Tracking the interference amongst various layers, in a multi-directional Solid Freeform Fabrication, is extremely important. The geodesic interference level is a common attribute of all the mutually interfering layers.
The algorithm for multi-directional deposition using geodesic interference level attribute was introduced by Rajeev Dwivedi and Radovan Kovacevic in 2005, at the Research Center for Advanced Manufacturing.
References
Interference geodesic level Wikipedia(Text) CC BY-SA