What does "Covers(b,a)" indicate in terms of spatial relationships?

The term "Covers(b,a)" in the context of spatial relationships indicates that feature b completely encompasses feature a. This means that every point or location that makes up feature a is included within the boundaries of feature b, while feature b may extend beyond the limits of feature a.

In spatial data analysis, this relationship is crucial for understanding how different features interact with one another. By recognizing that "Covers(b,a)" signifies that b contains all points of a, it becomes clear how geospatial entities can be represented in a hierarchical or overlay context, where one feature serves as a broader container for another.

This understanding is fundamental when working with geographic information systems and conducting spatial queries, as it affects how data is visualized and analyzed in relation to different features on a map.