Autotek autocad raster design 2010 用户手册

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Close the Properties dialog box.
Image Layer
When you insert an image, it is inserted onto the current AutoCAD layer.
However, you can move the image to another layer. The following layer
properties allow you to control image display, image editing, and image saving.
Function
Layer Proper-
ties
Turns images on and off. Images that are off are still regen-
erated.
On/Off
When a layer is off, you can save an image to the layer, but
you cannot edit an image on that layer.
Saves the image. You cannot display or edit an image on
a frozen layer. The system does not update a frozen layer.
Thaw/Freeze
Displays and saves an image on a locked layer. You cannot
edit a locked layer.
Unlocked/Locked
A bitonal image can use the color of the layer. For more
information, see 
 (page
61).
Color
TIP If you have multiple images on top of each other, and you do not want to
rub, crop, or mask all of the images, you can lock a layer containing an image you
do not want modified.
To move an image to a different layer
Click the frame of the image(s) you want to move to a different layer,
then right-click ➤ Properties.
TIP If you are zoomed in and cannot see the image frames, press Shift +
left-click to select the image(s).
Click the Layer property, then select a new layer from the list.
Close the Properties dialog box.
60 | Chapter 4   Changing Image Properties