I have 2 lines in 1st line there will be different height with every node and i want to move 2nd line with reference 1st line and 2nd line height to be varied for nearby nodes with reference line

@pranneshgeo, do the nodes have height values tagged to them? the Z offset need not be a constant value. It can be an attribute as well or even an expression

HTH

Happy FME-ing :-)

SRG

You need to do the height reference to the vertices. (if I understand the question right)

Either extract the vertices, find nearby reference, affine/adapt z value and rebuild line.

Or do it to its coordinates without rebuilding (manipulate geometry string), more difficult though.