2011

NOTE The transparency color is stored in the drawing as an AutoCAD Map 3D
custom object. If you send the drawing to other users, they can see the
transparency color only by opening the drawing in AutoCAD Map 3D or Autodesk
Raster Design. If they open the drawing in AutoCAD, they see a message that
AutoCAD cannot reference the custom object and will not display the transparent
color.
You can also change the opacity of an entire raster image, so that the image
is translucent and items below it are visible.
See also:
■
Overview of Adding Rasters and Surfaces (page 437)
■ Using Other Raster Image Formats (page 453)
To make an image transparent
1 Select the image.
2 Right-click the image. Click Properties.
3 In the Properties palette, select Transparency.
4 Click the down arrow at the right of the box and select Yes.
Specify which color will be transparent.
To change the color that is transparent
1 Zoom in close to the image so that you can accurately select the color.
2 Click the image frame.
NOTE If you are zoomed so you cannot see the image frame, press Shift +
left-click to select the image.
3 Right-click the image. Click Properties.
4 In the Properties palette, select Transparency Color.
If Transparency Color does not appear in the Properties palette, the image
may not be loaded or the Raster Extension may not be loaded. To load
the image, select the image. Right-click the image ➤ Image ➤ Show
Image. To load the Raster Extension, choose an image command such as
Insert An Image.
500 | Chapter 3 Bringing In Data