Define Custom Units dialog box

Used to define customized settings for Master Unit and Sub Unit.

Opens when the Custom Units button is selected, in the Working Units category of the DGN File Settings dialog box.

Define Custom Units dialog displaying Standard Units

Define Custom Units dialog displaying Custom Units

Master Unit Definition

Contains controls for selecting a Standard Unit or defining a Custom Unit to be your design Master Unit.

Use Standard Unit

If selected, the standard Master Unit settings are used. That is, Metric or English units of measurement that are recognized by MicroStation.

• Unit
— This option menu lets you define the largest measuring unit (Master Unit). If changed, the Master Unit field in the Working Units category on the DGN File Settings dialog box also changes.

• Label
— Lets you set the standard abbreviation for the measuring unit selected in the Unit field. For example, if Unit is Yards then the default Label is yd. If changed, the Label field in the Working Units category on the DGN File Settings dialog box also changes.

Define Custom Unit

If selected, you can create a custom Master Unit, which is defined relative to one of the recognized Metric or English units. That is, you define how many custom units is equivalent to a known measurement in one of the recognized units of the Metric or English systems.

• How Many (custom units)
— Lets you set the number of custom units (of the unit of measurement in the Label field) that is a Master Unit.

• Label
— Lets you define the label for the largest unit of measurement that you most often use that is not in the standard Master Unit list. For example, if you use nautical miles as your unit of measurement, you could put NMiles as your label.

If you change the unit of measurement, the Master Unit field on the Working Units category of the DGN File Settings dialog box automatically changes to Custom MU and the Label changes to match the changed unit of measurement.

• How Many (standard units)
— Sets the number of Standard Units (English or Metric) that is equal to the Custom Unit.

• Unit
— Lets you define the standard unit of measurement that equates to the custom units you have established. For example, if you had made 1 nautical mile as your custom Master Unit, you can equate this to the correct value of Standard Unit measurements such as Miles.

Sub Unit Definition

Contains controls for selecting a Standard Unit or defining a Custom Unit to be your design Sub Unit.

Use Standard Unit

If selected, the standard Sub Unit settings are used. That is, Metric or English units of measurement that are recognized by MicroStation.

• Unit
— This option menu lets you define the smallest convenient measuring unit (Sub Unit). If changed, the Sub Unit field in the Working Units category on the DGN File Settings dialog box also changes.

• Label
— Lets you set the standard abbreviation for the measuring unit selected in the Unit field. For example, if Unit is Yards then the default Label is yd. If changed, the Label field in the Working Units category on the DGN File Settings dialog box also changes.

Define Custom Unit

If selected, you can create a custom Sub Unit, which is defined relative to one of the recognized Metric or English units. That is, you define how many custom units is equivalent to a known measurement in one of the recognized units of the Metric or English systems.

• How Many (custom units)
— Lets you set the number of custom units (of the unit of measurement in the Label field) that is a Sub Unit.

• Label
— Lets you define the smallest unit of measure that you most often use that is not in the standard Master Units list. For example, if you use points as your unit of measurement, you could put PNTS as your label. If you changed the unit of measurement, the Sub Unit field on the Working Units category of the DGN File Settings dialog box automatically changes to Custom MU and the Label changes to match the changed unit of measurement.

• How Many (standard units)
— Sets the number of Standard Units (English or Metric) that is equal to the Custom Unit.

• Unit
— Lets you define the standard unit of measurement that equates to the custom units you have established.