Merge pull request #462 from vvit/antialias

Add ability to turn off antialias for grid lines
ChartsOrg · Oct 30, 2015 · 19b0726 · 19b0726
2 parents d389c4f + 48b9dc7
commit 19b0726
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Showing 3 changed files with 15 additions and 2 deletions.
diff --git a/Charts/Classes/Components/ChartAxisBase.swift b/Charts/Classes/Components/ChartAxisBase.swift
@@ -44,6 +44,9 @@ public class ChartAxisBase: ChartComponentBase
     /// **default**: false
     public var drawLimitLinesBehindDataEnabled = false
 
+    /// the flag can be used to turn off the antialias for grid lines
+    public var gridAntialiasEnabled = true
+
     public override init()
     {
         super.init()

diff --git a/Charts/Classes/Renderers/ChartXAxisRenderer.swift b/Charts/Classes/Renderers/ChartXAxisRenderer.swift
@@ -212,7 +212,12 @@ public class ChartXAxisRenderer: ChartAxisRendererBase
         }
 
         CGContextSaveGState(context)
-
+
+        if (!_xAxis.gridAntialiasEnabled)
+        {
+            CGContextSetShouldAntialias(context, false)
+        }
+
         CGContextSetStrokeColorWithColor(context, _xAxis.gridColor.CGColor)
         CGContextSetLineWidth(context, _xAxis.gridLineWidth)
         if (_xAxis.gridLineDashLengths != nil)

diff --git a/Charts/Classes/Renderers/ChartYAxisRenderer.swift b/Charts/Classes/Renderers/ChartYAxisRenderer.swift
@@ -274,7 +274,12 @@ public class ChartYAxisRenderer: ChartAxisRendererBase
         }
 
         CGContextSaveGState(context)
-
+
+        if (!_yAxis.gridAntialiasEnabled)
+        {
+            CGContextSetShouldAntialias(context, false)
+        }
+
         CGContextSetStrokeColorWithColor(context, _yAxis.gridColor.CGColor)
         CGContextSetLineWidth(context, _yAxis.gridLineWidth)
         if (_yAxis.gridLineDashLengths != nil)