Expert Training

It’s common to start with an existing drawing from another discipline when you want to add, say, an electrical system to a floor plan. But if you remove the landscaping around a building because you don’t need it for the wiring, you may cause a great deal of rework when the landscaping information is needed again. And what if the person who did the landscaping work has, in the meantime, decided to leaf? (Sorry . . .) Unless you know that objects are no longer needed, use the AutoCAD Freeze or Off layer setting to make objects on those layers invisible without obliterating them. These settings are in the Layer Properties Manager dialog box, as described in Chapter 4.