24 lines
514 B
Markdown
24 lines
514 B
Markdown
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# Vector3::ProjectOnPlane
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```cpp
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static Vector3 ProjectOnPlane(const Vector3& vector, const Vector3& planeNormal)
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```
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将向量投影到平面上（减去沿平面法线的分量）。
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**参数：**
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- `vector` - 要投影的向量
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- `planeNormal` - 平面法线
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**返回：** `Vector3` - 平面上的投影向量
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**复杂度：** O(1)
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**示例：**
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```cpp
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Vector3 v(1.0f, 1.0f, 1.0f);
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Vector3 normal(0.0f, 1.0f, 0.0f); // XZ 平面
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Vector3 projected = Vector3::ProjectOnPlane(v, normal); // (1, 0, 1)
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```
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