This .NET enum wraps the AcGe::ssiConfig ObjectARX enum. 

These values categorize the neighborhood of a surface just to the left or right of the surface/surface intersection curve with respect to the other surface. Inside (outside) means that the neighborhood is inside (outside) the other surface with respect to the surface normal orientation of the other surface. The surface neighborhoods left and right of a curve on a surface are with respect to its surface normal orientation and the direction of the curve parameterization.

Public Enum SurfaceSurfaceIntersectorConfiguration
  Unknown
  Out
  In
  Coincident
End Enum

public enum SurfaceSurfaceIntersectorConfiguration {
  Unknown,
  Out,
  In,
  Coincident
}