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A svg-based background map generation method for power system geographic wiring diagrams

A technology of geographic wiring diagram and power system, applied in the direction of graphic image conversion, map/plan/chart, image data processing, etc., can solve problems such as inconsistency, and achieve the effect of improving user-friendliness

Active Publication Date: 2020-11-10
CHINA ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a method for generating a background map of the geographic wiring diagram of a power system based on SVG, which solves the problem that the text labeling of the place name in the background map is different from that in the background map during the zooming process of the geographic wiring diagram of the power system. The problem of inconsistency after the power component graphics drawn on the background image are superimposed

Method used

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  • A svg-based background map generation method for power system geographic wiring diagrams
  • A svg-based background map generation method for power system geographic wiring diagrams
  • A svg-based background map generation method for power system geographic wiring diagrams

Examples

Experimental program
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Embodiment 1

[0060] The place name text label data in the graph before separation is located under the svg root node of the original map data, so when merging, insert the text description content of the place name text label SVG data modified in step 3 into the svg of other graphic SVG data separated in step 1 In the root node, and form the combined new graphic data in SVG format, it can be used as the background map SVG data under the current zoom ratio.

[0061] For example: the original background map SVG graphic data before separation in step 1 is as follows:

[0062]

[0063] The place name label information is:

[0064]

[0065] Other graphical data such as geographical areas, terrains, roads, etc. other than the place name text labels are:

[0066]

[0067] The description and definition of the graphics in the SVG data in the original graphics are organized into two graphics data in SVG format. The content of the place name text label SVG data is:

[0068]

[0069] Th...

Embodiment 2

[0079] choose figure 2 The SVG background image of the geographic wiring diagram is an example to illustrate the steps in the process. In the following examples, the location of the stored data may not be actually stored in the actual hard disk, but placed in the temporary memory area. When reading, it can be read directly from the memory to improve efficiency. In this case, the results of each step are stored in the data for clearer and more convenient explanations, and for easier understanding and comparison.

[0080] Step 1: Attach the Figure II The place name text label in the SVG graphics is separated from other graphics to form an attached image 3 SVG graphics. Among them, the place name label layer separated from the SVG background map of the geographic wiring diagram is stored as "place name label layer.svg". Other graphic data separated from the geographic wiring diagram SVG background image is stored as "graphic data layer.svg" such as image 3 shown. Depen...

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Abstract

The invention relates to a power system geographical wiring diagram background map generation method based on SVG (Scalable Vector Graphics), comprising the following steps: separating place name text annotations and other graphic data in a background map to get two pieces of SVG data; reading the two pieces of SVG data into a memory; calculating out text transformation matrixes after scaling according to the current scaling ratio of the geographical wiring diagram of a power system, and modifying the text transformation matrix in the place name text annotation SVG data; overlapping and merging the place name text annotation data and the separated other graphic data in the background map after modification to form new geographical wiring diagram background map SVG data; and drawing a background map in the geographical wiring diagram system with use of the new background map SVG data according to the current size of the geographical wiring diagram. Through the technical scheme provided by the invention, the problem that the place name text annotations in the background map and electronic component graphics drawn on the background map are inconsistent after overlap in the scaling process of the geographical wiring diagram of the power system is solved.

Description

technical field [0001] The invention relates to a method for generating a map in the field of geographical wiring diagrams of electric power systems, in particular to a method for generating background maps of geographical wiring diagrams of electric power systems based on SVG. Background technique [0002] The power system is a general term consisting of power plants → transmission and distribution networks → customer electrical equipment. The power system can be divided into transmission network and distribution network from the network point of view. These networks are composed of power plants, transmission lines (wires, towers, etc.), substations, distribution lines (wires, towers, distribution transformers, line switches, box change, opening and closing station / community change, etc.) composition. [0003] The geographic wiring diagram of the power system mainly shows the geographical location of power plants and substations in the system, the path of power lines, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T3/40G09B29/00
CPCG06T3/4084G09B29/005
Inventor 白俊杰邹卫美罗春青郑志伟孙永锋佟德江刘欣潘有双曹晓尘裘微江宫春明李勤新陈勇康建东郭中华张亮秦长峰陈继林臧主峰刘娜娜刘琳何春江贾军茹
Owner CHINA ELECTRIC POWER RES INST
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