Utility library for handling angles in radians, degrees and turns.
Dart Angles #
Say goodby to naming suffixes like
...rad, manual angle conversions like
x * rad2deg and the inevitable mess when mixing up multiple angle units in your code.
This library provides a single class named
Angle, wrapping your angle variables in a far more readable way, whereas raw doubles aren't very expressive about how they store their values. One can create an angle from various units, including degrees, radians, gradians and turns.
// Various ways to define a half turn: a0 = Angle.fromDegrees(180.0); a1 = Angle.fromRadians(math.pi); a2 = Angle.fromTurns(0.5); a0.degrees; // = 180.0 a1.radians; // = 3.1415... a2.turns; // = 0.5
Trigonometic functions are defined on instances:
x = Angle.asin(0.3); y = x.sin; // = 0.3
Angles are immutable by design, but there are operators like
+, creating new angles:
// 270°: x = Angle.halfTurn() + Angle.fromDegrees(90.0);