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XCSDD/docs/api/math/aabb/getaxis.md
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OBB::GetAxis

Vector3 GetAxis(int index) const

获取 OBB 的局部坐标轴。

参数:

  • index - 轴索引0=X轴, 1=Y轴, 2=Z轴

返回: Vector3 - 对应轴的方向向量

复杂度: O(1)

示例:

OBB obb = ...;
Vector3 xAxis = obb.GetAxis(0);  // 局部 X 轴
Vector3 yAxis = obb.GetAxis(1);  // 局部 Y 轴
Vector3 zAxis = obb.GetAxis(2);  // 局部 Z 轴