From 20f7eee8ccf84a44c03c41986817af2f025f6b38 Mon Sep 17 00:00:00 2001
From: Alexander Zobnin <alexanderzobnin@gmail.com>
Date: Tue, 20 Sep 2016 12:38:18 +0300
Subject: [PATCH] fix(graph): increase Y min and max range when series values
 are the same, (#6082)

fixes #6070, #6050.
---
 public/vendor/flot/jquery.flot.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/public/vendor/flot/jquery.flot.js b/public/vendor/flot/jquery.flot.js
index 45d76b440c3..7159bcee30a 100644
--- a/public/vendor/flot/jquery.flot.js
+++ b/public/vendor/flot/jquery.flot.js
@@ -1663,8 +1663,10 @@ Licensed under the MIT license.
                 delta = max - min;
 
             if (delta == 0.0) {
-                // degenerate case
-                var widen = max == 0 ? 1 : 0.01;
+                // Grafana fix: wide Y min and max using increased wideFactor
+                // when all series values are the same
+                var wideFactor = 0.25;
+                var widen = max == 0 ? 1 : max * wideFactor;
 
                 if (opts.min == null)
                     min -= widen;