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Method and system for synchronizing strokes between different platforms

A stroke and platform technology, applied in the field of image processing, can solve problems such as distortion of special types of strokes, and achieve the effect of increasing portability

Active Publication Date: 2019-03-05
FUJIAN TIANQUAN EDUCATION TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above scheme still adopts the transmission of stroke point information to achieve stroke synchronization, and there is still the problem of special type of stroke effect distortion

Method used

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  • Method and system for synchronizing strokes between different platforms
  • Method and system for synchronizing strokes between different platforms

Examples

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Embodiment 1

[0078] Please refer to figure 2 , the present embodiment provides a method for synchronizing strokes between different platforms, including:

[0079] S1: Obtain the coordinates of the corresponding pixels of each writing point on the screen of the operation terminal according to the drawing sequence of the strokes; specifically, through the sequence of drawing trigger events in response to ACTION MOVE on the screen of the operation terminal device, obtain the sequence of each writing point in operation The coordinates P(x,y) of the corresponding pixel on the end screen; suppose the coordinates of two adjacent writing points are pn-1(x,y) and pn(x2,y2);

[0080] S2: According to the coordinates, obtain the minimum enclosing rectangular area of ​​two adjacent writing points; the minimum enclosing rectangular area is the enclosing primitive, that is, the maximum abscissa of each vertex in the given two-dimensional shape of the two writing points, The minimum abscissa, maximum o...

Embodiment 2

[0108] Please refer to Figure 4 , the present embodiment provides a system for synchronizing strokes between different platforms, including:

[0109]The first acquisition module 1 is used to acquire the coordinates of the corresponding pixels of each writing point on the screen of the operation terminal according to the drawing sequence of the strokes; specifically, it is used to sequentially acquire the coordinates of the drawing trigger events on the screen of the operation terminal. The writing point corresponding to the trigger event corresponds to the pixel coordinates on the screen of the operation terminal.

[0110] The second acquisition module 2 is used to obtain the minimum surrounding rectangular area of ​​two adjacent writing points according to the coordinates; the second acquisition module includes: a first comparison unit 21, which is used to compare the two adjacent writing points. The size of the abscissa, the smaller abscissa mark of the numerical value is ...

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Abstract

The invention provides a method and system for synchronizing strokes between different platforms. The method includes the steps that coordinates of pixel points, corresponding to writing points, on a screen of an operating terminal are obtained according to the drawing order of the stokes; the minimum wrapping rectangular area of the adjacent writing points is obtained according to the coordinates; according to the minimum wrapping rectangular area, a corresponding rectangular canvas picture on the operating terminal is intercepted; the relative position of the rectangular canvas picture on the operating terminal is calculated; the rectangular canvas picture and the relative position of the rectangular canvas picture on the operating terminal are transmitted to a synchronous terminal for displaying. Real-time transmission of the strokes is achieved, it is guaranteed that the stokes on the synchronous terminal are distortionless, and the transportability of the synchronous terminal is further improved; meanwhile, the multimedia displaying effect can be optimized, and user experiences can be improved.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a method and system for synchronizing strokes between different platforms. Background technique [0002] Multimedia interactive technology has been widely used in various occasions. The multimedia interaction process often involves stroke synchronization between different operating systems. Most of the existing stroke synchronization is through the transmission of stroke point information. Although this form can achieve real-time synchronization of strokes, if the multimedia support When there are many types of strokes, such as pencils, brushes, ballpoint pens, and pens for drawing circles and squares, etc., there may be a problem that the stroke effects cannot be displayed synchronously. For example, there will be random white dots in the pencil effect, and in the process of stroke synchronization, only the synchronization of dots is supported, but the algorithm corresponding to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/0487
CPCG06F3/0487
Inventor 蔡专锡刘德建方振华李上杰郭玉湖
Owner FUJIAN TIANQUAN EDUCATION TECH LTD