Unary predicates for overlapped points

It seems like the all unary predicates are related to Polygon. I think it might be a good idea to add one that tests if there is any (partly) overlapped point, like a unary predicate version of geom_almost_equals or something. I know .duplicated() won’t work, so in the meantime is there a workaround?

[jorisvandenbossche]

Possible options are calculating the distance between the points and setting a distance limit yourself, or you could use geom_equals_exact which takes a tolerance argument.

[StevenLi-DS]

@jorisvandenbossche This makes sense. Then is there any way to tell if two points are very very close? Create a buffer around each point and use geom_almost_equals?