Visualize output

In the examples we use Makie.jl for plotting.

Makie comes with a few backends. In the documented examples we use CairoMakie since this backend works well on headless devices, that is, devices without a monitor. Since the documentation is automatically built via GitHub Actions, the CairoMakie backend is necessary. Users that run GeophysicalFlows.jl on devices with a monitor might want to change to GLMakie that displays figures in an interactive window.

In GeophysicalFlows.jl simulations, we can either visualize the fields on-the-fly as the problem is stepped forward or we can save output onto a .jld2 file and after simulation is done load the output and visualize it. Most examples do the former. For a demonstration for how one can save output and load later to process and visualize it have a look at the SingleLayerQG beta-plane forced-dissipative example. For more information about saving output to .jld2 files, see the Output section in the FourierFlows.jl Documentation.