From ef43f2bd9ee705851d3e762895ffe9635d811934 Mon Sep 17 00:00:00 2001
From: William Clapp <clapp.william@gmail.com>
Date: Sun, 28 Oct 2018 09:38:58 +0000
Subject: [PATCH] document spline interpolation type options (#2513)

Options for the type of spline interpolation methods aren't documented -- or at least I couldn't find it in docs. Option was added with #1268
---
 htdocs/samples/chart_spline.html | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/htdocs/samples/chart_spline.html b/htdocs/samples/chart_spline.html
index ca1f5c8..0161b29 100644
--- a/htdocs/samples/chart_spline.html
+++ b/htdocs/samples/chart_spline.html
@@ -18,7 +18,12 @@
             data1: 'spline',
             data2: 'spline'
           }
-        }
+        },
+        spline: {
+          interpolation: {
+            type: 'monotone', // 'cardinal' is default
+          },
+        },
       });
     </script>
   </body>