python_画辅助线

mode = np.array([1.46, 2.69, 4.00, 6.02, 7.73, 9.42, 9.90, 14.13, 17.31, 23.05, 24.79, 37.54])

x = mode

ymin = np.zeros(12)

ymax = np.ones(12) *0.015

plt.figure(1)

plt.plot(f,fft_data)

plt.vlines(x, ymin, ymax,color="red",linestyles='dashed',linewidth=1.0) #线宽和线形

plt.ylabel('amp/mv')

plt.xlabel('freq/Hz')

plt.title('FFT')

#plt.ylim(0,0.0)

plt.xlim(1,40)

plt.ylim(0,0.015)

plt.savefig('/home/ym.an/ADS4/figure/'+'all_data_fft.jpg',dpi=200) #控制分辨率