Autotek autocad raster design 2010 用户手册

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Select the Show Image Frame(s) check box if you want to show the frames
of the images that are outside the mask object. This option is available
only if the Hide Image(s) or Unload Image(s) option is selected.
NOTE If you used the AutoCAD IMAGEFRAME command to turn off image
frames in your drawing, then the Show Image Frame(s) check box is
unavailable and you cannot show the image frames.
Click Close to save your changes.
Quick Reference
Menu
Image  ➤  Mask  ➤  Create
Raster Design Toolbar
Command Line
imask
Changing an Existing Mask Using the Command Line
 (page 343) dialog box by typing -imask
at the command line.
To edit an existing mask using the command line
Enter -imask to display the following prompt:
New or [Select Image Mask]:
Select an existing mask from the drawing. The following prompt is
displayed:
Enter an option [Polygonal/Rectangular/Convert/prOperties/eXit]<eXit>:
Do one of the following
Enter p to redefine the mask using a polygon.
Enter r to redefine the mask using a rectangle.
140 | Chapter 6   Modifying Images