import{_ as s,c as i,o as a,a4 as n}from"./chunks/framework.DpC1ZpOZ.js";const y=JSON.parse('{"title":"mbcp.presets.model","description":"","frontmatter":{"title":"mbcp.presets.model","lastUpdated":false,"collapsed":true},"headers":[],"relativePath":"en/api/presets/model/index.md","filePath":"en/api/presets/model/index.md"}'),t={name:"en/api/presets/model/index.md"},h=n(`

mbcp.presets.model ​

几何模型点集

class GeometricModels ​

@staticmethod

method sphere(radius: float, density: float) ​

Description: 生成球体上的点集。

Arguments:

Return: List[Point3]: 球体上的点集。

Source code or View on GitHub
python
@staticmethod
def sphere(radius: float, density: float):
    """
        生成球体上的点集。
        Args:
            radius:
            density:
        Returns:
            List[Point3]: 球体上的点集。
        """
    area = 4 * np.pi * radius ** 2
    num = int(area * density)
    phi_list = np.arccos([clamp(-1 + (2.0 * _ - 1.0) / num, -1, 1) for _ in range(num)])
    theta_list = np.sqrt(num * np.pi) * phi_list
    x_array = radius * np.sin(phi_list) * np.cos(theta_list)
    y_array = radius * np.sin(phi_list) * np.sin(theta_list)
    z_array = radius * np.cos(phi_list)
    return [Point3(x_array[i], y_array[i], z_array[i]) for i in range(num)]
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