一、DynamicDataDisplay下载和引用
1.新建项目，下载DynamicDataDisplay引用：
如下图：


二、前端开发：

        <Border Grid.Row="0" Grid.Column="2" BorderBrush="Purple" BorderThickness="1" Margin="2"><Grid><Grid.RowDefinitions><RowDefinition Height="20"/><RowDefinition Height="*"/></Grid.RowDefinitions><CheckBox Grid.Row="0" Name="ShowMark" Content="ShowMark" IsChecked="True" Click="ShowMark_Click"/><d3:ChartPlotter Grid.Row="1" Name="chartdemo"></d3:ChartPlotter></Grid></Border>

三、后端开发：
1、定义两条曲线：

        //曲线1private LineAndMarker<ElementMarkerPointsGraph> line1 = null;//曲线2private LineAndMarker<ElementMarkerPointsGraph> line2 = null;

2、设置曲线属性：

            //定义X轴数据var exds = new EnumerableDataSource<double>(Listx);exds.SetXMapping(p => p);//定义Y轴数据var eyds = new EnumerableDataSource<double>(Listy);eyds.SetYMapping(p => p);//定义鼠标点位显示值eyds.AddMapping(ShapeElementPointMarker.ToolTipTextProperty, p => string.Format("温度{0}", p));//定义数据IPointDataSource chartds1 = new CompositeDataSource(exds, eyds);

3、曲线赋值：

            line1 = chartdemo.AddLineGraph(chartds1,new Pen(Brushes.LimeGreen, 3),//曲线数据，曲线颜色，曲线宽度new CircleElementPointMarker { Size = 10, Fill = Brushes.Orange, Brush = Brushes.Red },//曲线标点的点大小和颜色new PenDescription("温度曲线"));//曲线的名称

4、控件刷新显示：

            chartdemo.Children.Add(new CursorCoordinateGraph());chartdemo.FitToView();

5、控制曲线是否显示标点：

            if (ShowMark.IsChecked == true){line1.MarkerGraph.DataSource = chartds1;}else{line1.MarkerGraph.DataSource = null;}

6、清除某条曲线：

            if (line1 != null){chartdemo.Children.Remove(line1.LineGraph);}

四、展示