50 lines
1.2 KiB
Markdown
50 lines
1.2 KiB
Markdown
# Matrix4x4::Decompose
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```cpp
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void Decompose(Vector3& translation, Quaternion& rotation, Vector3& scale) const
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```
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将变换矩阵分解为平移、旋转和缩放三个独立分量。
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**参数：**
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- `translation` - 输出参数，接收平移向量
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- `rotation` - 输出参数，接收旋转四元数
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- `scale` - 输出参数，接收缩放向量
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**返回：** （无）
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**线程安全：** ✅
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**复杂度：** O(1)
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**示例：**
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```cpp
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#include "XCEngine/Math/Matrix4.h"
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#include "XCEngine/Math/Vector3.h"
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#include "XCEngine/Math/Quaternion.h"
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using namespace XCEngine::Math;
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Matrix4 transform = Matrix4::TRS(
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Vector3(1.0f, 2.0f, 3.0f),
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Quaternion::FromEuler(45.0f, 0.0f, 0.0f),
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Vector3(2.0f, 2.0f, 2.0f)
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);
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Vector3 translation;
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Quaternion rotation;
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Vector3 scale;
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transform.Decompose(translation, rotation, scale);
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// translation = (1.0f, 2.0f, 3.0f)
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// rotation 表示 45 度 X 轴旋转
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// scale = (2.0f, 2.0f, 2.0f)
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```
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## 相关文档
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- [Matrix4](matrix4.md) - 返回类总览
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- [TRS](trs.md) - 组合变换矩阵
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- [GetTranslation](gettranslation.md) - 获取平移分量
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- [GetRotation](getrotation.md) - 获取旋转分量
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- [GetScale](getscale.md) - 获取缩放分量 |