Function ExtendForUnion

Common/DataModel/vtkDataSetAttributesFieldList.cxx:203–210

@{ * These methods are used by `UnionFieldList` to pad a FieldInfo instance. * Calling these methods clears `AttributeTypes` since it indicates that this * field is missing either in the inputs seen so far or in the current * input and hence cannot be flagged as an attribute. */

   * input and hence cannot be flagged as an attribute.
   */
  void ExtendForUnion()
  {
    this->Location.push_back(-1);

    std::array<bool, vtkDataSetAttributes::NUM_ATTRIBUTES> curattrs;
    std::fill(curattrs.begin(), curattrs.end(), false);
    this->AttributeTypes.push_back(curattrs);
  }

  void PreExtendForUnion(int count)
  {