I would suggest you start with the following discussion which will walk you step-by-step through the process of creating a radial filter. Best way to learn Tableau is by doing!
If this resolves your question, please mark this response as correct so that others may find it useful in the future. Thx, Don
This is the calculation that I use for distance in my mapping. Maybe this can help you. It is available in several threads.
SIN(RADIANS([LATITUDE]) ) * SIN( RADIANS([LATITUDE]) )+
COS( RADIANS([LATITUDE) ) * COS( RADIANS([LATITUDE) ) *
COS( RADIANS([LONGITUDE]) ) - RADIANS([LONGITUDE))
Hi Don, Thank you very much.
I followed the steps and it works perfect. However, as shown in the attached map I have several center points (25+). I really do not understand how to use all cities and find the distance to adjacent points.
Is there any way I can put a circle with 100 miles radius on each center points I have?
Thanks, and this formula works perfect!
But my problem is having several center points in my map. Not sure how to combine them yet.
Take a look at my biz of BMV location on Tableau Public. All you need to do this is in that biz. Just search for Tim Dines.
Sent from the iPhone of Timothy Dines.
Joshua Milligan Thank you! I am a newbie in data viz and SQL. Is there any resource I can use if I do not have a SQL database? Is it a must to create the circle shapefile in a SQL database?