Python 绘图与可视化 matplotlib 填充fill和fill_between
参考链接:https://blog.csdn.net/You_are_my_dream/article/details/53457960
fill()填充函数曲线与坐标轴之间的区域:
x = np.linspace(0, 5 * np.pi, 1000)y1 = np.sin(x)
y2 = np.sin(2 * x)
plt.fill(x, y1, color = "g", alpha = 0.3)
fill_between()填充两个函数曲线之间的部分:
def wave_curve():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=0.5)
plt.fill_between(X,1,Y+1,color='blue',alpha=.25)#填充两个函数之间的区域,本例中填充(0和Y+1之间的区域)
# plt.fill(Y,X,color='blue')
plt.plot(X,Y-1,color='gray',alpha=0.6)
plt.fill_between(X,-1,Y-1,where=-1>Y-1,color='blue',alpha=.6)
plt.fill_between(X,-1,Y-1,where=-1<Y+1,color='red',alpha=.7)
plt.xlim(-np.pi,np.pi)
plt.xticks([])#为空不显示坐标
plt.ylim(-2.0,2.0)
plt.yticks([])
plt.show()
效果:
以上是 Python 绘图与可视化 matplotlib 填充fill和fill_between 的全部内容, 来源链接: utcz.com/z/389038.html