simon gladman FlexMonkey

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FlexMonkey / gist:c73083f6cb3abe27a616

Created January 20, 2016 12:03

CIVector extension to convert to array of CGFloat

	extension CIVector
	{
	func toArray() -> [CGFloat]
	{
	var returnArray = [CGFloat]()

	for i in 0 ..< self.count
	{
	returnArray.append(self.valueAtIndex(i))
	}

FlexMonkey / gist:7b66b0df7ab866dbc754

Created January 14, 2016 08:43

Handy UIColor extensions: multiply(), getRGBA() and getHex()

	import UIKit

	typealias RGBA = (red: CGFloat, green: CGFloat, blue: CGFloat, alpha: CGFloat)

	extension UIColor
	{
	func multiply(value: CGFloat) -> UIColor
	{
	let newRed = getRGBA().red * value
	let newGreen = getRGBA().green * value

FlexMonkey / gist:a18b0509ce8d2068457e

Created January 14, 2016 05:47

CoreImage Theshold filter based on custom CIColorKernel

	class ThresholdFilter: CIFilter
	{
	var inputImage : CIImage?
	var threshold: CGFloat = 0.75

	let thresholdKernel = CIColorKernel(string:
	"kernel vec4 thresholdFilter(__sample image, float threshold)" +
	"{" +
	" float luma = (image.r * 0.2126) + (image.g * 0.7152) + (image.b * 0.0722);" +

FlexMonkey / gist:3b500550fe51fa659d88

Created January 13, 2016 13:52

distanceTo() - extension to CGPoint returns distance between two points

	extension CGPoint
	{
	func distanceTo(point: CGPoint) -> CGFloat
	{
	return hypot(self.x - point.x, self.y - point.y)
	}
	}

FlexMonkey / gist:1cb50efd7427c37298af

Created January 13, 2016 13:51

interpolatePointsWithHermite() - adds a Hermite interpolated curve to a UIBezierPath()

	extension UIBezierPath
	{
	func interpolatePointsWithHermite(interpolationPoints : [CGPoint])
	{
	let n = interpolationPoints.count - 1

	for var ii = 0; ii < n; ++ii
	{
	var currentPoint = interpolationPoints[ii]

FlexMonkey / gist:e4c004b5a7a2897f6435

Created January 12, 2016 15:51

aspectFitInRect() - returns biggest rect of current aspect ratio that will fit into target

	extension CGRect
	{
	func aspectFitInRect(target target: CGRect) -> CGRect
	{
	let scale: CGFloat =
	{
	let scale = target.width / self.width

	return self.height * scale <= target.height ?
	scale :