Which is the intersection difference between two sets of geometries?
The intersection, difference or symmetric difference between two sets of geometries. The returned object has the same class as that of the first argument ( x) with the non-empty geometries resulting from applying the operation to all geometry pairs in x and y. In case x is of class sf, the matching attributes of the original object (s) are added.
How to snap the vertices of a geometry?
The st_difference.sfc method with a single argument returns an object with an “idx” attribute with the orginal index for returned geometries. st_snap snaps the vertices and segments of a geometry to another geometry’s vertices.
What happens when Y contains more than one geometry?
If y contains more than one geometry, its geometries are merged into a collection before snapping to that collection. (from the GEOS docs:) “A snap distance tolerance is used to control where snapping is performed.
How to find pairs of simple feature geometries?
To find whether pairs of simple feature geometries intersect, use the function st_intersects instead of st_intersection. st_union for the union of simple features collections; intersect and setdiff for the base R set operations. summary ( lengths ( st_overlaps (s, s))) # includes self-counts!
Which is the symmetric difference of two arrays?
Symmetric difference of two array is the all array elements of both array except the elements that are presents in both array. SymmDiff = (arr1 – arr2) UNION (arr12 – arr2). OR SymmDiff = (arr1 UNION arr2) – (arr1 INTERSECTION arr2).
How to calculate the difference between two sets of geometry?
The intersection, difference or symmetric difference between two sets of geometries. The returned object has the same class as that of the first argument (x) with the non-empty geometries resulting from applying the operation to all geometry pairs in x and y. In case x is of class sf, the matching attributes of the original object (s) are added.