quadtree

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Hi, thanks for the quadtree codes and it’s very fast for many points query. However I wrote a simple program, and found the `qtree.KNearest` didn’t return in dist order: ```go...

ringsaturn

.depth is never updated

1

I noticed that QuadTree.depth is never updated. So MaxDepth never comes in to play. QuadTree.divide() simply sets the new depths to the same as the parent: `qt.nodes[0] = New(bb, qt.depth,...

flat20