Next we will consider how to extend Tableau's mapping capabilities with other tools. Tableau developers were careful to create a mapping interface that is readily extensible. Some areas of this extensibility, such as connecting to a Web Map Service (WMS) Server, are available directly from the interface. Other areas require delving into the rarely-explored Tile Map Service (TMS) file. And still others require the author to provide latitude and longitude points – perhaps millions of points – to create complicated polygons on a map or background image.





















































