The function draws the defect projections in a 3d plot after spheroids3d
has been called.
drawProjection(E, conv = TRUE, np = 25)a list of ellipses (the projected particles)
logical, if conv=TRUE (default) the convex hull is drawn
number of points used for sampling the convex hull of projections
draw projections and the convex hull (if enabled) in a 3d plot return area of polygon and points of convex hull