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119 lines
2.4 KiB
Markdown
119 lines
2.4 KiB
Markdown
---
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title: mbcp.presets.model.\n\ninit\n\n
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order: 1
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icon: laptop-code
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category: API
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---
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### ***def*** `sphere(radius: float, density: float) -> None`
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生成球体上的点集。
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Args:
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radius:
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density:
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Returns:
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List[Point3]: 球体上的点集。
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<details>
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<summary>源代码</summary>
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```python
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@staticmethod
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def sphere(radius: float, density: float):
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"""
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生成球体上的点集。
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Args:
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radius:
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density:
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Returns:
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List[Point3]: 球体上的点集。
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"""
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area = 4 * np.pi * radius ** 2
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num = int(area * density)
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phi_list = np.arccos([clamp(-1 + (2.0 * _ - 1.0) / num, -1, 1) for _ in range(num)])
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theta_list = np.sqrt(num * np.pi) * phi_list
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x_array = radius * np.sin(phi_list) * np.cos(theta_list)
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y_array = radius * np.sin(phi_list) * np.sin(theta_list)
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z_array = radius * np.cos(phi_list)
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return [Point3(x_array[i], y_array[i], z_array[i]) for i in range(num)]
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```
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</details>
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### ***class*** `GeometricModels`
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###   ***@staticmethod***
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###   ***def*** `sphere(radius: float, density: float) -> None`
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 生成球体上的点集。
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Args:
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radius:
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density:
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Returns:
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List[Point3]: 球体上的点集。
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<details>
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<summary>源代码</summary>
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```python
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@staticmethod
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def sphere(radius: float, density: float):
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"""
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生成球体上的点集。
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Args:
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radius:
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density:
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Returns:
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List[Point3]: 球体上的点集。
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"""
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area = 4 * np.pi * radius ** 2
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num = int(area * density)
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phi_list = np.arccos([clamp(-1 + (2.0 * _ - 1.0) / num, -1, 1) for _ in range(num)])
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theta_list = np.sqrt(num * np.pi) * phi_list
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x_array = radius * np.sin(phi_list) * np.cos(theta_list)
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y_array = radius * np.sin(phi_list) * np.sin(theta_list)
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z_array = radius * np.cos(phi_list)
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return [Point3(x_array[i], y_array[i], z_array[i]) for i in range(num)]
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```
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</details>
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### ***var*** `area = 4 * np.pi * radius ** 2`
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### ***var*** `num = int(area * density)`
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### ***var*** `phi_list = np.arccos([clamp(-1 + (2.0 * _ - 1.0) / num, -1, 1) for _ in range(num)])`
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### ***var*** `theta_list = np.sqrt(num * np.pi) * phi_list`
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### ***var*** `x_array = radius * np.sin(phi_list) * np.cos(theta_list)`
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### ***var*** `y_array = radius * np.sin(phi_list) * np.sin(theta_list)`
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### ***var*** `z_array = radius * np.cos(phi_list)`
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