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QCad User Reference Manual

38. Drawing Units

QCad supports various units for lengths and angles. This is because 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.

38.1. 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)

38.2. 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")

38.3. Supported Angle Units

Degrees (full circle = 360°)
Radians (full circle = 2 ¶)
Gradians (full circle = 400g)

38.4. 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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