WPF DevExpress 設置雷達圖Radar樣式

DevExpress中定義的ChartControl很不錯，很多項目直接使用這種控制項。

本節講述雷達圖的樣式設置

    <Grid>
        <Grid.Resources>
            <DataTemplate x:Key="LabelItemDataTemplate" DataType="dxc:SeriesLabelItem">
                <Border CornerRadius="8" Padding="8,1" Background="Transparent">
                    <!--<Border.Background>
                            <Binding Path="Color">
                            <Binding.Converter>
                            <dxc:BrushOverlayConverter/>
                            </Binding.Converter>
                            </Binding>
                        </Border.Background>-->
                    <TextBlock Text="{Binding Text}"/>
                </Border>
            </DataTemplate>
        </Grid.Resources>
        <dxc:ChartControl Background="Transparent" BorderBrush="Transparent" BorderThickness="0" ToolTipEnabled="True">
            <dxc:RadarDiagram2D x:Name="RadarDiagram2D" DomainBrush="Transparent" ShapeStyle="Circle" RotationDirection="Clockwise" DomainBorderBrush="#FF0885FF">
                <dxc:RadarDiagram2D.AxisY>
                    <dxc:RadarAxisY2D GridLinesBrush="#FF0885FF" GridLinesMinorVisible="False" Brush="Transparent">
                        <dxc:RadarAxisY2D.NumericScaleOptions>
                            <dxc:ContinuousNumericScaleOptions AutoGrid="False" GridSpacing="20" GridOffset="0" ></dxc:ContinuousNumericScaleOptions>
                        </dxc:RadarAxisY2D.NumericScaleOptions>
                        <dxc:RadarAxisY2D.Label>
                            <dxc:AxisLabel Visible="False"></dxc:AxisLabel>
                        </dxc:RadarAxisY2D.Label>
                        <dxc:RadarAxisY2D.WholeRange>
                            <dxc:Range AutoSideMargins="False"></dxc:Range>
                        </dxc:RadarAxisY2D.WholeRange>
                    </dxc:RadarAxisY2D>
                </dxc:RadarDiagram2D.AxisY>
                <dxc:RadarDiagram2D.AxisX>
                    <dxc:RadarAxisX2D GridLinesBrush="#FF0885FF">
                        <dxc:RadarAxisX2D.Label>
                            <dxc:AxisLabel Foreground="White" Staggered="False">
                            </dxc:AxisLabel>
                        </dxc:RadarAxisX2D.Label>
                    </dxc:RadarAxisX2D>
                </dxc:RadarDiagram2D.AxisX>
                <dxc:RadarDiagram2D.Series>
                    <dxc:RadarAreaSeries2D Transparency="0.7" Brush="GreenYellow">
                        <dxc:RadarAreaSeries2D.MarkerModel>
                            <dxc:CustomMarker2DModel>
                                <dxc:CustomMarker2DModel.PointTemplate>
                                    <ControlTemplate TargetType="dxc:CustomModelControl">
                                        <Ellipse Width="4" Height="4" Fill="GreenYellow"></Ellipse>
                                    </ControlTemplate>
                                </dxc:CustomMarker2DModel.PointTemplate>
                            </dxc:CustomMarker2DModel>
                        </dxc:RadarAreaSeries2D.MarkerModel>
                        <dxc:RadarAreaSeries2D.Label>
                            <dxc:SeriesLabel Visible="True" ConnectorVisible="False" ElementTemplate="{StaticResource LabelItemDataTemplate}" 
                                    Indent="0" dxc:CircularSeries2D.Angle="0"></dxc:SeriesLabel>
                        </dxc:RadarAreaSeries2D.Label>
                        <dxc:SeriesPoint Argument="C#" Value="95" Tag="30"></dxc:SeriesPoint>
                        <dxc:SeriesPoint Argument="Java" Value="20" Tag="100" />
                        <dxc:SeriesPoint Argument="Python" Value="60" Tag="30" />
                        <dxc:SeriesPoint Argument="Ruby" Value="80" Tag="20"/>
                        <dxc:SeriesPoint Argument="VB.Net" Value="50" Tag="0"/>
                        <dxc:SeriesPoint Argument="VBA" Value="90" Tag="62" />
                    </dxc:RadarAreaSeries2D>
                </dxc:RadarDiagram2D.Series>
            </dxc:RadarDiagram2D>
        </dxc:ChartControl>
    </Grid>

1、先設置主體，首先背景設置成透明

    ShapeStyle="Polygon"是設置雷達圖的形狀，Polygon指多邊形，Circle就是圓圈了。

　  RotationDirection="Clockwise"，指是數據否順時針顯示

2、設置AxisY　　

    <dxc:RadarDiagram2D.AxisY>
        <dxc:RadarAxisY2D GridLinesBrush="#FF0885FF" GridLinesMinorVisible="False" Brush="Transparent">
            <dxc:RadarAxisY2D.NumericScaleOptions>
                <dxc:ContinuousNumericScaleOptions AutoGrid="False" GridSpacing="20" GridOffset="0" ></dxc:ContinuousNumericScaleOptions>
            </dxc:RadarAxisY2D.NumericScaleOptions>
            <dxc:RadarAxisY2D.Label>
                <dxc:AxisLabel Visible="False"></dxc:AxisLabel>
            </dxc:RadarAxisY2D.Label>
            <dxc:RadarAxisY2D.WholeRange>
                <dxc:Range MinValue="0" MaxValue="100" AutoSideMargins="False"></dxc:Range>
            </dxc:RadarAxisY2D.WholeRange>
        </dxc:RadarAxisY2D>
    </dxc:RadarDiagram2D.AxisY>

GridLinesMinorVisible設置是否補充線條,

AutoGrid="False" GridSpacing="20"設置刻度間隔

dxc:AxisLabel Visible="False"這個可以設置是否顯示Y刻度

Range 當然就是範圍了，預設不設置也沒問題

3、設置AxisX

    <dxc:RadarDiagram2D.AxisX>
        <dxc:RadarAxisX2D GridLinesVisible="True" Interlaced="False" GridLinesMinorVisible="False" GridLinesBrush="#FF0885FF">
            <dxc:RadarAxisX2D.Label>
                <dxc:AxisLabel Foreground="White"> 
                </dxc:AxisLabel>
            </dxc:RadarAxisX2D.Label>
        </dxc:RadarAxisX2D>
    </dxc:RadarDiagram2D.AxisX>

GridLinesBrush設置中間交叉線的顏色。

dxc:AxisLabel設置數據標題的樣式
4、數據

    <dxc:RadarDiagram2D.Series>
        <dxc:RadarAreaSeries2D Transparency="0.7" Brush="GreenYellow">
            <dxc:RadarAreaSeries2D.MarkerModel>
                <dxc:CustomMarker2DModel>
                    <dxc:CustomMarker2DModel.PointTemplate>
                        <ControlTemplate TargetType="dxc:CustomModelControl">
                            <Ellipse Width="4" Height="4" Fill="GreenYellow"></Ellipse>
                        </ControlTemplate>
                    </dxc:CustomMarker2DModel.PointTemplate>
                </dxc:CustomMarker2DModel>
            </dxc:RadarAreaSeries2D.MarkerModel>
            <dxc:RadarAreaSeries2D.Label>
                <dxc:SeriesLabel Visible="True" ConnectorVisible="False" ElementTemplate="{StaticResource LabelItemDataTemplate}" 
                                    Indent="0" dxc:CircularSeries2D.Angle="0"></dxc:SeriesLabel>
            </dxc:RadarAreaSeries2D.Label>
            <dxc:SeriesPoint Argument="C#" Value="95" Tag="30"></dxc:SeriesPoint>
            <dxc:SeriesPoint Argument="Java" Value="20" Tag="100" />
            <dxc:SeriesPoint Argument="Python" Value="60" Tag="30" />
            <dxc:SeriesPoint Argument="Ruby" Value="80" Tag="20"/>
            <dxc:SeriesPoint Argument="VB.Net" Value="50" Tag="0"/>
            <dxc:SeriesPoint Argument="VBA" Value="90" Tag="62" />
        </dxc:RadarAreaSeries2D>
    </dxc:RadarDiagram2D.Series>

CustomMarker2DModel.PointTemplate可以重寫數據點的模板

dxc:SeriesLabel Visible="True" ConnectorVisible="False" ElementTemplate="{StaticResource LabelItemDataTemplate}"  這個設置數據值的顯示樣式

值得一提的是，雷達圖中數據值預設顯示的是Value，那如果需要的話，是否可以設置為其它值呢？答案是可以的，通過用Tag存儲數據或者直接用數據綁定，然後在dxc:RadarAreaSeries2D.Label的模板中綁定父屬性Tag或者綁定數據就行了。