damping -- amount of beam slope damping. (int)
should beam slope be damped? 0: no, 1: yes, 100000: horizontal beams
+
+
+ molecule-callback --
+
+ beam-thickness -- weight of beams, in staffspace
+
+ beam-space-function -- function of type multiplicity -> real (in staffspace)
+
+ default-neutral-direction -- which direction to choose if we're in
+ the middle of the staff
+
+ after-line-breaking-callback --
+
+ damping -- damping factor (real).
+
+
*/
class Beam
{