Autotek autocad raster design 2010 ユーザーズマニュアル

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any images that were hidden or unloaded by the mask. To show images
that are hidden, you can select the image frame, then right-click and click
Show Image on the shortcut menu.
You can then use the AutoCAD IMAGECLIP command to turn off the clips
and change the clip boundary if desired. Any image that you insert into
the drawing after converting a mask is visible.
NOTE If you want to remove a mask boundary and restore all clipped images to
their extents, then use the AutoCAD ERASE command to erase the mask boundary.
Quick Reference
Menu
Image  ➤  Mask  ➤  Convert to Image Clip
Raster Design Toolbar
Command Line
imaskconvert
Cropping Images
You can crop raster data within an image or across multiple images.
The only images that are affected are those that are within or partly within
the selected entity or area. When you crop an image, the image frame size
changes to compensate for any removed border data.
Crops use the current transparency color. For example, if you perform a circular
crop on an image, then the area outside of the circle is filled with the
transparency color. If you later change the transparency color, the color of
the cropped area remains the same, but any subsequent crops are drawn in
the new color. For more information, see 
(page 62).
144 | Chapter 6   Modifying Images