修复馆内模型初始视图与点位返回复位

src/components/map/ThreeMap.vue

@@ -1999,8 +1999,12 @@ const handleResize = () => {
   const container = getContainerElement()
   if (!container || !camera || !renderer) return
 
-  const width = Math.max(1, container.clientWidth)
-  const height = Math.max(1, container.clientHeight)
+  const width = container.clientWidth
+  const height = container.clientHeight
+  // Kept-alive uni-app pages briefly report a zero-sized canvas while a detail page is on top.
+  // Treat that as hidden state instead of a real aspect-ratio change, otherwise a return reset
+  // would rebuild the floor baseline against a synthetic 1:1 viewport.
+  if (width <= 1 || height <= 1) return
   const nextAspect = width / height
   if (Math.abs(camera.aspect - nextAspect) > 1e-6) clearFloorViewBaselines()
   camera.aspect = nextAspect
@@ -3391,19 +3395,39 @@ const restoreCameraSnapshot = (snapshot: CameraSnapshot) => {
   cameraSnapshotRestoreCount += 1
   cancelCameraTween()
   clearProgrammaticCameraTimer()
-  isProgrammaticCameraChange = false
-  camera.position.copy(snapshot.position)
-  camera.up.copy(snapshot.up)
-  camera.fov = snapshot.fov
-  camera.zoom = snapshot.zoom
-  camera.near = snapshot.near
-  camera.far = snapshot.far
-  camera.updateProjectionMatrix()
-  controls.target.copy(snapshot.target)
-  controls.update()
-  // OrbitControls 以 position/target 同步内部球坐标后，恢复快照四元数以保存精确观察方向。
-  camera.quaternion.copy(snapshot.quaternion)
-  camera.updateMatrixWorld()
+  isProgrammaticCameraChange = true
+
+  // OrbitControls clamps the camera during update(). Make the immutable snapshot part of the
+  // valid range before synchronizing controls, otherwise a large floor baseline is clipped by
+  // the previous view's maxDistance and each reset converges to a different camera distance.
+  const snapshotDistance = snapshot.position.distanceTo(snapshot.target)
+  if (Number.isFinite(snapshotDistance) && snapshotDistance > 0) {
+    controls.minDistance = Math.min(controls.minDistance, snapshotDistance)
+    controls.maxDistance = Math.max(controls.maxDistance, snapshotDistance)
+  }
+
+  // Consume any gesture delta left in OrbitControls without damping before applying the
+  // snapshot. Subsequent render frames must not continue a drag or wheel gesture after reset.
+  const dampingEnabled = controls.enableDamping
+  controls.enableDamping = false
+  try {
+    controls.update()
+    camera.position.copy(snapshot.position)
+    camera.up.copy(snapshot.up)
+    camera.fov = snapshot.fov
+    camera.zoom = snapshot.zoom
+    camera.near = snapshot.near
+    camera.far = snapshot.far
+    camera.updateProjectionMatrix()
+    controls.target.copy(snapshot.target)
+    controls.update()
+    // OrbitControls 以 position/target 同步内部球坐标后，恢复快照四元数以保存精确观察方向。
+    camera.quaternion.copy(snapshot.quaternion)
+    camera.updateMatrixWorld()
+  } finally {
+    controls.enableDamping = dampingEnabled
+    isProgrammaticCameraChange = false
+  }
 }
 
 const applyReferenceOverviewCameraState = () => {

src/components/navigation/GuideMapShell.vue

@@ -10,7 +10,7 @@
           :asset-base-url="indoorAssetBaseUrl"
           :model-source="effectiveIndoorModelSource"
           :initial-floor-id="activeFloorId"
-          :initial-view="indoorView"
+          :initial-view="indoorInitialView"
           :show-controls="false"
           :show-poi="shouldShowIndoorPois"
           :visible-poi-ids="visiblePoiIds"