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non composite unit of measure |
Instances of this Class are UnitsOfMeasure that are applied to a single dimension, and so are not intrinsically defined by the functional composition of other units.
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| Instances | angular degree | A plane angle measure. |
| | arc minute | ArcMinute represents a UnitOfMeasure equivalent to 1/60th of an AngularDegree. |
| | arc second | ArcSecond represents a UnitOfMeasure equivalent to 1/60th of an ArcMinute. |
| | milliradian | A Milliradian (SI-symbol mrad, sometimes also abbreviated mil) is an SI derived unit for angular measurement which is defined as a thousandth of a radian (0.001 radian). Milliradians are used in adjustment of firearm sights by adjusting the angle of the sight compared to the barrel (up, down, left, or right). [Wikipedia] |
| | radian | SI plane angle measure. Symbol: rad. It is the angle of a circle subtended by an arc equal in length to the circle's radius. Another definition is: the plane angle between two radii of a circle which cut off on the circumference an arc equal in length to the radius. Radian = m/m = 1. |
| | steradian | SI solid angle measure. Symbol: sr. It is the solid angle of a sphere subtended by a portion of the surface whose area is equal to the square of the sphere's radius. Another definition is: the solid angle which, having its vertex in the center of the sphere, cuts off an area of the surface of the sphere equal to that of a square with sides of length equal to the radius of the sphere. Steradian = m^2/m^2 = 1. |