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XCEngine/docs/api/math/transform/inverse-transform-point.md
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Transform::InverseTransformPoint

Vector3 InverseTransformPoint(const Vector3& point) const;

将一个点从世界空间逆变换到本地空间。计算结果为 (rotation.Inverse() * (point - position)) / scale

此方法是 TransformPoint 的逆操作。

参数:

  • point - 世界空间中的点

返回: Vector3 - 本地空间中的逆变换后点

线程安全: (无锁,非线程安全)

复杂度: O(1)

示例:

#include "XCEngine/Core/Math/Transform.h"
#include "XCEngine/Core/Math/Vector3.h"

using namespace XCEngine::Math;

void InverseTransformPointExample() {
    Transform transform;
    transform.position = Vector3(10.0f, 0.0f, 0.0f);
    transform.rotation = Quaternion::Identity();
    transform.scale = Vector3(2.0f, 2.0f, 2.0f);

    Vector3 worldPoint(12.0f, 4.0f, 6.0f);
    Vector3 localPoint = transform.InverseTransformPoint(worldPoint);
}

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