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

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Bounds::GetClosestPoint

Vector3 GetClosestPoint(const Vector3& point) const

获取包围盒上最接近给定点的点。如果点在盒内,则返回该点本身;如果在盒外,则返回该点在盒面上的投影点。

参数:

  • point - 参考点

返回: Vector3 - 盒上最接近的点

线程安全:

复杂度: O(1)

示例:

#include <XCEngine/Math/Bounds.h>
#include <XCEngine/Math/Vector3.h>

using namespace XCEngine::Math;

Bounds bounds(Vector3(0.0f, 0.0f, 0.0f), Vector3(2.0f, 2.0f, 2.0f));

Vector3 inside = bounds.GetClosestPoint(Vector3(0.0f, 0.0f, 0.0f));
// returns (0, 0, 0) since point is inside

Vector3 outside = bounds.GetClosestPoint(Vector3(10.0f, 0.0f, 0.0f));
// returns (1, 0, 0) - closest point on box surface

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