QCad User Reference Manual
|  |  | ## Drawing Units QCad supports various units for length and angles. Craftsmen from different professions are used to different ways of displaying numbers. QCad supports the most commonly used formats for displaying lengths and angles and allows you to adjust the precision as required. Please refer also to chapter Drawing Options to learn how to change the unit of a drawing. ### Supported Length Units Metric Units Angstrom (10 E-10m), Nanometers (10 E-09m), Microns (10 E-06m), Millimeters (0.001m), Centimeters (0.01m), Decimeters (0.1m), Meters (1m), Decameters (10m), Hectometers (100m), Kilometers (1000m), Gigameters (10 E06m) Imperial Units Microinches (1/1 000 000 Inch), Mil (1/1000 Inch), Inch, Feet (12 Inches), Yards (3 Feet), Mile (1 760 Yards) Other Length Units Astro (1.49600 * 10 E11 Meters), Lightyear (9.4605 * 10 E15 Meters), Parsec (3.0857 * 10 E16 Meters) ### Display Formats for Lengths Formats for All Length Decimal (e.g. 3.5) Scientific (e.g. 3.5E+01) Fractional (e.g. 3 1/2) Additional Formats for Lengths in Inches Engineering (e.g. 2'-3.56") Architectural (e.g. 2'-3 5/64") ### Supported Angle Units Degrees (full circle = 360°) Radians (full circle = 2 π) Gradians (full circle = 400g) ### Display Formats for Angles Decimal Degrees (e.g. 36.26°) Degrees / Minutes / Seconds (e.g. 36°15'24") Radians (e.g. 0.785r) Gradians (e.g. 100g)
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