- radius = MIN (5.0 / 12.0 * (geom->data_top - geom->data_bottom),
- 1.0 / 4.0 * (geom->data_right - geom->data_left));
+ radius = MIN (5.0 / 12.0 * (geom->axis[SCALE_ORDINATE].data_max - geom->axis[SCALE_ORDINATE].data_min),
+ 1.0 / 4.0 * (geom->axis[SCALE_ABSCISSA].data_max - geom->axis[SCALE_ORDINATE].data_min));