Which two snap agents can be specified using the Snapping menu in GIS?

Intersection snapping and Midpoint snapping are fundamental snap agents utilized in GIS to enhance precision during digitizing and editing geometries.

Intersection snapping ensures that features being drawn or edited align exactly at their intersecting points. This is particularly useful when working with road networks, streams, or other linear features that must meet at precise junctions. By snapping to intersections, users can maintain spatial integrity and ensure that connections between different features are accurately represented.

Midpoint snapping, on the other hand, focuses on the midpoint of lines or features. When creating a new line or point, GIS software will automatically offer a snap to the midpoint of existing lines. This functionality is especially valuable for creating parallel roads or aligning features symmetrically, permitting efficient and accurate map-making.

Other options listed may also include valid snap agents, but they do not combine the specific advantages of intersection and midpoint snapping tailored for effective feature alignment. This positions intersection and midpoint snapping as particularly vital tools in the GIS toolbox for ensuring spatial accuracy and enhancing the geometric fidelity of the map.