python matplotlib 圖表局部放大

標籤：tool   atp   plt   parent   技術   rom   tick   line   python   

import matplotlib.pyplot as pltfrom mpl_toolkits.axes_grid1.inset_locator import zoomed_inset_axesfrom mpl_toolkits.axes_grid1.inset_locator import mark_insetimport numpy as npfig, ax = plt.subplots(figsize=[5, 4])y = x = range(-20,20)ax.plot(x,y)extent = [-3, 4, -4, 3]axins = zoomed_inset_axes(ax, 2, loc=1)  # zoom = 6axins.plot(x,y)# sub region of the original imagex1, x2, y1, y2 = 2.5, 7.5, 2.5, 7.5axins.set_xlim(x1, x2)axins.set_ylim(y1, y2)# fix the number of ticks on the inset axesaxins.yaxis.get_major_locator().set_params(nbins=10)axins.xaxis.get_major_locator().set_params(nbins=10)plt.xticks(visible=True)plt.yticks(visible=True)# draw a bbox of the region of the inset axes in the parent axes and# connecting lines between the bbox and the inset axes areamark_inset(ax, axins, loc1=2, loc2=4, fc="none", ec="0.5")plt.draw()plt.show()

python matplotlib 圖表局部放大