Default add() arguments to zero-width rects?

[mootari]

Flatbush is often used to index points, i.e., zero-width rectangles.

How do you feel about changing the signature of add to

add(minX, minY, maxX = minX, maxY = minY)

as a minor DX improvement for point indexing, so that repeating the coordinates can be avoided in this case?

[mootari]

Related: #33

[mourner]

Yeah, this makes sense! Let's make sure benchmarks don't show a regression (v8 can be weird sometimes) but if not, let's do it.

[paddymul]

I would like this feature too. I'm working to understand the RTree algorithm, and when the bounding rectangles are necessary for search vs the object stored. I added the #48 PR as a first step.

[paddymul]

Ahh. I think https://github.com/mourner/kdbush solves this usecase. @mourner Can you confirm? Thanks for the great work.