I have some regional maps from an open data directory (electoral districts; Barcelona, Spain; link). They are DWG or DGN shapes and polygons
I have found an online tool to convert these files to KML/KMZ files (link).
So, what I don't know is how to fit these shapes in the coordinates of the region. In other words, how to georeference them.
What I want is to import these georeferenced shapes into Google Earth, as a first step to work with them in a Fusion Tables (tool I'm familiar with)
I'm a 'new' journalist, working with a Mac, used to work with designed tools as Illustrator. Familiar with Fusion Tables. I don't have Autocad.