idea Allow Polylines to Polygons to maintain some attributes in ArcGIS Pro Ideas

Allow Polylines to Polygons to maintain some attributes

HeatherAlexander — Mon, 24 Nov 2025 16:44:52 GMT

I want to be able to convert contour lines created from LiDAR data to Polygons with the Elevation intact. I used to be able to complete this with the feature to polygon tool but this no longer maintains the elevation information that I need. The work around for this is much longer and introduces more chances for the wrong elevation to be used.

Re: Allow Polylines to Polygons to maintain some attributes - Status changed to: Under Consideration

DrewFlater — Fri, 19 Dec 2025 17:52:17 GMT

Hi @HeatherAlexander

The Contour tool in ArcGIS Pro provides a Contour Type parameter to create polygons (filled contour lines) directly.

https://pro.arcgis.com/en/pro-app/latest/tool-reference/spatial-analyst/contour.htm

Can you explain how this may not match your request?

About Feature To Polygon, it is true that this tool does not maintain attribute information without post processing, and we are working on an enhancement to resolve that, ENH-000132387.

Re: Allow Polylines to Polygons to maintain some attributes

DanLee — Fri, 23 Jan 2026 23:29:41 GMT

Hello @HeatherAlexander

Would it be possible for you to share some sample data - the contour lines created from LiDAR data with the Elevation intact? When we make the enhancement, I'd like to make sure it works for your data.

Thanks!

Dan

Re: Allow Polylines to Polygons to maintain some attributes - Status changed to: In Product Plan

MargaretCrawford — Mon, 13 Apr 2026 20:36:00 GMT

In ArcGIS Pro 3.7, the Feature to Polygon tool has a new Polygon Construction Source parameter which supports constructing polygons per enclosed area or per enclosed line. When polygons are constructed from enclosed input lines, the attributes from the input will transfer to the output.

Re: Allow Polylines to Polygons to maintain some attributes

DanLee — Mon, 13 Apr 2026 21:56:44 GMT

Here is a simple illustration of the new parameter in Feature To Polygon tool. On the left below is the default option, which is how the tool has worked for decades. On the right is the new option which makes a polygon from each individual enclosed line regardless of their crossing each other; the output polygon will carry all input line attributes. Hope this will help shorten your workflows. 🙂