# VTKHDF roadmap

**URL:** https://discourse.vtk.org/t/vtkhdf-roadmap/13257
**Category:** Development
**Tags:** file-formats
**Created:** [February 5, 2024, 12:33pm UTC](https://discourse.vtk.org/t/vtkhdf-roadmap/13257 "2024-02-05T12:33:45Z")
**Posts on this page:** 1
**Showing post:** 18

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### Author: ![Chris\_Richardson](https://discourse.vtk.org/user_avatar/discourse.vtk.org/chris_richardson/32/10139_2.png) [@Chris\_Richardson](https://discourse.vtk.org/u/Chris_Richardson)
#### Post date: [July 18, 2025, 12:31pm UTC](https://discourse.vtk.org/t/vtkhdf-roadmap/13257/18 "2025-07-18T12:31:49Z")

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Is there any prospect of integrating `vtkDGCell` support into `VTKHDF`?  
It would be very useful for our finite-element simulations on Unstructured Grid.

> [@New \`vtkCellGrid\` Functionality](https://discourse.vtk.org/t/new-vtkcellgrid-functionality/14640):
>
> Hi all, [vtkCellGrid](https://vtk.org/doc/nightly/html/classvtkCellGrid.html) and its related source/filter classes have had some significant changes committed recently. These changes are summarized below. They are in VTK master and will be in VTK 9.4.0 (branching October 5th). There is also a [ParaView merge request](https://gitlab.kitware.com/paraview/paraview/-/merge_requests/7042) to expose the functionality in ParaView; it will be present in ParaView 5.14.0. Introduction If you are not familiar with vtkCellGrid, you may wish to [read this post](https://discourse.vtk.org/t/discontinuous-galerkin-elements-and-other-novel-cell-types-function-spaces/9209) before continuing. TL;DR: vtkDataSet and its subclasses make many assum…

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