Structure
DoublePoint
public struct DoublePoint : Equatable A DoublePoint represents a location in a two-dimensional plane.
Relationships
Conforms To
Equatable
Initializers
init()
public init() Creates a new DoublePoint located at (x:0, y:0)
init(x:y:)
public init(x:Double, y:Double) Creates a new DoublePoint from the specified coordinates
Parameters
| Name | Type | Description |
|---|---|---|
| x | Double |
The x coordinate |
| y | Double |
The y coordinate |
init(x:y:)
public init(x:Int, y:Int) Creates a new DoublePoint from the specified coordinates
Parameters
| Name | Type | Description |
|---|---|---|
| x | Int |
The x coordinate |
| y | Int |
The y coordinate |
init(_:)
public init(_ point:Point) Creates a new DoublePoint from the specified Point
Parameters
| Name | Type | Description |
|---|---|---|
| point | Point |
The source of the x, y coordinates |
Properties
x
public var x : DoubleThe coordinate along the x-axis
y
public var y : DoubleThe coordinate along the y-axis
zero
static public let zero The point (x:0.0, y:0.0)
Methods
distanceSquared(target:)
public func distanceSquared(target:DoublePoint) -> Double Calculates the square of the distance between this point and another
Parameters
| Name | Type | Description |
|---|---|---|
| target | DoublePoint |
The target point to which to calculate the distance |
Returns
The square of the distance to a target point
distance(target:)
public func distance(target:DoublePoint) -> Double Calculates the distance between this point and another
Parameters
| Name | Type | Description |
|---|---|---|
| target | DoublePoint |
The target point to which to calculate the distance |
Returns
The distance to a target point
DoublePoints(_:)
static public func DoublePoints(_ points: [Point]) -> [DoublePoint] Converts an array of Points to an array of DoublePoints
Operators
==
static public func == (lhs:DoublePoint, rhs:DoublePoint) -> Bool Equivalence operator for two DoublePoints
+
static public func + (left: DoublePoint, right: DoublePoint) -> DoublePoint Addition operator for two DoublePoints
+=
static public func += (left: inout DoublePoint, right: DoublePoint) Compound addition operator for two DoublePoints
-
static public prefix func - (doublePoint: DoublePoint) -> DoublePoint Negation operator for a DoublePoint
-
static public func - (left: DoublePoint, right: DoublePoint) -> DoublePoint Subtraction operator for two DoublePoints
-=
static public func -= (left: inout DoublePoint, right: DoublePoint) Compound subtration operator for two DoublePoints