2011

If no dimension was created in the current session, you are prompted to select
a linear, ordinate, or angular dimension to use as the base for the baseline
dimension.
List of Prompts
The following prompts are displayed.
Select base dimension: Select a linear, ordinate, or angular dimension
Otherwise, the program skips this prompt and uses the dimension object that
was last created in the current session. If the base dimension is linear or
angular, the following prompt is displayed:
Specify a second extension line origin or [“Undo”/“Select”] <Select>: Specify
a point, enter an option, or press Enter to select a base dimension
If the base dimension is ordinate, the following prompt is displayed:
Specify feature location or [Undo/Select] <Select>:
To end the command, press Enter twice, or press Esc. The current dimension
style determines the appearance of the text.
Second Extension Line Origin By default, the first extension line of the base
dimension is used as the extension line origin for the baseline dimension. To
override this default behavior, explicitly select the base dimension; the
extension line origin becomes the extension line of the base dimension closest
to the pick point of the selection. When you select a second point, the baseline
dimension is drawn and the Specify a Second Extension Line Origin prompt
is redisplayed. To end the command, press Esc. To select another linear,
ordinate, or angular dimension to use as the basis for the baseline dimension,
press Enter.
580 | Chapter 5 D Commands