19 lines
325 B
Markdown
19 lines
325 B
Markdown
# Viewport::GetAspectRatio
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```cpp
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float GetAspectRatio() const
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```
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获取视口宽高比。
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**返回：** `float` - 宽高比 (width / height)，height 为 0 时返回 0.0f
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**复杂度：** O(1)
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**示例：**
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```cpp
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Viewport viewport(0, 0, 1920, 1080);
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float aspect = viewport.GetAspectRatio(); // 1.777... (16:9)
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```
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