| Type: | String |
| Saved in: | Drawing |
| Initial value: | "" |
Specifies a text prefix or suffix (or both) to the alternate dimension measurement for all types of dimensions except angular. For instance, if the current Units mode is Architectural, DIMALT is turned on, DIMALTF is 25.4, DIMALTD is 2, and DIMAPOST is set to "mm," a distance of 10 units would be edited as 10"[254.00mm]. To turn off an established prefix or suffix (or both), set it to a single period (.).