I have been trying to wrap my head around this for the last little while on my own and have decided to finally come to the Tableau community for help (I suspect a mixture of pride and wanting to discover on my own has painstakenly delayed me from posting here )
BC Canada has administrative regions setup as regional districts within the province. I was able to find shape files from their statistics site:
http://www.bcstats.gov.bc.ca/StatisticsBySubject/Geography/TranslationsDataSets.aspx and primarily the CD_2011.zip regional districts file.
With these files I then followed Joe's Tutorial on how to prepare these shape files for Tableau (Which is amazing btw) (http://joemako.tumblr.com/post/3289363623/preprocess-shapefile-for-tableau-tutorial-video)
Everything seemed to work like a charm, however for some reason I can't seem to have these shape files "overlay" ontop of a world map. I suspect it has something to do with my Latitude and Longtitude showing values of 100K-1800K vs. the normal decimal numbers that I think Tableau normally works with.
I dont pretend to know very much about how the Geo "stuff" works and from my limited reading my only suspicion is the format the original shapefiles came in is different from what normal ones are? I noticed in Joe's video that the coordinates seemed far more standard vs. when I was using QGIS they were these very large numbers. I feel like I'm "almost" there, but am just not knowledgeable enough to get me all the way there If I can over come this, my next step would be to color code based on BC Regional district population data (which I've been able to find at: http://www.bcstats.gov.bc.ca/StatisticsBySubject/Demography/PopulationProjections.aspx) the crosstab I was able to work out for this is great.... but if I could put it on the map..... It'd be gravy!
Any help you guys could lend would be great! I've attached my post "Joe Tutorial" workbook and the shape files I used.