WPFToolkit Charting - Как удалить маркеры или изменить размер маркера?

Question

Я не могу понять, как удалить маркеры в графе WPFToolkit. Я вижу, что они являются эллипсами в XAML ниже, но я не могу успешно изменить любой из параметров, чтобы изменить размер их, или удалить их. Есть идеи?

Здесь XAML (которому нужны WPFToolkit) Я использовал в качестве теста.

<Window x:Class="MyInternetUsage.EnginePerformance" 
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:chartingToolkit="clr-namespace:System.Windows.Controls.DataVisualization.Charting;assembly=System.Windows.Controls.DataVisualization.Toolkit" xmlns:local="clr-namespace:DataVisualizationDemos" xmlns:datavis="clr-namespace:System.Windows.Controls.DataVisualization;assembly=System.Windows.Controls.DataVisualization.Toolkit" Title="EnginePerformance" Height="277" Width="371"> 
    <Grid> 
     <Grid.Resources> 
      <local:EngineMeasurementCollection x:Key="EngineMeasurementCollection"/> 

      <!-- charting:LineSeries --> 
      <Style TargetType="chartingToolkit:LineSeries"> 
       <Setter Property="IsTabStop" Value="False" /> 
       <Setter Property="PolylineStyle"> 
        <Setter.Value> 
         <Style TargetType="Polyline"> 
          <Setter Property="StrokeThickness" Value="1" /> 
         </Style> 
        </Setter.Value> 
       </Setter> 
      </Style> 

      <!-- charting:LineDataPoint --> 
      <Style TargetType="chartingToolkit:LineDataPoint"> 
       <Setter Property="Background" Value="Orange" /> 
       <Setter Property="BorderBrush" Value="Red" /> 
       <Setter Property="BorderThickness" Value="5" /> 
       <Setter Property="IsTabStop" Value="False" /> 
       <Setter Property="Width" Value="1000" /> 
       <Setter Property="Height" Value="1000" /> 
       <Setter Property="Template"> 
        <Setter.Value> 
         <ControlTemplate TargetType="chartingToolkit:LineDataPoint"> 
          <Grid x:Name="Root" Opacity="0"> 
           <VisualStateManager.VisualStateGroups> 
            <VisualStateGroup x:Name="CommonStates"> 
             <VisualStateGroup.Transitions> 
              <VisualTransition GeneratedDuration="0:0:0.1" /> 
             </VisualStateGroup.Transitions> 
             <VisualState x:Name="Normal" /> 
             <VisualState x:Name="MouseOver"> 
              <Storyboard> 
               <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="MouseOverHighlight" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)"> 
                <SplineColorKeyFrame KeyTime="00:00:00" Value="#FFFFDF00" /> 
               </ColorAnimationUsingKeyFrames> 
               <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="MouseOverHighlight" Storyboard.TargetProperty="(UIElement.Opacity)"> 
                <SplineDoubleKeyFrame KeyTime="00:00:00" Value="0.24" /> 
               </DoubleAnimationUsingKeyFrames> 
              </Storyboard> 
             </VisualState> 
            </VisualStateGroup> 
            <VisualStateGroup x:Name="SelectionStates"> 
             <VisualStateGroup.Transitions> 
              <VisualTransition GeneratedDuration="0:0:0.1" /> 
             </VisualStateGroup.Transitions> 
             <VisualState x:Name="Unselected" /> 
             <VisualState x:Name="Selected"> 
              <Storyboard> 
               <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="SelectionHighlight" Storyboard.TargetProperty="(UIElement.Opacity)"> 
                <SplineDoubleKeyFrame KeyTime="00:00:00" Value="0.18" /> 
               </DoubleAnimationUsingKeyFrames> 
              </Storyboard> 
             </VisualState> 
            </VisualStateGroup> 
            <VisualStateGroup x:Name="RevealStates"> 
             <VisualStateGroup.Transitions> 
              <VisualTransition GeneratedDuration="0:0:0.5" /> 
             </VisualStateGroup.Transitions> 
             <VisualState x:Name="Shown"> 
              <Storyboard> 
               <DoubleAnimation Duration="0" Storyboard.TargetName="Root" Storyboard.TargetProperty="Opacity" To="1" /> 
              </Storyboard> 
             </VisualState> 
             <VisualState x:Name="Hidden"> 
              <Storyboard> 
               <DoubleAnimation Duration="0" Storyboard.TargetName="Root" Storyboard.TargetProperty="Opacity" To="0" /> 
              </Storyboard> 
             </VisualState> 
            </VisualStateGroup> 
           </VisualStateManager.VisualStateGroups> 
           <ToolTipService.ToolTip> 
            <ContentControl Content="{TemplateBinding FormattedDependentValue}" /> 
           </ToolTipService.ToolTip> 
           <Ellipse Stroke="{TemplateBinding BorderBrush}" Fill="{TemplateBinding Background}" Height="30"/> 
           <Ellipse RenderTransformOrigin="0.661,0.321"> 
            <Ellipse.Fill> 
             <RadialGradientBrush GradientOrigin="0.681,0.308"> 
              <GradientStop Color="Green" /> 
              <GradientStop Color="#FFFFFFFF" Offset="1" /> 
             </RadialGradientBrush> 
            </Ellipse.Fill> 
           </Ellipse> 
           <Ellipse x:Name="SelectionHighlight" Opacity="0" Fill="Red" /> 
           <Ellipse x:Name="MouseOverHighlight" Opacity="0" Fill="White" /> 
          </Grid> 
         </ControlTemplate> 
        </Setter.Value> 
       </Setter> 
      </Style> 



      <Style TargetType="chartingToolkit:LegendItem"> 
       <Setter Property="IsTabStop" Value="False" /> 
       <Setter Property="Template"> 
        <Setter.Value> 
         <ControlTemplate TargetType="chartingToolkit:LegendItem"> 
          <Border Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}"> 
           <StackPanel Orientation="Horizontal"> 
            <Rectangle Width="8" Height="8" Fill="{Binding Background}" Stroke="{Binding BorderBrush}" StrokeThickness="1" Margin="0,0,3,0" /> 
            <datavis:Title Content="{TemplateBinding Content}" /> 
           </StackPanel> 
          </Border> 
         </ControlTemplate> 
        </Setter.Value> 
       </Setter> 
      </Style> 


     </Grid.Resources> 

     <chartingToolkit:Chart Title="Engine Performance"> 
      <!-- Power curve --> 
      <chartingToolkit:LineSeries 
          Title="Power" 
          ItemsSource="{StaticResource EngineMeasurementCollection}" 
          IndependentValueBinding="{Binding Speed}" 
          DependentValueBinding="{Binding Power}"> 
       <!-- Vertical axis for power curve --> 
       <chartingToolkit:LineSeries.DependentRangeAxis> 
        <chartingToolkit:LinearAxis 
            Orientation="Y" 
            Title="Power (hp)" 
            Minimum="0" 
            Maximum="250" 
            Interval="50" 
            ShowGridLines="True"/> 
       </chartingToolkit:LineSeries.DependentRangeAxis> 
      </chartingToolkit:LineSeries> 
      <!-- Torque curve --> 
      <chartingToolkit:LineSeries 
          Title="Torque" 
          ItemsSource="{StaticResource EngineMeasurementCollection}" 
          IndependentValueBinding="{Binding Speed}" 
          DependentValueBinding="{Binding Torque}"> 
       <!-- Vertical axis for torque curve --> 
       <chartingToolkit:LineSeries.DependentRangeAxis> 
        <chartingToolkit:LinearAxis 
            Orientation="Y" 
            Title="Torque (lb-ft)" 
            Minimum="50" 
            Maximum="300" 
            Interval="50"/> 
       </chartingToolkit:LineSeries.DependentRangeAxis> 
      </chartingToolkit:LineSeries> 
      <chartingToolkit:Chart.Axes> 
       <!-- Shared horizontal axis --> 
       <chartingToolkit:LinearAxis 
           Orientation="X" 
           Title="Speed (rpm)" 
           Interval="1000" 
           ShowGridLines="True"/> 
      </chartingToolkit:Chart.Axes> 
     </chartingToolkit:Chart> 
    </Grid> 
</Window> 

...

namespace DataVisualizationDemos 
{ 
    public class EngineMeasurementCollection : Collection<EngineMeasurement> 
    { 
     public EngineMeasurementCollection() 
     { 
      Add(new EngineMeasurement { Speed = 1000, Torque = 100, Power = 20 }); 
      Add(new EngineMeasurement { Speed = 2000, Torque = 160, Power = 60 }); 
      Add(new EngineMeasurement { Speed = 3000, Torque = 210, Power = 125 }); 
      Add(new EngineMeasurement { Speed = 4000, Torque = 220, Power = 160 }); 
      Add(new EngineMeasurement { Speed = 5000, Torque = 215, Power = 205 }); 
      Add(new EngineMeasurement { Speed = 6000, Torque = 200, Power = 225 }); 
      Add(new EngineMeasurement { Speed = 7000, Torque = 170, Power = 200 }); 
     } 
    } 

    public class EngineMeasurement 
    { 
     public int Speed { get; set; } 
     public int Torque { get; set; } 
     public int Power { get; set; } 
    } 
} 

Answer 1

Вы можете изменить любого из параметров, установив DataPointStyle зависимости свойства вашего LineSeries. Например, ...

<!-- Power curve --> 
<chartingToolkit:LineSeries 
       Title="Power" 
       ItemsSource="{StaticResource EngineMeasurementCollection}" 
       IndependentValueBinding="{Binding Speed}" 
       DependentValueBinding="{Binding Power}"> 

    <!-- Changing the data point style --> 
    <chartingToolkit:LineSeries.DataPointStyle> 
     <Style TargetType="chartingToolkit:LineDataPoint"> 
      <Setter Property="Width" Value="20"/> 
      <Setter Property="Height" Value="20"/> 
     </Style> 
    </chartingToolkit:LineSeries.DataPointStyle> 

    <!-- Vertical axis for power curve --> 
    etc... 
</chartingToolkit:LineSeries> 

Я не уверен в их удалении. Вы можете использовать один и тот же метод, чтобы установить видимость стиля для свертывания, но это не похоже на лучший ответ?