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How to make a polygon to match a feature?
Click the Straight Segment construction method on the Editor toolbar. Click inside the polygon and digitize between the polygon and line. Snap to the line and click it once. Do not finish the sketch.
You can use the Auto-Complete construction tools when creating new polygons to help ensure that your data forms a continuous fabric. The new polygon can share a border with one or more existing polygons, although the polygons must all be from the same layer as the new feature you are creating.
What happens when you edit the edge of a polygon?
Now the Vertex will have moved, and the POLYGON that it is part of will be re-shaped. Note that by editing one polygon’s edge, you have created a GAP, or an OVERLAP, when compared to the boundary of the ADJACENT POLYGON! This “gap” or “sliver” will cause topological errors.
Which is a common polygon editing task in ArcGIS?
Common polygon editing tasks. For example, if you have a parcels layer, you can combine its features to create a subdivisions layer. You can merge two or more polygon features in the same layer to create a new polygon feature. If you have two or more polygon layers, you can aggregate them into one layer.
How to change the shape of a polygon?
Click Trace on the Editor toolbar palette. Click the line or polygon edge you want to use to update the shape of the original polygon and trace along it. If you want to add an offset, right-click, click Trace Options, and enter an offset value.
What’s the best way to split a polygon?
If you have a line feature that crosses a polygon, you can use the line to split the polygon, for example, if you want to divide an administrative boundary at a road or river. If you have an ArcEditor or ArcInfo license, you can use the Construct Features command. Select the line feature or features you want to use to split the polygon.
When to use ArcGIS to align polygons?
For example, you have a polygon layer representing land uses and find that some of the polygons need to be modified to make their boundaries align. This tool is particularly helpful when you are working with polygons that contain gaps.