ohif-viewer/extensions/dicom-microscopy/src/utils/getSourceDisplaySet.js

/**
 * Get referenced SM displaySet from SR displaySet
 *
 * @param {*} allDisplaySets
 * @param {*} microscopySRDisplaySet
 * @returns
 */
export default function getSourceDisplaySet(
  allDisplaySets,
  microscopySRDisplaySet
) {
  const { ReferencedFrameOfReferenceUID } = microscopySRDisplaySet;

  const otherDisplaySets = allDisplaySets.filter(
    ds =>
      ds.displaySetInstanceUID !== microscopySRDisplaySet.displaySetInstanceUID
  );
  const referencedDisplaySet = otherDisplaySets.find(
    displaySet =>
      displaySet.Modality === 'SM' &&
      (displaySet.FrameOfReferenceUID === ReferencedFrameOfReferenceUID ||
        // sometimes each depth instance has the different FrameOfReferenceID
        displaySet.othersFrameOfReferenceUID.includes(
          ReferencedFrameOfReferenceUID
        ))
  );

  if (!referencedDisplaySet && otherDisplaySets.length >= 1) {
    console.warn(
      'No display set with FrameOfReferenceUID',
      ReferencedFrameOfReferenceUID,
      'single series, assuming data error, defaulting to only series.'
    );
    return otherDisplaySets.find(displaySet => displaySet.Modality === 'SM');
  }

  return referencedDisplaySet;
}