The CAD Nominal Places = box allows you to enter a numerical value that defines how many decimal places PC-DMIS will use before rounding when it uses CAD data. For example, if a CAD circle has a diameter of 3.9995, and the value is set to 3, PC-DMIS will round its value to 4.000. This option only affects the way PC-DMIS interprets CAD data in the SHEET METAL MEASUREMENT mode. If the value is set to 0, PC-DMIS will not round off any values.