message: use structure.root.boundary for volume
diff: @@ -97,7 +97,7 @@ export function getQualityProps(props: Partial<QualityProps>, data?: any) {
  let volume = 0;
  if (quality === 'auto' && data instanceof Structure) {
  quality = getStructureQuality(data.root);
  - volume = Box3D.volume(data.boundary.box);
  + volume = Box3D.volume(data.root.boundary.box);
  }
  switch (quality) {
  