class ConstantSurfaceAdditiveShiftFunction implements SurfaceShiftFunction<ConstantDoublesSurface> {

  @Override
  public ConstantDoublesSurface evaluate(final ConstantDoublesSurface surface, final double shift) {
    Validate.notNull(surface, "surface");
    return evaluate(surface, shift, "PARALLEL_SHIFT_" + surface.getName());
  }

}