Implementation of Volume-interacting Level-Set DEM or VLS-DEM (1/3)
Hi all!
This is the first of several merge requests implementing volume-based interactions for level-set particles. Full detail can be found in this publication and the associated supplementary information.
This merge request in particular:
- Reference added to YADE doc
- Level set particle properties for axis-aligned bounding ellipsoids (AABEs). These are necessary to improve the computation speed of the volume interactions.
- Two additional functions, not restricted to the level set grid, to get the normal and distance of the level set. This is needed for particle-wall interactions.