plot_pixels

Catalog.plot_pixels(projection: str = 'MOL', **kwargs) → tuple[Figure, WCSAxes]

Create a visual map of the pixel density of the catalog.

Parameters:

projectionstr, default “MOL”

The map projection to use. Available projections listed at https://docs.astropy.org/en/stable/wcs/supported_projections.html

**kwargs

Additional keyword arguments to pass to plotting call.

Returns:

tuple[Figure, WCSAxes]

Examples

Plot pixel density for a small synthetic catalog:

>>> import lsdb
>>> from lsdb.nested.datasets import generate_data
>>> nf = generate_data(1000, 5, seed=0, ra_range=(0.0, 300.0), dec_range=(-50.0, 50.0))
>>> catalog = lsdb.from_dataframe(nf.compute()[["ra", "dec", "id"]])
>>> fig, ax = catalog.plot_pixels()