MathUtils class

Utility functions that are used by both PolyUtils and SphericalUtils.

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Properties

earthRadius → double
The earth's radius, in meters. Mean radius as defined by IUGG.
final

Static Methods

arcHav(double x) → double
Computes inverse haversine. Has good numerical stability around 0.
clamp(double x, double low, double high) → double
Restrict x to the range from low to high.
hav(double x) → double
Returns haversine(angle-in-radians).
havDistance(double lat1, double lat2, double dLng) → double
Returns hav() of distance from (lat1, lng1) to (lat2, lng2) on the unit sphere.
havFromSin(double x) → double
Returns hav(asin(x)).
inverseMercator(double y) → double
Returns latitude from mercator Y.
mercator(double lat) → double
Returns mercator Y corresponding to latitude.
mod(double x, double m) → double
Returns the non-negative remainder of x / m.
sinFromHav(double h) → double
Given h==hav(x), returns sin(abs(x)).
sinSumFromHav(double x, double y) → double
Returns sin(arcHav(x) + arcHav(y)).
wrap(double n, double min, double max) → double
Wraps the given value into the inclusive-exclusive interval between min and max. n The value to wrap.