A summary of options is included below.
-tthick
minimum water shell thickness in Angstrom (default: 10.0)
-rradius
maximum boundary curvature radius in Angstrom (default: 100000.0)
-nngauss
use ngauss gaussians to define solvant boundary (default: 1)
-s write surface statistics to file surface_stat.
-v write volume statistics to file volume_stat.
-ug use gaussians from file gaussians (skip gaussian learning phase).
-ub use boundary definition from file boundary (skip gaussian learning phase and boundary adjustment).
-bulk output only bulk water (i.e., no buried water molecules)
-w output only water molecules (i.e., not the solute)
-ion add ions (na+/cl-) in isotonic/Debye-Hueckel concentration
-psf output XPLOR-script mkpsf.inp for generating a psf-file
infile pdb-file (no extension) of solute (if omitted, a water droplet is created)
outfile
pdb-file (no extension) of water shell