sample_sphere

gammapy.utils.random.sample_sphere(size, lon_range=None, lat_range=None, random_state='random-seed')

Sample random points on the sphere.

Reference: http://mathworld.wolfram.com/SpherePointPicking.html

Parameters:

size : int

Number of samples to generate

lon_range : Angle, optional

Longitude range (min, max)

lat_range : Angle, optional

Latitude range (min, max)

random_state : {int, ‘random-seed’, ‘global-rng’, RandomState}

Defines random number generator initialisation. Passed to get_random_state.

Returns:

lon, lat: `~astropy.coordinates.Angle`

Longitude and latitude coordinate arrays