Information layer which allows virtualization of the information items depends on the geographical location and zoom factor. In contrast to the InformationLayer which process ALL items in collection this layer request items to process. It makes favor when thousands of items are available (pictures of POIs, for example). Customer application can select what pictures are suitable for given location and zoom factor and returns these ones only.

public class VirtualizationLayer : InformationLayer

Public Class VirtualizationLayer _
	Inherits InformationLayer