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- 7.1.8 UNDO LAST
-
- The UNDO LAST command provides a limited undo function that is capable of
- reversing the action of commands that modify or delete entities. Commands
- such as DRAW LINE or DRAW ARC etc. are not affected by UNDO LAST as they
- create, as opposed to modify entities. As the name of the command implies,
- UNDO LAST can only undo the last valid command.
-
- When IDENTS is used to select entities in a command that will modify
- entities, the previous state of any selected entities is stored in an undo
- buffer. The UNDO LAST command will then restore modified entities to their
- previous state if required. Commands such as VERIFY ENTITY will not affect
- the undo buffer as this type of command only selects entities for reference
- and not for modification.
-
- The list of commands that may be reversed via UNDO LAST is as follows:
-
- CHANGE ARC CHANGE DEPTH CHANGE DIMENSION
- CHANGE ELLIPSE CHANGE FONT CHANGE LAYER
- CHANGE POLYGON CHANGE STRING CHANGE SYMBOL
- CHANGE TEXT CHANGE TNODE CHANGE XHATCH
- DELETE ENTITY DRAW FILLET EXCLUDE ENTITY
- MIRROR ENTITY MOVE ENTITY ROTATE ENTITY
- SCALE ENTITY STRETCH ENTITY STRETCH WINDOW
- TRIM ENTITY
-
- The following commands reset the undo buffer:
-
- DEFINE SHEET DELETE VIEWPORT
- CLOSE DRAWING SAVE DRAWING
- SELECT ENVIRONMENT [UNDO] UNDO LAST
-
- The number of entities that can be undone from modification be the last
- command is limited by the size of the undo buffer. This is set as default to
- 64K and can be increased or decreased in size using the SELECT ENVIRONMENT
- command.
-
-
- COMMAND FORMAT
-
- #UNDO LAST [CR]
-
- A requester will appear for confirmation that the undo is required. Once
- this is answered OK the action of UNDO LAST cannot be reversed.
-
-