box2df_merge()

void box2df_merge	(	BOX2DF *	b_union,
		BOX2DF *	b_new
	)

Definition at line 177 of file gserialized_gist_2d.c.

{
 
        POSTGIS_DEBUGF(5, "merging %s with %s", box2df_to_string(b_union), box2df_to_string(b_new));
        /* Adjust minimums */
        if (b_union->xmin > b_new->xmin || isnan(b_union->xmin))
                b_union->xmin = b_new->xmin;
        if (b_union->ymin > b_new->ymin || isnan(b_union->ymin))
                b_union->ymin = b_new->ymin;
        /* Adjust maximums */
        if (b_union->xmax < b_new->xmax || isnan(b_union->xmax))
                b_union->xmax = b_new->xmax;
        if (b_union->ymax < b_new->ymax || isnan(b_union->ymax))
                b_union->ymax = b_new->ymax;
 
        POSTGIS_DEBUGF(5, "merge complete %s", box2df_to_string(b_union));
        return;
}

References box2df_to_string().

Referenced by gserialized_gist_union_2d(), and spatial_index_read_extent().

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