def get_rough_size(points):
    """ gets the rough width and height of the points selected """
    minx, miny, maxx, maxy = 1e8, 1e8, -1e8, -1e8
    for (x_coord, y_coord) in points:
        minx = min(x_coord, minx)
        miny = min(y_coord, miny)
        maxx = max(x_coord, maxx)
        maxy = max(y_coord, maxy)
    return (round(maxx-minx), round(maxy-miny))