基于c的kd-tree实现方法.zip
kdtree（kd-树）的mex库，它允许最近邻域，k最近邻域，范围等查询
kd-tree的简约实现。该实现既可以通过MEX调用在MATLAB内部使用，也可以直接从C / C ++程序中作为独立工具使用。网站上的图像已使用“ fulltest.m”创建。
此实现提供以下功能：
-kdtree_build：kd树构造O
-kdtree_delete：释放由kdtree分配的内存
-kdtree_nearest_neighbor：最近的邻居查询（一个或多个点）
-kdtree_k_nearest_neighbors：单个查询点的kNN
-kdtree_range_query：矩形范围查询
-kdtree_ball_query：查询距离某点有距离增量的样本
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