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Remote headnote moving and scaling synchronization method and system

A remote, zooming technique used in the input/output process of data processing, instrumentation, electrical digital data processing, etc.

Inactive Publication Date: 2016-05-11
GUANGZHOU SHIRUI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a remote annotation movement, zoom synchronization method and system for the problem of remote control interactive intelligent flat panel synchronously displaying annotation movement and scaling

Method used

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  • Remote headnote moving and scaling synchronization method and system
  • Remote headnote moving and scaling synchronization method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In order to achieve the purpose of remotely controlling the synchronous display of the interactive smart tablet by the mobile device, the present invention provides Embodiment 1 of a synchronization method for remote annotation movement and zooming; figure 2 It is a schematic flow chart of Embodiment 1 of the synchronization method for remote annotation movement and zooming in the present invention, as shown in figure 2 shown, including the following steps:

[0032] Step S210: Obtain the coordinate set of the current screen image drawn and stored on the drawing canvas; the current screen image includes annotation handwriting acquired according to the screen annotation event;

[0033] Step S220: when the screen touch event is detected, obtain the translation displacement and / or zoom ratio of the screen touch event;

[0034] Step S230: Translate and / or scale the coordinate set according to the translation displacement and / or scaling ratio to obtain a translation and / or...

Embodiment 2

[0078] In order to achieve the purpose of remotely controlling and synchronously displaying the interactive smart tablet by the mobile device, the present invention provides Embodiment 2 of a synchronization method for remote annotation movement and zooming; the main difference between this embodiment and the above-mentioned Embodiment 1 is that this embodiment can The terminal performs synchronous zooming and / or panning operations on the screenshot image of the current screen image of the smart tablet and the annotation handwriting; image 3 It is a schematic flowchart of Embodiment 2 of the synchronization method for remote annotation movement and zooming in the present invention, as shown in image 3 As shown, taking the mobile device of the Android system as an example, the following steps are included:

[0079] Step S310: The mobile device (mobile terminal) captures the screen and draws the background, so that the screens displayed on the mobile terminal and the smart tab...

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Abstract

The invention relates to a remote headnote moving and scaling synchronization method and a remote headnote moving and scaling synchronization system. The remote headnote moving and scaling synchronization method comprises the following steps: acquiring a coordinate set of a current screen image drawn and stored on a drawing canvas; when monitoring a screen touch event, acquiring a translational displacement and / or a scaling ratio of the screen touch event; according to the translational displacement and / or the scaling ratio, translating and / or scaling the coordinate set to obtain a translated and / or scaled transformation matrix; according to the transformation matrix, transforming an original coordinate system of the current screen image to obtain a transformed coordinate system; according to the transformed coordinate system, redrawing the current screen image to obtain a redrawn screen image; according to the transformed coordinate system, calculating to obtain coordinate information and a scaling multiple of the redrawn screen image; sending the coordinate information and the scaling multiple to an interactive smart tablet; and executing corresponding operations by the interactive smart tablet according to the coordinate information and the scaling multiple.

Description

technical field [0001] The invention relates to the technical field of interactive smart panels, in particular to a method and system for synchronizing remote annotation movement and zooming. Background technique [0002] The interactive smart tablet (Windows device) has functions such as annotation, drawing, and multimedia entertainment, and integrates many technologies such as human-computer interaction, flat panel display, multimedia information processing, and network transmission. Preferred solution for demo. When using an interactive smart tablet in a classroom or meeting scene, when annotating and explaining the content on the screen, the students or staff sitting in the back row often cannot see the content on the screen clearly because the displayed pictures or text are too small. It is necessary to move or zoom the content on the screen. [0003] During the implementation process, the inventors found at least the following problems in the traditional technology: ...

Claims

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Application Information

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IPC IPC(8): G06F3/14G06F3/0485G06F3/0488
CPCG06F3/14G06F3/1454G06F3/0485G06F3/0488G06F2203/04808
Inventor 杨利侠
Owner GUANGZHOU SHIRUI ELECTRONICS
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