# -*- coding:utf-8 -*-import numpy as np import matplotlib.pyplot as plt import mpl_toolkits.mplot3d.axes3d as p3 import matplotlib.animation as animation# Fixing random state for reproducibility np.random.seed(19680801)''' # 函數名稱：Gen_RandLine # 函數功能：產生隨機線條 # 參數：length：線段的樹目 # dims：數據的維數 # 返回值： ''' def Gen_RandLine(length, dims=2):"""Create a line using a random walk algorithmlength is the number of points for the line.dims is the number of dimensions the line has."""lineData = np.empty((dims, length))lineData[:, 0] = np.random.rand(dims)for index in range(1, length):# scaling the random numbers by 0.1 so# movement is small compared to position.# subtraction by 0.5 is to change the range to [-0.5, 0.5]# to allow a line to move backwards.step = ((np.random.rand(dims) - 0.5) * 0.1)lineData[:, index] = lineData[:, index - 1] + stepreturn lineDatadef update_lines(num, dataLines, lines):for line, data in zip(lines, dataLines):# NOTE: there is no .set_data() for 3 dim data...line.set_data(data[0:2, :num])line.set_3d_properties(data[2, :num])return lines# Attaching 3D axis to the figure Ax = [0, 8] Ay = [0, 7] Az = [0, 6] Bx = [0, 6] By = [0, 7] Bz = [0, 8]fig = plt.figure() ax = p3.Axes3D(fig)# 繪制三維直線 ax.plot(Ax, Ay, Az, color='red', linestyle='-') # 繪制三維箭頭 ax.quiver(Ax[-1], Ay[-1], Az[-1], Ax[-1]*0.1, Ay[-1]*0.1, Az[-1]* 0.1, color='red', linestyle='-', normalize=False) # 繪制三維點 ax.scatter(Ax[-1]*1.1, Ay[-1]*1.1, Az[-1]*1.1, color='red') # 添加三維文字注釋 ax.text(Ax[-1]+1, Ay[-1]-1, Az[-1]-0, "Qb = [Qx', Qy', Qz']", color='black') ax.text(Ax[-1]+1, Ay[-1]+1, Az[-1]+1, "Point_B", color='black') ax.scatter(0, 0, 0, color='red') ax.text(0, 0, 1, "Point_A", color='black') ax.text(0+2, 0-1, 1-0, "Qa = [Qx, Qy, Qz]", color='black')''' ax.plot(Bx, By, Bz, color='blue', linestyle='-.') ax.quiver(Bx[-1], By[-1], Bz[-1], Bx[-1]*0.1, By[-1]*0.1, Bz[-1]* 0.1, color='blue', linestyle='-.', normalize=False) ax.scatter(Bx[-1]*1.1, By[-1]*1.1, Bz[-1]*1.1, color='blue') ax.text(Bx[-1]-1, By[-1]-1, Bz[-1]+1, "Qb = [Qx', Qy', Qz']", color='black') ax.text(Bx[-1]+1, By[-1]+1, Bz[-1]+1, "Point_B", color='black') '''ax.text2D(0.05, 0.95, "3D Axis", transform=ax.transAxes)# Setting the axes properties ax.set_xlim3d([-1, 10]) ax.set_xlabel('XAxis') ax.set_ylim3d([-1, 10]) ax.set_ylabel('YAxis') ax.set_zlim3d([-1, 10]) ax.set_zlabel('ZAxis') # ax.set_title('Change the title')plt.show()

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