Scale Bar Calculation

[metehaansever]

Hello,

I am trying to use scale bar for newick trees. I use ete3 and scale bar only works when we use treestyle and QT. Is there another way to calculate? Also I realize ete3 documentation and etetoolkit shows different values for same tree. I use http://etetoolkit.org/treeview/ and this is my tree: ((((a1,a2),a3), ((b1,b2),(b3,b4))), ((c1,c2),c3));