前回はptsファイルを二次元でプロットしてみた
勉強ついでに三次元でのプロットもやってみようと思う！
20220228.pts
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ptsファイルの中身はこんな感じ
このファイルをmain.pyと同じディレクトリにおく
main.py
f = open("./20220228.pts",'r')
data = f.read()
datas_list = data.split('\n')
datas_float = []
for data_list in datas_list:
datas_float.append(data_list.split(' '))
x_list = []
y_list = []
z_list = []
for i in range (len(datas_float)-1):
for ii in range(3):
if(ii % 3 == 1):
x_list.append(float(datas_float[i][0]))
elif(ii % 3 == 2):
y_list.append(float(datas_float[i][1]))
else:
z_list.append(float(datas_float[i][2]))
main.py
import numpy as np
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D
fig = plt.figure(figsize = (8, 8))
ax = fig.add_subplot(111, projection='3d')
ax.set_title("pts 3D", size = 20)
ax.set_xlabel("x", size = 14, color = "r")
ax.set_ylabel("y", size = 14, color = "r")
ax.set_zlabel("z", size = 14, color = "r")
ax.set_xlim(0,max(x_list))
ax.set_ylim(0,max(y_list))
ax.set_zlim(0,max(z_list))
for i in range(len(z_list)):
ax.scatter(x_list[i], y_list[i], z_list[i], s = 40, c = "blue")
plt.show()
fig.savefig('3d.jpg')
実際の点群情報
pythonで3dプロットした結果
結果
これもまた前回の二次元にプロットした時と同様で
3dプロットしたものが点群情報とは異なっていることが分かる
課題
ptsファイルの構成を色々調べる必要がある