I'm doing a lot of work with CMB maps at the moment, most of which are pixelised using Healpix. It’s good to be able to visualise the maps, and the Healpix distribution comes with a utility to do just that: map2gif. Unfortunately, map2gif has somewhat sparse documentation – there are a few options that aren't documented and that sort of thing. I ended up poking through the source code to find some options, so I figured I should share them here to make other peoples’ lives a little easier.
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