ViewingMode

Purpose

Used to control if 3D camera is pointed toward center of the scene, or pointed at a Data Location within the scene.

Default Center where the user can rotate (DegreeOfRotation, ViewingHeight) and zoom (DxZoom) relative to the center of the scene. 

ViewingMode DataLocation the developer can select a Subset (ViewingSubset), Point(ViewingPoint) as the focal point related to rotation and zooming.

Or DataLocation can be set to focus on a specific X, Y, Z coordinate via .Net Pe3do.PeFunction.SetViewingAt or via ViewingAt DLL property.

The ViewingFrom property can control the location of the camera that points in direction of SetViewingAt or ViewingSubset / ViewingPoint.

Only applicable for RenderEngine = Direct3D. 

Possible values are:

3D Scientific Graph VCL Enumerations

eViewingModel = (tdCenter, tdDataLocation);

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