| -h | Prints usage information. |
| -A | Calculate absolute transform, default. |
| -R | Calculate relative transform. |
| -1 | Transform 1 is relative (defefault absolute). |
| -2 | Transform 2 is relative (defefault is absolute). |
| -3 | Command-line transform is 3D. |
| -a | Rotation about the z-axis. |
| -b | Rotation about the y-axis. |
| -i | Invert: Reflection about the y-axis. |
| -I | Inverse: Output the inverse of the product. |
| -s | Scale factor. |
| -u | Shear strength. |
| -v | Shear angle in x-y plane. |
| -w | 3D shear angle. |
| -x | Column (x) translation. |
| -y | Row (y) translation. |
| -z | Plane (z) translation. |