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XCSDD/docs/api/math/vector3/magnitude.md
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Vector3::Magnitude

static float Magnitude(const Vector3& v)
float Magnitude() const

计算向量的长度(欧几里得范数)。

静态版本参数:

  • v - 要计算长度的向量

实例版本: 计算当前向量的长度。

返回: float - 向量长度 sqrt(x * x + y * y + z * z)

复杂度: O(1)

示例:

Vector3 v(1.0f, 2.0f, 2.0f);
float len = v.Magnitude();                    // 3.0f
float len2 = Vector3::Magnitude(v);          // 3.0f