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docs: add scene viewport overlay helper docs

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2026-04-04 13:38:55 +08:00
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docs/api/XCEngine/Editor/Viewport/Viewport.md
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@@ -35,6 +35,14 @@
把 HUD 命中与 overlay handle 命中合并成统一交互结果。
- [SceneViewportInteractionActions](SceneViewportInteractionActions/SceneViewportInteractionActions.md)
把交互结果折叠成 hover / click action，并分发 selection / orientation 对齐。
- [SceneViewportEditorOverlayData](SceneViewportEditorOverlayData/SceneViewportEditorOverlayData.md)
定义 world line、sprite、screen triangle 与 handle record 组成的 canonical overlay 帧协议。
- [SceneViewportOverlayProviders](SceneViewportOverlayProviders/SceneViewportOverlayProviders.md)
定义相机 / 灯光 / transform gizmo overlay provider 接口、registry 与默认工厂。
- [SceneViewportOverlayBuilder](SceneViewportOverlayBuilder/SceneViewportOverlayBuilder.md)
按 provider registry 聚合一帧 Scene View editor overlay 数据。
- [SceneViewportOverlayHitTester](SceneViewportOverlayHitTester/SceneViewportOverlayHitTester.md)
基于 overlay `handleRecords` 对鼠标位置做命中测试，并给 resolver 提供候选结果。
- [SceneViewportMoveGizmo](SceneViewportMoveGizmo/SceneViewportMoveGizmo.md)
处理轴向 / 平面位移 gizmo 的绘制数据、命中与多对象拖拽事务。
- [SceneViewportRotateGizmo](SceneViewportRotateGizmo/SceneViewportRotateGizmo.md)
@@ -70,6 +78,10 @@
- [ViewportObjectIdPicker](ViewportObjectIdPicker/ViewportObjectIdPicker.md)
- [SceneViewportHudOverlay](SceneViewportHudOverlay/SceneViewportHudOverlay.md)
- [SceneViewportOrientationGizmo](SceneViewportOrientationGizmo/SceneViewportOrientationGizmo.md)
- [SceneViewportEditorOverlayData](SceneViewportEditorOverlayData/SceneViewportEditorOverlayData.md)
- [SceneViewportOverlayProviders](SceneViewportOverlayProviders/SceneViewportOverlayProviders.md)
- [SceneViewportOverlayBuilder](SceneViewportOverlayBuilder/SceneViewportOverlayBuilder.md)
- [SceneViewportOverlayHitTester](SceneViewportOverlayHitTester/SceneViewportOverlayHitTester.md)
- [SceneViewportMoveGizmo](SceneViewportMoveGizmo/SceneViewportMoveGizmo.md)
- [SceneViewportRotateGizmo](SceneViewportRotateGizmo/SceneViewportRotateGizmo.md)
- [SceneViewportScaleGizmo](SceneViewportScaleGizmo/SceneViewportScaleGizmo.md)