bfieldtools.mesh_impedance.mutual_inductance_matrix

bfieldtools.mesh_impedance.mutual_inductance_matrix(mesh1, mesh2, Nchunks=None, quad_degree=1, approx_far=True, margin=2)

Calculate a mutual inductance matrix for hat basis functions (stream functions) between two surface meshes.

Parameters

mesh1: Trimesh mesh object for mesh 1

mesh2: Trimesh mesh object for mesh 2

Nchunks: int

Number of serial chunks to divide the computation into

quad_degree: int >= 1

Quadrature degree (Dunavant scheme) to use. Self-inductance requires higher degree than mutual inductance

approx_far: Boolean (True)

If True, use approximate calculation for triangles that far from the source triangles using a simple quadrature (see integrals.triangle_potential_approx)

margin: float

Cut-off distance for “far” points measured in mean triangle side length

Returns

M: (Nvertices1 x Nvertices2) array

Mutual inductance matrix between mesh1 and mesh2