... color spaces, which are different ways to choose colors. They include RGB (red-green-blue), RGBA (red-green-blue-alpha), CMYK (cyan-magenta-yellow-black), and CGColor (the underlying Core ... rotationRotates the gridCGContextScaleCTM context, x-scale, y-scaleScales the gridCGContextTranslateCTM context, x-change, y-changeMoves the originFigure 19.2 As these variant transformations ... rotationMakes an array with the rotationCGAffineMakeScale x-scale, y-scaleMakes an array with the scaleCGAffineMakeTranslation x-change, y-changeMakes an array with the translationCGAffineTransformRotate...