SplineAreaFullStackedSeries2D.LineTension Property

Gets or sets the line tension to be used when drawing splines of the SplineAreaFullStackedSeries2D.

Namespace: DevExpress.Xpf.Charts

Assembly: DevExpress.Xpf.Charts.v23.2.dll

NuGet Package: DevExpress.Wpf.Charts

Declaration

C#

public double LineTension { get; set; }

VB.NET

Public Property LineTension As Double

Property Value

Type	Description
Double	A double value specifying the line tension.

Remarks

Use the LineTension property to specify the “smoothness” of a spline curve. Note that if the LineTension property is set to 0, the SplineAreaFullStackedSeries2D is drawn in the same way as the AreaFullStackedSeries2D.

Example

The following example demonstrates how to create a 2D Full-Stacked Spline Area chart. To do this, it is necessary to assign the ChartControl.Diagram property to XYDiagram2D, and then add four SplineAreaFullStackedSeries2D objects with points to the diagram’s Diagram.Series collection.

Also, this example shows how to display series labels on a diagram, customize the label pattern and add a legend (showing series names) to a chart.

MainWindow.xaml

<Window
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:dxc="http://schemas.devexpress.com/winfx/2008/xaml/charts"
        x:Class="FullStackedSplineAreaChart.MainWindow"
        Title="MainWindow" Height="520" Width="555">
    <Grid>
        <dxc:ChartControl>
            <dxc:ChartControl.Diagram>
                <dxc:XYDiagram2D>
                    <dxc:XYDiagram2D.Series>
                        <dxc:SplineAreaFullStackedSeries2D DisplayName="Cluster">
                            <dxc:SplineAreaFullStackedSeries2D.Points>
                                <dxc:SeriesPoint Argument="11/01/1997" Value="10" />
                                <dxc:SeriesPoint Argument="11/01/1999" Value="962" />
                                <dxc:SeriesPoint Argument="11/01/2001" Value="18832" />
                                <dxc:SeriesPoint Argument="11/01/2003" Value="264332" />
                                <dxc:SeriesPoint Argument="11/01/2005" Value="1112753" />
                                <dxc:SeriesPoint Argument="11/01/2007" Value="4169758" />
                            </dxc:SplineAreaFullStackedSeries2D.Points>
                            <dxc:SplineAreaFullStackedSeries2D.Label>
                                <dxc:SeriesLabel Visible="True" TextPattern="{}{VP:P0}"/>
                            </dxc:SplineAreaFullStackedSeries2D.Label>
                        </dxc:SplineAreaFullStackedSeries2D>
                        <dxc:SplineAreaFullStackedSeries2D DisplayName="Constellations">
                            <dxc:SplineAreaFullStackedSeries2D.Points>
                                <dxc:SeriesPoint Argument="11/01/1997" Value="391" />
                                <dxc:SeriesPoint Argument="11/01/1999" Value="4082" />
                                <dxc:SeriesPoint Argument="11/01/2001" Value="21932" />
                                <dxc:SeriesPoint Argument="11/01/2003" Value="64195" />
                                <dxc:SeriesPoint Argument="11/01/2005" Value="78473" />
                                <dxc:SeriesPoint Argument="11/01/2007" Value="101830" />
                            </dxc:SplineAreaFullStackedSeries2D.Points>
                            <dxc:SplineAreaFullStackedSeries2D.Label>
                                <dxc:SeriesLabel Visible="True" TextPattern="{}{VP:P0}"/>
                            </dxc:SplineAreaFullStackedSeries2D.Label>
                        </dxc:SplineAreaFullStackedSeries2D>
                        <dxc:SplineAreaFullStackedSeries2D DisplayName="MPP">
                            <dxc:SplineAreaFullStackedSeries2D.Points>
                                <dxc:SeriesPoint Argument="11/01/1997" Value="11994" />
                                <dxc:SeriesPoint Argument="11/01/1999" Value="38377" />
                                <dxc:SeriesPoint Argument="11/01/2001" Value="88395" />
                                <dxc:SeriesPoint Argument="11/01/2003" Value="200715" />
                                <dxc:SeriesPoint Argument="11/01/2005" Value="1107271" />
                                <dxc:SeriesPoint Argument="11/01/2007" Value="2694582" />
                            </dxc:SplineAreaFullStackedSeries2D.Points>
                            <dxc:SplineAreaFullStackedSeries2D.Label>
                                <dxc:SeriesLabel Visible="True" TextPattern="{}{VP:P0}"/>
                            </dxc:SplineAreaFullStackedSeries2D.Label>
                        </dxc:SplineAreaFullStackedSeries2D>
                        <dxc:SplineAreaFullStackedSeries2D  DisplayName="SMP">
                            <dxc:SplineAreaFullStackedSeries2D.Points>
                                <dxc:SeriesPoint Argument="11/01/1997" Value="4502" />
                                <dxc:SeriesPoint Argument="11/01/1999" Value="7518" />
                                <dxc:SeriesPoint Argument="11/01/2001" Value="5818" />
                                <dxc:SeriesPoint Argument="11/01/2003" Value="0" />
                            </dxc:SplineAreaFullStackedSeries2D.Points>
                            <dxc:SplineAreaFullStackedSeries2D.Label>
                                <dxc:SeriesLabel Visible="True" TextPattern="{}{VP:P0}"/>
                            </dxc:SplineAreaFullStackedSeries2D.Label>
                        </dxc:SplineAreaFullStackedSeries2D>
                    </dxc:XYDiagram2D.Series>
                    <dxc:XYDiagram2D.AxisY>
                        <dxc:AxisY2D>
                            <dxc:AxisY2D.WholeRange>
                                <dxc:Range MinValue="0" MaxValue="1" SideMarginsValue="0"/>
                            </dxc:AxisY2D.WholeRange>
                            <dxc:AxisY2D.Label>
                                <dxc:AxisLabel />
                            </dxc:AxisY2D.Label>
                            <dxc:AxisY2D.NumericOptions>
                                <dxc:NumericOptions Format="Percent" Precision="0" />
                            </dxc:AxisY2D.NumericOptions>
                        </dxc:AxisY2D>
                    </dxc:XYDiagram2D.AxisY>
                </dxc:XYDiagram2D>
            </dxc:ChartControl.Diagram>
            <dxc:ChartControl.Legend>
                <dxc:Legend HorizontalPosition="Right" VerticalPosition="TopOutside"
                            Orientation="Horizontal" />
            </dxc:ChartControl.Legend>
            <dxc:ChartControl.Titles>
                <dxc:Title Dock="Top" HorizontalAlignment="Center" Content="Architecture Share Over Time (GF)" />
            </dxc:ChartControl.Titles>
        </dxc:ChartControl>
    </Grid>
</Window>