  A full-wave numerical scheme of polarisability tensors evaluation is
presented. The method accepts highly conducting bodies of arbitrary shape and
explicitly accounts for the radiation as well as ohmic losses. The method is
verified on canonical bodies with known polarisability tensors, such as a
sphere and a cube, as well as on realistic scatterers. The theoretical
developments are followed by a freely available code whose sole user input is
the triangular mesh covering the surface of the body under consideration.
