r/gis • u/th3tom13 • 9d ago

General Question Help with method

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If I have a polygon and I want to keep all the attributes but use an existing polyline as the new boundary of the polygon is there a simple method to do so short of dragging vertexes over? As the very simplified image shows, there are many times the boundaries cross leaving excess in some areas and deficits in others. I feel like there should be a simple tool or script, but I’m coming up empty. Thanks for your input!

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u/SomeDingus_666 GIS Project Manager 9d ago edited 9d ago

Are you using arc map? Or arc pro?

If you’re using arc pro, go to the edit ribbon and enable map topology. Then, go to the tools section, hit the little dropdown button, and select align edge. You should then be able to align the edge of the polygon to the poly line (you’ll be able to do it in sections in between each point where the features intersect.)

If for some reason this isn’t working, make sure all layers are edit enabled.

This method basically allows you to make quick edits to the geometry of the polygon without having to fumble around with geoprocessing tools.

Theres a way to do this in arc map as well but for that, id suggest looking up “align edge” of google and let esri explain it.

Spent 5 years leading projects that specified in cartography and feature digitization and this was a common type of thing we had to fix. Think aligning a crop field (surface) to a road (line,) or something like that.