how can i measure lots edges length in CGA ?

[Mohammadbabaei]

Hello

i want to measure edges or a line's length with CGA grammar 

the solution i thought was comp the vertexes and get position then use distance formula , but the problem is i cannot have 2 points position in 1 tree to use formula .

I tried to set attr but it returns empty value in other leafs when i want to use 

[LR]

Try comp(e){all: print (scope.sx)}.

[Mohammadbabaei]

wow tanx it simply worked