添加MarkerStroke颜色在Smooth正确时添加粗线条

我有以下AreaSeries图表使用OxyPlot在Xamarin Forms。它有三个系列。添加MarkerStroke颜色在Smooth正确时添加粗线条

光滑= TRUE，MarkerStroke =默认情况下，如预期结果
光滑= TRUE，MarkerStroke =黄色粗线显示了该行预期
光滑=假，MarkerStroke =黄色，结果

因此，当我使用Smooth = true并为MarkerStroke定义颜色时，它会添加不需要的粗线。如何解决/解决它？

注意：在线系列，它按预期工作。问题只在区域系列上。

情节模式

public class MyOxyPlotModelData 
{ 
     public PlotModel AreaModel { get; set; } 

     public MyOxyPlotModelData() 
     { 
      AreaModel = CreateAreaChart(); 

     } 

     public PlotModel CreateAreaChart() 
     { 
      PlotModel plotModel1 = new PlotModel { Title = "Area" }; 
      var valueAxisX = new LinearAxis 
      { 
       Position = AxisPosition.Bottom, 
       AxislineColor = OxyColors.White, 
       TicklineColor = OxyColors.White, 
       TextColor = OxyColors.White, 
       FontSize = 12, 
       IsZoomEnabled = false, 
       IsPanEnabled = false 
      }; 

      var valueAxisY = new LinearAxis 
      { 
       Position = AxisPosition.Left, 
       //Maximum = 15, 
       //Minimum = 0, 
       AxislineColor = OxyColors.White, 
       TicklineColor = OxyColors.White, 
       TextColor = OxyColors.White, 
       FontSize = 12, 
       IsZoomEnabled = false, 
       IsPanEnabled = false 
      }; 

      plotModel1.Axes.Add(valueAxisX); 
      plotModel1.Axes.Add(valueAxisY); 

      plotModel1.DefaultColors = new List<OxyColor> 
      { 
       OxyColors.Purple, 
       OxyColors.DeepPink, 
       OxyColors.Teal 
       //OxyColor.FromRgb(0x20, 0x4A, 0x87) 
      }; 

      AreaSeries areaSeries1 = new AreaSeries 
      { 
       MarkerType = MarkerType.Circle, 
       MarkerSize = 2, 
       //MarkerStroke = OxyColors.White, 
       StrokeThickness = 1, 
       Smooth = true 
      }; 
      areaSeries1.Points.Add(new DataPoint(0, 50)); 
      areaSeries1.Points.Add(new DataPoint(10, 140)); 
      areaSeries1.Points.Add(new DataPoint(20, 80)); 


      AreaSeries areaSeries2 = new AreaSeries 
      { 
       MarkerType = MarkerType.Circle, 
       MarkerSize = 2, 
       MarkerStroke = OxyColors.Yellow, 
       StrokeThickness = 1, 
       Smooth = true 
      }; 
      areaSeries2.Points.Add(new DataPoint(0, 30)); 
      areaSeries2.Points.Add(new DataPoint(15, 150)); 
      areaSeries2.Points.Add(new DataPoint(20, 20)); 


      AreaSeries areaSeries3 = new AreaSeries 
      { 
       MarkerType = MarkerType.Circle, 
       MarkerSize = 2, 
       MarkerStroke = OxyColors.Yellow, 
       StrokeThickness = 1, 
       Smooth = false 
      }; 
      areaSeries3.Points.Add(new DataPoint(0, 40)); 
      areaSeries3.Points.Add(new DataPoint(15, 110)); 
      areaSeries3.Points.Add(new DataPoint(20, 55)); 

      plotModel1.Series.Add(areaSeries1); 
      plotModel1.Series.Add(areaSeries2); 
      plotModel1.Series.Add(areaSeries3); 


      return plotModel1; 

     } 
}

应用。 XAML.cs

public App() 
    { 
     InitializeComponent(); 
     var vSampleData = new MyOxyPlotModelData(); 

     MainPage = new OxyPlotNewSeries.MainPage { BindingContext = vSampleData }; 

    }

MainPage.xaml中你有

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms" 
      xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" 
      xmlns:local="clr-namespace:OxyPlotNewSeries" 
      xmlns:oxy="clr-namespace:OxyPlot.Xamarin.Forms;assembly=OxyPlot.Xamarin.Forms" 
      x:Class="OxyPlotNewSeries.MainPage"> 

    <AbsoluteLayout> 

     <oxy:PlotView Model="{Binding AreaModel}" BackgroundColor="#000000" 
        AbsoluteLayout.LayoutBounds="10,30,.9,.9" 
        AbsoluteLayout.LayoutFlags="WidthProportional,HeightProportional" /> 
    </AbsoluteLayout> 

</ContentPage>

来源

2017-08-01 Lijo

平滑产生很多中间点。当你定义一个标记时，它会在所有这些点上绘制一个标记。粗线只是标记靠在一起。你通过不添加标记来解决它。 –

就像@PalleDue指出的那样，如果你不需要它，就不要使用它。虽然如果厚度是你的不喜欢，我没有看到MarkerStrokeThickness属性设置在任何地方？ –

@PalleDue为什么它在系列系列中工作正常，而不是在系列系列中？请参阅问题 – Lijo

一种选择是使用TwoColorAreaSeries代替，因为你描述不会发生这一系列类型的问题。

TwoColorAreaSeries areaSeries2 = new TwoColorAreaSeries 
{ 
    MarkerType = MarkerType.Circle, 
    MarkerSize = 5, 
    MarkerStroke = OxyColors.Yellow, 
    MarkerStrokeThickness = 5, 
    StrokeThickness = 1, 
    Smooth = true 
}; 
areaSeries2.Points.Add(new DataPoint(0, 30)); 
areaSeries2.Points.Add(new DataPoint(15, 140)); 
areaSeries2.Points.Add(new DataPoint(20, 20));

编辑：它是一个错误吗？这可能是......虽然通过自己的例子来看，似乎它的意思是这个样子绘制这样的事情：

这：

来源

2017-08-05 12:21:29 jsanalytics

那么，它在AreaSeries中是一个错误吗？ – Lijo

请参阅我的**编辑**。 – jsanalytics

添加MarkerStroke颜色在Smooth正确时添加粗线条

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