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    • 5. 发明授权
    • Tilting to scroll
    • 倾斜滚动
    • US09459705B2
    • 2016-10-04
    • US13846131
    • 2013-03-18
    • FACEBOOK, INC.
    • Michael MatasBrian D. Amerige
    • G09G5/34G06F3/0346G06T15/00G06F3/0485
    • G06F3/0485G06F3/017G06F3/0346G06T15/005
    • In one embodiment, a method includes sending information to display an image on a screen. A scroll range for the image may be determined based on dimensions of the image. An origin position and an initial tilt of a gyroscope may also be determined for the image. Tilt measurements associated with the presentation of the image may be received as the gyroscope detects changes in tilt. A progress parameter may be determined based on at least the scroll range, the origin position, and the initial tilt. A scrolling presentation of the image may then be rendered based on the progress parameter. The scrolling presentation of the image may be smoothed by applying an RK4 solver to the tilt measurements to eliminate jitter due to hand tremors. A virtual spring effect may also be applied to give the scrolling presentation a bouncy effect as the edge of the image is reached.
    • 在一个实施例中,一种方法包括发送信息以在屏幕上显示图像。 图像的滚动范围可以基于图像的尺寸来确定。 也可以为图像确定陀螺仪的起始位置和初始倾斜。 当陀螺仪检测到倾斜的变化时,可以接收与图像呈现相关联的倾斜测量。 可以至少基于滚动范围,原点位置和初始倾斜来确定进度参数。 然后可以基于进度参数呈现图像的滚动呈现。 可以通过将RK4求解器应用于倾斜测量来消除由于手抖动引起的抖动来平滑图像的滚动呈现。 也可以应用虚拟弹簧效应以在达到图像的边缘时给滚动呈现带来弹性效果。