KR102111279B1 - a file format for expressing the flow based programming by using the svg graphic file format and the file format structure - Google Patents

Abstract

The present invention relates to a method and expression format for performing external processor monitoring and control in componentized flow-based programming, and uses W3C standards based information including SVG, XML, and JavaScript in a software development platform. It is a technology that can express flow-based programming.
To this end, in a file format structure for expressing flow-based programming using the W3C graphic file format SVG (Scalable Vector Graphics, SVG), input and output pin elements in the SVG symbol definition format and a connection line to the SVG graphic ( link) It provides a file format structure and a file format for expressing flow-based programming using the SBG graphic file format including elements.

Description

A file format for expressing the flow based programming by using the svg graphic file format and the file format structure}

The present invention relates to a method and expression format for performing external processor monitoring and control in componentized flow-based programming, and uses W3C standards-based information including SVG, XML, and JavaScript in a software development platform. It is a technology that can express flow-based programming.

In computer programming, flow-based programming (FBP) is a programming paradigm that defines an application as a network of "black box" processes, exchanging data between predefined connections through message passing. Is also specified outside the process.

These black box processes can be reconnected without changing internally to form a variety of applications. Flow-based programming is naturally component-oriented.

This type of flow-based programming is a specific type of data flow programming based on defined information packets, named ports, and separate connection definitions. It also defines a connection list through software called "scheduler".

In addition, a connection is linked to a process through a name agreed between the process code and the symbol definition, and more than one process may execute the same code.

For example, at some point in time, a given information packet may be owned only by a single process or may be in motion between two processes, and the information packet may be simple information or an array type.

More specifically, the definition of a flow-based program is generally a diagram and can be viewed as a visual programming language, which translates into a linked list in some low-level language or notation.

In addition, these flow-based programs have language-independent features, and in fact, using a scheduler written in a sufficiently low-level language, components written in different languages can be connected together in a single network. Due to these characteristics, flow-based programs are suitable for the domain specific language or "mini language" concept.

SVG (Scalable Vector Graphics), one of the expressions for the flow-based programming language, is an XML-based file format for displaying two-dimensional vector graphics. The SVG format imager and its operation are defined as XML text files and searched. , Cataloging, scripting is possible, and compression is also possible if necessary.

SVG is an open standard vector graphic file format developed under the leadership of the World Wide Web Consortium (W3C) in 1999. It is currently supported by Microsoft's Internet Explorer version 9 or higher and most web browsers such as Chrome and Safari. The SVG file format defined by W3C (World Wide Web Consortium) performs definition for graphic information, but the conventional technology provides a problem that it is impossible to provide model graphics necessary for flow-based programming using defined standard graphic information.

Republic of Korea Patent No. 10-1728786 (Component based dynamic image display system and method using SB file format, registered on April 18, 2017)

In order to overcome this problem, the present invention can more easily express and link flow-based programming using W3C standards-based information including various formats, such as SVG, XML, and JavaScript, on platforms used in software development. The purpose is to provide a file format and its structure.

In order to express the flow-based programming using the W3C graphic file format SVG (Scalable Vector Graphics, SVG) for achieving the object of the present invention, the input and output pin elements in the SVG symbol definition format and a connection line to the SVG graphic It provides a file format structure for expressing flow-based programming using the SBG graphic file format including (link) element.

In addition, in the definition of the pin element, pin element information is located under the symbol element, and a graphic element capable of area setting is located under the pin element, and the definition of the pin element is symbol A graphic element capable of setting a region is positioned below the element, and a pin element is positioned below the graphic tag.

Also, in the definition of the link element, the link element information is located under the SVG tag, the graphic element capable of setting the line is located under the link element, and the definition of the link element is SVG. Graphic element information capable of line setting is positioned below the element, and link element information is positioned below the graphic element.

Here, the pin element includes input / output definition, variable type, and initial value information, and the link element includes the ID of the input use object and the ID of the output use object, and the name of the input terminal pin It will contain the pin's name information.

At this time, in the extended SVG file format-based flow file format structure, the SBG graphic file format using characteristics including symbol names, node IDs, input pin list information, and output pin list information excluding graphic resources is used. Therefore, a file format structure for expressing flow-based programming is provided.

The file format applied to the file format structure for expressing flow-based programming using the SBG graphic file format is

In the input information, your pin name, your pin type, your pin arrangement information, your pin's interface type, your pin's initial value, input pin's symbol name, input pin's symbol ID, input pin's name, input pin's Including the interface type, the pin information of the pin, the pin type of the pin, the array information of the pin, the interface type of the pin, the initial value of the pin, the symbol name of the output pin, the symbol ID of the output pin, the output pin By providing a file format characterized by including the interface type of the name, the output pin is to achieve the object of the present invention better.

The present invention provides a file format structure for expressing flow-based programming using a W3C graphic file format SVG (Scalable Vector Graphics, SVG), an input and output pin element in an SVG symbol definition format, and a connection line to an SVG graphic (link) Provides a file format structure for expressing flow-based programming using the SBG graphic file format including elements.

In addition, in the present invention, the definition of a pin element includes pin element information below a symbol element, a graphic element capable of setting a region below a pin element, and definition of a pin element. Provides a file format structure for expressing flow-based programming using the SBG graphic file format, which has a feature in which a configurable graphic element is located under the symbol element and a pin element is located under the graphic element. do.

In addition, according to the present invention, in the element of the link element, the link element information is located below the SVG element, the graphic element capable of setting the line is located under the link element, and the definition of the link element is provided. Is a file format for expressing flow-based programming using the SVG graphic file format, which has the feature that the line-configurable graphic element information is located below the SVG element and the link element information is located below the graphic element. Provide structure.

In addition, the present invention includes a pin element attribute input / output definition, variable type, and initial value information, and a link element includes an input use object ID, an output use object ID, and an input pin name. It provides a file format structure for expressing flow-based programming using a file SBG graphic file format having characteristics including name information of an output pin.

In addition, the present invention is a SV file format structure based on the extended SVG file format, which includes a symbol name excluding a graphic resource, an ID of a node, input pin list information, and output pin list information. To provide a file format structure for expressing flow-based programming.

In addition, the present invention is a file format applied to the file format structure for expressing flow-based programming using the above SBG graphic file format, its pin name in its input information, its own pin type, its own pin information, its own It provides a file format structure characterized by including the interface type of the pin, the initial value of the pin, the symbol name of the input pin, the symbol ID of the input pin, the name of the input pin, and the interface type of the input pin.

In addition, the present invention is a file format applied to the file format structure for expressing flow-based programming using the above SBG graphic file format, its pin name, its own pin type, its own pin array information, its own It provides a file format structure characterized by including the pin's interface type, the initial value of its pin, the symbol name of the output pin, the symbol ID of the output pin, the name of the output pin, and the interface type of the output pin.

By providing the file format and its structure of the present invention, flow-based programming can be more easily expressed and interlocked using W3C standards-based information including various formats, such as SVG, XML, and JavaScript, on platforms used in software development. It has the effect.

1 is a configuration diagram according to the present invention.
2 and 3 are examples of an extended format according to the present invention.
4 is a structural diagram of a pin element of the present invention.
5 is an exemplary display of a symbol including an extended pin element according to the present invention.
6 is an example of an extended format of a link object.
7 is a structural diagram of a link element.
8 is an example of a display using pin information of a use object and link information.
9 is an example of a flow file format for flow-based programming.

Hereinafter will be described in detail with reference to the drawings so that a person skilled in the art can easily implement the present invention.

The present invention defines pin element information in the SVG symbol definition. The symbol (sybmol) definition is applied through use tag information according to the SVG symbol characteristics defined in W3C. One of the use element attributes, “xlink: href”, serves as a link to the defined symbol.

The pin element extended in the present invention serves as a container that contains information of a component. This information is used to hold information of variables and arrays. In addition, it may be used to indicate external reference information. The pin element has a characteristic of being connected to a pin node of another object through a connecting line.

A file format structure for expressing flow-based programming using the SBG graphic file format of FIG. 1 with respect to the file format and its structure for expressing flow-based programming using the SBG graphic file format of the present invention In detail with reference to the structural diagram for illustration, the file format structure for expressing flow-based programming using the SBG graphic file format of the present invention includes a symbol definition unit 10, a graphic implementation unit 20, and an object. It is composed of an alignment unit (30).

The sympole definition unit 10 includes a pin element 100 and a graphic implementation unit 20 includes a connection line element 200.

In more detail, the symbol definition unit 10 includes pin element information corresponding to an input, output, or constant (see FIG. 2).

Pin element information corresponding to the input, output, or constant is referred to as a symbol pin definition.

This may include pin element information below the symbol tag or pin element information below the graphic element (see FIG. 3).

In this case, the graphic element may be further included in the symbol definition unit 10.

Here, in the extended form including graphic elements, the property information of the pin element is “name” corresponding to the variable name, “type” defining input / output, and “var-type” defining variable type information. ”,“ Default-value ”for defining initial values,“ auto ”for automatically changing and defining variable types, and“ auto-interface ”properties for automatic variables. The name of each attribute is an example, and each attribute is included in the added pin element information.

The above properties include 'pin name', 'pin description', 'pin information (input-input, output-output, constant-const)', 'variable type (int, bool, double, string)', 'initial value' There may be ',' auto type flag ', and' auto variable type '.

The sub-element of the added pin element 101 includes a graphic attribute for display, or a pin (sub-element) of the graphic element, such as another type of added pin element 102. pin) It has a characteristic that the element is further included.

The attribute of the graphic element may include a graphic element having an area such as an original object or a square object element, and the attribute of the SVG is inherited and applied to the attribute of the graphic resource.

Reference will be made to FIG. 5 to describe the extended pin element in more detail.

According to FIG. 5, the information 401 displayed through pin elements and graphic element information may be used as information that a connection line can connect through a corresponding graphic area when performing flow program editing.

At this time, it can be used as a design element for providing the display information of the symbol, such as each of the graphic objects (400, 402).

 Here, the design element means that visual expression is possible when providing display information.

In order to perform flow connection between symbols using a symbol in which a pin element is added as described above, a definition for a connection line is required. In order to express a connection line between use objects using an extended symbol, a connection line element is included. (See FIG. 6).

As shown in FIG. 6, the link element has a characteristic including an ID of an input use object, an ID of an output use object, and a name of an input terminal pin.

In addition, referring to FIG. 7 showing the structure of a link element according to the present invention, it has a feature of including a graphic element under the link element 201 of the graphic implementation 20. .

Here, the line graphic element 202, which is a graphic element that can utilize the connection line as described above, may apply polline, line, path, etc., which may be provided through a link (LINK).

In addition, as shown in FIG. 8, a display through a pin object of a use object and link information may be implemented, and additional nodes including link element information, symbol name, ID, and input information According to the connection information of (NODE), it is stored and provided in the order of reaching the last connection line based on the starting node.

This is to enable efficient application from an external processor.

Of course, as described above, it may be stored in individual nodes in addition to the sequentially stored method.

When a flow file is generated using a file format having such a file format structure, as shown in FIG. 9, the flow file information has a characteristic that only information of a node that does not include a graphic resource is included. The node information includes symbol name, node ID, input pin list information, and output pin list information.

The input information of the node ("input") has a feature of providing input (const) attributes in connection with symbol pin definition information of FIG. 2.

The node's output information ("output") has a feature of providing an output attribute in association with symbol pin definition information.

In addition, the extended SVG file format is defined for the input, output, and constant pins through the symbol pin definition described above, and includes node information for the input and constant pins.

The node information includes 'own pin name', 'own pin type (int, bool, float, double, string)', 'own pin initial value', 'storage type', 'own pin array information', and 'own pin' It includes' pin 'interface type', 'initial value of own pin', 'symbol name of input pin', 'symbol ID of input pin', 'name of input pin', and 'interface type of input pin'.

The pin and link elements of the SVG file format can be applied to the format of the flow file. The attributes included in the output information of the flow file format include 'own pin name' and 'own pin'. Type (int, bool, float, double, string) ',' Own pin initial value storage type (text, binary) ',' Own pin array information ',' Own pin interface type ',' Own pin initial value Includes', 'symbol name of output pin', 'symbol ID of output pin', 'name of output pin', and 'interface type of output pin', and pins and connection lines of the SVG file format defined extended ( link) It can be correlated with element information.

For example, when three input pins and two output pins are defined and applied to the symbol definition, the corresponding flow format is provided as three inputs and two output informations.

As described above, by providing a file format and its structure for expressing flow-based programming using the SBG graphic file format according to the present invention, the format information of pins and links defined during editor and renderer development By allowing the format information of and flow files to be organically linked, it is possible to more easily express and link flow-based programming using W3C standards-based information including various formats.

10: symbol definition unit 20: graphic implementation unit
30: object alignment unit 100: pin (pin) element
101, 102: added pin element 200: connection line element
201: link element 202: line graphic element
400,402: Graphic object 401: Presented information

Claims (4)

W3C graphic file format includes a file format structure for expressing flow-based programming using SVG (Scalable Vector Graphics).
The above-described file format structure is composed of a symbol definition unit 10, a graphic implementation unit 20, and an object alignment unit 30,
The pin definition element 10 includes the pin element 100, and the graphic implementation unit 20 includes the connection line element 200,
Expresses flow-based programming using the SVG graphic file format that includes input and output pin elements in SVG symbol definition format and link elements in SVG graphics.
The symbol (sybmol) definition is applied through use tag information according to the SVG symbol characteristics defined in W3C, and one of the use element attributes, “xlink: href”, serves as a link to the defined symbol,
In the definition of the pin element, pin element information is located below the symbol element, and a graphic element capable of setting a region is located below the pin element, and the definition of the pin element is below the symbol tag. The graphic element that can be set in the area is located, and the pin element is located below the graphic element.
The pin element information is included under the symbol tag, or the pin element information is included under the graphic element,
The sub-element of the added pin element 101 includes a graphic attribute for displaying a display, or a pin element in another form of the sub-element of the graphic element of the added pin element 102 Is further included,
The graphic element and the extended pin element are further included in the symbol definition unit 10,
The information 401 displayed through the extended pin element and graphic element information is used as information that the connection line can connect through the corresponding graphic area when performing flow program editing, and each graphic object 400 or 402 As such, it will be used as a design element to provide the display information of the symbol.
In the definition of the link element, the link element information is located under the SVG element, the graphic element capable of setting the line is located under the link element, and the definition of the link element is the SVG element. The graphic element information that can be set in the line is located, and the link element information is located below the graphic element.
As described above, the line graphic element 202, which is a graphic element that can utilize the connection line, is applied with a polline, line, or path and is provided through a link (LINK).
The above-described link element includes a file format structure characterized in that it comprises an ID of an input use object, an ID of an output use object, and a name of an input terminal pin. Computer system.
delete delete According to claim 1,
The pin element attribute includes input / output definition, variable type, and initial value information, and the link element contains the ID of the input use object and the ID of the output use object, the name of the input terminal pin, the output terminal pin Computer file system including a file format structure for expressing flow-based programming using a file SBG graphic file format having characteristics including name information of).

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