From 6551e9212db7408d65fb90b9624beddbfe12c06a Mon Sep 17 00:00:00 2001
From: Victor Woeltjen <victor.woeltjen@nasa.gov>
Date: Fri, 17 Apr 2015 12:13:17 -0700
Subject: [PATCH] [Plot] Fix insertion in PlotLineBuffer

WTD-806.
---
 platform/features/plot/src/elements/PlotLineBuffer.js     | 4 ++--
 .../features/plot/test/elements/PlotLineBufferSpec.js     | 8 ++++++++
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/platform/features/plot/src/elements/PlotLineBuffer.js b/platform/features/plot/src/elements/PlotLineBuffer.js
index d875c9bc06..307abae666 100644
--- a/platform/features/plot/src/elements/PlotLineBuffer.js
+++ b/platform/features/plot/src/elements/PlotLineBuffer.js
@@ -131,8 +131,8 @@ define(
                     // Shift data over if necessary
                     if (index < length) {
                         buffer.set(
-                            buffer.subarray(index, length - index),
-                            index + sz
+                            buffer.subarray(index * 2, length * 2),
+                            (index + sz) * 2
                         );
                     }
 
diff --git a/platform/features/plot/test/elements/PlotLineBufferSpec.js b/platform/features/plot/test/elements/PlotLineBufferSpec.js
index 7838d3bbd4..5d6b294da8 100644
--- a/platform/features/plot/test/elements/PlotLineBufferSpec.js
+++ b/platform/features/plot/test/elements/PlotLineBufferSpec.js
@@ -66,6 +66,14 @@ define(
                 expect(buffer.findInsertionIndex(9)).toEqual(-1);
             });
 
+            it("allows insertion in the middle", function () {
+                var head = [ -41, 8, -39, 0, -35, 3 ],
+                    tail = [ -33, 9, -28, 8, -27, 11];
+                buffer.insert(mockSeries, 3);
+                expect(
+                    Array.prototype.slice.call(buffer.getBuffer()).slice(0, 24)
+                ).toEqual(head.concat(head).concat(tail).concat(tail));
+            });
 
         });
     }