opacity [0,1]
angle of selection (radians)
Optionalasif true, outline is dashed
Optionalcolouroutline colour
default colour
if true, not moveable
identity
Protectedinvname
start (or centre) point coordinate
ProtectedtransformVector3 copy of start coordinate
retrieve points
callback for drag handle movements
Optionald: booleanset start
string representation
StaticcreateStaticis
Superclass for all orientable selections