def plot_points():
    glClear(GL_COLOR_BUFFER_BIT)
    glColor3f(1.0, 0.0, 0.0)
    glBegin(GL_POINTS)
    bres = circle_algorithms(60, 0, 0)
    bres.bresenham_circle()
    para = circle_algorithms(100, 0, 0)
    para.parameteric_circle()
    midp = circle_algorithms(150, 0, 0)
    midp.midpoint_circle()
    glEnd()
    glFlush()
def plot_points():
    glClear(GL_COLOR_BUFFER_BIT)
    glColor3f(1.0, 0.0, 0.0)
    glBegin(GL_POINTS)
    bres = circle_algorithms(60, 0, 0)
    bres.bresenham_circle()
    para = circle_algorithms(100, 0, 0)
    para.parameteric_circle()
    midp = circle_algorithms(150, 0, 0)
    midp.midpoint_circle()
    glEnd()
    glFlush()