topic How to split a polygon that intersects a line in ArcGIS Pro Questions

How to split a polygon that intersects a line

SanchezNuñez — Thu, 27 Feb 2025 17:25:47 GMT

Good afternoon,

I am looking for a way to split a polygon (a circle buffer) that intersects a line (a major road) and remove the part is outside, or on the other side of the road.

Any sample in ArcPy and Python?

Thanks

Re: How to split a polygon that intersects a line

clt_cabq — Thu, 27 Feb 2025 18:49:25 GMT

Use the split tool from the editor Modify tool bar - you can use a line you construct, snapped to your road, or select the road centerline and use that to split your polygon.

Re: How to split a polygon that intersects a line

JMutunga — Fri, 28 Feb 2025 01:18:48 GMT

@SanchezNuñez can you also try the 'Preserve' method for Clip tool?

Re: How to split a polygon that intersects a line

JoseSanchez — Fri, 28 Feb 2025 14:43:59 GMT

Thank you @clt_cabq

I am looking for a geoprocessing tool, I do have more that 44,00 circles to process.

Re: How to split a polygon that intersects a line

JoseSanchez — Mon, 03 Mar 2025 12:33:48 GMT

Godo morning,

This is how I did it:

Create 500 feet buffer
dissolve line layer by street class
for each 500 feet budder
- create a 50 feet buffer
- clip line layer
- feature to poly to split 500 feet buffer at the line intersection
- remove poly that is not intersecting the point