From a45fcb1970c5a4bc1119d2b6c0a97e0046312bd6 Mon Sep 17 00:00:00 2001
From: Michiel <linearza@users.noreply.github.com>
Date: Tue, 23 Feb 2016 13:47:22 +0200
Subject: [PATCH] gh-1595 Adds config option in area hash to draw the area fill
 above the line instead of below

---
 src/config.js     | 1 +
 src/shape.line.js | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/config.js b/src/config.js
index 240e394..6d54b23 100644
--- a/src/config.js
+++ b/src/config.js
@@ -168,6 +168,7 @@ c3_chart_internal_fn.getDefaultConfig = function () {
         bar_zerobased: true,
         // area
         area_zerobased: true,
+        area_above: false,
         // pie
         pie_label_show: true,
         pie_label_format: undefined,
diff --git a/src/shape.line.js b/src/shape.line.js
index fb68cf7..e9dcb8c 100644
--- a/src/shape.line.js
+++ b/src/shape.line.js
@@ -250,7 +250,7 @@ c3_chart_internal_fn.generateDrawArea = function (areaIndices, isSub) {
             return config.data_groups.length > 0 ? getPoints(d, i)[1][1] : yScaleGetter.call($$, d.id)(d.value);
         };
 
-    area = config.axis_rotated ? area.x0(value0).x1(value1).y(xValue) : area.x(xValue).y0(value0).y1(value1);
+    area = config.axis_rotated ? area.x0(value0).x1(value1).y(xValue) : area.x(xValue).y0(config.area_above ? 0 : value0).y1(value1);
     if (!config.line_connectNull) {
         area = area.defined(function (d) { return d.value !== null; });
     }