Method ExtractMultiPoint

IO/GeoJSON/vtkGeoJSONFeature.cxx:132–169

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
vtkPolyData* vtkGeoJSONFeature::ExtractMultiPoint(
  const Json::Value& coordinates, vtkPolyData* outputData)
{
  // Check if Coordinates corresponds to Multi Points
  if (!IsMultiPoint(coordinates))
  {
    vtkErrorMacro(<< "Wrong data format for a Multi Point!");
    return nullptr;
  }

  if (coordinates.isArray())
  {
    vtkPoints* points = outputData->GetPoints(); // Contain the locations of the points
    vtkCellArray* verts =
      outputData->GetVerts(); // Contain the indices corresponding to the position of the vertices

    vtkAbstractArray* array = outputData->GetCellData()->GetAbstractArray("feature-id");
    vtkStringArray* ids = vtkArrayDownCast<vtkStringArray>(array);

    const int PID_SIZE = coordinates.size();
    vtkIdType* pids = new vtkIdType[PID_SIZE];
    double point[3];
    for (int i = 0; i < PID_SIZE; i++)
    {
      // Parse point from Json object to double array and add it to the points array
      CreatePoint(coordinates, point);
      pids[i] = points->InsertNextPoint(point);
    }

    // Update polyData vertices to store multiple points
    verts->InsertNextCell(PID_SIZE, pids);
    ids->InsertNextValue(this->FeatureId);

    delete[] pids;
  }

  return outputData;
}

//------------------------------------------------------------------------------
vtkPolyData* vtkGeoJSONFeature::ExtractLineString(