ArcGIS Pro 3.1 API Reference Guide
ArcGIS.Desktop.Mapping Namespace / MappingExtensions Class / UpdateOverlay Method / UpdateOverlay(MapView,IDisposable,CIMGraphic,Double,Double) Method
The view containing the overlay.
The IDisposable instance returned from an AddOverlay method call.
The graphic to be used for the update
Map reference scale or -1
Visibility factor for showing the overlay through other objects when obscured in 3D.
Valid range is [0..1], any other value will be treated as 0 (not visible).

In This Topic
    UpdateOverlay(MapView,IDisposable,CIMGraphic,Double,Double) Method
    In This Topic
    Updates the graphic for an overlay graphic on the map view.
    Syntax
    Public Overloads Shared Function UpdateOverlay( _
       ByVal mapView As MapView, _
       ByVal disposable As IDisposable, _
       ByVal graphic As CIMGraphic, _
       ByVal referenceScale As Double, _
       ByVal showThrough As Double _
    ) As Boolean

    Parameters

    mapView
    The view containing the overlay.
    disposable
    The IDisposable instance returned from an AddOverlay method call.
    graphic
    The graphic to be used for the update
    referenceScale
    Map reference scale or -1
    showThrough
    Visibility factor for showing the overlay through other objects when obscured in 3D.
    Valid range is [0..1], any other value will be treated as 0 (not visible).

    Return Value

    True if the overlay was updated. False otherwise.
    Remarks
    When the referenceScale is not equal to -1, the overlay will be created in real world units relative to the provided map reference scale (referenceScale). Otherwise, the overlay will be created in units of points. This is only supported in 2D.
    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3.1 or higher.
    See Also