graphICs
graphICs is a converter transforming GDS II-data to Asymptote-code
...To create graphic or PDF-files you need to download Asymptote from asymptote.sourceforge.net.
Look at http://sourceforge.net/p/graphicsic/wiki/Usage/ for the Usage.
You can download the actual version of graphICs, an example MAP-file and the Bachelor-Thesis about graphICs on the download page.