					var a = (xdata[max] - xnew[j]) / h;