Of all the base vtk data types, the only one remaining without a discussion or a specification is vtkStructuredGrid
While not as important as vtkRectilinearGrid (this is already discussed here https://gitlab.kitware.com/vtk/vtk/-/issues/19379), is this something VTKHDF users would be happy to use in order to read/write vtkStructuredGrid in VTKHDF format ?
@mwestphal I believe i posted two possible example files here on the forum a while ago to work towards a specification, based on what a current vtr/vts file looks like.