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XCEngine/docs/api/math/obb/contains.md
2026-03-20 02:35:15 +08:00

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OBB::Contains

bool Contains(const Vector3& point) const;

检测给定点是否位于 OBB 包围盒内部。通过将点变换到局部坐标系,然后检查其坐标分量是否在半长向量范围内。

参数:

  • point - 待检测的三维点

返回: 点在包围盒内返回 true,否则返回 false

异常:

线程安全:

复杂度: O(1)

示例:

#include "AABB.h"
#include "Vector3.h"

using namespace XCEngine::Math;

OBB obb(Vector3(0.0f, 0.0f, 0.0f), Vector3(1.0f, 0.5f, 1.0f));

Vector3 insidePoint(0.0f, 0.0f, 0.0f);
Vector3 outsidePoint(2.0f, 0.0f, 0.0f);

bool isInside = obb.Contains(insidePoint);
bool isOutside = obb.Contains(outsidePoint);