PostGIS  2.3.7dev-r@@SVN_REVISION@@
static double box2df_distance_leaf_centroid ( const BOX2DF *  a,
const BOX2DF *  b 
)
static

Calculate the centroid->centroid distance between the boxes.

Definition at line 400 of file gserialized_gist_2d.c.

Referenced by gserialized_distance_centroid_2d(), and gserialized_gist_distance_2d().

401 {
402  /* The centroid->centroid distance between the boxes */
403  double a_x = (a->xmax + a->xmin) / 2.0;
404  double a_y = (a->ymax + a->ymin) / 2.0;
405  double b_x = (b->xmax + b->xmin) / 2.0;
406  double b_y = (b->ymax + b->ymin) / 2.0;
407 
408  /* This "distance" is only used for comparisons, */
409  return sqrt((a_x - b_x) * (a_x - b_x) + (a_y - b_y) * (a_y - b_y));
410 }

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