MapControl.ZoomToFitLayerItems(Double) Method

Zooms a map to fit items contained in all layers of the map.

Namespace: DevExpress.Xpf.Map

Assembly: DevExpress.Xpf.Map.v18.2.dll

Declaration

C#

public void ZoomToFitLayerItems(
    double paddingFactor = 0.15000000596046448
)

VB.NET

Public Sub ZoomToFitLayerItems(
    paddingFactor As Double = 0.15000000596046448
)

Optional Parameters

Name	Type	Default	Description
paddingFactor	Double	0.150000005960464	A Double object, which tunes the border size around visible map items.

Remarks

This method works as follows.

• Calculates a bounding box around map items contained in a maps’s layers.

  

• Zooms the map to fit the box. Note that the padding factor is applied to the larger dimension of the box.

  The following image shows an instance when the horizontal dimension larger than the vertical. (“PF” means “Padding Factor” on images)

  

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

  

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

In instance of the following code

C#

map.ZoomToFit(new LayerBase[] {vectorLayer}, 0.3);

VB.NET

map.ZoomToFit(New LayerBase() {vectorLayer}, 0.3)

the result should look like the following.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the ZoomToFitLayerItems(Double) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

VB.NET

how-to-provide-a-cartesian-vector-map-for-the-map-control-t233956/VB/CartesianMap/MainWindow.xaml.vb#L13

Private Sub VectorLayer_DataLoaded(ByVal sender As Object, ByVal e As DataLoadedEventArgs)
    mapControl.ZoomToFitLayerItems()
End Sub