Method for representing industrial monitoring graph based on SVG

Abstract

The invention relates to a method for representing an industrial monitoring graph based on SVG, which is characterized in that a circulation control module, a real-time data module and a condition verifying module are added into an SVG file; the circulation control module is used for controlling the speed for the condition verification and graph refreshing; the real-time data module provides an interface used for carrying out data exchange with a real-time data layer; the condition verifying module is used for conducting logic calculation to real-time data, and delivering the verification result to the graphic and cartoon for display; the method comprises the following steps: a. loading SVG basic graphs and cartoons; b. loading external real-time data by the real-time data module, and conducting value assignment on the SVG cartoons; and c. executing conditional logic on the SVG cartoons by the condition verifying module so as to lead the SVG cartoons to be executed according to conditions; and d. realizing the circulation of the steps b and c by the circulation control module. The method can realize the change of the graphs or cartoons along with the change of industrial monitoring real-time data, and is characterized by few occupied resources, high operating speed, strong passing capability, powerful expansibility, concise mode and convenient use.

Description

technical field [0001] The invention relates to the computer industry application field, in particular to a method for representing industrial monitoring graphics based on SVG. Background technique [0002] SVG Scalable Vector Graphics (Scalable Vector Graphics) is a graphic format based on Extensible Markup Language (XML) used to describe two-dimensional vector graphics. This graphic format has the following advantages: 1. It can be scaled arbitrarily without losing precision; 2. Using text to describe the object, people can read the content of the image, and the image can be repaired after being damaged; 3. It can be combined with other XML-based technologies (such as html, xsl); 4. Graphics support animation. Due to these characteristics, SVG is used in various aspects of computer graphics, such as web page animations, flowcharts, presentation documents, etc. [0003] As the standard of international vector graphics, SVG can draw static industrial monitoring graphics, bu...

AI Technical Summary

Problems solved by technology

[0005] The above method has many disadvantages: 1. The workload of drawing graphics is heavy and complicated, and the drawing personnel have to write a large amount of script codes, which is inefficient and error-prone to manually write codes; Only one line of code is needed, but the script code representing the change of this primitive may have dozens or even hundreds of lines

3. The parsing speed is slow when displaying graphics, too many script codes will cause the SVG graphics to display too slowly, and when displaying real-time graphics, many scripts to read real-time data will take up a lot of resources, and the delay time is long, which cannot meet the fast display The need for real-time data

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