粉色圣诞树python代码3d

### Python 3D 粉色圣诞树绘制

为了实现一个粉色的3D圣诞树，可以利用 `matplotlib` 広展库中的三维绘图功能来完成此任务。下面是一个简单的例子：

import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d.art3d import Poly3DCollection
import numpy as np


def create_cone(radius, height, slices=20, stacks=20):
    """创建圆锥体"""
    theta = np.linspace(0, 2 * np.pi, slices)
    z = np.linspace(0, height, stacks)

    Z, Theta = np.meshgrid(z, theta)
    
    X = radius * (height - Z) / height * np.cos(Theta)
    Y = radius * (height - Z) / height * np.sin(Theta)

    return X, Y, Z


fig = plt.figure()
ax = fig.add_subplot(projection='3d')

# 创建并添加树干部分
tree_trunk = [[[-0.1], [-0.1], [0]], [[0.1], [-0.1], [0]],
              [[0.1], [0.1], [0]], [[-0.1], [0.1], [0]],
              [[-0.1], [-0.1], [1]], [[0.1], [-0.1], [1]],
              [[0.1], [0.1], [1]], [[-0.1], [0.1], [1]]]

poly_tree_trunk = Poly3DCollection(tree_trunk, facecolors=['brown'], edgecolor='k')
ax.add_collection3d(poly_tree_trunk)


X, Y, Z = create_cone(1, 4)
surf = ax.plot_surface(X, Y, Z, color="pink", shade=True)

plt.show()

上述代码通过构建一系列三角形面片模拟了一个简单版本的粉红色3D圣诞树模型[^1]。