| Name | Value | Description |
|---|---|---|
| cdrEnvelopeHorizontal | 0 | Specifies horizontal envelope mapping |
| cdrEnvelopeOriginal | 1 | Specifies original envelope mapping |
| cdrEnvelopePutty | 2 | Specifies putty envelope mapping |
| cdrEnvelopeVertical | 3 | Specifies vertical envelope mapping |