Autotek autocad raster design 2010 用户手册

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Clearing REM Objects
Clearing a REM object has one of two effects, depending on whether the object
is associated with an image:
If the REM object is associated with an image, clearing the object merges
the raster data defined by the object into the image.
If the REM object is not associated with an image, clearing the object
deletes the object.
For example, you can define a region object and copy it to another area of the
image. Then if you clear all objects, the original object (still associated with
the image) merges into the image, but the copy (not associated with the image)
is deleted.
You cannot do non-REM raster editing operations such as Touchup while REM
objects remain in the image. The clear commands are useful for removing
such objects after a REM editing session.
To clear REM objects
Click Image menu  ➤  Raster Entity Manipulation  ➤  Clear Selected. Select
the REM objects, and press Enter. or
Click Image menu  ➤  Raster Entity Manipulation  ➤  Clear All.
Quick Reference
Menu
Image  ➤  Raster Entity Manipulation  ➤  Clear Selected (or Clear All)
REM Toolbar
 Clear Selected
 Clear All
Object Shortcut Menu
Select REM objects, then right-click ➤ Clear
Command Line
iclear (selected objects)
Clearing REM Objects | 197