Functions

The following functions are available globally.


                    
                    
                    pathForArrow(from:to:fromRadius:toRadius:arrowHeadLength:arrowHeadWidth:)

Creates a UIBezierPath representing an arrow. Often the arrow connects two circles, and you may wish to avoid overlapping with those shapes. So, this method actually starts drawing a specified distance away from from and ends the arrow a specified distance before reaching to, as illustrated below:

+           ------------------->      +
from                                  to

The distance between from and the start of the arrow is fromRadius, and the distance between the end of the arrow and to is toRadius. If both are 0, the arrow extends the full distance between the two points.

Requires: fromRadius, toRadius, arrowHeadLength, arrowHeadWidth all >= 0

Declaration

Swift

public func pathForArrow(from: CGPoint,
                         to: CGPoint,
                         fromRadius: CGFloat = 0.0,
                         toRadius: CGFloat = 0.0,
                         arrowHeadLength : CGFloat = 6.0,
                         arrowHeadWidth : CGFloat = 6.0) -> UIBezierPath

Parameters

`from`	where to start the arrow
`to`	where to end the arrow
`fromRadius`	the distance between `from` and the start of the arrow.
`toRadius`	the distance between the end of the arrow and `to`.
`arrowHeadLength`	How long the arrowhead is in points.
`arrowHeadWidth`	How wide the base of the arrowhead is in points.

Return Value

a path representing the arrow