ptarray_calculate_gbox_cartesian_3d()

static void ptarray_calculate_gbox_cartesian_3d ( const POINTARRAY *  pa, GBOX *  gbox  )

static

Definition at line 556 of file gbox.c.

{
        const POINT3D *p = getPoint3d_cp(pa, 0);
 
        gbox->xmax = gbox->xmin = p->x;
        gbox->ymax = gbox->ymin = p->y;
        gbox->zmax = gbox->zmin = p->z;
 
        for (uint32_t i = 1; i < pa->npoints; i++)
        {
                p = getPoint3d_cp(pa, i);
                gbox->xmin = FP_MIN(gbox->xmin, p->x);
                gbox->xmax = FP_MAX(gbox->xmax, p->x);
                gbox->ymin = FP_MIN(gbox->ymin, p->y);
                gbox->ymax = FP_MAX(gbox->ymax, p->y);
                gbox->zmin = FP_MIN(gbox->zmin, p->z);
                gbox->zmax = FP_MAX(gbox->zmax, p->z);
        }
}

References FP_MAX, FP_MIN, getPoint3d_cp(), POINTARRAY::npoints, POINT3D::x, GBOX::xmax, GBOX::xmin, POINT3D::y, GBOX::ymax, GBOX::ymin, POINT3D::z, GBOX::zmax, and GBOX::zmin.

Referenced by ptarray_calculate_gbox_cartesian().

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