Function CreateDataSet

Common/DataModel/Testing/Cxx/TestDataObjectTreeRange.cxx:239–298

Construct the following hierarchy for testing: M = MBDS; P = PolyData; 0 = null dataset ------------------------M------------------------ // depth 0 | | | | P 0 -------------------M-- M // depth 1 | | | | | -----M----- 0 P ------M ------------M // depth 2 | | | | |

//                                P                   // depth 5
//
vtkSmartPointer<vtkDataObjectTree> CreateDataSet()
{
  auto addPolyData = [](unsigned int blockNum,
                       vtkMultiBlockDataSet* mbds) -> vtkSmartPointer<vtkPolyData>
  {
    vtkNew<vtkPolyData> pd;
    mbds->SetBlock(blockNum, pd);
    return { pd };
  };

  auto addMultiBlock = [](unsigned int blockNum,
                         vtkMultiBlockDataSet* mbds) -> vtkSmartPointer<vtkMultiBlockDataSet>
  {
    auto newMbds = vtkSmartPointer<vtkMultiBlockDataSet>::New();
    mbds->SetBlock(blockNum, newMbds);
    return newMbds;
  };

  auto addNullDataSet = [](unsigned int blockNum, vtkMultiBlockDataSet* mbds) -> void
  { mbds->SetBlock(blockNum, nullptr); };

  auto cds00 = vtkSmartPointer<vtkMultiBlockDataSet>::New();
  cds00->SetNumberOfBlocks(4);
  addPolyData(0, cds00);
  addNullDataSet(1, cds00);
  auto cds10 = addMultiBlock(2, cds00);
  auto cds11 = addMultiBlock(3, cds00);

  cds10->SetNumberOfBlocks(4);
  auto cds20 = addMultiBlock(0, cds10);
  addNullDataSet(1, cds10);
  addPolyData(2, cds10);
  auto cds21 = addMultiBlock(3, cds10);

  cds11->SetNumberOfBlocks(1);
  auto cds22 = addMultiBlock(0, cds11);

  cds20->SetNumberOfBlocks(3);
  addNullDataSet(0, cds20);
  addNullDataSet(1, cds20);
  addNullDataSet(2, cds20);

  cds21->SetNumberOfBlocks(2);
  addPolyData(0, cds21);
  addNullDataSet(1, cds21);

  cds22->SetNumberOfBlocks(2);
  auto cds30 = addMultiBlock(0, cds22);
  addNullDataSet(1, cds22);

  cds30->SetNumberOfBlocks(3);
  auto cds40 = addMultiBlock(0, cds30);
  addNullDataSet(1, cds30);
  addPolyData(2, cds30);

  cds40->SetNumberOfBlocks(1);
  addPolyData(0, cds40);