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XCEngine/docs/api/math/sphere/contains.md
ssdfasd b414bc5326 refactor(docs): Fix broken links across multiple modules
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2026-03-26 02:41:00 +08:00

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Sphere::Contains

bool Contains(const Vector3& point) const

检测点是否在球体内(包括球体表面)。使用平方距离比较避免开平方运算。

参数:

  • point - 要检测的点

返回: bool - true 表示点在球体内(包括表面)

线程安全:

复杂度: O(1)

示例:

#include <XCEngine/Core/Math/Sphere.h>
#include <XCEngine/Core/Math/Vector3.h>

using namespace XCEngine::Math;

Sphere sphere(Vector3(0.0f, 0.0f, 0.0f), 1.0f);

Vector3 inside(0.5f, 0.0f, 0.0f);
if (sphere.Contains(inside)) {
}

Vector3 outside(2.0f, 0.0f, 0.0f);
if (!sphere.Contains(outside)) {
}

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