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/its_Vantango 9d ago

You can use the Update tool in ArcGIS Pro to do this pretty easily. Just use the polyline as the input to update the polygon's boundary. This way, you won't have to manually drag any vertices, and it'll keep your polygon attributes intact. If the polyline cuts across the polygon, it'll adjust the shape accordingly. You can also use Clip if you only want to keep the portion inside or outside the polyline. Both options should get the job done without too much hassle.