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Method and system for realizing high-speed preview of graph

A graphics and high-speed technology, applied in the field of image processing, can solve problems such as high latency, poor user experience, and limited algorithm efficiency of conference whiteboards

Pending Publication Date: 2020-10-20
广州炫视智能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing conference whiteboard is limited by the algorithm efficiency, there is a high delay when dragging or zooming, and the user experience is poor

Method used

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  • Method and system for realizing high-speed preview of graph
  • Method and system for realizing high-speed preview of graph

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Embodiment 1

[0055] see figure 1 , figure 2 and image 3 ,Such as figure 1 As shown, a method for realizing high-speed preview of graphics disclosed in the embodiment of the present invention may include the following steps.

[0056] 101. Drawing an initial graph by using a Canvas plug-in according to an instruction input by a user.

[0057] In the embodiment of the present invention, since the Canvas plug-in is more convenient in the drawing function and has a finer drawing effect, it is used to draw the initial graphics according to the instruction input by the user. In the Canvas plug-in, its coordinate system starts from the origin and extends to the positive direction of the x-axis and the negative direction of the y-axis.

[0058] 102. Acquire first coordinates corresponding to the initial graphics.

[0059] In the embodiment of the present invention, after the user draws the initial graphic based on the Canvas plug-in, the first coordinate corresponding to the initial graphic dr...

Embodiment 2

[0072] see Figure 4 , Figure 4 It is a schematic structural diagram of a system for realizing high-speed preview of graphics (hereinafter referred to as "system") disclosed in an embodiment of the present invention. The system can include:

[0073] The initial drawing unit 401 is used to draw the initial graphics using the Canvas plug-in according to the instruction input by the user;

[0074] a coordinate acquiring unit 402, configured to acquire first coordinates corresponding to the initial graphic;

[0075] A coordinate conversion unit 403, configured to convert the first coordinates into second coordinates corresponding to OpenGL (Open Graphics Library, Open Graphics Library);

[0076] A zoom monitoring unit 404, configured to monitor whether the instruction input by the user is a zoom instruction;

[0077] The data acquisition unit 405 is configured to acquire the zoom magnification and the zoom center included in the zoom command when it is detected that the user ...

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Abstract

The invention relates to the technical field of image processing, and discloses a method and a system for realizing high-speed preview of a graph. The method comprises the steps of: drawing an initialgraph through employing a Canvas plug-in according to an instruction inputted by a user; obtaining a first coordinate corresponding to the initial graph; converting the first coordinate into a secondcoordinate corresponding to an OpenGL (Open Graphics Library); drawing a target graph according to the second coordinate; and outputting the target graph for a user to preview. Visibly, the fine graph is drawn based on the Canvas plug-in, and then the OpenGL is adopted to efficiently move and output the graph, so that the operated graph can be displayed at a high speed for the user to preview after the user operates the graph, and the use experience of the user is improved.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method and system for realizing high-speed preview of graphics. Background technique [0002] When using the conference whiteboard for presentation, in addition to drawing line graphics on the conference whiteboard, it is often necessary to drag or zoom the graphics. The existing conference whiteboard is limited by the algorithm efficiency, and there is a high delay when performing dragging or zooming operations, and the user experience is poor. Contents of the invention [0003] The invention discloses a method system for realizing high-speed preview of graphics, which uses a Canvas plug-in to draw initial graphics according to instructions input by users; obtains the first coordinates corresponding to the initial graphics; converts the first coordinates into corresponding OpenGL (Open Graphics Library) , the second coordinate of the open graphics library); draw th...

Claims

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Application Information

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IPC IPC(8): G06T3/60G06T1/20G06T3/40G06T11/20
CPCG06T3/604G06T1/20G06T3/4084G06T11/206
Inventor 吴振涛
Owner 广州炫视智能科技有限公司
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