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The CAD import feature permits Window metafiles, bitmap files, and pdf files to be opened and displayed.
Many CAD programs allow you to export CAD files in the metafile format (they have an .EMF or .WMF extension). If a pdf is used, it is first converted to a bitmap.
The imported drawing is treated as a template over which you draw your walls. The CAD drawing can be turned on and off by pressing the CAD button on the Tool Bar. Once imported the next step is to draw a block outline that roughly overlays the drawing. Then proceed to the Walls input to modify the shape of the perimeter.
Note that when in CAD import view, shear walls appear transparent with diagonal lines, to allow you to see the openings below the walls in your CAD drawing.
The program permits CAD import of separate files for each level of the structure.