BOX3D_distance_internal()

double BOX3D_distance_internal	(	BOX3D *	box1,
		BOX3D *	box2
	)

Definition at line 884 of file lwgeom_box3d.c.

{
        double sqrDist = 0;
        double d;
 
        if (BOX3D_overlaps_internal(box1, box2))
                return 0.0;
 
        /* X axis */
        if (box1->xmax < box2->xmin)
        {
                d = box1->xmax - box2->xmin;
                sqrDist += d * d;
        }
        else if (box1->xmin > box2->xmax)
        {
                d = box1->xmin - box2->xmax;
                sqrDist += d * d;
        }
        /* Y axis */
        if (box1->ymax < box2->ymin)
        {
                d = box1->ymax - box2->ymin;
                sqrDist += d * d;
        }
        else if (box1->ymin > box2->ymax)
        {
                d = box1->ymin - box2->ymax;
                sqrDist += d * d;
        }
        /* Z axis */
        if (box1->zmax < box2->zmin)
        {
                d = box1->zmax - box2->zmin;
                sqrDist += d * d;
        }
        else if (box1->zmin > box2->zmax)
        {
                d = box1->zmin - box2->zmax;
                sqrDist += d * d;
        }
 
        return sqrt(sqrDist);
}

References BOX3D_overlaps_internal(), BOX3D::xmax, BOX3D::xmin, BOX3D::ymax, BOX3D::ymin, BOX3D::zmax, and BOX3D::zmin.

Referenced by BOX3D_distance().

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