A fast, generic, and multi-dimensional Binary Search Tree written in C#.
Install via NuGet Package Manager Console:
PM> Install-Package KdTree
vartree=newKdTree<float,int>(2,newFloatMath());tree.Add(new[]{50.0f,80.0f},100);tree.Add(new[]{20.0f,10.0f},200);varnodes=tree.GetNearestNeighbours(new[]{30.0f,20.0f},1);