Here's another option from Joshua Milligan, which leverage's Tableau's newly added support for SQL Server geospatial data types. It does require some SQL though: Draw circles with exact distance radius on maps in Tableau | VizPainter
Here's another option as well (though I haven't read it in detail so not sure how it works): https://www.crowdanalytix.com/communityBlog/customers-within-n-miles-radius-analysis-using-tableau
Thanks, Ken. I've looked at both of these pages before writing this post and, unfortunately, and neither make a ton of sense to me - I think Joshua's seems like it could work, but his instructions seem to require more background knowledge on SQL than I have.
If you or anyone have specific thoughts on how to apply radial circles to my workbook, let me know.
I tried manual process for my learning..
In this case, you need three layers of shape
1. custom SHP to show area range.
2. 0.25 Mile area
3. the stop ID
Up to two layers, we can use dual axis, but here, 2 and 3 needs to be plotted on same axis.
Add circle ID to plot 0.25 mile circle.
To Plot very small circle on center.,
Maybe better use line than polygon.
To get excel file I created.
Median HH Income - WIP_SM_v10.4.twbx 619.2 KB
This is incredible! Thank you so much for putting this together - I'm so impressed and really appreciate your clear step-by-step directions.
One last "pie in the sky" question. Do you know if there's a way that I could have the census block info for all census blocks in king county show up? I want to be able get the block info on any blocks that that radius circles cover; right now, the map only include census blocks where the bus stop point in located. Let me know - and thank you again for this wonderful tutorial.
I am not good at map and don't know very well.
But newer version allow something for sure.
And please mark my answer as correct to close the thread. not from inbox but from original post.
Median HH Income - WIP_SM_18.2.twbx 629.7 KB