发明名称 |
Method for zooming picture with single key |
摘要 |
A method for zooming a picture on a display without a touchscreen is disclosed. The method includes the steps of: a) displaying a picture and a zoom key on a screen; b) defining a rectangular coordinate system in the picture with an origin at a center of the picture; c) defining the zoom key as a point P (x, y) in the perpendicular coordinate system; d) drawing a line through the point P and a reflection point Q at (−x, −y); e) defining points Q1 and Q2 on the line beside the point Q, wherein a distance d between the points Q and Q1 is the same as that between the points Q and Q2, and double the distance d is defined as a simulated operating distance; and; and f) creating a zoom event object corresponding to the simulated operating distance. |
申请公布号 |
US8866973(B1) |
申请公布日期 |
2014.10.21 |
申请号 |
US201314085662 |
申请日期 |
2013.11.20 |
申请人 |
I/O Interconnect Inc. |
发明人 |
Wang Jia-Chi |
分类号 |
H04N9/64;H04N5/44;H04N5/445 |
主分类号 |
H04N9/64 |
代理机构 |
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代理人 |
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主权项 |
1. A method for zooming picture with a single key, comprising the steps of:
a) connecting a handheld computer to a display and displaying a picture from the handheld computer and a zoom key superposed on the picture; b) defining a rectangular coordinate system in the picture with an origin at a center of the picture; c) defining the zoom key as a point P in the perpendicular coordinate system and defining coordinates thereof as (x, y); d) drawing a line through the point P and a reflection point Q at (−x, −y); e) defining points Q1 and Q2 on the line beside the point Q, wherein the point Q1 is between the origin and the point Q, the point Q is between the points Q1 and Q2, a distance d between the points Q and Q1 is the same as that between the points Q and Q2, and double the distance d is defined as an imaginary operating distance; and f) creating a zoom event object corresponding to the imaginary operating distance. |
地址 |
Taipei TW |