From c6bfb03594c6b93e6822b030cc6a4c65076b75b4 Mon Sep 17 00:00:00 2001
From: Daniel Cohen Gindi <danielgindi@gmail.com>
Date: Thu, 10 Mar 2016 00:18:22 +0200
Subject: [PATCH] Fixed cubic fill causing borders on cubic stroke (Fixes #747)

---
 Charts/Classes/Renderers/LineChartRenderer.swift | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Charts/Classes/Renderers/LineChartRenderer.swift b/Charts/Classes/Renderers/LineChartRenderer.swift
index ac3872cdfd..6ccf509e6b 100644
--- a/Charts/Classes/Renderers/LineChartRenderer.swift
+++ b/Charts/Classes/Renderers/LineChartRenderer.swift
@@ -190,7 +190,10 @@ public class LineChartRenderer: LineRadarChartRenderer
         
         if (dataSet.isDrawFilledEnabled)
         {
-            drawCubicFill(context: context, dataSet: dataSet, spline: cubicPath, matrix: valueToPixelMatrix, from: minx, to: size)
+            // Copy this path because we make changes to it
+            let fillPath = CGPathCreateMutableCopy(cubicPath)
+            
+            drawCubicFill(context: context, dataSet: dataSet, spline: fillPath!, matrix: valueToPixelMatrix, from: minx, to: size)
         }
         
         CGContextBeginPath(context)