| -axis y | Project down a major axis (x, y, z or 0, 1, 2). |
| -View 0.3,-0.5,0.8,33 | View to generate symmetry-related projections. |
| -Tilt -65,72,2.5,55 | Tilt series of projections with angle min, max, step and axis angle. |
| -side 15 | Generate side view projections within the given angle from the equator. |
| -compare | Compare projections (default off). |
| -random 24 | Generate a number of random projections. |
| -asu | Change to views to fit into the asymmetric unit. |
| -edgewidth 80 | Gaussian width of edge to background (default 0). |
| -verbose 7 | Verbosity of output. |
| -datatype u | Force writing of a new data type. |
| -origin 10,-10,20 | Origin for rotation (voxels, default 0,0,0). |
| -sampling 2,3.5,1 | Sampling (angstrom/voxel, a single value sets all three). |
| -fill 127 | Fill value for resizing (default background). |
| -symmetry D6 | Symmetry: Point group identifier. |
| -angles 8,6 | Step sizes for theta and phi in the asymmetric unit, one value sets both. |
| -fullasu | Full asymmetric unit (default half). |
| -noinplanerotation | No in-plane rotations applied to projections (default applied). |
| -unitcell | 10,23,77,90,90,90 Unit cell parameters. |
| -Postscript plot.ps | Output postscript file with a plot of projection vectors. |