Generates the smallest convex polygon that completely encloses a selected set of geometries. This operation is useful for creating bounding areas, simplifying complex datasets, and performing spatial analysis. The resulting shape forms the minimal convex envelope around the input features, ensuring optimal coverage with minimal boundary length..

The SPMCONVEXHULL command creates the convex hull (convex envelope) of selected entities - the smallest convex polygon that contains all selected features.

Convex Hull Options

• Source: select the entities to create the convex hull around (review selection control options).
• Options
  • Layer/Table name: specify the layer where the created polygons will be placed and the table name for attached data.
  • Apply random colors to new layers: if checked, the created layers will be assigned random colors.
  • Create: borders (closed polylines) or polygons.
  • Fill with hatches/polygons: the resulting closed polylines can be filled with hatches, and the resulting closed polygons can be filled with fill options.

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Convex Hull video