MapControl.ZoomToRegion(MapBounds, Boolean, Double) Method

Zooms the map to the specified region. Allows you to specify whether to use an integer zoom level.

Namespace: DevExpress.Xpf.Map

Assembly: DevExpress.Xpf.Map.v25.1.dll

NuGet Package: DevExpress.Wpf.Map

Declaration

C#

public void ZoomToRegion(
    MapBounds bounds,
    bool roundZoomLevel,
    double paddingFactor = 0.15
)

VB.NET

Public Sub ZoomToRegion(
    bounds As MapBounds,
    roundZoomLevel As Boolean,
    paddingFactor As Double = 0.15
)

Parameters

Name	Type	Description
bounds	MapBounds	The bounds that specify a map region to display.
roundZoomLevel	Boolean	Specifies whether to round the zoom level value.

Optional Parameters

Name	Type	Default	Description
paddingFactor	Double	0.15	Specifies the size of the border around displayed map items.

Remarks

The padding factor is applied to the larger dimension of the bounding box that contains visible items.

The following image shows an instance of a horizontal dimension that is larger than the vertical (“PF” means “Padding Factor” on images):

When the vertical dimension is larger than the horizontal, the zoom appears as follows:

Note that the padding factor is divided by two for each side of the region.

The following example zooms a map into a region, and applies an integer zoom level value:

C#

private void OnWindowLoaded(object sender, RoutedEventArgs e) {
    mapControl.ZoomToRegion(bounds: new MapBounds(new GeoPoint(51.30, 0.07), new GeoPoint(41.54, 12.3)), roundZoomLevel: true, paddingFactor: 0.15);
}

VB.NET

Private Sub OnWindowLoaded(ByVal sender As Object, ByVal e As RoutedEventArgs)
    mapControl.ZoomToRegion(bounds:=New MapBounds(New GeoPoint(51.30, 0.07), New GeoPoint(41.54, 12.3)), roundZoomLevel:=True, paddingFactor:=0.15)
End Sub