2.7.2. Using the ParaView plugin

After connecting the client to the running pvserver process:

1. Verify the plugin – in Tools ‣ Manage Plugins… ensure dispatch_reader_plugin shows up as Loaded. Press Load Selected or Load New… if necessary.

2. Open the run directory – choose File ‣ Open and pick the run’s params.nml file (or another directory inside data/run).

3. Select one or more snapshots – ParaView lists the available *.scr/*.dat files; pick the ones you want to visualise.

4. Choose level range – use the reader properties (e.g. Level Min / Level Max) to select the AMR levels to load.

5. Optional derived fields – the Expression property accepts any valid Python expression referencing symbolic arrays such as B, B2, d, etc. Specifically, the 10-logarithm of the Alfven speed is: log10(B2/d)/2.

6. Click Apply and wait for the data to be loaded. Larger level ranges take longer.

7. Start visualising – apply the filters you need (volume rendering, streamlines, etc.). A ResampleToImage workaround may be necessary for the current DISPATCH plugin.