| Parameter Name | Units | Type | Default | Description |
| L | double | 0.0 | length | |
| X_MAX | double | 0.0 | half-width in x | |
| Y_MAX | double | 0.0 | half-width in y | |
| DX | double | 0.0 | misalignment | |
| DY | double | 0.0 | misalignment | |
| OPEN_SIDE | STRING | NULL | which side, if any, is open (+x, -x, +y, -y) |