Seeing weird remove behavior #21
Description
Not exactly sure if this is a bug or if I'm doing something wrong:
const d3Quadtree = require("d3-quadtree")
const tree = d3Quadtree.quadtree().x(d => d.x).y(d => d.y);
tree.add({ x: 681, y: 86, width: 12, height: 12 })
tree.add({ x: 713, y: 52, width: 12, height: 12 })
tree.add({ x: 470, y: 103, width: 12, height: 12 })
tree.add({ x: 745, y: 188, width: 12, height: 12 })
tree.add({ x: 671, y: 144, width: 12, height: 12 })
tree.add({ x: 724, y: 128, width: 12, height: 12 })
tree.add({ x: 798, y: 179, width: 12, height: 12 })
tree.add({ x: 671, y: 200, width: 12, height: 12 })
tree.add({ x: 766, y: 221, width: 12, height: 12 })
const find = tree.find(745, 188, 12)
tree.remove(find)
tree.find(745, 188, 12)
Running the above code snippet in https://npm.runkit.com/d3-quadtree causes tree.remove(find) to not properly remove the found data point.
Even weirder: commenting out any one of the 3 lines above the add for coord 745,188 causes the remove to function correctly. (i.e. commenting out tree.add({ x: 681, y: 86, width: 12, height: 12 }))
The only thing that I could determine was different between commenting out one of the top 3 add lines versus not was that the quadtree y0 point was negative, but this is maybe a red herring.