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how can i measure lots edges length in CGA ?

Question asked by mbabaei_gd on Feb 12, 2017
Latest reply on Feb 14, 2017 by mbabaei_gd


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