When you add a raster image to a map using Data Connect, it appears in a Display Manager layer. You can edit the properties of this layer to add an “opacity” property, and then set that opacity property to a value below 1 to change the transparency of the layer.
To make a raster image transparent
- Add the raster to AutoCAD Map 3D toolset.
You can use any type of raster, including a WMS image. The image does not need to be transparent or have an opacity setting already.
- Right-click the layer containing the image and choose Save Layer.
Save the layer to a .layer file.
- Open the resulting .layer file in a text editor, such as Notepad, and find the <FeatureName> entry.
- Just under the <FeatureName> entry, add the opacity setting, using the following syntax:
<Opacity>0.6</Opacity>
An opacity setting of 1 makes the layer completely opaque. A setting of .1 makes it virtually transparent.
- Save the .layer file.
- In AutoCAD Map 3D toolset, switch the Task Pane to Display Manager and remove the original raster layer.
- Add any other entities to your map that will appear on layers beneath the translucent image, and theme or style those layers.
- Click Data
Load Layer and select the .layer file you edited. The translucent raster image overlays the opaque layers, and they appear beneath it.