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.claude/skills/reveal-3d/code/reveal/hooks/use3dDataForSelectedInstance.ts

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+import type { DMInstanceRef } from '@cognite/reveal';
+import { useMemo } from 'react';
+import {
+  useInstancesWithBoundingBoxes,
+  type InstancesWithBoxesAndOriginalInstance,
+} from './useInstancesWithBoundingBoxes';
+import { useFindRelated3dInstances } from './useFindRelated3dInstances';
+
+export const useInstancesWithBounds = (
+  inputInstances: DMInstanceRef[],
+  originalInstance: DMInstanceRef
+): InstancesWithBoxesAndOriginalInstance | undefined => {
+  const instancesWithBounds = useInstancesWithBoundingBoxes(inputInstances);
+
+  return useMemo<InstancesWithBoxesAndOriginalInstance | undefined>(() => {
+    if (inputInstances.length === 0 || instancesWithBounds.length === 0) {
+      return undefined;
+    }
+    return { instancesWithBoxes: [...instancesWithBounds], originalInstance };
+  }, [instancesWithBounds, inputInstances.length, originalInstance]);
+};
+
+export function use3dDataForSelectedInstance(
+  instance: DMInstanceRef
+): InstancesWithBoxesAndOriginalInstance | undefined {
+  const threeDRelatedSelection = useFindRelated3dInstances(instance);
+  const selectedInstancesWithBoundsAndCorrespondingInstance =
+    useInstancesWithBounds(threeDRelatedSelection, instance);
+  return selectedInstancesWithBoundsAndCorrespondingInstance;
+}