KR101647371B1 - STL file including text information and, STL file searching and management system therefor - Google Patents

STL file including text information and, STL file searching and management system therefor Download PDF

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Publication number
KR101647371B1
KR101647371B1 KR1020150049386A KR20150049386A KR101647371B1 KR 101647371 B1 KR101647371 B1 KR 101647371B1 KR 1020150049386 A KR1020150049386 A KR 1020150049386A KR 20150049386 A KR20150049386 A KR 20150049386A KR 101647371 B1 KR101647371 B1 KR 101647371B1
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South Korea
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file
nstl
text information
search
unit
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KR1020150049386A
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Korean (ko)
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박승철
김경준
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(주)선도솔루션
김경준
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Priority to PCT/KR2015/003509 priority patent/WO2016163568A1/en
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    • G06F17/50—
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/40—Data acquisition and logging
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F17/30091—
    • G06F17/30106—
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
    • G06T17/10—Constructive solid geometry [CSG] using solid primitives, e.g. cylinders, cubes

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  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Data Mining & Analysis (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
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Abstract

The present invention can additionally store text information as related information of 3D modeling data in 3D modeling data of a conventional STL file to increase the information transfer power of 3D modeling data and dramatically increase service utilization of STL files, Information can be additionally stored, thereby greatly improving the user's usability and file operation efficiency. Also, the 3D modeling data, the text information, and the thumbnail information can be operated as one file and the text information can be utilized separately. The retrieval and management server extracts the NSTL file transmitted from the client as 3D modeling data, thumbnail image and text information, divides the NSTL file into predetermined fields, and stores the NSTL file in the database unit, thereby improving search efficiency and reliability Contains text information that can be significantly increased STL files and relates to an STL file search and management system using the same.

Description

STL file including text information and STL file search and management system using the same STL file including text information,

The present invention relates to an STL file including text information and an STL file search and management system using the STL file. More specifically, the present invention relates to a STL (STereoLithography) file, which is a standard file format of 3D data, To an STL file including text information capable of remarkably enhancing the efficiency of searching, managing and operating STL files by additionally storing information and operating them as one file, and an STL file searching and managing system using the STL file.

The STL (STereoLithography) file is an international standard format for storing 3D modeled three-dimensional data. It is the most standardized file format in 3D printers at present. It replaces surfaces and surfaces of objects with myriad triangles, And a set of patches defined for the vector to represent a solid.

Especially, as interest in 3D printer has increased rapidly and 3D printing market has been highlighted, a variety of 3D printer devices, related products and services have been released. From the specialist field to the industrial field, And was designated as a core policy industry under the leadership of the government.

As the 3D printer market grows, interest in STL files (files for 3D printer output) is increasing rapidly. Such STL files will gradually become STL file services with various types of services and platforms, Is expected.

Accordingly, various researches are being conducted to improve errors of the STL file format such as 'overlapping' and 'hall' and to improve the quality of the fritting, but there is almost no research for managing and utilizing STL file contents.

1 is a block diagram showing a conventional STL file.

In the conventional STL file 900, only the 3D modeling data 901 is stored according to a predetermined format as shown in FIG.

At this time, the storage method of the STL file 900 is stored in a binary or ASKII manner, and a binary method is widely used because of its low storage capacity.

In the conventional STL file 900 configured as above, only the binary model 3D modeling data 901 is stored. Therefore, when the STL file 900 is used for a search service, search is performed using only a file name, .

In addition, since the conventional STL file 900 is a method for accurately grasping the contents of a file by the user, it is possible to obtain a result of analogy through a file name or directly open a file through a viewer program to directly view the file, It has structural limitations.

Given the demand and usage of the STL file content that grow exponentially, the extent and range of utilization of the secondary service using STL files and STL files will increase significantly depending on how efficiently the STL files are managed and utilized Conventionally, the conventional STL file is capable of transferring information only through the time information, and has structural limitations in that the manager can transmit and manage information only through the title (text) inputted at the time of file creation.

In addition, the conventional STL file is stored by simply inputting only the file name (title) in the 3D modeling file, so that the search can not be efficiently performed because the keyword used for the search can be made only through the short file name.

Korean Patent Application No. 10-2006-0022371 (entitled Digital Watermarking Method of STL which is a 3-Dimensional Geometrical Shape) discloses a technique in which a watermark is inserted into an STL file and watermark embedding and extraction However, the digital watermark method of the STL may include a method and configuration for increasing the information transfer power of the STL file, a method and configuration for increasing the search efficiency of the STL file, There is a limitation in not solving the problem of the conventional STL file because the method and structure for efficiently managing are not described.

That is, 1) information transmission can be solely made through time information only, and the problem of the conventional STL file having a low information transfer capability can be improved; and 2) the conventional problem that search efficiency is poor due to merely a file name is solved. ) STL file that can be efficiently managed and can increase the utilization of secondary service is urgently needed.

In order to solve the above problems, the present invention has been made to solve the above-mentioned problems by providing text information, which is related information on 3D modeling data, to 3D modeling data of a conventional STL (STereoLithography) An STL file including text information capable of dramatically increasing utilization and an STL file search and management system using the same.

Another object of the present invention is to provide an STL file including thumbnail information added to 3D modeling data of a conventional STL file and storing text information capable of improving usability and file operation efficiency, And a management system.

Further, another object of the present invention is to extract and utilize text information and thumbnail information separately by operating 3D modeling data, text information and thumbnail information as one file, thereby maximizing utilization of services utilizing STL files And an STL file search and management system using the STL file.

In another aspect of the present invention, a search and management server extracts NSTL files received from a client as 3D modeling data, text information, and thumbnail image information, And an STL file search and management system using the STL file.

In addition, another object of the present invention is to maximize the information transfer power of a file by displaying text information of an NSTL file retrieved through a graphical user interface (GUI) when a search and management server provides a search result to a client requesting a search service The present invention provides an STL file including text information for allowing a user to easily recognize information of a corresponding file without opening a file through a separate 3D viewer program, and an STL file searching and managing system using the STL file.

In order to solve the above problems, the present invention provides an NSTL file including 3D modeling data of an inputted STL (STereoLithography) file and text information which is related information related to the 3D modeling data as a search result according to a search request A system for searching and managing an NSTL file, the system comprising: an NSTL file creation device for creating and editing the NSTL file and transmitting the created and edited NSTL file to the outside; And a search and management server for storing the 3D modeling data and the text information of the NSTL file received from the NSTL file generating apparatus and searching the text information to provide a search result according to a user's search request, A retrieving unit for retrieving the 3D modeling data and the text information by analyzing the NSTL file; a database unit for storing the 3D modeling data and the text information extracted by the reading unit; A searching unit searching the database unit to search for NSTL files corresponding to the search keyword when a search request containing a search keyword is received from a user, and an exhibition field for displaying lists of NSTL files detected by the searching unit And a first interface processing unit for providing a user interface to the user And, the NSTL file recovery apparatus of the second processor interface which provides a user interface (UI, user interface) is provided with an input function for receiving the text information from the user; A 3D image viewer unit for analyzing and converting 3D modeling data of the input STL file to display a 3D image; A thumbnail image generation unit for capturing a 3D image displayed by the 3D image viewer unit and generating a thumbnail image; And a compression unit for compressing the 3D modeling data, the text information, and the thumbnail image to generate a file when the text information is received from the user through the second interface processing unit, When the thumbnail image of the NSTL file received from the generating device is extracted, the first interface processor stores the thumbnail image extracted in the database unit, and the first interface processor displays the thumbnail image corresponding to the thumbnail image corresponding to each of the lists .

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In the present invention, the database unit of the search and management server preferably includes a 3D modeling field for storing the 3D modeling data, a text information field for storing the text information, and a thumbnail image field for storing the thumbnail image Do.

In addition, in the present invention, the first interface processor of the search and management server provides the user with a detailed view interface in which thumbnail images and text information of the NSTL file clicked when the user clicks one of the search result lists .

According to the present invention having the solution and the solution, text information, which is related information about 3D modeling data, is additionally stored in the 3D modeling data of the conventional STL file to increase the information transfer power of the STL file, Can be dramatically increased.

Further, according to the present invention, it is possible to greatly contribute to the protection and management of intellectual property rights of various 3D contents generated by individual and collective organizations, etc., .

In addition, according to the present invention, thumbnail image information is additionally stored in 3D modeling data of a conventional STL file, so that convenience of use such as file management and file preview, and file operation efficiency can be drastically improved.

According to the present invention, the 3D modeling data, the text information, and the thumbnail image information are operated as a single file so that the retrieval data of the text information can be utilized separately, thereby improving the data management and application and utilization of various services for the STL file .

According to the present invention, the search and management server extracts the NSTL file transmitted from the client as 3D modeling data, text information, and thumbnail image information, divides the NSTL file into predetermined fields, and stores the NSTL file in the database unit, thereby significantly improving search efficiency and reliability have.

1 is a block diagram showing a conventional STL file.
2 is a block diagram showing an NSTL file which is an STL file including text information and thumbnail image information produced by the present invention.
3 is a block diagram showing an NSTL file editing program for creating or editing the NSTL file of FIG.
FIG. 4 is a flowchart for explaining the operation procedure of FIG. 3. FIG.
5 is a block diagram showing a viewer program of the present invention.
FIG. 6 is an exemplary view showing a detailed view interface provided in the text information display unit of FIG. 5. FIG.
7 is a flowchart showing a method of browsing the NSTL file of FIG.
FIG. 8 is a configuration diagram showing a search and management system using the NSTL file of the present invention.
Fig. 9 is a relationship diagram of Fig. 8. Fig.
10 is a block diagram showing the search and management server of FIG.
11 is a block diagram showing the database unit of Fig.
12 is a block diagram showing the searching unit of Fig.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

- STL file (hereinafter referred to as NSTL file) containing text information and thumbnail image information

2 is a block diagram showing an NSTL file which is an STL file including 3D modeling data, text information and thumbnail image information produced by the present invention.

The NSTL file 200 shown in FIG. 2 is a new STL file that is stored by compressing text information and a thumbnail image into a single file in 3D modeling data of a known STL (STereoLithography) file.

The NSTL file 200 also includes 3D modeling data 201 of a known STL file, text information 203, which is information related to 3D modeling data, and a thumbnail image 205 generated by capturing a 3D image .

The 3D modeling data 201 is 3D modeling data of a known STL file and 3D modeling data 901 of an STL file 900 generated in a binary or ASCII manner is stored as is well known.

The text information 203 is related information on the 3D modeling data input by the maker, the user, or the system.

In addition, the text information 203 includes production-related information such as the maker and production date, file information such as a detailed description of the 3D modeling data, additional description, and other information.

Thumbnail image information 205 is generated by capturing a 3D image of the inputted STL file, and the 3D image capturing method will be described in detail later with reference to FIG.

The 3D modeling data related to the 3D modeling data stored in the NSTL file 200 of the present invention has a difference in configuration from the existing metadata, and the object and effect Is a new type of STL file.

Metadata is a technology developed with the goal of managing and identifying files. Metadata is actually a separate file, though it appears as one file with the associated file. In addition, since the input information is uniform or limited, the utilization of metadata is very limited and it is not easy to perform various complex search and systematic management. On the other hand, the NSTL file can be managed as a single file by storing text information related to the 3D modeling data in the 3D modeling data.

In addition, metadata is lacking due to the complexity of data and the diversity of services at the present time when data needs become vast due to the development and introduction of new IT technologies. However, in the NSTL file of the present invention, 3D modeling data to be stored There is no limit to the amount and type of information to be input, and text information related to all 3D modeling data stored in the NSTL file is operated as a search database (DB) to be active in various complex services It is very efficient because it is easy to search and systematically manage.

3 is a block diagram showing an NSTL file editing program for creating or editing the NSTL file of FIG.

The NSTL file editing program 100 of FIG. 3 includes an interface processing unit 101 for managing a graphical user interface (GUI) and providing a suitable graphical user interface to a user according to a user's request and operation process, A 3D modeling data input unit 103 for inputting 3D modeling data generated through a 3D program generated through a known 3D program, and a 3D modeling data input unit 103 for inputting 3D modeling data of a conventional STL format input through the 3D modeling data input unit 103 A data conversion unit 105 for analyzing and converting the data into a 3D image using a predetermined analysis and conversion algorithm, and a viewer function in a known 3D viewer program to display data converted by the data conversion unit 105 A 3D image viewer unit 107 for capturing a 3D image displayed by the 3D image viewer unit 107 in a specific direction according to a user's selection; A text information generating unit 109 for generating the text information 203 of FIG. 2, which has been described above by inputting related information about the 3D modeling data from the user, And a compression unit 110 for compressing the text information generated by the information generation unit 109, the input 3D modeling data, and the thumbnail image generated by the thumbnail image generation unit 108 to generate the NSTL file 200 .

The interface processing unit 101 manages and processes the created graphic user interfaces, and displays a suitable graphical user interface on the user's screen according to the user's request and operation processing. At this time, the graphical user interfaces include a GUI for inputting 3D modeling data, a GUI provided when the 3D image viewer unit 107 is driven and displaying 3D images, and a GUI for displaying a 3D image when the thumbnail image generating unit 108 is operated. And a GUI provided when the text information generating unit 109 is operated and having an input function for receiving text information from the user. The configuration of the graphic user interface is limited to this And may further include various known objects and functions.

FIG. 4 is a flowchart for explaining the operation procedure of FIG. 3. FIG.

The NSTL file generation method (S200) of FIG. 4 includes a 3D modeling data input step (S210) for inputting 3D modeling data generated in the STL file format by a known 3D program and a 3D modeling data input step (S210) A data analysis and conversion step S220 for converting the 3D modeling data into a 3D image using a predetermined analysis and conversion algorithm, a 3D image display according to the data converted by the data analysis and conversion step S220, A 3D image displaying step S230 of displaying a 3D image according to the selected viewing direction at the same time, a thumbnail image creating step S240 of capturing a 3D image displayed by the 3D image displaying step S230 and generating thumbnail image information And a text information generating step (S250) of receiving relevant information related to the 3D image from the user and generating text information.

As described above, the NSTL file 200 of the present invention includes the 3D modeling data 201 of the known STL format, text information 203 used for the search and management service, and thumbnail image information 205 used for the operation and management service ), It is possible to solve the problem that the conventional STL file is inefficient in searching, managing, and operating.

- Viewer program

The viewer program 400 reads the NSTL file 200 shown in FIG. 2, and more specifically, displays 3D images, thumbnail image information 205 and 3D images according to 3D modeling data of the NSTL file 200 according to a predetermined graphic procedure. And displaying the text information 203. [

5 is a block diagram showing a viewer program of the present invention.

The viewer program 400 of FIG. 5 analyzes the inputted NSTL file 200 and extracts the 3D modeling data 201, the text information 203 and the thumbnail image information 205 of the NSTL file 200, A 3D image display unit 403 for analyzing and converting the STL format 3D modeling data 201 analyzed and extracted by the data analysis unit 401 using a predetermined analysis and conversion algorithm and displaying the 3D modeling data 201 as a 3D image, And a text information display unit 405 for displaying the text information 203 extracted by the data analysis unit 401 through the graphic user interface.

The 3D image display unit 403 has a viewer function provided in a known 3D viewer program. Since the viewer function is widely used in a viewer program, a detailed description thereof will be omitted.

Further, the detailed view interface, which is a graphical user interface provided in the text information display unit 405, displays production-related information included in the text information 203, file information such as a detailed description of the 3D image, additional information, And an exhibition space to be displayed.

FIG. 6 is an exemplary view showing a detailed view interface provided in the text information display unit of FIG. 5. FIG.

The graphical user interface 410 shown in FIG. 6 is a graphical user interface displayed on the screen of the user when the text information display unit 405 is driven. The graphical user interface 410 includes a first display field 411 for displaying production- A second exhibition field 413 in which file information such as related information and keywords related to the 3D image is displayed, a third exhibition field 415 in which other information is displayed, and an image exhibition field in which the thumbnail image 205 is displayed (417).

6, the first, second, and third exhibition fields 411, 413, and 415 and the image display field 417 The detailed view interface 410 is not limited to this, and various known functions and configurations may be applied.

7 is a flowchart showing a method of browsing the NSTL file of FIG.

The NSTL file browsing method (S300) of FIG. 7 includes an input step (S310) of receiving the NSTL file (200) generated by the above-described NSTL file editing program 100 of FIG. 3 and an input step A data extracting step S320 of analyzing the NSTL file 200 and extracting 3D modeling data 201, text information 203 and thumbnail image 205 of the NSTL file 200; The 3D modeling data 201 extracted by the data extracting step S320 is driven when the user requests the image viewing from the user through the selection step S330, The image display step S340 of converting the 3D image into the 3D image using the transformation algorithm and the text information extracted by the data extraction step S320 when the image is requested to be viewed from the user by the selection step S330 203 which exhibits It comprises a root information display step (S350).

- Search and management system using NSTL file

FIG. 8 is a configuration diagram showing a search and management system using the NSTL file of the present invention, and FIG. 9 is a diagram of the relationship shown in FIG. 8. FIG.

The retrieval and management system 1 of FIG. 8 includes a producer client 3-1 in which the NSTL file editing program 100 of FIG. 3 described above for creating and editing the NSTL file 200 is installed, an NSTL file 200 ..., and (3-N) in which the viewer program 400 of FIG. 5 has been installed for browsing the NSTL file 3-1, the viewer client 3-2, ..., A search and management server 5 for receiving and managing the client 200 and providing search services to the connected clients 3-1, ..., and 3-N, ), (3-N), (5), and a communication network 9 for providing a data movement path and a connection path.

For convenience of explanation, in the present invention, a client having the NSTL file editing program 400 installed is referred to as a producer client 3-1, a client having a viewer program 100 installed as a viewer client 3-2, (3-N). However, the NSTL file editing program 400 and the viewer program 100 may be variously configured according to the user's selection.

The clients 3-1 to 3-N are connected to the communication network 9 by a desktop-desk, a notebook, a smart- A smart-phone, a PDA (Personal Digital Assistant), a tablet PC, and the like.

The NSTL file editing program 400 or the viewer program 100 may be installed in the clients 3-1, ..., and 3-N, or both programs may be installed. In the present invention, A client in which the NSTL file editing program 400 is installed is referred to as a manufacturer client and a client in which the viewer program 100 is installed is referred to as a viewer client.

Also, the clients 3-1, ..., and 3-N can access the search server 5 through the communication network 9 to receive a search service.

The producer client 3-1 transmits the NSTL file 200 produced through the NSTL file editing program 400 to the search and management server 5 and the search and management server 5 transmits the NSTL file 200 produced by the producer client 3-1 And stores the NSTL file 200 transmitted from the NSTL file.

The communication network 9 supports data communication between the clients 3-1, ..., and 3-N and the server 5, and more specifically, a wide area network (WAN), a mobile communication network, A variety of configurations capable of transmitting and receiving data can be applied.

The search and management server 5 separates and stores the NSTL files 200 received from the producer client 3-1 for each field.

Also, the search and management server 5 provides a web screen or a user interface for receiving search keywords to the connected clients 3-1, ..., and 3-N.

When the retrieval and management server 5 receives the retrieval keyword from the connected clients 3-1, ..., and 3-N through the web screen or the user interface, the retrieval and management server 5 extracts text information data Extracts the extracted text information, and detects text information corresponding to the retrieval keyword and NSTL files 200 corresponding to the retrieved text information.

When the search and management server 5 detects the NSTL files 200 corresponding to the search keyword, the search and management server 5 provides the client requesting the search to the user interface on which the search results of the detected NSTL files 200 are displayed. At this time, the user interface may be configured to sort the list of detected NSTL files 200 or to sort the thumbnail image of the retrieved NSTL file 200 in an album form.

The NSTL file 200 includes the 3D modeling data 201, the text information 203, and the thumbnail image information 205. The NSTL file 200 is then retrieved through the text information 203 of the NSTL file 200 And the management efficiency can be improved remarkably. In addition, the user can recognize the contents of the file through the thumbnail image without browsing the files through the thumbnail image information 205 of the NSTL file 200.

10 is a block diagram showing the search and management server of FIG.

The search and management server 5 of FIG. 10 includes a database unit 52 for storing data classified into predetermined fields, a communication interface unit 53 for transmitting / receiving data to / from the outside, , An interface processing unit 54 that manages graphic user interfaces (GUIs) and provides an appropriate user interface to the user in accordance with user's request and operation processing, and an interface processing unit 54 that manages NSTL A reading unit 55 for analyzing the file 200 and extracting the 3D modeling data 201, the text information 203 and the thumbnail image information 205; , A data storage unit 56 for storing the classified data in the database unit 52 and a client 3-1, ..., and 3-N, Database 53, 54, 55, 56, and (56) that search for the NSTL file 200 corresponding to the search keyword, And a control unit 51 for managing and controlling the control units 51 and 57.

The control unit 51 is an OS (Operating System) of the search and management server 5 and manages and controls the controlled objects 52, 53, 54, 55, 56 and 57 .

The control unit 51 periodically crawls the communication interface unit 53 and receives the NSTL file 200 from the manufacturer client 3-1 and transmits the received NSTL file 200 to the reading unit 55 And causes the reading unit 55 and the data storing unit 56 to store the file in the database unit 52. [

The control unit 51 also drives the interface processing unit 54 when the clients 3-1, ..., and 3-N are connected to the clients 3-1, ..., (Hereinafter referred to as a search user interface) provided with a field for inputting a search keyword on the screen is provided to the connected client 3 so that the client 3 inputs the search keyword through the search user interface and transmits the search keyword to the NSTL file 200).

In addition, the control unit 51 drives the retrieval unit 57 when receiving a retrieval request from the client 3 connected thereto.

11 is a block diagram showing the database unit of Fig.

11, the database unit 52 includes a 3D modeling field 521 for storing the 3D modeling data 201 parsed by the read unit 55 and the data storage unit 56, A thumbnail image field 523 for storing text information, and a text information field 525 for storing text information. The text information field 525 is divided into a production-related information field 531 for storing production-related information, A file information field 532 and other information fields 533 in which other information is stored.

As described above, the search and management server 5 of the present invention classifies and stores the NSTL file 200 received from the producer client 3 according to a preset field, thereby storing only an appropriate field when receiving an NSTL file search request including a search keyword Thereby reducing computation processing time and increasing reliability.

The interface processing unit 54 provides the created graphical user interface to the connected client 3 and provides an operation processing result according to the requested command through a suitable graphical user interface in accordance with the command and the operation processing requested from the client 3 Data.

Various functions and configurations may be applied to the graphical user interfaces applied to the interface processor 54 at this time. For example, the graphical user interface includes a user interface for receiving a selection of a service type from a user by providing a check box for selecting from the client whether to transmit the generated NSTL file 200 or using the search service, A user interface for receiving a request for a search service from a user, and a user interface for providing a search result to a user who is provided with a sorting line arranged by a search result searched by the search unit 57.

The reading section 55 is driven under the control of the control section 51 when it receives the NSTL file 200 generated from the manufacturer client 3-1 through the communication interface section 53. [

The reading unit 55 analyzes the received NSTL file 200 and extracts 3D modeling data 201, text information 203 and thumbnail image information 205 of the NSTL file 200.

The data storage unit 56 stores the 3D modeling data 201, the text information 203 and the thumbnail image information 205 extracted by the reading unit 55 for each field of the database unit 52, The 3D modeling data 201 is stored in the 3D modeling field 521 of the database unit 52 and the thumbnail image information 205 is stored in the thumbnail image field 523 of the database unit 52, And stores it in the text information field 525.

12 is a block diagram showing the searching unit of Fig.

When the search unit 57 receives a request for a search service including a 'search keyword' from the connected client 3, the search unit 57 is driven under the control of the control unit 51 and provides search results to the client 3 requesting the search service.

12, the search unit 57 searches the text information field 525 of the input database unit 52 and displays the text information field 525 on the input 'search keyword' A retrieval and reading module 571 for reading the corresponding text information 203 from the database 52 and an NSTL file 200 corresponding to the text information read by the retrieval and reading module 571 A file detection module 573 and a list generation module 575 for generating a list of the NSTL files 200 detected by the file detection module 573. [ At this time, the list information generated by the list generation module 575 is provided to the client 3 requesting the search service through the graphical user interface by the interface processing unit 54, and the graphical user interface includes a method of sorting the list information, Images can be displayed in various display methods such as a method of using albums and sorting.

1: Search and Management System 3-1: Creator Client
3-2, ..., 3-N: viewer client 5: search and management server
51: control unit 52: database unit 53: communication interface unit
54: interface processing unit 55: reading unit 56:
57: Search unit 100: NSTL file editing program
400: viewer program

Claims (9)

delete delete delete delete An NSTL file searching and managing system for providing an NSTL file including 3D modeling data of an inputted STL (STereoLithography) file and text information as related information related to the 3D modeling data, as search results according to a search request, the system comprising:
An NSTL file creation device for creating and editing the NSTL file, and transmitting the created and edited NSTL file to the outside;
And a search and management server for storing the 3D modeling data and the text information of the NSTL file received from the NSTL file generating apparatus and searching the text information to provide a search result according to a user's search request, ,
The search and management server
A reading unit for analyzing the NSTL file and extracting the 3D modeling data and the text information; a database unit for storing the 3D modeling data and the text information extracted by the reading unit; A search unit for searching the database unit to search for NSTL files corresponding to the search keyword when a search is requested; and a display unit for displaying a list of NSTL files detected by the searching unit, A first interface processing unit,
The NSTL file generation device
A second interface processing unit for providing a user with a user interface (UI) provided with an input function for receiving the text information;
A 3D image viewer unit for analyzing and converting 3D modeling data of the input STL file to display a 3D image;
A thumbnail image generation unit for capturing a 3D image displayed by the 3D image viewer unit and generating a thumbnail image;
And a compression unit for compressing the 3D modeling data, the text information, and the thumbnail image to generate a file upon receiving the text information from the user through the second interface processing unit,
The searching and managing server stores the thumbnail image extracted in the database unit when the reading unit extracts a thumbnail image of the NSTL file received from the file generating apparatus, and the first interface processing unit stores the thumbnail image corresponding to each thumbnail Wherein the list is displayed in an album format for exposing an image. delete delete The method of claim 5, wherein the database unit of the search and management server includes a 3D modeling field in which the 3D modeling data is stored, a text information field in which the text information is stored, and a thumbnail image field in which the thumbnail image is stored The NSTL file search and management system. The method as claimed in claim 8, wherein the first interface processor of the search and management server transmits a detailed view interface in which a thumbnail image and text information of the NSTL file clicked when the user clicks one of the search result lists, To the NSTL file retrieval and management system.
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