使用MatplotLib Python进行实心旋转

import matplotlib.pyplot as plt
import numpy as np

# 创建数据
theta = np.linspace(0, 2*np.pi, 100)
r = np.linspace(0, 1, 100)
theta, r = np.meshgrid(theta, r)
x = r * np.cos(theta)
y = r * np.sin(theta)

# 定义旋转中心和角度
center_x, center_y = 0, 0
angle = 45  # 旋转45度

# 应用旋转变换
cos_theta = np.cos(np.deg2rad(angle))
sin_theta = np.sin(np.deg2rad(angle))
x_rot = (x - center_x) * cos_theta - (y - center_y) * sin_theta + center_x
y_rot = (x - center_x) * sin_theta + (y - center_y) * cos_theta + center_y

# 绘制旋转后的图形
fig, ax = plt.subplots()
ax.pcolormesh(x_rot, y_rot, np.sqrt(x**2 + y**2), cmap='viridis')
ax.set_aspect('equal')
plt.colorbar(label='Distance from Origin')
plt.title('Solid Rotation of a Circle')
plt.xlabel('X')
plt.ylabel('Y')
plt.show()