Shifting lines to a configurable offset

Discussion created by klim_c on May 25, 2011
I would appreciate it very much if some one gives me a clue to solve the problem.
I have to create a tool or script which will shift line gometry to some offset. F.e., freeway line should be shifted to indicate both directions. The line is a shape, and it is composed by set of links. The result must be saved as a separate shape.
Thank you.