PolarCoord class

Canonical mathematical concept of a "polar coordinate".

Polar coordinates are defined by an angle, and a distance from the origin, e.g., (100, 45°). The distance is often referred to as the radius.

Polar coordinates offer an alternative expression to positions other than Cartesian coordinates. Polar coordinates naturally lend themselves to radial problem spaces, e.g., clock and watch faces, radial progress indicators, radial thermostat and thermometer displays, etc.

Polar coordinates may be added together, subtracted from each other, multiplied and divided by scalars, and rotated by an angle. It is also possible to calculate the angle between polar coordinates.

Available Extensions

• CartesianPolarCoord

Constructors

PolarCoord(double radius, Angle angle)

const

Properties

angle → Angle

final

hashCode → int

The hash code for this object.

no setter, override

radius → double

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

angleBetween(PolarCoord other, {bool? chooseReflexAngle}) → Angle

Returns the Angle between this PolarCoord and other.

isApproximately(PolarCoord other, {num percentVariance = 0.01}) → bool

isEquivalentTo(PolarCoord other) → bool

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

rotate(Angle angle) → PolarCoord

Returns a PolarCoord equivalent to this PolarCoord rotated by the given Angle.

toString() → String

A string representation of this object.

override

Operators

operator *(num scalar) → PolarCoord

Multiplies the radius and angle of this PolarCoord by the given scalar.

operator +(PolarCoord other) → PolarCoord

Adds other to this PolarCoord.

operator -(PolarCoord other) → PolarCoord

Subtracts other from this PolarCoord.

operator /(num scalar) → PolarCoord

Divides the radius and angle of this PolarCoord by the given scalar.

operator ==(Object other) → bool

The equality operator.

override

operator unary-() → dynamic

Inverts the direction of this PolarCoord, i.e., rotates it by 180°.