IFitIntoViewCameraFitIntoView(IListVisual3D, FitIntoViewType, Boolean, Double, Boolean) Method

bool FitIntoView(
	IList<Visual3D> visuals,
	FitIntoViewType fitIntoViewType = FitIntoViewType.CheckAllPositions,
	bool adjustTargetPosition = true,
	double adjustmentFactor = 1,
	bool waitUntilCameraIsValid = true
)

Parameters

visuals  IListVisual3D

IList of Visual3D objects that will be checked

fitIntoViewType  FitIntoViewType  (Optional)

type of check (default value is CheckAllPositions)

adjustTargetPosition  Boolean  (Optional)

true if the TargetPosition is adjusted; false if TargetPosition is preserved (default value is true)

adjustmentFactor  Double  (Optional)

factor that is multiplied by the calculated Distance or CameraWidth. Can be used to add margin to the bounds - for example value 1.1 would add 10% margin. Default value is 1.0 (no margin).

waitUntilCameraIsValid  Boolean  (Optional)

when true (by default) and if the camera is not valid (for example because the Viewport3D size is not defined yet), then the FitIntoView will be called when the camera becomes valid. When false, then FitIntoView is called only if camera is currently valid. See return value for info if camera was changed.

Return Value

FitIntoView adjusts the camera's Distance (for PerspectiveCamera) or CameraWidth (for OrthographicCamera) and TargetPosition (if adjustTargetPosition is true) so that all the objects on defined in list of Visual3D objects will be visible from one edge of the viewport to another edge.

When fitIntoViewType is set to the CheckAllPositions, then the method checks each position of the objects defined with a list of Visual3D objects. This is more precise than CheckBounds but can take much longer when there are objects with a lot of position in the scene. In this cases it is recommended to use the CheckBounds settings.

The adjustmentFactor parameter can be used to set the margin around the scene objects. Its value is multiplied by the calculated Distance or CameraWidth. For example value 1.1 would add 10% margin around scene objects.

When using OrthographicCamera, the returned CameraWidth and the new TargetPosition will exactly position the object to the bounds of the Viewport3D. When using PerspectiveCamera there might be some smaller margins (empty space) on one or the other side of the Viewport3D.

To get the calculated Distance or CameraWidth and new TargetPosition without changing the current camera, you can use the GetFitIntoViewDistanceOrCameraWidth(IListVisual3D, FitIntoViewType, Boolean, Point3D) method.

Reference