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V24.1

MapControl.ZoomToRegion(CoordPoint, CoordPoint, Boolean, Double) Method

Zooms to the region by its top-left and bottom-right points, and specifies whether to apply an integer zoom level.

Namespace: DevExpress.Xpf.Map

Assembly: DevExpress.Xpf.Map.v24.1.dll

NuGet Package: DevExpress.Wpf.Map

Declaration

public void ZoomToRegion(
    CoordPoint p1,
    CoordPoint p2,
    bool roundZoomLevel,
    double paddingFactor = 0.15
)

Parameters

Name Type Description
p1 CoordPoint

The coordinate of the top-left region point.

p2 CoordPoint

The coordinate of the bottom-right region point.

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):

WpfMapControl_ZoomToFit_VerticalFitting

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

WpfMapControl_ZoomToFit_HorizontalFitting

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

The following code zooms the map in the specified region and applies an integer zoom level:

using DevExpress.Xpf.Map;
using System.Windows;

namespace MapApp {
    public partial class MainWindow : Window {
        private void OnWindowLoaded(object sender, RoutedEventArgs e) {
            mapControl.ZoomToRegion(p1: new GeoPoint(51.30, 0.07), p2: new GeoPoint(41.54, 12.3), roundZoomLevel: true, paddingFactor: 0.15);
        }
    }
}
See Also