# Convex Hull

Returns a geometry object which represents a convex hull around the input geometry. A convex hull operation is similar to stretching a rubber band around a shape.

Note: If you want to perform a convex hull operation with multiple unconnected shapes (as shown in the diagram above), first use the Spatial Union stage to generate a union, then send that geometry to the Spatial Calculator stage to perform the convex hull operation.

Option Name | Description |
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Geometry field (under "Input field") | The input field that contains the geometries that you want to wrap in a convex hull operation. This field also accepts geometries that are generated by stages in the Enterprise Routing Module, such as a LineString or Polygon. |

Geometry field (under "Output field") | The output field that you want to contain the geometry returned by Spatial Calculator. |