The lasso tool in mapping software allows users to draw polygons to outline specific areas on a map. To create a polygon, the user clicks and drags the cursor over their chosen location, and the software will capture the objects or data within that outlined area.
It provides a flexible way to define and manipulate spatial boundaries, making it useful in territory management and design tasks. The lasso tool's versatility makes it an ideal feature for users who need to interactively define irregular shapes on a map.