GeoUtils.CalculateStrokeLength(MapShape) Method

Returns the map shape’s stroke length in meters.

Namespace: DevExpress.XtraMap

Assembly: DevExpress.XtraMap.v19.1.dll

Declaration

C#

public static double CalculateStrokeLength(
    MapShape shape
)

VB.NET

Public Shared Function CalculateStrokeLength(
    shape As MapShape
) As Double

Parameters

Name	Type	Description
shape	MapShape	The map shape whose stroke length should be calculated.

Returns

Type	Description
Double	The map shape stroke length in meters.

Remarks

You can use the CalculateStrokeLength method to determine the stroke length of the following vector items:

• MapEllipse
• MapLine
• MapPath
• MapPolygon
• MapPolyline
• MapRectangle

The following code computes a selected map item’s stroke length.

C#

private void mapControl_SelectionChanged(object sender, MapSelectionChangedEventArgs e) {
    MapShape mapShape = vectorItemsLayer.SelectedItem as MapShape;
    double strokeLength = GeoUtils.CalculateStrokeLength(mapShape);           
    label.Text = $"StokeLength: {strokeLength / 1000:F2} km";
}

VB.NET

Private Sub mapControl_SelectionChanged(ByVal sender As Object, ByVal e As MapSelectionChangedEventArgs)
    Dim mapShape As MapShape = TryCast(vectorItemsLayer.SelectedItem, MapShape)
    Dim strokeLength As Double = GeoUtils.CalculateStrokeLength(mapShape)
    label.Text = $"StokeLength: {strokeLength / 1000} km"
End Sub