JP2002297671A - Information processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decrease the amount of data when data for a WEB server are generated from CAD data. SOLUTION: CAD data generated by clients 21 to 23 are stored on a CAD server 24. A publisher 25 obtains the CAD data stored on the CAD server 24, specifies invisible components which can not be viewed from outside and components including the invisible parts, and deletes all the invisible data from the CAD data and only the invisible parts of the components including the invisible parts. The CAD data after the invisible components, etc., are deleted are sent to the WEB server 28, where the data are converted into the data for the WEB publication. The clients 29 to 31 access the WEB server 28 through the Internet 27 to browse desired CAD data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an information processing apparatus, and more particularly, to an information processing apparatus for converting CAD data into WEB data.

[0002]

2. Description of the Related Art Since the 1990s, three-dimensional CAD (Computer Aid) has been used as a product development and design tool mainly in the automobile industry.
Attempts have been made to shorten the development period by using ed Design). Since the 2000s, regardless of the product category, the manufacturing industry has been rapidly promoting three-dimensionalization, and the assets of three-dimensional CAD data are increasing.

[0003]

The three-dimensional CA
D data is NURBS (Non-Uniform Rational B-Spl
ines), as well as color data, creation history (history) information, etc., in addition to shape data represented by complex mathematical expressions.
It can range from a few megabytes to hundreds of megabytes.

[0004] As described above, since the data volume of the three-dimensional CAD data is enormous, it has been considered that it is difficult to utilize the data in a design and manufacturing process other than the original application. for that reason,
Conventionally, there has been a problem that CAD data created by spending such a great deal of cost and time cannot be fully utilized.

Therefore, a compression conversion tool for reducing the data amount has been developed so that the CAD data can be used for other purposes. However, since these tools perform the compression processing based on the redundancy of the data itself, there is a problem that the compression ratio cannot be changed according to the application.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an information processing apparatus capable of compressing CAD data at an appropriate compression ratio according to a use.

[0007]

According to the present invention, in order to solve the above-mentioned problems, a CAD data input means for receiving CAD data input, a deleting means for deleting predetermined data contained in the CAD data, An information processing apparatus, comprising: a transmission unit that transmits, to a web server, CAD data from which the predetermined data has been deleted by the deletion unit.

Here, the CAD data input means is a CAD data input means.
Receive data input. The deletion unit deletes predetermined data included in the CAD data. The transmitting unit transmits the CAD data from which the predetermined data has been deleted by the deleting unit to the WEB server.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram illustrating a configuration example of an embodiment of the present invention. As shown in this figure, the embodiment of the present invention is based on the intranet 20 and the clients 21 to 21.
23, CAD server 24, publisher 25, firewall 26, Internet 27, WEB server 2
8. It is composed of clients 29 to 31.

Here, the intranet 20 is an independent network within a company, and the clients 21 to 2
3. Information is transmitted between the CAD server 24 and the publisher 25.

Each of the clients 21 to 23 has a CAD application program installed therein.
Design products, etc. The CAD server 24 stores the CAD data generated by the clients 21 to 23 and supplies the CAD data to the clients 21 to 23 as necessary.

The publisher 25 is an information processing apparatus according to the present invention, and a CAD stored in the CAD server 24.
Perform pre-processing to delete unnecessary data from data,
The obtained data is uploaded to the web server 28.

The firewall 26 prevents unauthorized access from the Internet 27 to the intranet 20. The Internet 27 is a network in which computers around the world are interconnected by a network protocol based on TCP / IP packet communication.

The web server 28 is a publisher 25
Receiving the pre-processed CAD data by the WEB
Convert to 3D data that can be published on the client
If there is a request from 9 to 31, for example, HTML
Serve as a file.

The clients 29 to 31 are operated when the user browses the three-dimensional data stored in the web server 28, and displays the three-dimensional data received from the web server 28 on a browser or the like.

Next, referring to FIG.
5 will be described. As shown in FIG. 2, the publisher 25 has a CPU (Central Processi
ng Unit) 25a, ROM (Read Only Memory) 25
b, RAM (Random Access Memory) 25c, HDD
(Hard Disk Drive) 25d, GB (Graphics Board)
25e, an I / F (Interface) 25f, a bus 25g, a display device 25h, and an input device 25i.

The CPU 25a (deletion means, simplified data creation means, addition means, secret data determination means)
In addition to controlling each unit of the apparatus according to the application program stored in 5d, it executes various arithmetic processes.

The ROM 25b stores basic programs executed by the CPU 25a, data, and the like. RAM
The memory 25c temporarily stores a program being executed by the CPU 25a and data being calculated.

The HDD 25d stores various application programs executed by the CPU 25a, three-dimensional data uploaded from the publisher 25, and the like.

The GB 25e (image display means, file display means, history information display means) executes a drawing process according to the drawing command supplied from the CPU 25a, and supplies the generated image data to the display device 25h for display.

The I / F 25f (CAD data input means, transmission means) converts the expression format of the data supplied from the input device 25i and exchanges data with the intranet 20 according to a predetermined protocol.

The bus 25g includes a CPU 25a, a ROM 25
b, the RAM 25c, the HDD 25d, the GB 25e, and the I / F 25f are interconnected, and data can be exchanged between them.

The display device 25h is, for example, a CRT (Cath
ode Ray Tube) It consists of a monitor etc.
The image data supplied from 25e is displayed and output. The input device 25i (designating means) is composed of, for example, a keyboard and a mouse, and generates and outputs data according to a user operation.

Next, the operation of the above embodiment will be described. The clients 21 to 23 share and design various products by executing the installed CAD application program. The generated CAD data is transmitted to the CA via the intranet 20.
The data is collected by the D server 24, and classified and stored for each product or each part. As described later, C
Information indicating the creation history and the like are added to the AD data.

The publisher 25 is a CAD server 24
CAD data for a given product stored in
Before uploading and publishing to the WEB server 28, a pre-process for reducing the data amount is performed.

FIG. 3 shows a display example of a screen for executing the pre-processing. Note that a program for performing such screen display and pre-processing is stored in the HDD 25d, and is realized by the CPU 25a appropriately reading and executing the program.

In the display example shown in FIG. 3, "Publish"
A screen 50 entitled “er” is displayed, and its display area is composed of a frame 54 and a frame 55. In the frame 54, a group of components constituting a product to be processed is displayed according to the hierarchical structure. In the frame 55, an image of a product to be processed is displayed.

Buttons 51 to 51 are provided at the top of the screen 50.
53 is displayed. Here, the button 51 is
These buttons are operated when acquiring CAD data to be processed from the server 24. The button 52 is operated when executing a suppression process for deleting unnecessary data from the target CAD data. The button 53 is operated when uploading the preprocessed CAD data to the web server 28.

For example, on a screen 50 shown in FIG. 5, a button 51 is operated and a product "VTR: Video Tape Recorder" is displayed.
Assuming that the CAD data of “der” is designated as a target to be imported, the CPU 25a of the publisher 25
/ F25f to access the CAD server 24 to obtain CAD data of the designated "VTR"
5d.

Next, the CPU 25a analyzes the attribute information of the acquired CAD data, acquires the hierarchical structure of the components included in the CAD data, and displays the analysis result on the frame 54 of the screen 50. Also, the CPU 25a
Displays the drawing data (vector data) included in the acquired CAD data in the frame 55. As a result, the screen 50 shown in FIG. 3 is displayed on the display device 25h.

Next, the details of the suppression process will be described. If the button 52 on the screen 50 shown in FIG. 3 is operated, a pull-down menu 5 shown in FIG.
2a is displayed. In this display example,
Hidden parts, fine shapes, complicated structures, security, manuals are displayed.

In this pull-down menu 52a, as shown in FIG. 5, if the "hidden portion" is selected by the pointer 59, the publisher 25 determines that the invisible parts whose entirety cannot be visually recognized from the outside are displayed as C.
A process is executed to delete all the parts from the AD data, and delete only the part from the CAD data for a part of which only a part cannot be visually recognized.

FIG. 6 is a flow chart for explaining an example of the processing executed when the hidden part is selected. When this flowchart is started, the following steps are executed.

Step S10: The CPU 25a determines a viewpoint for observing the product. In addition, as a viewpoint, for example, when the product is arranged on the XY plane such that the front panel is oriented in the X-axis direction, the X direction, the -X direction, the Y direction, the -Y direction, the Z direction, and , −Z direction as the viewpoint.

Step S11: The CPU 25a executes the CAD
The data is rotated according to the viewpoint determined in step S10. For example, in the case of the first processing, since the X direction is determined as the viewpoint, the CAD data of the product is rotated so as to correspond to a case where the product is viewed from the X direction.

Step S12: The CPU 25a executes the CAD
The polygon data constituting the data component is sorted from the back to the front of the screen. For example, when the viewpoint is in the X-axis direction, the polygons are sorted in ascending order of the X-axis coordinates.

Step S13: The CPU 25a determines a normal vector of each polygon based on the normal vector method, and determines whether the polygon is visible or invisible.

Step S14: The CPU 25a arranges polygons sequentially from the back of the screen. As a result, the foremost component is displayed on the screen. For example,
When the above-described X direction is set as the viewpoint, the polygons are arranged in ascending order of the X coordinate value.

Step S15: The CPU 25a specifies a polygon displayed on the screen (a polygon visible from the viewpoint), and specifies a component (visible component) including the polygon.

Step S16: The CPU 25a specifies the visible part of the visible component specified in step S15. Step S17: The CPU 25a determines whether or not the processing has been completed for all viewpoints. If the processing has been completed for all viewpoints, the process proceeds to step S18; otherwise, the process returns to step S10. The same processing is repeated.

Step S18: The CPU 25a executes the CAD
Delete all but visible parts from the data. Step S19: The CPU 25a determines from the CAD data
For parts whose part is visible, the parts other than the visible part are deleted.

When the above processing is executed, for example, in the example of the VTR shown in FIG. 3, all the components incorporated in the housing, for example, the power supply circuit, the main circuit, the head, etc. These are all deleted because the parts are invisible. As for the operation buttons, only the portion protruding from the housing is a visible portion, and the other portions are deleted.

FIGS. 7 and 8 are diagrams for explaining an example of processing for deleting an invisible part of a part that is partially visible. FIG.
7A and 7B show operation buttons before such deletion is performed. FIG. 7A is a view of the operation buttons as viewed from the front, and FIG. 7B is a view as viewed from the back. As shown in this figure, the operation buttons are integrally formed in a state where a plurality of buttons are connected. Further, a protrusion for pressing the switch is formed on the back surface.

FIG. 8 shows the operation buttons after the invisible portion has been deleted. As shown in FIG. 8 (A), the connecting portion connecting the buttons is disposed at the rear of the front panel and is invisible, and thus has been deleted. Further, as shown in FIG. 8 (B), the projection formed on the rear surface of the operation button is also invisible and thus is deleted.

As described above, by deleting the connecting portion and the protruding portion, in this example, the data amount is reduced to 10 Mbytes.
e has been reduced to 5 Mbytes. FIG. 9 is a diagram illustrating another example of deleting an invisible portion. This example is a diagram showing the rear surface of the front panel. In the example shown in FIG. 9A, a hole for inserting a power switch and a display is formed on the rear surface of the front panel, and the periphery thereof is formed. Projections (see arrows) are provided mainly for the purpose of improving strength.

Incidentally, since such a protruding portion cannot be visually recognized from the surface, it corresponds to an invisible portion, and is therefore to be deleted. FIG. 9B is a diagram illustrating a state in which the protrusion is deleted.

By the above processing, the visible component and the invisible component are distinguished from each other, and the invisible component and the invisible part of the visible component are deleted from the CAD file, so that the data amount can be reduced.

In the above-described processing, only the invisible portion is deleted for a component having an invisible portion. However, the component may be left without being deleted. Even in such a case, if the CAD data is deleted from the invisible parts, the data amount can be reduced at a fixed rate.

Next, a pull-down menu 52 shown in FIG.
The processing when a fine shape is selected in the menu a will be described. When the fine shape is selected, FIG.
Is displayed as shown in FIG. In this display example, a screen 10 entitled “Suppression of fine shape” is displayed.
0 is displayed, and a text box 10 is displayed in the display area.
1 to 103 and buttons 104 and 105 are displayed.

Here, the maximum length of the minute shape to be omitted is input to the text box 101. In the text box 102, the radius of the minute shape to be omitted is input. In the text box 103,
The inside diameter of the minute shape to be omitted is input.

The button 104 is operated when starting processing with the contents input on the screen 100. The button 105 is operated when canceling the input contents.

When a button 104 is operated after a predetermined numerical value is input on such a screen 100, FIG.
1 is performed. When this flowchart is started, the following steps are executed.

Step S30: The CPU 25a determines in FIG.
Of the screen 100 shown in FIG.

Step S31: The CPU 25a executes the CAD
A search is made from the data for a corresponding portion including the dimensions specified on the screen 100 shown in FIG.

Step S32: The CPU 25a deletes the pertinent part specified in step S31 from the CAD data.

Step S33: The CPU 25a determines whether or not the search for all data is completed. If all the search is completed, the process ends. Otherwise, the process returns to step S31 and returns to the step S31. Is repeated.

According to the above-described processing, a fine shape having a predetermined size or less is deleted from the CAD data. For example, FIG.
When the setting as shown in is made, the protruding portion formed on the housing and having a maximum length of 3 mm (<5 mm) is deleted, and the radius formed on the side of the housing is 2 mm (<5 mm). A curved surface portion is deleted, and a hole having an inner diameter of 3 mm (<5 mm) formed in the front panel is deleted.

Next, on the screen 100 shown in FIG.
Processing when a complicated structure is specified will be described. When a complicated structure is designated, a screen 120 shown in FIG. 12 is displayed on the display device 25h. In this display example, a screen 120 entitled "Complicated structure suppression" is displayed, and a check box 121 and its description "Approximation of curved surface by plane" and buttons 122 and 1 are displayed in the display area.
23 is displayed.

The check box 121 is checked when approximating a curved surface by a plane. The button 122 is operated when executing processing with the input contents. The button 123 is operated when canceling the input content.

When the button 122 is operated after the check box 121 is checked, the flowchart shown in FIG. 13 is executed. When this flowchart is started, the following steps are executed.

Step S50: The CPU 25a sets the screen 1
The data set at 20 is acquired. Step S51: The CPU 25a determines whether approximation of a curved surface by a plane has been selected on the screen 120 and execution of the approximation is necessary. As a result, if it is necessary to execute the process, the process proceeds to step S52; otherwise, the process ends.

Step S52: The CPU 25a executes the CAD
Search for the relevant part from the data. That is, the CPU 25
“a” searches for a curved surface included in the CAD data. Note that, in order to reduce the amount of data by approximation, the target curved surface needs to have a certain size, so that, for example, the search can be narrowed down by a radius of curvature or an area of the portion. desirable.

Step S53: The CPU 25a executes an approximation process by replacing the curved surface detected in step S52 with a plurality of planes.

Step S54: The CPU 25a determines whether or not all the searches have been completed. If the approximation has been completed for all the parts, the process is terminated. Is repeated.

FIG. 14 is a diagram showing an example of approximation of a curved surface according to the flowchart shown in FIG. The upper side of the housing and the side surface of the front panel shown in FIG. 14A are curved surfaces. When the processing shown in FIG. 13 is performed on such a part, the part is approximated by a plurality of planes as shown in FIG. In this example, as shown in an enlarged manner in a portion surrounded by a broken line, FIG.
The curved surface shown in (A) is approximated by a plurality of planes.

According to the above processing, a curved surface can be approximated by a plurality of planes, and as a result, the amount of CAD data can be reduced. Next, a process executed when “security” is selected on the screen 50 shown in FIG. 4 will be described.

In this example, a part not desired to be disclosed to the outside is given a name including a predetermined keyword at the time of design, and the part including the keyword is deleted from the CAD data at the time of pre-processing. In addition, these components can be kept secret and the data amount can be reduced.

When security is selected in the pull-down menu 52a shown in FIG. 4, a screen 140 shown in FIG. 15 is displayed on the display device 25h. In this display example, a screen 140 entitled "Suppression based on security" is displayed, and text boxes 141 and 142 and buttons 143 and 14 are displayed in the display area.
4 is displayed.

Here, the text boxes 141, 142
Is input with a keyword for designating a file to be omitted. In this example, “SECRET *. *” Is entered as a keyword in the text box 141, and “CONFI *. *” Is entered in the text box 142 as a keyword. Here, the symbol “*” is a wild card, and indicates an arbitrary character or character string. Therefore, in this example, a file including the character string “SECRET” or the character string “CONFI” at the beginning of the file name is selected as a file that is not to be disclosed.

When the button 143 is operated after such data is input, the flowchart shown in FIG. 16 is executed. When this flowchart is started, the following steps are executed.

Step S70: The CPU 25a determines in FIG.
The data (keyword) set on the screen 140 shown in FIG.

Step S71: The CPU 25a determines in FIG.
Is searched from the CAD data for a part that includes the keyword entered in the text boxes 141 and 142 shown in FIG.

Step S72: The CPU 25a executes the CAD
Delete the corresponding part from the data. Step S73: The CPU 25a determines whether or not all the files have been searched. If all the files have been searched, the CPU 25a ends the process. Otherwise, the process returns to step S71 to return to the same step. Repeat the process.

According to the above processing, a part (eg, SECRET_BUHIN.DAT) including a predetermined keyword (eg, SECRET) is assigned to a part that is not desired to be disclosed (eg, a part having patentability). At the time of pre-processing, by specifying SECRET as a keyword,
D data can be deleted. As a result, it is possible to secure security and reduce the amount of data.

Next, the processing when "manual" is selected in FIG. 4 will be described. When the manual is selected, a screen 160 shown in FIG. 17 is displayed on the display device 25h.

In this display example, a screen 160 titled "suppression by manual operation" is displayed, and check boxes 161 to 16 are displayed in the display area.
3 and buttons 164 and 165 are displayed.

Here, the check box 161 is selected as shown in FIG.
This is checked when specifying a portion to be omitted in component units in the graphic displayed in the frame 54 shown in FIG. The check box 162 is checked when a part to be omitted for each component is specified in the file displayed in the frame 54 shown in FIG. The check box 163 is checked when designating a portion to be omitted in feature units on a feature screen described later.

The button 164 is operated when starting the processing with the input contents, and the button 165 is operated when canceling the input contents. In such a screen 160, when the check box 161 or the check box 162 is checked and the button 164 is operated, a portion to be deleted is indicated by a pointer in the frame 54 or 55 as shown in FIGS. It becomes possible to directly specify and delete at 59.

For example, when the check box 162 is checked, the "main circuit" displayed on the frame 54 is designated by the pointer 59 as shown in FIG. Is performed, the sub screen 170 is displayed.

The sub-screen 170 is a screen for confirming whether or not to delete the designated component. When the button 170a displayed at the center of the sub-screen 170 is operated, the CPU 25a Is the specified part
A process for deleting from the AD data is executed. As a result, C
The portion corresponding to the main circuit is deleted from the AD data, and the display relating to the main circuit is also deleted from the frame 54 as shown in FIG. Although not shown in this figure, the deleted main circuit is also deleted from the frame 55.

When the check box 161 is checked, as shown in FIG. 20, the "handle" displayed on the frame 55 is designated by the pointer 59, and a predetermined operation is performed on the input device 25i. Is performed, the sub screen 170 is displayed.

This sub-screen 170 is a screen for confirming whether or not to delete the specified component, as in the case described above. The button 1 displayed at the center of this screen is
When 70a is operated, the CPU 25a executes a process of deleting the designated component from the CAD data. As a result, the part corresponding to the handle is deleted from the CAD data, and the display related to the handle is also deleted from the screen as shown in FIG. Although not shown in this figure, the deleted handle is also deleted from the frame 54.

FIG. 22 is a flowchart for realizing the above processing. When this flowchart is started, the following steps are executed. Step S110:
The CPU 25a acquires the data set on the screen 160 shown in FIG.

Step S111: The CPU 25a determines whether or not a graphic has been selected, that is, whether or not the check box 161 has been selected. If it is determined that the check box 161 has been selected, the CPU 25a proceeds to step S11.
The process proceeds to step S114. Otherwise, the process proceeds to step S114.

Step S112: The CPU 25a determines whether or not a predetermined component has been designated in the frame 55. If a component has been designated, the process proceeds to step S113. Otherwise, the process proceeds to step S114.

Step S113: The CPU 25a executes a process of deleting the item selected in the frame 55 from the CAD data. After the deletion, the display contents on the screen are updated in accordance with the deleted data.

Step S114: The CPU 25a determines whether a file has been selected,
It is determined whether or not 2 is selected, and check box 16 is selected.
If it is determined that No. 2 has been selected, the process proceeds to step S115; otherwise, the process proceeds to step S117.

Step S115: The CPU 25a determines whether or not a predetermined component has been designated in the frame 54. If a component has been designated, the process proceeds to step S116, otherwise proceeds to step S117.

Step S116: The CPU 25a executes a process of deleting the item selected in the frame 54 from the CAD data. After the deletion, the display contents on the screen are updated in accordance with the deleted data.

Step S117: The CPU 25a determines whether or not the processing is completed. If the processing is not completed, the flow returns to step S111 to repeat the same processing. Otherwise, the processing ends.

According to the above-described processing, it is possible to delete a desired part by directly specifying the part displayed in the frame 54 or the frame 55 of the screen 50 with the pointer 59. Therefore, components that cannot be specified by the other specifying methods described above can also be deleted.

Next, the operation when the feature unit is specified on the screen 160 shown in FIG. 17, that is, when the check box 163 is checked will be described. In the following, after the basic concept of a feature is briefly described, a specific operation of omission in units of a feature will be described.

FIGS. 23 and 24 are views for explaining features when designing a sheet metal part. FIG.
In (A), an L-shaped base shape is created.

In FIG. 23B, a part of the right side of the base shape is bent to form a bent portion shape. In FIG. 23C, the plate thickness is added.

In FIG. 23D, a projection shape a and a projection shape b are added. Note that these projection shapes a and b
Belong to different features. FIG.
In (E), a hole shape c is added to the center of the base shape.

In FIG. 24A, a hole shape d is added to the right end of the base shape. In FIG. 24B, outer angles R (see arrows) are added to both ends and bent portions of the base shape.

In FIG. 24C, a bending angle R (see arrow) is added to the bent portion at the right end of the base shape.
In FIG. 24D, a print character “Made in Japan” is added to the left part of the base shape.

FIG. 25 is a display example of a screen displaying the features corresponding to the sheet metal parts created by the above procedure. In this display example, a screen 190 entitled "Feature" is displayed, and its display section 194 displays each feature together with a number. On the right end of the display unit 194, buttons 191 and 192 and a slider 193 for scrolling the display content up and down are displayed.

In such a screen 190, as shown in FIG. 26, when "9. Add external angle R" is designated by the pointer 59 and a predetermined operation is performed on the input device 25i, as shown in FIG. Is displayed as shown in FIG.

When the button 170a is operated on such a sub-screen 170, the CPU 25a executes suppression for the specified feature. As a result, in this example, since the outer shape angle R is deleted from the CAD data, the base shape is in the state shown in FIG. Also, the CPU 25a, as shown in FIG.
The specified feature is deleted from the screen 190.

FIG. 28 is an example of a flowchart for realizing the above processing. When this flowchart is started, the following steps are executed. Step S130:
The CPU 25a acquires the data set on the screen 160 shown in FIG.

Step S131: The CPU 25a determines whether or not a feature has been selected on the screen 160.
That is, it is determined whether or not the check box 163 is checked.
Proceed to 132, otherwise terminate the process.

Step S132: The CPU 25a executes the processing in FIG.
5 is displayed on the display device 25h.

Step S133: The CPU 25a determines whether or not a predetermined item has been selected on the screen 190, and if it has been selected, the process proceeds to step S134; otherwise, the process ends.

Step S134: The CPU 25a determines whether or not the execution of the suppression is instructed, that is, whether or not the button 170a is operated on the sub-screen 170. If the button 170a is operated, the process proceeds to step S134.
Proceed to 135, otherwise terminate the process.

Step S135: The CPU 25a sets the CA
The part corresponding to the selected feature is searched from the D data, and processing for deleting the part is executed.

Step S136: The CPU 25a determines whether or not the processing is completed, and if not completed, returns to step S133 to repeat the same processing as described above, and otherwise ends the processing. .

According to the above processing, it is possible to delete a corresponding part by designating a feature. For each feature, copy the part created by the previous feature multiple times to form a new part,
Since a procedure such as copying a library a plurality of times is often used, similar portions can be collectively deleted.

The CAD data from which the pre-processing has been executed and unnecessary parts and the like have been deleted are uploaded to the WEB server 28 by operating the button 53 shown in FIG. Become.

The web server 28 converts the preprocessed CAD data into, for example, an HTML file,
Store. Then, when a browsing request is made from the clients 29 to 31, the corresponding HTML file is acquired and transmitted to the requesting client via the Internet 27.

In the clients 29 to 31, the received H
By displaying the TML file on, for example, a browser, the three-dimensional shape of the product can be viewed. In the above embodiment, the CAD server 24,
Although the publisher 25 and the web server 28 are configured independently, they can be integrated as appropriate.

Further, in the above embodiment, the pre-processing is started when the button 52 shown in FIG. 3 is operated, but the pre-processing is automatically performed regardless of the operation of the button. May be executed.

Furthermore, the above-described flowchart is an example, and it goes without saying that the present invention is not limited to such a case. Finally, the above processing functions can be realized by a computer. In this case, a program is provided that describes the processing contents of the functions that the (device according to the present invention) should have. By executing the program on a computer, the processing functions are realized on the computer. The program describing the processing content can be recorded on a computer-readable recording medium. Computer-readable recording media include magnetic recording devices, optical disks, magneto-optical recording media, and semiconductor memories. The magnetic recording device includes a hard disk device (HDD), a floppy (registered trademark) disk (FD), a magnetic tape, and the like. Optical disc devices include DVD (Digital Versatile Disk), C
There is a D-ROM (Compact Disk Read Only Memory) and the like. CD-R (Recordable) / RW
(ReWritable), DVD-RAM (Random Access Memor)
y) and MO (Magneto-Optical disk).

When distributing a program, for example, a DVD or CD-ROM on which the program is recorded
And other portable recording media are sold. Alternatively, the program may be stored in a storage device of a server computer, and the program may be transferred from the server computer to another computer via a network.

The computer that executes the program stores, for example, the program recorded on the portable recording medium or the program transferred from the server computer in its own storage device. Then, the computer reads the program from its own storage device and executes processing according to the program. Note that the computer can also read the program directly from the portable recording medium and execute processing according to the program. Further, each time the program is transferred from the server computer, the computer may sequentially execute processing according to the received program.

[0116]

As described above, according to the present invention, CAD
CAD data input means for receiving data input;
A deletion means for deleting predetermined data included in the AD data and a transmission means for transmitting the CAD data from which the predetermined data has been deleted by the deletion means to a WEB server are provided. , It is possible to reduce the amount of data transmitted to the WEB server.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration example of an embodiment of the present invention.

FIG. 2 is a diagram showing a detailed configuration example of a publisher shown in FIG. 1;

FIG. 3 is a display example of a screen displayed on a display device of the publisher shown in FIG. 2;

FIG. 4 is an example of a pull-down menu displayed when a button 52 is operated on the screen shown in FIG. 3;

FIG. 5 is a display example when a hidden part is designated in the pull-down menu shown in FIG. 4;

6 is a flowchart illustrating an example of a process executed when a hidden part is designated in the pull-down menu shown in FIG.

FIG. 7 is a diagram illustrating an example of a part that is partially visible.

FIG. 8 is a diagram illustrating an example of a case where an invisible part of a part that is partially visible is deleted.

FIG. 9 is a diagram illustrating an example in which an invisible part of a part that is partially visible is deleted.

FIG. 10 is a display example when a fine shape is designated in the pull-down menu shown in FIG. 4;

11 is a flowchart illustrating an example of a process executed when a button 104 is operated on the screen illustrated in FIG.

FIG. 12 is a display example when a complicated structure is designated in the pull-down menu shown in FIG. 4;

13 is a flowchart illustrating an example of a process performed when a button 122 is operated on the screen illustrated in FIG.

FIG. 14 is a diagram illustrating an example of a case where a curved surface is approximated by a plane by the processing illustrated in FIG. 13;

FIG. 15 is a display example when security is designated in the pull-down menu shown in FIG. 4;

16 is a flowchart illustrating an example of a process performed when a button 143 is operated on the screen illustrated in FIG.

FIG. 17 is a display example when a manual is designated in the pull-down menu shown in FIG. 4;

FIG. 18 is a display example when a file is designated by a manual operation and a corresponding part is deleted.

FIG. 19 is a display example when a file is designated by a manual operation and a corresponding part is deleted.

FIG. 20 is a display example when a graphic is designated by a manual operation and a corresponding part is deleted.

FIG. 21 is a display example when a graphic is designated by a manual operation and a corresponding part is deleted.

FIG. 22 shows check boxes 161 and 16 shown in FIG.
9 is a flowchart illustrating an example of a process performed when No. 2 is checked.

FIG. 23 is a view for explaining features relating to sheet metal parts.

FIG. 24 is a view for explaining features relating to a sheet metal part.

FIG. 25 is an example of a screen displaying a list of features relating to the sheet metal part shown in FIGS. 23 and 24;

26 is a display example when a predetermined item is designated on the screen shown in FIG.

27 shows a button 170 on the sub-screen shown in FIG. 26.
It is an example of a display after a was operated.

FIG. 28 shows a button 170 on the sub screen shown in FIG. 26.
11 is a flowchart illustrating an example of a process performed when “a” is operated.

[Explanation of symbols]

20: intranet, 21 to 23: client, 24: CAD server, 25: publisher,
25a CPU, 25b ROM, 25c RA
M, 25d ROM, 25e GB, 25f I
/ F, 25g ... bus, 25h ... display device, 25i ...
... Input device, 26 ... Firewall, 27 ... Internet, 28 ... Web server, 29-31 ... Client

Claims (13)

[Claims] 1. A CAD data input unit that receives an input of CAD data, a deletion unit that deletes predetermined data included in the CAD data, and a C in which the predetermined data is deleted by the deletion unit.
An information processing apparatus, comprising: transmission means for transmitting AD data to a web server. 2. The information processing apparatus according to claim 1, wherein the predetermined data is data relating to an invisible portion that cannot be visually recognized from the outside, and the deletion unit deletes data relating to the invisible portion. 3. The information processing apparatus according to claim 1, wherein the predetermined data is data related to a fine shape having a size equal to or smaller than a predetermined size, and the deleting unit deletes the data related to the fine shape. 4. The information processing apparatus according to claim 1, wherein the predetermined data is data relating to a complex structure, and wherein the deleting unit deletes the data relating to the complex structure. 5. A simplified data generating unit for generating simplified data obtained by simplifying the complex structure deleted by the deleting unit, and the simplified data generated by the simplified data generating unit is converted to the complex structure. The information processing apparatus according to claim 4, further comprising: an adding unit that adds instead of: 6. The information processing apparatus according to claim 1, wherein the predetermined data is confidential data that is not intended to be disclosed, and the deletion unit deletes the confidential data. 7. The information processing apparatus according to claim 6, further comprising a secret data discriminating unit that discriminates the secret data from a keyword included in the file. 8. The information processing apparatus according to claim 1, wherein the predetermined data is data specified by a user, and wherein the deleting unit deletes the data specified by the user. 9. An image display means for displaying an image related to the CAD data on a display device, and a designation means for designating a predetermined portion of the image displayed on the display device, wherein the deletion means 9. The information processing apparatus according to claim 8, wherein the CAD data corresponding to the portion designated by the designation means is deleted. 10. A file display unit for displaying a list of files constituting the CAD data on a display device, and a designation unit for designating a predetermined file displayed on the display device, wherein the deletion unit 9. The information processing apparatus according to claim 8, wherein said file deletes a file designated by said designation means. 11. History information display means for displaying history information when the CAD data is created on a display device, and designation means for designating predetermined history information displayed on the display device. 9. The information processing apparatus according to claim 8, wherein the deletion unit deletes the CAD data corresponding to the history information specified by the specification unit. 12. CAD data input means for receiving an input of CAD data, deletion means for deleting predetermined data included in the CAD data, and C for which the predetermined data has been deleted by the deletion means.
A program that causes a computer to function as a transmission unit that transmits AD data to a Web server. 13. CAD data input means for receiving an input of CAD data; deleting means for deleting predetermined data included in said CAD data; C for which said predetermined data has been deleted by said deleting means.
A computer-readable recording medium that records a program that causes a computer to function as a transmission unit that transmits AD data to a Web server.