ArcGIS Pro 3.1 API Reference Guide
ArcGIS.Desktop.Mapping Namespace / MapView Class / MapToScreen Method
The point that represents coordinates in a map.
Example

In This Topic
    MapToScreen Method (MapView)
    In This Topic
    Converts a point in the coordinates of the map or scene to a point in screen coordinates. This method must be called on the MCT. Use QueuedTask.Run.
    Syntax
    public Point MapToScreen( 
       MapPoint mapPoint
    )
    Public Function MapToScreen( _
       ByVal mapPoint As MapPoint _
    ) As Point

    Parameters

    mapPoint
    The point that represents coordinates in a map.

    Return Value

    The converted point in screen coordinates.
    Exceptions
    ExceptionDescription
    This method or property must be called within the lambda passed to QueuedTask.Run.
    Example
    Calculate Selection tolerance in map units
    //Selection tolerance for the map in pixels
    var selectionTolerance = SelectionEnvironment.SelectionTolerance;
    QueuedTask.Run(() =>
    {
      //Get the map center
      var mapExtent = MapView.Active.Map.GetDefaultExtent();
      var mapPoint = mapExtent.Center;
      //Map center as screen point
      var screenPoint = MapView.Active.MapToScreen(mapPoint);
      //Add selection tolerance pixels to get a "radius".
      var radiusScreenPoint = new System.Windows.Point((screenPoint.X + selectionTolerance), screenPoint.Y);
      var radiusMapPoint = MapView.Active.ScreenToMap(radiusScreenPoint);
      //Calculate the selection tolerance distance in map uints.
      var searchRadius = GeometryEngine.Instance.Distance(mapPoint, radiusMapPoint);
    });
    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3.0 or higher.
    See Also