coolio107

- (UIInterfaceOrientation)relativeInterfaceOrientationFromRotationAngle:(CGFloat)angle {
    NSArray * conversionMatrix = @[ @(UIInterfaceOrientationPortrait),
                                    @(UIInterfaceOrientationLandscapeRight),
                                    @(UIInterfaceOrientationPortraitUpsideDown),
                                    @(UIInterfaceOrientationMaskLandscapeLeft)];
    
    NSInteger oldIndex = [conversionMatrix indexOfObject:@(self.interfaceOrientation)];
    if (oldIndex == NSNotFound)
        return UIInterfaceOrientationUnknown;
    NSInteger newIndex = (oldIndex - (NSInteger)roundf(angle / M_PI_2)) % 4;

coolio107

Keybase proof

I hereby claim:

• I am coolio107 on github.
• I am coolio (https://keybase.io/coolio) on keybase.
• I have a public key whose fingerprint is 615F 1BFA 954F 1493 3897 714A 18E8 7C7B FD6A B005

To claim this, I am signing this object:

coolio107

//
// CoreImage filter chain to blur an arbitrary UIImage
// Input: blur radius and target size
// This is assumed to be called on a background queue, it takes a response block to process the completed, blurred image
// <C> 2013/2014 Joerg Schwieder, use at will; I'd love to see an attribution, of course but don't demand it.
// Contains some pseudo code, see comments.
//


+ (CGFloat)blurRadius {