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Drawing Units

CAD drafting Drawing Units 0    Ribbon: Home – Properties > CAD software Drawing Units 1 Units

CAD drawing Drawing Units 2   Menu: Format – CAD drafting Drawing Units 3 Units…

CAD software Drawing Units 4 Command line: UNITS, UN

The command opens the Drawing Units dialog box, where you can define the format and accuracy of the linear and angle units.

By default, the base direction to measure angles is to the right of the initial point (East). Angles should be measured in a counter clockwise direction to give positive numbers.

CAD drawing Drawing Units 5




Current format of linear units.

Available formats in the drop-down list:

·         Architectural

·         Decimal

·         Engineering

·         Fractional

·         Scientific


Accuracy of current linear units.



Current format of angle units.

Available formats in the drop-down list:

·         Deg/Min/SEC

·         Grads

·         Decimal degrees

·         Radians

·         Surveyor’s units


Accuracy of current angle units.

Base Angle:

Direction of base angle.

Available formats in the drop-down list:

·         East

·         North

·         West

·         South

·         Pick angle – by specifying two points in the graphic area.


To change positive direction to measure angles to clockwise.

Display in “input” format

Enables/disables display of drawing units without spaces.

Insertion scale

Units to scale inserted content:

Units to measure blocks and external references, inserted in a document. If a block or inserted document was created with units which do not coincide with the units set in this section, the block or inserted document will be scaled to the specified units.  Scale is defined by the ratio of units in an inserted document and a current document.

If the Undefined option is selected, the insertion is performed without scaling.

Sample output

Preview of current linear and angle units set in the dialog box.


Units for specifying the intensity of light:

Selecting light intensity units and lighting type. The following options are available in the drop-down list:

·         Generic – standard lighting is included without lighting fixtures, lighting intensity units are not used (system variable LIGHTINGUNITS = 0);

·         American – photometric lighting is included, American units of lighting intensity are used - Foot-candle (LIGHTINGUNITS = 1);

·         International – photometric lighting is included, the lighting intensity units of the International System of Units (SI) are used - Lux (LIGHTINGUNITS = 2, default value).

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