You can remove raster lines, arcs, and circles from bitonal images using raster entity manipulation (REM) delete commands.
When you remove raster entities using these commands, AutoCAD Raster Design toolset automatically cleans up intersections with other raster entities. For example, if you remove a line that bisects a circle, no gap is left in the circle where the line was removed.
In the following illustration, the left displays REM primitive line (shown in red). The illustration on the right shows how the image appears after the primitive line is deleted. The intersections with the circles and vertical line are preserved.
