ssdfasd
63d0271a5b
Fix 30+ broken cross-references in docs/api/math/: - viewport: viewport-getaspectratio/getrect -> getaspectratio/getrect - matrix4: ../color/operator-mul -> operator_mul, operator-index -> operator_index - matrix4/get-*: gettranslation/getscale/getrotation -> get-translation/-scale/-rotation - vector3 operator links: operator_*_assign -> operator-*-assign - vector3 operator links: operator_sub/add -> operator-sub/add - vector3 operator-eq/neq: swap mutual references to use hyphen naming - vector4: ../plane/constructor-default -> constructor_default - Linter fixes: aabb and rectint relative paths corrected
42 lines
919 B
Markdown
42 lines
919 B
Markdown
# Matrix4x4::GetRotation
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```cpp
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Quaternion GetRotation() const
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```
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从变换矩阵中提取旋转分量。将矩阵转换为对应的四元数表示。
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**参数：** （无）
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**返回：** 旋转四元数
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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/Quaternion.h"
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using namespace XCEngine::Math;
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Quaternion expected = Quaternion::FromEuler(0.0f, 90.0f, 0.0f);
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Matrix4 transform = Matrix4::TRS(
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Vector3(0.0f, 0.0f, 0.0f),
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expected,
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Vector3(1.0f, 1.0f, 1.0f)
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);
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Quaternion rotation = transform.GetRotation();
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// rotation 表示相同的旋转
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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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- [Quaternion](../quaternion/quaternion.md) - 四元数类
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- [GetTranslation](get-translation.md) - 获取平移分量
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- [GetScale](get-scale.md) - 获取缩放分量
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- [Decompose](decompose.md) - 分解矩阵 |