Multiple ring buffer for overlapping polygons.

AlishaD_Silva — Thu, 12 Nov 2020 14:40:18 GMT

Hello,

I am trying to create donut shaped buffers using the multiple ring buffer tool in ArcMap 10.8 for a set of overlapping polygons. Using the tool standalone produces multipart donuts with the attributes from the input polygons not getting carried over.

Hence, I tried 2 methods:

1. Access individual polygons, create the donuts and perform a spatial join to transfer the input polygon attributes onto the donuts.--> Results in almost correct attribute assignment except that it decides to skip assigning attributes to a few largest diameter donuts.

2. Access individual polygons, create donuts and use update cursor to assign the attributes. --> Results in correct attribute assignment but messes the donut shapes.

I have attached the 2 scripts. Could anyone please help me out in understanding why either of the above behaviors are occurring?

Thanks,

Alisha

Re: Multiple ring buffer for overlapping polygons.

AlishaD_Silva — Fri, 13 Nov 2020 14:21:47 GMT

Update: Adding an SQL query to the Join feature layer gives correct attribute assignment except for skipping just the first polygon.

topic Multiple ring buffer for overlapping polygons. in Geoprocessing Questions

Multiple ring buffer for overlapping polygons.

Re: Multiple ring buffer for overlapping polygons.