differt.em.propagate_wavefront

propagate_wavefront(paths, mesh, tx_wavefront=0.0)

Propagate the wavefront curvature state along the given traced paths.

Performs a scan along each path’s segments and interaction bounces, transporting principal radii and axes through free space, reflections, transmissions, and diffractions.

Parameters:

• paths (TracedPaths) – The traced paths.

• mesh (Mesh) – The scene triangle mesh.

• tx_wavefront (Float[ArrayLike, "*#batch"] | tuple[Float[ArrayLike, "*#batch"], Float[ArrayLike, "*#batch"]] | tuple[Float[ArrayLike, "*#batch"], Float[ArrayLike, "*#batch 3"], Float[ArrayLike, "*#batch"], Float[ArrayLike, "*#batch 3"]] | WavefrontState | None) – The transmitter wavefront curvature configuration.

Return type:

PathWavefront

Returns:

A PathWavefront instance carrying the final state, per-bounce incident curvatures, segment radii, and total spreading factor.