Merge pull request #712 from gunterhager/cubic-line-chart-fill

Fix for cubic line chart fill when charts that don't start at x-index 0 #711
ChartsOrg · Feb 23, 2016 · 79b5ceb · 79b5ceb
2 parents 6e4bcbc + 2c0c9cc
commit 79b5ceb
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/Charts/Classes/Renderers/LineChartRenderer.swift b/Charts/Classes/Renderers/LineChartRenderer.swift
@@ -208,8 +208,11 @@ public class LineChartRenderer: LineRadarChartRenderer
 
         let fillMin = dataSet.fillFormatter?.getFillLinePosition(dataSet: dataSet, dataProvider: dataProvider) ?? 0.0
 
-        var pt1 = CGPoint(x: CGFloat(to - 1), y: fillMin)
-        var pt2 = CGPoint(x: CGFloat(from), y: fillMin)
+        let xTo = dataSet.entryForIndex(to - 1)?.xIndex ?? 0
+        let xFrom = dataSet.entryForIndex(from)?.xIndex ?? 0
+
+        var pt1 = CGPoint(x: CGFloat(xTo), y: fillMin)
+        var pt2 = CGPoint(x: CGFloat(xFrom), y: fillMin)
         pt1 = CGPointApplyAffineTransform(pt1, matrix)
         pt2 = CGPointApplyAffineTransform(pt2, matrix)