Construct polygons from features

Available with Standard or Advanced license.

The Construct Polygons tool creates a polygon feature for each closed boundary formed by selected line and polygon features. The polygons are constructed over the selected features on a layer of your choosing. This tool is available in the Modify Features pane.

The cluster tolerance determines whether the selected geometry forms a boundary. The default x,y tolerance is 0.001 meters or its equivalent in feature units. For most cases, using the default tolerance is the best practice.

Caution:

Increasing the cluster tolerance can potentially reduce the spatial accuracy of your results and distort the new polygons.

To construct polygons from selected features, complete the following steps:

1. If the current map does not contain a polygon feature layer, add it.
   1. On the ribbon, click the View tab. Click Catalog Pane , and expand Databases .
   2. Expand the default database or the database containing your data.

      To create a polygon feature class, right-click the database, click New, and click Feature Class.

   3. Drag the feature class onto the map.

      A feature template with default settings is automatically generated for the new layer.

2. On the ribbon, click the Edit tab. In the Features group, click Modify .
3. In the tool pane, expand Construct and click Construct Polygons .
4. Click the Select tool and select the features. You can select one or more line or polygon features.
   • To refine the selection, right-click a feature in the tree view, and click Unselect or Only Select This .

     

5. Click the Template arrow and specify the layer on which to construct the polygons.

   The feature template specifies the layer and the attribute values assigned to each new polygon.

6. To change the default tolerance, click the Cluster Tolerance box and type the value.
7. Check or uncheck Use existing features in target.

   Checked	Include features on the destination layer as input for determining the boundaries of the new polygons.
   Unchecked	Construct polygons using only the boundaries of the selected features.

8. Click Construct.