Reference link: https: //blog.csdn.net/You_are_my_dream/article/details/53457960
fill () function to fill the area between the curve and the coordinate axes:
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 () partially filled between two curves function:
wave_curve DEF ():
n-= 256
X-np.linspace = (-np.pi, np.pi, n-, Endpoint = True)
the Y np.sin = (X-2 *)
plt.plot (X-, the Y +. 1, Color = 'Blue', Alpha = 0.5)
# fill the region between the two functions plt.fill_between (X, 1, Y + 1, color = 'blue', alpha = .25), the present embodiment is filled (0 and Y region between + 1'd)
# plt.fill (the Y, X-, Color = 'Blue')
plt.plot (X-, the Y-. 1, Color = 'Gray', Alpha = 0.6)
plt.fill_between (X-, -1 , the Y-. 1, WHERE = -1>. 1 the Y-, Color = 'Blue', Alpha = .6)
plt.fill_between (X-, -1, the Y-. 1, -1 = WHERE <+. 1 the Y, Color = ' Red ', Alpha = .7)
plt.xlim (-np.pi, np.pi)
plt.xticks ([]) is not empty display coordinate #
plt.ylim (-2.0,2.0)
plt.yticks ([])
plt.show ()
effect:
