动画文字像字幕，从下到上卷起并向左移动

Question

我正在开发一个ios应用程序，我坚持使用字幕文本从下到上的动画。我能够使用下面的代码滚动文本像字幕

@property（弱，非原子）IBOutlet CBAutoScrollLabel * autoScrollLabel;

    self.autoScrollLabel.text = @"Some text here some text here some text here Some text here some text here some text here Some text here";
    self.autoScrollLabel.textColor = [UIColor blueColor];
    self.autoScrollLabel.labelSpacing = 35; // distance between start and end labels
    self.autoScrollLabel.pauseInterval = 1.7; // seconds of pause before scrolling starts again
    self.autoScrollLabel.scrollSpeed = 30; // pixels per second
    self.autoScrollLabel.textAlignment = NSTextAlignmentCenter; // centers text when no auto-scrolling is applied
    self.autoScrollLabel.fadeLength = 10.f;
    self.autoScrollLabel.scrollDirection = CBAutoScrollDirectionLeft;
    [self.autoScrollLabel observeApplicationNotifications];

但是现在，如何将这个文本从下到上卷起来并像大门一样向左移动。 任何帮助将不胜感激。 谢谢 ！！