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3D model

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import numpy as np
from stl import mesh
import plotly.graph_objects as go

# STLファイルの読み込み
your_mesh = mesh.Mesh.from_file('3LandSat9Parts.stl')

# 頂点座標の取得
x, y, z = your_mesh.vectors.reshape(-1, 3).T

# 三角形の頂点インデックスの作成
i, j, k = np.arange(0, len(x), 3), np.arange(1, len(x), 3), np.arange(2, len(x), 3)

# Plotlyの3D図形オブジェクトの作成
mesh3D = go.Mesh3d(
    x=x, y=y, z=z,
    i=i, j=j, k=k,
    color='slategray',
    opacity=1,
)

# レイアウトの設定
layout = go.Layout(
    scene=dict(
        xaxis=dict(title='X軸', range=[-100, 100]),
        yaxis=dict(title='Y軸', range=[-100, 100]),
        zaxis=dict(title='Z軸', range=[-100, 100]),
        aspectmode='cube'
    ),
    margin=dict(l=0, r=0, b=0, t=0),
    width=1000,
    height=1000,
    hoverlabel_font_size=20
)

# 図の作成と表示
fig = go.Figure(data=[mesh3D], layout=layout)
fig.show()


import numpy as np
import plotly.graph_objects as go
import pywavefront
import logging

# 警告を抑制
logging.getLogger('pywavefront').setLevel(logging.ERROR)

def rotate_vertices(vertices, angle_x, angle_y, angle_z):
    # 回転行列の作成
    Rx = np.array([[1, 0, 0],
                   [0, np.cos(angle_x), -np.sin(angle_x)],
                   [0, np.sin(angle_x), np.cos(angle_x)]])
    
    Ry = np.array([[np.cos(angle_y), 0, np.sin(angle_y)],
                   [0, 1, 0],
                   [-np.sin(angle_y), 0, np.cos(angle_y)]])
    
    Rz = np.array([[np.cos(angle_z), -np.sin(angle_z), 0],
                   [np.sin(angle_z), np.cos(angle_z), 0],
                   [0, 0, 1]])
    
    R = np.dot(Rz, np.dot(Ry, Rx))
    
    # 頂点に回転を適用
    rotated_vertices = np.dot(vertices, R.T)
    return rotated_vertices

# OBJファイルの読み込み
obj = pywavefront.Wavefront('GlobalHawk/GlobalHawkOBJ.obj', collect_faces=True)

# 頂点とファセット(面)データの取得
vertices = np.array(obj.vertices)
faces = np.array([face for mesh in obj.mesh_list for face in mesh.faces])

# 回転角度の設定(ラジアン)
angle_x = np.pi / 4  # X軸周りに45度回転
angle_y = np.pi / 6  # Y軸周りに30度回転
angle_z = np.pi / 3  # Z軸周りに60度回転

# 頂点を回転
rotated_vertices = rotate_vertices(vertices, angle_x, angle_y, angle_z)

# 3Dメッシュオブジェクトの作成
mesh3D = go.Mesh3d(
    x=rotated_vertices[:, 0],
    y=rotated_vertices[:, 1],
    z=rotated_vertices[:, 2],
    i=faces[:, 0],
    j=faces[:, 1],
    k=faces[:, 2],
    color='slategray',
    opacity=1,
)

# サンプルの散布図データの生成(ランダムな点)
num_points = 100
x = np.random.randn(num_points) * 500
y = np.random.randn(num_points) * 500
z = np.random.randn(num_points) * 500

# 散布図オブジェクトの作成
scatter3D = go.Scatter3d(
    x=x, y=y, z=z,
    mode='markers',
    marker=dict(
        size=5,
        color=z,
        colorscale='Viridis',
        opacity=0.8
    )
)

# レイアウトの設定
layout = go.Layout(
    scene=dict(
        xaxis=dict(title='X軸', range=[-500, 500]),
        yaxis=dict(title='Y軸', range=[-500, 500]),
        zaxis=dict(title='Z軸', range=[-500, 500]),
        aspectmode='cube'
    ),
    margin=dict(l=0, r=0, b=0, t=0),
    width=1000,
    height=1000,
    hoverlabel_font_size=20
)

# 図の作成
fig = go.Figure(data=[mesh3D, scatter3D], layout=layout)

# 図の表示
fig.show()
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