From 8784c7352735ea2f55d5215d6fd74b023d0d868e Mon Sep 17 00:00:00 2001
From: Alex Vinober <bw-Vinober-Aliaksandr@dev.fierylab.com>
Date: Tue, 12 Dec 2017 15:35:15 -0500
Subject: [PATCH] Legend lines width

---
 src/components/legend/attributes.js | 7 +++++++
 src/components/legend/defaults.js   | 1 +
 src/components/legend/style.js      | 3 ++-
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/components/legend/attributes.js b/src/components/legend/attributes.js
index 8b92707afaa..ac2d10ad635 100644
--- a/src/components/legend/attributes.js
+++ b/src/components/legend/attributes.js
@@ -34,6 +34,13 @@ module.exports = {
         editType: 'legend',
         description: 'Sets the width (in px) of the border enclosing the legend.'
     },
+    linewidth: {
+        valType: 'number',
+        min: 0,
+        role: 'style',
+        editType: 'legend',
+        description: 'Sets the width (in px) of the legend lines.'
+    },
     font: fontAttrs({
         editType: 'legend',
         description: 'Sets the font used to text the legend items.'
diff --git a/src/components/legend/defaults.js b/src/components/legend/defaults.js
index a094d5799ba..917c801cc48 100644
--- a/src/components/legend/defaults.js
+++ b/src/components/legend/defaults.js
@@ -61,6 +61,7 @@ module.exports = function legendDefaults(layoutIn, layoutOut, fullData) {
     coerce('bgcolor', layoutOut.paper_bgcolor);
     coerce('bordercolor');
     coerce('borderwidth');
+    coerce('linewidth');
     Lib.coerceFont(coerce, 'font', layoutOut.font);
 
     coerce('orientation');
diff --git a/src/components/legend/style.js b/src/components/legend/style.js
index 08199c2a888..f3a1a53ee9d 100644
--- a/src/components/legend/style.js
+++ b/src/components/legend/style.js
@@ -78,10 +78,11 @@ module.exports = function style(s, gd) {
 
         var line = d3.select(this).select('.legendlines').selectAll('path')
             .data(showLine ? [d] : []);
+        var lineWidth = gd._fullLayout.legend.linewidth;
         line.enter().append('path').classed('js-line', true)
             .attr('d', 'M5,0h30');
         line.exit().remove();
-        line.call(Drawing.lineGroupStyle);
+        line.call(Drawing.lineGroupStyle, lineWidth);
     }
 
     function stylePoints(d) {