matplotlib中plot颜色控制
matplotlib实现区域颜色填充本文实例为大家分享了matplotlib实现区域颜色填充的具体代码,供大家参考,具体内容如下
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import matplotlib.pyplot as plt import numpy as np x = np.linspace( 0 , 5 * np.pi, 1000 ) y1 = np.sin(x) y2 = np.sin( 2 * x) #plt.plot(x,y1) #plt.plot(x,y2) plt.fill(x,y1, 'b' ,alpha = 0.5 ) plt.fill(x,y2, 'r' ,alpha = 0.3 ) plt.fill_between(x,y1,y2,facecolor = 'green' ) plt.grid(true) plt.show() ######################################################### plt.plot(x,y1, 'b' ,alpha = 0.5 ) plt.plot(x,y2, 'r' ,alpha = 0.3 ) #添加条件 #如果数据点比较少的情况下,会有缝隙出现,使用interpolate可以填充缝隙 plt.fill_between(x,y1,y2,where = y1> = y2,facecolor = 'green' ,interpolate = true) plt.fill_between(x,y1,y2,where = y2>y1,facecolor = 'yellow' ,interpolate = true) plt.grid(true) plt.show() ########################################################### n = 256 x = np.linspace( - np.pi, np.pi, n, endpoint = true) y = np.sin( 2 * x) plt.plot(x, y + 1 , color = 'blue' , alpha = 1.00 ) plt.fill_between(x, 1 , y + 1 , color = 'blue' , alpha = . 25 ) plt.plot(x, y - 1 , color = 'blue' , alpha = 1.00 ) plt.fill_between(x, - 1 , y - 1 , (y - 1 ) > - 1 , color = 'blue' , alpha = . 25 ) plt.fill_between(x, - 1 , y - 1 , (y - 1 ) < - 1 , color = 'red' , alpha = . 25 ) plt.xlim( - np.pi, np.pi) plt.xticks(()) plt.ylim( - 2.5 , 2.5 ) plt.yticks(()) |
效果图:
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原文链接:https://blog.csdn.net/szfhy/article/details/82710742