I3DViewshed66

This interface provides properties and methods for calculating and creating a graphical representation of the area on the terrain and on 3D models and objects that is visible from a specified position.

	Properties
	Action	An IAction66 representing the operation that takes place when the viewshed is clicked in the Project Tree.
	Attachment	An IAttachment66 representing the attachment behavior of the 3D viewshed.
	ClientData	Gets and sets an array of text strings assigned to each object global namespace. C# exposes this property as get_ClientData and set_ClientData (Inherited from ITerraExplorerObject66)
	Distance	Gets and sets the distance, in meters, between the viewshed analysis and the viewer.
	FieldOfViewX	Gets and sets the horizontal angle limits, in degrees, of the viewshed.
	FieldOfViewY	Gets and sets the vertical angle limits, in degrees, of the viewshed.
	HiddenAreaColor	An IColor66 representing the fill color of the areas that are not visible from the viewpoint.
	ID	Gets the ID of the object. (Inherited from ITerraExplorerObject66)
	Message	An IMessageObject66 representing the message object assigned to the object.
	ObjectType	Gets an enum that identifies the type of the object representing the viewshed on the terrain. (Inherited from ITerraExplorerObject66)
	Position	An IPosition66 that defines the position and orientation of the viewshed on the terrain, as well as the distance from which it is viewed when flying to it (or circling it, for example).
	Quality	Gets and sets an enum that determines the accuracy level of the viewshed.
	RayColor	An IColor66 representing the color of the rays (lines of sight) in the viewshed area sector.
	RefreshRate	Gets and sets an enum that determines the refresh rate of the viewshed.
	SaveInFlyFile	Gets and sets a Boolean that determines whether the viewshed is saved in the Fly file. (Inherited from ITerraExplorerObject66)
	Terrain	An ITerrainObject66 representing terrain properties including draw order and ground object status. Note: The Terrain.Tint property does not apply to 3D viewsheds.
	TimeSpan	An ITimeSpan66 representing the timespan in which the viewshed is visible on the terrain.
	Tooltip	An ITooltip66 representing the tooltip that displays when a mouse cursor is placed over the 3D viewshed in the 3D Window.
	TreeItem	An ITreeItem66 representing details about the representation of the viewshed in the Project Tree.
	Visibility	An IVisibility66 representing the visibility of the viewshed at different distances, as well as visibility of the viewshed in TerraExplorer Basic Viewer.
	VisibleAreaColor	An IColor66 representing the fill color of the areas that are visible from the viewpoint.
	Methods
	GetParam	Reserved. Currently not used. (Inherited from ITerraExplorerObject66)
	SetParam	Reserved. Currently not used. (Inherited from ITerraExplorerObject66)