Using REM to Delete Raster Data

You can use REM objects to delete raster data from your image.

First, transform the raster data to REM objects, using one of three methods:

• Convert individual line, arc, and circle entities to REM primitives. For more information, see Defining REM Primitive Objects.
• If the raster data can be defined with a rectangle, circle, or polygon, create a REM region. For more information, see Defining REM Region Objects.
• If you want to remove a set of raster entities (lines, circles, arcs, or polygons) in an area, or entities that are connected to each other, create a REM enhanced bitonal region. For more information, see Defining REM Enhanced Bitonal Regions.

Then delete the REM objects.

If you have selected a primitive object or an enhanced bitonal region object, the object is removed and AutoCAD Raster Design toolset cleans up the intersection.

In the following illustration, the left panel displays a REM primitive line in red. The illustration on the right shows how the image appears after the primitive line is deleted. The integrity of the circles and vertical line are preserved.

You can also use REM delete commands to delete raster primitives. For more information, see Removing Raster Entities Using REM Commands.