sumOf

@JvmName(name = "sumOfLength")

inline fun <T> Iterable<T>.sumOf(selector: (T) -> Length): Length(source)

Calculates the sum of Length values produced by selector for each element.

@JvmName(name = "sumOfArea")

inline fun <T> Iterable<T>.sumOf(selector: (T) -> Area): Area(source)

Calculates the sum of Area values produced by selector for each element.

@JvmName(name = "sumOfRotation")

inline fun <T> Iterable<T>.sumOf(selector: (T) -> Rotation): Rotation(source)

Calculates the sum of Rotation values produced by selector for each element.