24 lines
433 B
Markdown
24 lines
433 B
Markdown
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# Rect::Union
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```cpp
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static Rect Union(const Rect& a, const Rect& b)
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```
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计算包含两矩形的最小矩形。
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**参数：**
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- `a` - 第一个矩形
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- `b` - 第二个矩形
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**返回：** `Rect` - 包含两矩形的最小外接矩形
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**复杂度：** O(1)
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**示例：**
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```cpp
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Rect rectA(0.0f, 0.0f, 50.0f, 50.0f);
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Rect rectB(100.0f, 100.0f, 50.0f, 50.0f);
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Rect combined = Rect::Union(rectA, rectB); // (0, 0, 150, 150)
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```
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