Fixed calculation for relative angle.

kirbyt · Mar 1, 2012 · a2013cd · a2013cd
1 parent beb4be3
commit a2013cd
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/KnobSample/KnobSample/ViewController.m b/KnobSample/KnobSample/ViewController.m
@@ -54,7 +54,7 @@ - (void)viewDidLoad
    [[self knobImageView] setUserInteractionEnabled:YES];
 
    // Allow rotation between the start and stop angles.
-   [self setStartAngle:270.0];
+   [self setStartAngle:-90.0];
    [self setStopAngle:90.0];
 
    [self resetKnob:self];
@@ -64,7 +64,7 @@ - (void)rotated:(KTOneFingerRotationGestureRecognizer *)recognizer
 {
    CGFloat degrees = radiansToDegrees([recognizer rotation]);
    CGFloat currentAngle = [self currentAngle] + degrees;
-   CGFloat relativeAngle = fabsf(fmodf(currentAngle, 360.0));  // Converts to angle between 0 and 360 degrees.
+   CGFloat relativeAngle = fmodf(currentAngle, 360.0);  // Converts to angle between 0 and 360 degrees.
 
    BOOL shouldRotate = NO;
    if ([self startAngle] <= [self stopAngle]) {