You may also use ctrl-z to undo editing changes you have made to the placement of pointnodes and lines.

What you cannot do with ctrl-z is undo actions that change things other than the addition, deletion, or position of pointnodes and lines. For instance, you cannot undo changes to an object's attributes or graphic characteristics by using ctrl-z.

Of course, you may change your mind again. For instance, you might undo more changes than you intended. When this happens you can hold the control key and press the r key (hereafter referred to as "ctrl-r") to redo the change.

If you need to use ctrl-r, you should do so soon after using ctrl-z. Once you begin to add, delete, or edit other objects, the changes that were undone can no longer be redone.

Pressing ctrl-z or ctrl-r will undo or redo a single action. How much of a change is made to an object by ctrl-z or ctrl-r will depend on how the original action changed the object. For instance, some actions will add a single line segment while other actions will add an entire multi-segment line.

Three lines were created as examples in the Adding Lines section.

All segments of the last line were created at one time by copying a path.
 
 

Pressing ctrl-z will undo the entire last line.

All segments of the previous line were also created at one time by copying a line.
 
 

Pressing ctrl-z again will undo that entire line.

The first line was created one segment at a time.
 
 

Pressing ctrl-z again will undo only the last segment added to that line.
 
 

Pressing ctrl-z again will undo the other segment.
 
 

Copyright © 2005 by Dapper Mapper