2 Replies Latest reply on Jun 12, 2018 11:02 AM by Jim Dehner

    DMA boundaries using Lat long data

    Megha Bhatnagar

      Is it possible to get boundaries around DMA names? I am attaching a mock workbook.


        • 1. Re: DMA boundaries using Lat long data
          Don Wise

          Hi Megha,


          Lat/Lon will only give you "points" on a map, not boundaries.  You'll need polygon data (geometry) to get to the view you're looking for.  Polygons are a collection of points, with a particular path order (Path ID) to denote how the polygon should be drawn.


          Thx, Don

          • 2. Re: DMA boundaries using Lat long data
            Jim Dehner


            Don is right - the file you want is a shp (shape file) but DMA's are a nielsen thing and not readily available form sources like tiger or the census bureau -

            suggest you check on line and see if you can find a shape file for dma's (please let me know if you do) of if someone has a zip to dma cross reference - it wont be exact but close - you could bring that into tableau and convert it to a geo dimension based on zip

            good luck