Below are the accompanying files to the paper 
The boundary element method for light scattering by ice crystals and its implementation in BEM++

NB: these files are for BEM++ 2.0 and will not work for the newest version. For python scripts suitable for the most recent version of BEM++, see my GitHub or please contact me at samuelpgroth(@)

In order to use them, first download and install BEM++ from

The mesh files were generated with Gmsh which is available from

This project is also mentioned on the ScattPort website where other open-source methods for light scattering problems can be found.

Samuel Groth,
Aug 4, 2015, 5:58 AM