Hello community...

I am trying to use a bitmap image as a map source.  The reason a custom image is required for the map image is that the development does not yet exist.  The custom background image is a representation of what the development will look like in the future.  The site is quite large and the intent is to have Tableau plot points on this map image which represent the object's location relative to the map.

Using      X - Left, Right and

               Y - Bottom, Top...

I am using relative Decimal Degree Lat, Long values (relative to the data source fields).  Tableau seems to accept these values, but when I attempt to plot them, I simply get a plot graph instead of the background image. 

Does anyone have any idea of how I could get this to work?