knn.h

/*
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#pragma once

#include <cugar/kd/kd_node.h>
#include <cugar/linalg/vector.h>
#include <cugar/linalg/bbox.h>
#include <cugar/basic/priority_queue.h>
#include <cugar/bintree/bintree_node.h>
#include <thrust/device_vector.h>

namespace cugar {
namespace cuda {

struct Kd_knn_result
{
    uint32 index;
    float  dist2;
};


template <uint32 DIM>
struct Kd_knn
{
    typedef Kd_knn_result Result;

    template <typename QueryIterator, typename PointIterator>
    void run(
        const QueryIterator             points_begin,
        const QueryIterator             points_end,
        const Kd_node*                  kd_nodes,
        const uint2*                    kd_ranges,
        const uint2*                    kd_leaves,
        const PointIterator             kd_points,
        Result*                         results);

    template <uint32 K, typename QueryIterator, typename PointIterator>
    void run(
        const QueryIterator             points_begin,
        const QueryIterator             points_end,
        const Kd_node*                  kd_nodes,
        const uint2*                    kd_ranges,
        const uint2*                    kd_leaves,
        const PointIterator             kd_points,
        Result*                         results);
};

} // namespace cuda
} // namespace cugar

#include <cugar/kd/cuda/knn_inline.h>