message: wip testing: don't partition
  partitioning does'nt agree with trajectories of water/lipid molecules...
diff: @@ -660,6 +660,8 @@ namespace Structure {
  return create(units, { representativeModel: trajectory[0], label: trajectory[0].label });
  }
  + const PARTITION = false;
  +
  /**
  * Construct a Structure from a model.
  *
  @@ -706,6 +708,7 @@ namespace Structure {
  const elements = SortedArray.ofBounds(start as ElementIndex, chains.offsets[c + 1] as ElementIndex);
  + if (PARTITION) {
  // check for polymer to exclude CA/P-only models
  if (singleAtomResidues && !isPolymerChain(model, c)) {
  partitionAtomicUnitByAtom(model, elements, builder, multiChain, operator);
  @@ -715,6 +718,9 @@ namespace Structure {
  } else {
  builder.addUnit(Unit.Kind.Atomic, model, operator, elements, multiChain ? Unit.Trait.MultiChain : Unit.Trait.None);
  }
  + } else {
  + builder.addUnit(Unit.Kind.Atomic, model, operator, elements, multiChain ? Unit.Trait.MultiChain : Unit.Trait.None);
  + }
  }
  const cs = model.coarseHierarchy;
  