RulerAppearance.AreaOpacity Property

Gets or sets the area ruler opacity.

Namespace: DevExpress.Xpf.Map

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

NuGet Package: DevExpress.Wpf.Map

Declaration

C#

public double AreaOpacity { get; set; }

VB.NET

Public Property AreaOpacity As Double

Property Value

Type	Description
Double	A value from 0 (transparent) to 1 (opaque).

Remarks

The following example creates an area ruler and uses an instance of the RulerAppearance class to specify the ruler’s fill color, opacity, outline color, and outline width:

C#

RulerAppearance rulerStyle = new RulerAppearance();
rulerStyle.AreaOpacity = 0.7;
rulerStyle.Fill = Brushes.CornflowerBlue;
rulerStyle.Stroke = Brushes.DarkBlue;
rulerStyle.StrokeStyle =new StrokeStyle() { Thickness = 3 };
MapRuler ruler = mapControl1.Measurements.CreateRuler(RulerType.Area, 
                                                      new List<CoordPoint>() { new GeoPoint(10, 0), 
                                                                               new GeoPoint(20, 0),
                                                                               new GeoPoint(20, 10)}, 
                                                      rulerStyle);

VB.NET

Dim rulerStyle As RulerAppearance = New RulerAppearance()
rulerStyle.AreaOpacity = 0.7
rulerStyle.Fill = Brushes.CornflowerBlue
rulerStyle.Stroke = Brushes.DarkBlue
rulerStyle.StrokeWidth = 3
rulerStyle.StrokeStyle = New StrokeStyle() With {
            .Thickness = 3
}

Dim ruler As MapRuler = mapControl1.Measurements.CreateRuler(RulerType.Area, 
                                                             New List(Of CoordPoint)() From { New GeoPoint(10, 0),
                                                                                              New GeoPoint(20, 0),
                                                                                              New GeoPoint(20, 10)},
                                                             rulerStyle)