I3DViewshed80

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 IAction80 representing the operation that takes place when the viewshed is clicked in the Project Tree.
	Attachment	An IAttachment80 representing the attachment behavior of the 3D viewshed.
	ClientData	Gets and sets an array of text strings assigned to each object global namespace. (Inherited from ITerraExplorerObject80)
	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 IColor80 representing the fill color of the areas that are not visible from the viewpoint.
	ID	Gets the ID of the object. (Inherited from ITerraExplorerObject80)
	Message	An IMessageObject80 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 ITerraExplorerObject80)
	Position	An IPosition80 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 IColor80 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 ITerraExplorerObject80)
	Terrain	An ITerrainObject80 representing terrain properties including draw order and ground object status. Note: The Terrain.Tint property does not apply to 3D viewsheds.
	TimeSpan	An ITimeSpan80 representing the timespan in which the viewshed is visible on the terrain.
	Tooltip	An ITooltip80 representing the tooltip that displays when a mouse cursor is placed over the 3D viewshed in the 3D Window.
	TreeItem	An ITreeItem80 representing details about the representation of the viewshed in the Project Tree.
	Visibility	An IVisibility80 representing the visibility of the viewshed at different distances.
	VisibleAreaColor	An IColor80 representing the fill color of the areas that are visible from the viewpoint.
	Methods
	GetParam	Reserved. Currently not used. (Inherited from ITerraExplorerObject80)
	SetParam	Reserved. Currently not used. (Inherited from ITerraExplorerObject80)