topic Code for Finding What at the top, bottom, left and right of Polyon in ArcGIS Pro Questions

Code for Finding What at the top, bottom, left and right of Polyon

Bilal_Alam_GIS — Mon, 20 Jun 2022 11:02:00 GMT

Dear All,

I have polygon with id I want to find what is the id in the adjacent parcels e.g a polygon has ID 1, ID of polygon to its left is 8 and Right is 2 top no polygon and bottom have 5 as shown in image

Thanks

Re: Code for Finding What at the top, bottom, left and right of Polyon

AndyAnderson — Mon, 20 Jun 2022 14:32:03 GMT

Use the tool Generate Near Table:

https://pro.arcgis.com/en/pro-app/2.8/tool-reference/analysis/generate-near-table.htm

The default behavior should include all adjacent or overlapping polygons, and if you include the parameter argument angle = 'ANGLE', the table will include an angle which you can use to determine direction.

If there are gaps, however, you won’t be able to use the default option Closest but should set the parameter argument search_radius to be somewhat greater than zero.

— Andy

Re: Code for Finding What at the top, bottom, left and right of Polyon

Bilal_Alam_GIS — Tue, 21 Jun 2022 07:28:46 GMT

Thanks @AndyAnderson for your help. I get the result by using Calculate adjacent field tool.

https://pro.arcgis.com/en/pro-app/2.8/tool-reference/cartography/calculate-adjacent-fields.htm

Thanks and Regards

Re: Code for Finding What at the top, bottom, left and right of Polyon

AndyAnderson — Tue, 21 Jun 2022 11:35:58 GMT

That’s cool, wouldn’t expect to find that in the Cartography tool box. One caveat, though, it doesn’t appear that it will find every adjacent polygon, and a given polygon might be listed more than once.

— Andy