– Clump = 0 : No clumping
– Clump = 1 : The children meet at the parent’s tip
– Clump = -1 : The children start together at the parent’s root
– In this example the parent is the red one, children are green
– Another example, see how the childrens start together at the parent’s root for Clump = -1
– Another example for two different values of Clump, see how the children don’t fully reach the parent’s tip or root.