lwkmeans_pt_closest()

static int lwkmeans_pt_closest ( const Pointer *  objs, size_t  num_objs, const Pointer  a  )

static

Definition at line 19 of file lwkmeans.c.

References lwkmeans_pt_distance().

Referenced by lwgeom_cluster_2d_kmeans().

{
        int i;
        double d;
        double d_closest = FLT_MAX;
        int closest = -1;

        assert(num_objs > 0);

        for (i = 0; i < num_objs; i++)
        {
                /* Skip nulls/empties */
                if (!objs[i])
                        continue;

                d = lwkmeans_pt_distance(objs[i], a);
                if (d < d_closest)
                {
                        d_closest = d;
                        closest = i;
                }
        }

        return closest;
}

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