Function ArrayTableToSparseArray

Infovis/Core/Testing/Cxx/ArrayTableToSparseArray.cxx:24–119

  } while (false)

int ArrayTableToSparseArray(int vtkNotUsed(argc), char* vtkNotUsed(argv)[])
{
  try
  {
    // Generate an input table ...
    vtkSmartPointer<vtkIdTypeArray> i = vtkSmartPointer<vtkIdTypeArray>::New();
    i->SetName("i");

    vtkSmartPointer<vtkIdTypeArray> j = vtkSmartPointer<vtkIdTypeArray>::New();
    j->SetName("j");

    vtkSmartPointer<vtkIdTypeArray> k = vtkSmartPointer<vtkIdTypeArray>::New();
    k->SetName("k");

    vtkSmartPointer<vtkDoubleArray> value = vtkSmartPointer<vtkDoubleArray>::New();
    value->SetName("value");

    vtkSmartPointer<vtkTable> table = vtkSmartPointer<vtkTable>::New();
    table->AddColumn(i);
    table->AddColumn(j);
    table->AddColumn(k);
    table->AddColumn(value);

    table->InsertNextBlankRow();
    table->SetValue(0, 0, 0);
    table->SetValue(0, 1, 0);
    table->SetValue(0, 2, 0);
    table->SetValue(0, 3, 1);

    table->InsertNextBlankRow();
    table->SetValue(1, 0, 1);
    table->SetValue(1, 1, 2);
    table->SetValue(1, 2, 3);
    table->SetValue(1, 3, 2);

    table->InsertNextBlankRow();
    table->SetValue(2, 0, 4);
    table->SetValue(2, 1, 5);
    table->SetValue(2, 2, 6);
    table->SetValue(2, 3, 3);

    // Run it through vtkTableToSparseArray ...
    vtkSmartPointer<vtkTableToSparseArray> source = vtkSmartPointer<vtkTableToSparseArray>::New();
    source->SetInputData(table);
    source->AddCoordinateColumn("i");
    source->AddCoordinateColumn("j");
    source->AddCoordinateColumn("k");
    source->SetValueColumn("value");
    source->Update();
    {
      vtkSparseArray<double>* const sparse_array = vtkSparseArray<double>::SafeDownCast(
        source->GetOutput()->GetArray(static_cast<vtkIdType>(0)));
      test_expression(sparse_array);

      sparse_array->Print(std::cerr);

      test_expression(sparse_array->GetExtent(0) == vtkArrayRange(0, 5));
      test_expression(sparse_array->GetExtent(1) == vtkArrayRange(0, 6));