Coverage operations

coverage_invalid_edges(geometry[, gap_width])	Verify if a coverage is valid and return invalid edges.
coverage_is_valid(geometry[, gap_width])	Verify if a coverage is valid.
coverage_simplify(geometry, tolerance, *[, ...])	Return a simplified version of an input geometry using coverage simplification.
coverage_union(a, b, **kwargs)	Merge multiple polygons into one.
coverage_union_all(geometries[, axis])	Return the union of multiple polygons of a geometry collection.