pyarts3.arts.tmatrix.random

tmatrix.random(radius: float, wavelength: float, aspect_ratio: float, refractive_real: float, refractive_imag: float, angles: int = 19, accuracy: float = 0.001, radius_ratio: float = 1.0, shape: int = -1, distribution: int = 4, b: float = 0.1, gamma: float = 1.0, size_quadrature: int = -1, surface_quadrature: int = 2, lower_radius_ratio: float = 0.9999999, upper_radius_ratio: float = 1.0000001) → pyarts3.arts.tmatrix.RandomResult

Compute a randomly oriented particle size distribution.

The defaults approximate a monodisperse particle using a narrow radius interval. For the original TMD distribution definitions: 1 modified gamma, 2 lognormal, 3 Hansen-Travis power law, 4 gamma, 5 modified power law. b and gamma have the meaning documented in 3rdparty/tmatrix/tmd.lp.f. size_quadrature is NKMAX; surface_quadrature is NDGS. A call evaluates one distribution (NPNAX=1). For distribution=3, radius and b are the effective radius and variance, and Fortran computes the integration bounds. Other distributions use the given lower/upper radius ratios. Radius and shape conventions match fixed().