Function CreateMesh

IO/CatalystConduit/vtkConduitToDataObject.cxx:684–728

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//----------------------------------------------------------------------------
vtkSmartPointer<vtkDataSet> CreateMesh(
  const conduit_cpp::Node& topology, const conduit_cpp::Node& coordsets)
{
  // get the coordset for this topology element.
  auto coords = coordsets[topology["coordset"].as_string()];
  if (topology["type"].as_string() == "uniform" && coords["type"].as_string() == "uniform")
  {
    return CreateImageData(coords);
  }

  if (topology["type"].as_string() == "rectilinear" && coords["type"].as_string() == "rectilinear")
  {
    return CreateRectilinearGrid(coords);
  }

  if (topology["type"].as_string() == "structured" && coords["type"].as_string() == "explicit")
  {
    return CreateStructuredGrid(topology, coords);
  }

  if (coords["type"].as_string() == "explicit" && topology["type"].as_string() == "unstructured" &&
    topology.has_path("elements/shape"))
  {
    std::string shape = topology["elements/shape"].as_string();
    if (shape != "mixed")
    {
      return CreateMonoShapedUnstructuredGrid(topology, coords);
    }
    else if (topology.has_path("elements/shape_map") && topology.has_path("elements/shapes"))
    {
      return CreateMixedUnstructuredGrid(topology, coords);
    }
    // if there are no cells in the Conduit mesh, return an empty ug
    return vtkSmartPointer<vtkUnstructuredGrid>::New();
  }

  if (coords["type"].as_string() == "explicit" && topology["type"].as_string() == "points")
  {
    auto pointset = vtkSmartPointer<vtkPointSet>::New();
    pointset->SetPoints(CreatePoints(coords));
    return pointset;
  }

  throw std::runtime_error("unsupported topology or coordset");
}

//----------------------------------------------------------------------------
vtkSmartPointer<vtkImageData> CreateImageData(const conduit_cpp::Node& coordset)