| -datatype u | Force writing of a new data type (default float). |
| -size 100,120,80 | Mask size (default from model). |
| -sampling 1.5,1.5,1.5 | Sampling (A/pixel; a single value can be given). |
| -origin 0.8,-10,15.7 | Set the origin for the mask. |
| -edge 1.5 | Edge width for model mask (default 1 angstrom). |
| -width 34.8 | Shell mask width (default 1 angstrom). |
| -curved | Flag to indicate curved hull or shell surface (default not). |
| -fast | Use fast but less comprehensive algorithm for shell and hull masks. |
| -smooth 2 | Edge smoothing in pixels (default 0). |
| |