-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. |