# angles 2.1.1 angles: ^2.1.1 copied to clipboard

Utility library for handling angles in radians, degrees and turns.

# Dart Angles #

Official Dart package

This package provides an `Angle` type seeking to eliminate the use of variable suffixes like `...deg` or `...rad` as well as manual angle unit conversions such as `x * rad2deg` and the likes.

Therefore, this package's raison d'être is not to serve features but to increase code maintainability, thus reducing maintaince cost and bugs.

Angles can be constructed from these units: degrees, radians, gradians and turns.

Unit Quantity of a full turn
Degree 360°
Turn 1

## Sample code #

``````// Various ways to define a half turn:
a0 = Angle.degrees(180.0);
a2 = Angle.turns(0.5);

a0.degrees; // = 180.0
a2.turns;   // = 0.5
``````

## Documentation #

Constructors:

• `Angle.degrees(x)`
• `Angle.radians(x)`
• `Angle.gradians(x)`
• `Angle.turns(x)`

Accessors:

• `.degrees()`
• `.radians()`
• `.gradians()`
• `.turns()`

Trigonometric functions:

• `.sin()`
• `.cos()`
• `.tan()`
• `Angle.asin(x)`
• `Angle.acos(x)`
• `Angle.atan(x)`
• `Angle.atan2(y, x)`
• `Angle.atanFullTurn(y, x)`
• `Angle.cartesian(x, y)`

Utility functions:

• `.toString()`
• `.approximately(other, range)`
• `.ratio(other)`
• `.normalized`

All arithmetic and relational operators are defined on angles as well.

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### Publisher

Utility library for handling angles in radians, degrees and turns.