What is the advantage of using raster files with CADD?
Raster files can be a valuable tool in preparing CADD drawings. For example, you might use a scan of an existing floor plan and then use the CADD program to add to or change a portion of the plan in Vector. This approach produces what is called a Hybrid CADD file. When this Hybrid file is plotted, it is often difficult to distinguish between the raster and vector portions.