D2V — Windows GUI to convert LIGGGHTS/CFDEM dump files to VTK (for ParaView)

Hi everyone,

I made a small Windows GUI tool that converts dump files from LIGGGHTS/CFDEM into VTK files you can open directly in ParaView. It’s called D2V (dump→VTK). Source and binaries are here:
https://github.com/opendemjapan/D2V-dump2vtk

What it does

• Reads DEM-style dump files (multi-timestep supported).
• Lets you map columns (e.g., x y z, id, type, radius, velocities, etc.) to VTK point/scalar data.
• Writes one VTK file per timestep for quick visualization in ParaView.

How to use

1. Download from the repository.
2. Launch the app and select your dump file.
3. Set the column mapping and output folder/base name.
4. Click Convert to generate the VTK files.

Why share
This is meant to remove the friction of scripting one-off conversions and make it easier to inspect CFDEM/LIGGGHTS results in ParaView.

Feedback, issues, and pull requests are welcome. If you try it with your cases and hit a problem or have a feature request, please open an issue on GitHub.

— Thanks!