Units (Basics)

Most values in CAD6 are depending on a unit. This unit can either be a "length unit" (when used for scale-dependent values such as coordinates), a "line unit" (when used for scale-independent values such as line width or text size) or an "angle unit" (when used for angular values). Even though most of the values are stored unit-independent (i.e. always in millimeters based on 1:1-scale), they have to be interpreted unit-dependent.

The following units are available:

Length Units

Micrometer [µm]

0.001 mm

1 / 1 000 mm

Millimeter [mm]

1.0 mm

1 / 1 000 m

Centimeter [cm]

10.0 mm

1 / 100 m

Decimeter [dm]

100.0 mm

1 / 10 m

Meter [m]

1 000.0 mm

1 m

Kilometer [km]

1 000 000.0 mm

1 000 m

Mil [mil]

0.0254 mm

1 / 1 000 inch

Inch [inch]

25.4 mm

1.0 inch

Foot [foot]

304.8 mm

12.0 inch

Yard [yard]

914.4 mm

3.0 foot

Mile [mile]

1 609 344 mm

1 760 yard

Decipoint [dp]

0.035277777777777777777777777777778 mm

1 / 720 inch

Point [pt]

0.35277777777777777777777777777778 mm

1 / 72 inch

Didot Point [bp]

0.37593984962406015037593984962406 mm

1 / 2660 m

Cicero [cic]

4.5112781954887218045112781954887 mm

12 / 2 660 m

Line Units

Micrometer [µm]

0.001 mm

1 / 1 000 mm

Millimeter [mm]

1.0 mm

1 / 1 000 m

Centimeter [cm]

10.0 mm

1 / 100 m

Mil [mil]

0.0254 mm

1 / 1000 inch

Inch [inch]

25.4 mm

1.0 inch

Decipoint [dp]

0.035277777777777777777777777777778 mm

1 / 720 inch

Point [pt]

0.35277777777777777777777777777778 mm

1 / 72 inch

Didot Point [bp]

0.37593984962406015037593984962406 mm

1 / 2 660 m

Cicero [cic]

4.5112781954887218045112781954887 mm

12 / 2 660 m

Angle Units

Degree [deg]

360.0 = 1 counterclockwise rotation

0 degrees at 3 o'clock

New Degree/Gon [gra]

400.0 = 1 counterclockwise rotation

0 degrees at 3 o'clock

Radiant [rad]

2pi = 6.2831853... = 1 counterclockwise rotation

0 degrees at 3 o'clock

Relative [rel]

1.0 = 1 counterclockwise rotation

0 degrees at 3 o'clock

Geographic [geo]

360.0 = 1 clockwise rotation

0 degrees at 12 o'clock