CN115146424B - SVG (static var generator) tag type description method of electric circuit diagram - Google Patents
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- 230000000694 effects Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000009429 electrical wiring Methods 0.000 description 3
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/18—Network design, e.g. design based on topological or interconnect aspects of utility systems, piping, heating ventilation air conditioning [HVAC] or cabling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/20—Drawing from basic elements, e.g. lines or circles
- G06T11/203—Drawing of straight lines or curves
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/40—Filling a planar surface by adding surface attributes, e.g. colour or texture
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/60—Editing figures and text; Combining figures or text
Abstract
The invention discloses an SVG label type description method of an electric circuit diagram, which comprises the following steps: (1) Defining an electrical circuit diagram according to a standard SVG graph by using SVG labels; (2) The electrical element uses SVG standard basic graph straight line, multi-section line polyline, polygon, rectangle rect, circular circle and path to design standard electrical element according to electrical element specification, and uses group label g to wrap; (3) electrical component design wiring; (4) electrical component control status display; (5) electrical component wiring; (6) After connecting wires among the electric element anchors, a connection topology mapping relation can be formed, and finally the connection topology relation data are stored in the electric element anchor wire group g in a JSON character string format. The description method of the invention takes the development direction of the power informatization construction and the energy Internet as guidance, takes the current electrical circuit diagram technical standard as a standard, combines the standard and standard graphic structure characteristics of SVG1.1 formulated by W3C, and realizes the description of the electrical circuit diagram by SVG labels.
Description
Technical Field
The invention relates to the technical field of power system drawing, in particular to an SVG label type description method of an electric circuit diagram.
Background
The electric circuit diagram is an engineering drawing which uses electric system graphic symbols and literal symbols to represent each element and the interrelation of the elements in the electric device according to the related electric technical standards issued by the country. The electrical connection diagrams can be classified into a primary wiring diagram and a secondary wiring diagram according to their roles in the power system. At present, desktop software is adopted for drawing an electric circuit diagram, autoCAD, autoCAD electric plates are commonly used, and some client software of the same type based on AutoCAD secondary research and development and client software independently researched and developed by three-party companies or webpage application by utilizing Cavans are commonly used.
SVG is a graphic file format that is interactive and dynamic, and animation elements may be embedded in the SVG file or defined by script. SVG provides 3 types of graphics objects: vector graphics (e.g., paths consisting of straight lines and curved lines), images, text. The graphic objects can also be grouped, added with styles, transformed, combined, etc., and the feature set comprises: nested transformations, clipping paths, masks, filter effects, template objects, and other extensions.
With the development of power informatization and energy internet, in an electric power and energy digital application system based on the internet, an electric wiring diagram of a factory station, a park, an electricity utilization unit and the like is often required to be checked at a webpage end, and real-time monitoring is carried out on some electric power state data. Therefore, the electrical wiring diagrams or drawing software independently developed by three-party companies which are drawn by adopting the client software at present have some defects and are expressed as follows:
(1) AutoCAD is not special drawing software for electrical circuit diagrams, and the drawing of the electrical circuit diagrams is drawn by connecting points, lines and surfaces. Because the concept of electrical elements is not arranged in the software, the user can draw the similar electrical element combination patterns which are stored as similar electrical element libraries in a block file mode, and the similar electrical element combination patterns are imported one by one when in use, and the sizes of the electrical elements drawn by the user do not have uniform standards.
(2) The drawing software special for electric is provided with a part of electric component library, can be selected according to the requirement when in use, and has a slight advantage compared with AutoCAD. However, all the electrical components in the software are defined by adopting an internal data format, and when encountering components which are not in the component library, the user cannot customize the expansion. The user can only draw the custom elements in a point, line and plane mode, the elements are just similar to the element library in appearance, and the operations of electric element attribute configuration, connection between anchor points, transformation and the like cannot be completed.
(3) The electrical components, such as transformers, have different voltage classes for each terminal, which are labeled with different colors in electrical technology standards, because there is no electrical component library or the electrical component library design does not satisfy the different color labels for the voltage classes. Many of these electrical components that require the use of color marking voltage levels are not available.
(4) Most of the client-side type drawing software is used for drawing printed circuit boards, although part of the software supports unidirectional export into SVG file format, the export graphics usually have problems of shift, deformation, scaling and the like caused by converting from own format into SVG graphics, and the problems are called compatibility problems. Since the client software file editing specifies the own file format, the exported SVG graphics are modified in plain text files and cannot be imported into the software again for secondary editing on this basis. Most software exports the SVG format as hard-converted, irreversible.
(5) Although some electric circuit diagrams drawn by Canvas-based webpage end drawing application can be derived from SVG graphics, the converted graphics have no electric circuit element structure, and real-time adjustment of real-time data display and some state control of the electric circuit diagrams in an informatization system cannot be realized.
Each of the above electrical wiring diagram drawing software comes from different manufacturers, and there is a large learning cost for personnel specializing in electrical wiring diagram drawing.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides an SVG label type description method of an electric circuit diagram, and aims to realize the description of the electric circuit diagram by using an SVG label by taking the power informatization construction and the energy Internet development direction as guidance and taking the current electric circuit diagram technical standard as a standard and combining with the SVG1.1 standard specification graphic structural characteristics formulated by W3C.
An SVG tagged description method of an electrical circuit diagram comprises the following steps:
(1) Defining an electrical circuit diagram by using SVG labels according to a standard SVG graph, internally defining label Style Style nodes, and connecting line topological relation data group labels g T Electric element group label g D Electric element anchor point connection line group label g C Setting corresponding unique id values for the three group labels respectively;
(2) The electrical component uses SVG standard basic graph straight line label line, multi-section line label polyline, polygon label polygon, rectangular label rect, circular label circle, path label path to design standard electrical component according to electrical component specification, and uses group label g d Wrapping;
(3) Connecting wires are designed between the electric components, and an anchor point group label g for connecting wires is added in the electronic components a Marking anchor point positions by using a circular label circle; anchor point group label g a Setting a group identifier anchor-points, and setting a data-index mark anchor index value by an anchor point circular label circle, wherein the counting starts from 0;
(4) Status display of electrical component control, adding status group labels inside electrical componentg s The state group tag g s Describing all sub-states by using the basic graph; each seed status group label g s Setting a data-switch mark state index value, and counting from 0; by providing the electric component group tag g d The attribute data-switch value is matched with the general state to control the CSS style to switch the current display state of the electronic element;
(5) The electric element wiring uses a multi-section line label polyline, and the wiring rule adopts horizontal and vertical wiring; starting from any anchor point position of the electric element, 13 wiring modes can be drawn according to the terminal point position of the connecting line; the wiring mode initiated by other position anchor points is analogized in turn, and 13 conditions exist for each side anchor point;
(6) After connecting wires among the electronic element anchor points, a connection topology mapping relation can be formed; using a standard JSON data format to record the mapping relation between the electric element and the connecting line and the mapping relation between the connecting line and the electric element respectively, taking the unique id value of the graph as an index, and recording the anchor point index value of the electric element respectively; the connection topological relation data is stored in the tag g of the electrical element connection topological relation data group in a JSON character string format T Is a kind of medium.
Preferably, in step (1), the general control state display CSS Style code of the electrical circuit diagram is written in the label Style, and the topological relation data group label g is connected T Topology data for placing electrical components in connection therewith, electrical component group label g D Electronic element is placed in the tag g of the anchor point connecting line group of the electronic element C And connecting wires between anchor points of the electrical components are placed in the circuit.
Preferably, in step (2), group label g wrapping the electric element d Setting an attribute id value as a unique index, setting a code attribute value as an element code, setting a title attribute value as an element name, and setting a width and height attribute value according to the element size in the specification.
The invention has the advantages and technical effects that:
(1) The electrical circuit diagram and the internal data are completely described by adopting standard SVG1.1 standard text labels, so that the electrical circuit diagram described by one label can support real-time data display, state control and the like, and the electrical circuit diagram topology analysis and the like can be expanded and realized.
(2) An electrical circuit diagram description method is designed, which comprises a general CSS style, various states and switching modes of switch knife switch elements, an electrical element composition structure, and connection lines and connection topological relations among the electrical elements. The layered design of the electric circuit diagram is realized, and the layered design comprises a general style layer, a topological relation data layer, an electric element layer and a connecting line layer.
(3) The method realizes the atomization definition of the text label mode of the electric element, wherein the element comprises element basic graphic information, a block display control structure, state switching control display and element anchor point position information, and one electric element is an integral atomization design.
(4) The network transmission characteristics are good, the electric circuit diagram and the electric elements are all stored in pure text files, the network transmission method is suitable for transmission in various network environments, and the file size can be further reduced by utilizing a certain compression technology.
(5) The visual display mode is widely available, and the visual display mode can be directly previewed by a browser and picture browsing software; the vector characteristic of the SV G graph is maintained, the lossless arbitrary scale amplification and reduction can be supported, and the method is suitable for screen display with various sizes.
(6) The method has good interactive characteristics, and realizes seamless explicit interaction between the electric circuit diagram and the service system data by controlling actions through CSS control patterns, animation effects and JavaScript script codes.
(7) The system has good expansibility, the topological relation data of anchor points between the electric elements are recorded in the electric circuit diagram, and the data are recorded in a JSON format, so that the system topology analysis, the tide calculation and other functional expansion can be further carried out.
The invention has practicability, can define electric elements and arrange and form element libraries, and can write power pattern editing software, topology analysis software and tide calculation software applicable to SVG patterns.
Drawings
FIG. 1 is a diagram of a complete electrical circuit of the present invention depicted in the form of a SVG text label;
FIG. 2 is a diagram of an electrical component implementation of the present invention;
FIG. 3 is a regular diagram of wiring of electrical components according to the present invention;
fig. 4 is a diagram of electrical component anchor point connection topology relationship data according to the present invention.
Detailed Description
For a further understanding of the nature, features, and efficacy of the present invention, the following examples are set forth to illustrate, but are not limited to, the invention. The present embodiments are to be considered as illustrative and not restrictive, and the scope of the invention is not to be limited thereto.
An SVG tagged description method of an electrical circuit diagram comprises the following steps:
(1) Defining an electrical circuit diagram by using SVG labels according to a standard SVG graph, internally defining label Style Style nodes, and connecting line topological relation data group labels g T Electric element group label g D Electric element anchor point connection line group label g C Setting corresponding unique id values for the three group labels respectively;
(2) The electrical component uses SVG standard basic graph straight line label line, multi-section line label polyline, polygon label polygon, rectangular label rect, circular label circle, path label path to design standard electrical component according to electrical component specification, and uses group label g d Wrapping;
(3) Connecting wires are designed between the electric components, and an anchor point group label g for connecting wires is added in the electronic components a Marking anchor point positions by using a circular label circle; anchor point group label g a Setting a group identifier anchor-points, and setting a data-index mark anchor index value by an anchor point circular label circle, wherein the counting starts from 0;
(4) Status display of electrical component control, adding status group tag g inside electrical component s The state group tag g s Describing all sub-states by using the basic graph; each seed status group label g s Setting a data-switch mark state index value, and counting from 0; by providing the electric component group tag g d Attribute data-switch value and universal state control CThe SS mode switches the current display state of the electronic element;
(5) The electric element wiring uses a multi-section line label polyline, and the wiring rule adopts horizontal and vertical wiring; starting from any anchor point position of the electric element, 13 wiring modes can be drawn according to the terminal point position of the connecting line; the wiring mode initiated by other position anchor points is analogized in turn, and 13 conditions exist for each side anchor point;
(6) After connecting wires among the electronic element anchor points, a connection topology mapping relation can be formed; using a standard JSON data format to record the mapping relation between the electric element and the connecting line and the mapping relation between the connecting line and the electric element respectively, taking the unique id value of the graph as an index, and recording the anchor point index value of the electric element respectively; the connection topological relation data is stored in the tag g of the electrical element connection topological relation data group in a JSON character string format T Is a kind of medium.
Preferably, in step (1), the general control state display CSS Style code of the electrical circuit diagram is written in the label Style, and the topological relation data group label g is connected T Topology data for placing electrical components in connection therewith, electrical component group label g D Electronic element is placed in the tag g of the anchor point connecting line group of the electronic element C And connecting wires between anchor points of the electrical components are placed in the circuit.
Preferably, in step (2), group label g wrapping the electric element d Setting an attribute id value as a unique index, setting a code attribute value as an element code, setting a title attribute value as an element name, and setting a width and height attribute value according to the element size in the specification.
In order to more clearly illustrate the specific embodiments of the present invention, several examples are provided below:
the invention relates to an SVG label type description method of an electric circuit diagram, wherein one electric circuit diagram is an SV G file, and four parts are sequentially included according to the file structure in a description mode of an XML standard structure suitable for SVG: and the electrical element graph state is in a general CSS style, the connection topological relation data set among the electrical element anchors, the electrical element set, the electrical element anchor connection set and the connection wiring among the electrical element anchors adopt a horizontal-vertical rule.
The electric element group is wrapped by using a group label g, an attribute id value is set to be material-group, and each electric element in the electric element group is an independent module and comprises a graphic structure, anchor point information, basic data and all states displayed by a controlled switch knife switch element.
Electric component use group label g 0 Package, g 0 Setting an attribute id value as a unique index, setting a code attribute value as an element code, setting a title attribute value as an element name, and setting a width and height attribute value according to the element size in the specification, wherein other attributes are required to be expanded as required. Such as a switch-like electrical element extending a data-switch attribute, the attribute value starts an integer from 0.
If the interior of the electric element graph needs to be distinguished and controlled and displayed by a module, for example, if each winding of the three-winding transformer is connected with different voltage values and needs to display different colors, each part of the independent control and display is reused with a group tag g n Package, g n Attribute stroke configures line color, attribute fill configures fill color, g n And a plurality of SVG basic patterns such as straight lines, multi-segment lines p olylines, polygonal polygons and the like are arranged in the SVG basic patterns, and the basic patterns are arranged and displayed according to standard sizes of electric elements and pattern drawing rules. If the electrical components are individual and are not required to be displayed separately, the label g is arranged on the outermost layer 0 And configuring the stroke and fill attributes, and directly configuring basic graphics inside.
Electric component use group label g with similar switch state switching display s Wrapping various switch states, i.e. the effect of the element in different situations, each state being marked with a label g s And (5) wrapping. G is the same as s The tag configures a data-switch attribute, the value of which is an integer starting from 0, each number representing a state. According to the outermost layer g 0 The tag data-switch attribute value and the CSS control switch display one of the states.
The general CSS style of the electric element is defined at the head of the graphic file, is consistent with the common CSS style writing mode, and is wrapped by using a style label. Attribute selector g d in CSS style selector is writtenata-switch＝n]Setting a visibility value of g in a knife switch element of a hid control switch s And displaying and hiding how many kinds of switch states of the electrical element need to write how many kinds of C SS patterns, and realizing mutual exclusion display of one kind each time.
The electric element with the connecting terminal needs to be configured with an anchor point position mark, and the anchor point is used for capturing a focus and recording the topological relation of the electric element when the electric element is connected. Anchor point uses group label g a And (3) label wrapping, setting an attribute anchor-points identifier, and internally setting positions of cx and cy attribute marking anchor points in the electric graphic primitives by using a circle graph. The attribute data-index identifies an anchor index value, which is an integer starting from 0, and is used to record the topology relationship, how many anchors configure how many circles e.
Connection between electric element anchor points is marked g c And wrapping, setting an attribute id value as a connection-line-group, and setting the attribute id of the multi-section line as a unique value, wherein the connection between the electric element anchors and the electric element groups is realized by using the multi-section line in the SVG. The connecting lines are all in a horizontal, horizontal and vertical rule.
The relationship among the electrical elements, the anchor points and the connecting lines is the topological relationship. The topological relation data is described in a JSON format, the minimum complexity of time for searching the electric element is considered in data minimum storage and later calculation, and the electric element and electric element connecting line adopt a bidirectional mapping relation. The data includes two sets of mataltoreline and linetotoreal that store the electrical components that are connected by wires that are present on the electrical components, respectively. Topological relation data group is marked with group g d Wrapping, setting attribute id value as morphology-JSON-data, serializing relation data JSON into text, and storing the text into the group of labels g d 。
The invention adopts mature products and mature technical means in the prior art.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (3)
1. An SVG-tagged description method of an electrical circuit diagram, comprising the steps of:
(1) Defining an electrical circuit diagram by using SVG labels according to a standard SVG graph, internally defining label Style Style nodes, and connecting line topological relation data group labels g T Electric element group label g D Electric element anchor point connection line group label g C Setting corresponding unique id values for the three group labels respectively;
(2) The electrical component uses SVG standard basic graph straight line label line, multi-section line label polyline, polygon label polygon, rectangular label rect, circular label circle, path label path to design standard electrical component according to electrical component specification, and uses group label g d Wrapping;
(3) Connecting wires are designed between the electric components, and an anchor point group label g for connecting wires is added in the electronic components a Marking anchor point positions by using a circular label circle; anchor point group label g a Setting a group identifier anchor-points, and setting a data-index mark anchor index value by an anchor point circular label circle, wherein the counting starts from 0;
(4) Status display of electrical component control, adding status group tag g inside electrical component s The state group tag g s Describing all sub-states by using the basic graph; each seed status group label g s Setting a data-switch mark state index value, and counting from 0; by providing the electric component group tag g d The attribute data-switch value is matched with the general state to control the CSS style to switch the current display state of the electronic element;
(5) The electric element wiring uses a multi-section line label polyline, and the wiring rule adopts horizontal and vertical wiring; starting from any anchor point position of the electric element, 13 wiring modes can be drawn according to the terminal point position of the connecting line; the wiring mode initiated by other position anchor points is analogized in turn, and 13 conditions exist for each side anchor point;
(6) After connecting wires among the electronic element anchor points, a connection topology mapping relation can be formed; using standard JSON data format to record mapping relation between electric element and connection line and mapping between connection line and electric elementThe relation, regard only id value of the figure as index, and record the anchor point index value of the electric element separately; the connection topological relation data is stored in the tag g of the electrical element connection topological relation data group in a JSON character string format T Is a kind of medium.
2. The SVG tagged description method of electrical circuit diagrams of claim 1, wherein: in the step (1), a general control state display CSS Style code of an electric circuit diagram is written in a label Style, and a topological relation data group label g is connected T Topology data for placing electrical components in connection therewith, electrical component group label g D Electronic element is placed in the tag g of the anchor point connecting line group of the electronic element C And connecting wires between anchor points of the electrical components are placed in the circuit.
3. The SVG tagged description method of electrical circuit diagrams of claim 1, wherein: in the step (2), the group label g wrapping the electric element d Setting an attribute id value as a unique index, setting a code attribute value as an element code, setting a title attribute value as an element name, and setting a width and height attribute value according to the element size in the specification.
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