Extracting points from a table outside of a polygon

Question

This is probably a rookie question, but I have a polygon that represents a bunch of zip codes.  I have another table, call it the universe, that I want to extract records from that are up to 70 miles outside of the zip code polygon, not the center point, but 70 miles outside the polygon in any direction.  This will give me additional zip codes that are not contained in the polygon that are in a 70 mile radius.  Any help is appreciated!

thinton2024 · Answer

This looks like exactly what I needed, and no sample data was required ;)  - thank you @CharlieS!   In fact, your sample is what I am working with, the DFW area!  I will give it a shot.

CharlieS · Answer

Hi @thinton2024

The Buffer tool can be used to add area around a polygon in all directions. Use this on the original polygon and then a spatial process to cut the original polygon from that buffered version to create a "donut" spatial object.

https://help.alteryx.com/current/en/designer/tools/spatial/buffer-tool.html
https://help.alteryx.com/current/en/designer/tools/spatial/spatial-process-tool.html

You can use this "donut" spatial object in the Spatial Match tool to match against.

20240125-BufferDonut.yxmd

Qiu · Answer

@thinton2024 
It will be much better if you could share some sample input and desired output for us to better understand your question here.