Scenario: Render S-102 bathymetry to PNG

Why it matters

This is the fastest path to a visual output from an HDF5 coverage product.

Quick win

s100 render bathy.h5 bathy.png --palette day -w 1600 -h 1200

Expected result: bathy.png with depth colouring.

Deep dive

1. Inspect the file first:

   s100 info bathy.h5
   

2. Render with alternate palette:

   s100 render bathy.h5 bathy-night.png --palette night
   

3. Render through the .NET facade for integration:

   using var dataset = S100Dataset.Open("bathy.h5");
   using var renderer = new PngS100DatasetRenderer();
   byte[] png = await renderer.RenderAsync(dataset);
   File.WriteAllBytes("bathy.png", png);
   

Troubleshooting

Warning

Some coverage formats are not headless-renderable. Check s100 info and CanRenderHeadless before automation.

Next step

• Compose S-101 + S-102
• Command-line rendering