一个(部分)答案是以数据点的样式设置数据点的宽度和高度。例如:
<chartingTK:AreaSeries.DataPointStyle>
<Style TargetType="Control">
<Setter Property="Height" Value="25" />
<Setter Property="Width" Value="25" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="chartingTK:AreaDataPoint">
<Grid x:Name="Root" Opacity="1">
<Ellipse Width="75" Height="25"
StrokeThickness="{TemplateBinding BorderThickness}"
Stroke="OrangeRed"
Fill="{TemplateBinding Background}"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</chartingTK:AreaSeries.DataPointStyle>
也许不是最佳的,但至少它是一个起点。