using Jan's code to visualise cavities

the code you need is cavity.py
this can be found in repESP/scripts directory
this code generates van der waals radii (VdW) expansions from the atomic centers??
it uses a cube file to extract the coordinates and grid to visualise the surfaces (the values associated with the mesh points are irrelevant)
you can open this in gaussview, but VMD will be better
in gaussview change the "density" to 1.0 (VdW) or more! say 1.4 VdW