def total_grid_lines(major_scale, minor_scale, width, height, depth=0):
    """Given a width height and depth calculate the total grid lines that will fit in an area

    Args:
      width  (number): box  width
      height (number): box height
      depth  (number): box depth 0 for rectangle

    Returns:
      vector: direction of wr, ht, dt
    """
    return int(width / minor_scale), int(height / minor_scale), int(depth /
        minor_scale)
