As polygons

By representing every cell as a polygon, we can use vector visualization tools to plot HEALPix maps.

Existing software:

• xdggs’ explore (using lonboard): multi-dimensional data, single variable, WebMercator projection, spherical only

plotting using xdggs and lonboard

import xdggs

ds = xdggs.tutorial.open_dataset("air_temperature", "healpix").dggs.decode()
ds["air"].dggs.explore(alpha=0.8)