JP2016012281A - Information processor, information processing system, and method for control and program thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mechanism that enables users to easily confirm a stress value satisfying predetermined conditions and a location with the stress value in a predetermined location of a three-dimensional model.SOLUTION: The information processor stores a three-dimensional model showing a three-dimensional form of a designed object and calculates the values of stresses on the parts of the model. Further, the information processor receives specification of a predetermined region of the model, determines a location of the model which indicates a stress value satisfying predetermined conditions out of the calculated stress values in the specified region, and displays, on the model, information in the predetermined region and information on the location with the stress value satisfying the conditions in the region.

Description

  The present invention relates to an information processing apparatus, an information processing system, a control method thereof, and a program.

There is a task of checking the strength of a desired location for a three-dimensional model created by a CAD application and checking whether a product created based on the data of the three-dimensional model can withstand use.
Conventionally, there is a technique of specifying the maximum stress on the entire surface of the three-dimensional model, specifying the location of the maximum stress, and presenting it to the user (for example, Patent Document 1).

JP 2009-237672-A

  For example, there are cases where there are a plurality of places where a load is applied on one three-dimensional model, that is, there are a plurality of places where it is necessary to check and reinforce durability. Since Patent Document 1 confirms the maximum stress and the position corresponding to the maximum stress in the entire three-dimensional model, the stress value at the position (position) on the three-dimensional model desired by the user cannot always be known.

  In addition, by changing the surface color of the 3D model according to the level of the stress value and displaying it, the low stress area and the high stress area on the 3D model can be identified and displayed. Generally done. When this technology is used, the user can sensuously discriminate the location where the stress value will be higher by color and specify the desired location on the three-dimensional model (mouse click), thereby specifying the location using the CAD application. Although the stress value for the selected location is displayed and can be confirmed, the location specified by the user is not necessarily the location where the maximum stress value in the location / range of the 3D model desired by the user is shown.

  An object of the present invention is to provide a mechanism that allows a user to easily confirm a stress value that satisfies a predetermined condition and a position corresponding to the stress value at a predetermined location on a three-dimensional model.

  An information processing apparatus of the present invention is an information processing apparatus including a storage unit that stores a three-dimensional model indicating a three-dimensional shape of a design, and a calculation unit that calculates a value of stress applied to each part of the three-dimensional model, A range designation accepting unit for accepting designation of a predetermined range on the three-dimensional model; a stress value calculated by the calculating unit; and a predetermined condition among stress values within the range designated by the range designation accepting unit Position specifying means for specifying a position on the three-dimensional model indicating a stress value satisfying the condition, information on a predetermined range specified by the range specification receiving means, and within a specified range specified by the position specifying means Display control means for displaying information on a position indicating a stress value satisfying a predetermined condition on the three-dimensional model.

  According to the present invention, it is possible to provide a mechanism that allows a user to easily confirm a stress value that satisfies a predetermined condition and a position related to the stress value at a predetermined location on the three-dimensional model.

It is a figure which shows an example of a structure of the information processing system in embodiment of this invention. It is a figure which shows an example of the hardware constitutions of various apparatuses in embodiment of this invention. It is a figure which shows an example of a function structure of the various apparatuses in embodiment of this invention. It is a flowchart which shows the outline | summary of a process in embodiment of this invention. It is a flowchart which shows the detail of the analysis result display process in embodiment of this invention. It is a figure which shows an example of the mode of a display screen transition accompanying the starting of the analysis result output program in embodiment of this invention. It is a figure which shows an example of a structure of the information input screen in embodiment of this invention. It is a figure which shows an example of a structure of the display screen which has arrange | positioned the temporary body in embodiment of this invention. It is a figure which shows an example of a structure of the display screen which has arrange | positioned the mirror temporary body in embodiment of this invention. It is a figure which shows an example of a structure of the display screen which displays an analysis result in embodiment of this invention. It is a figure which shows an example of a structure of the analysis result display screen in embodiment of this invention. It is a figure which shows an example of a structure of the analysis information list | wrist in embodiment of this invention. It is a figure which shows an example of a structure of the analysis result log | history in embodiment of this invention. It is a figure which shows an example of a structure of the analysis result display screen in embodiment of this invention.

  With reference to FIG. 1, an example of the configuration of an information processing system in the embodiment of the present invention will be described.

  In the information processing system of the present invention, a client PC 100 and a server 200 are installed, and these devices are connected to each other via a network such as a LAN (Local Area Network) 101 so as to be able to perform data communication with each other. The configuration of various terminals or servers connected to the LAN 101 in FIG. 1 is an example, and it goes without saying that there are various configuration examples depending on the application and purpose.

  The server 200 stores CAD data. In the client PC 100, a CAD application program for editing CAD data and an analysis result output program are stored in the ROM 202 or the external memory 211 in FIG. 2 described later, and the CPU 201 reads out to the RAM 203 in response to an instruction from the user. Various operations.

  The three-dimensional CAD application creates or constructs a three-dimensional model (object) indicating a three-dimensional shape of a design object and creates a two-dimensional drawing based on the three-dimensional model in accordance with an operation from the user. Furthermore, in the 3D CAD application, the 3D model is displayed, and the stress value on the entire surface (the point forming the surface) of the 3D model is calculated by the user's operation using the analysis function on the CAD application. Display on the display screen.

  The analysis result output program is a program that accepts designation of a predetermined range for acquiring a stress value and displays an analysis result within the predetermined range on a display screen. The analysis result output program may be an add-on to the three-dimensional CAD application, or may be a separate independent program. Here, the analysis result output program will be described as an add-on for a three-dimensional CAD application.

  Hereinafter, it is assumed that various processes in the embodiment of the present invention are executed by the CPU 201 of the client PC 100 using the CAD application program and the analysis result output program. The above is the description of FIG.

  Next, an example of the hardware configuration of various devices in the embodiment of the present invention will be described with reference to FIG.

  In FIG. 2, reference numeral 201 denotes a CPU that comprehensively controls each device and controller connected to the system bus 204. Further, the ROM 202 or the external memory 211 is necessary to realize a BIOS (Basic Input / Output System) or an operating system program (hereinafter referred to as an OS), which is a control program of the CPU 201, or a function executed by each server or each PC. Various programs to be described later are stored.

  A RAM 203 functions as a main memory, work area, and the like for the CPU 201. The CPU 201 implements various operations by loading a program or the like necessary for execution of processing from the ROM 202 or the external memory 211 into the RAM 203 and executing the loaded program.

  An input controller 205 controls input from a keyboard (KB) 209 or a pointing device such as a mouse (not shown). A video controller 206 controls display on a display device such as a CRT display (CRT) 210. In FIG. 2, although described as CRT 210, the display device is not limited to the CRT, but may be another display device such as a liquid crystal display. These are used by the administrator as needed.

  A memory controller 207 is connected to the hard disk (HD), flexible disk (FD), or PCMCIA card slot for storing a boot program, various applications, font data, user files, editing files, various data, etc. via an adapter. The access to the external memory 211 such as a compact flash (registered trademark) memory is controlled.

  A communication I / F controller 208 is connected to and communicates with an external device via a network (for example, the LAN 101 shown in FIG. 1), and executes communication control processing on the network. For example, communication using TCP / IP is possible.

  Note that the CPU 201 enables display on the CRT 210 by executing outline font rasterization processing on a display information area in the RAM 203, for example. In addition, the CPU 201 enables a user instruction with a mouse cursor (not shown) on the CRT 210.

  Various programs to be described later for realizing the present invention are recorded in the external memory 211 and executed by the CPU 201 by being loaded into the RAM 203 as necessary. Furthermore, definition files and various information tables used when executing the program are also stored in the external memory 211, and a detailed description thereof will be described later. The above is the description of FIG.

  Next, with reference to FIG. 3, an example of a functional configuration of various apparatuses in the embodiment of the present invention will be described.

  The CAD data storage unit 301 and the CAD data storage unit 321 are storage units that store CAD data of a three-dimensional model. Klein and the PC 100 acquire CAD data from the CAD data storage unit 301 of the server 200, store the acquired CAD data in the CAD data storage unit 301 of the own terminal, read it with a CAD application, and display it on the display screen.

  The analysis processing unit 302 is a processing unit (CAM function unit) that analyzes a stress value in a CAD application. Since the calculation method of the stress value is known as disclosed in Patent Document 1, the description thereof is omitted here.

  The analysis result display control unit 303, in accordance with an instruction from the analysis result output program, at a predetermined location (predetermined range) on the three-dimensional model specified by the analysis result output range specifying unit 311 of the analysis result output program. It is a processing unit that displays a stress value satisfying a predetermined condition and a position indicating the stress value and notifies the user of the stress value. For example, the maximum stress value in a predetermined range on the three-dimensional model and the position indicating the maximum stress value are displayed.

  The mirror feature specifying unit 304 determines whether the three-dimensional model in the position / range specified by the analysis result output range specifying unit 311 is a three-dimensional model (having a mirror feature attribute) created by the mirror function of the CAD application. To identify. That is, for example, it is specified whether the three-dimensional model in the position / range specified by the analysis result output range specifying unit 311 is a three-dimensional model that is bilaterally symmetric (or vertically symmetric, or symmetric / symmetric model).

  The history information display unit 305 is a display unit that reads past analysis results and displays them on the display screen.

  The analysis result acquisition unit 312 is an acquisition unit that acquires an analysis result of stress values in the entire three-dimensional model from a CAD program (CAD application). The output result determination unit 313 uses the stress value of each range area in the entire three-dimensional model acquired from the CAD application and the position information indicated by the range area within the range specified by the analysis result output range specification unit 311. Is a determination unit that specifies stress values and positions that satisfy a predetermined condition (result output condition) (for example, the top three stress values) and determines the data to be output to the CAD application to be displayed on the display screen.

  The analysis result output unit 314 outputs the stress value determined to be output to the CAD application as the analysis result by the output result determination unit 313 and information on the position corresponding to the stress value (position indicating the stress value) to the CAD application. Part.

The mirror feature specification request unit 315 is a processing unit that requests the CAD application to check whether or not the three-dimensional model for obtaining the analysis result has attribute information of the mirror feature.
The history information storage unit is a storage unit that stores an analysis result within a predetermined range on the three-dimensional model in association with the three-dimensional model. The above is the description of FIG.

  Next, with reference to FIG. 4, an outline of processing in the embodiment of the present invention will be described.

  The CPU 201 of the client PC 100 starts the CAD application stored in the external memory 211 according to an instruction from the user (step S401), accesses the external memory of the server 200, and outputs the analysis result of the specified range. The CAD data specified in the external memory is received, the CAD data is acquired from the server 200 and stored in the external memory of the client PC 100, and the CAD data that receives the specification is opened (step S402). Then, the target CAD data is displayed (step S403). Here, it is assumed that the analysis of the stress value of the three-dimensional model of the open CAD data has already been completed. For example, as shown in the display unit 601 of the display screen 600 of FIG. The analysis result analyzed by the function is displayed with a three-dimensional model that is identified and displayed in color based on the analysis function of the stress value of the CAD application.

  The CPU 201 of the client PC 100 activates the analysis result output program stored in the external memory 211 in accordance with an instruction from the user (step S404). For example, an instruction to press a “tool” button 602 on the display screen 600 is received, and an instruction to press a button indicating an analysis result output program in a displayed tool list (not shown) is received, whereby an analysis result output program is received. Start up.

  Then, it is determined whether the three-dimensional model of CAD data opened in step S402 has already completed the analysis of the stress value (step S405). Specifically, whether or not the analysis of the stress value has been completed is determined by the analysis result output program outputting a confirmation request as to whether or not the analysis has been completed to the CAD application. The analysis result information (analysis information list 1200 described later in the description of FIG. 12) stored in association with the CAD data is stored in the external memory, and the stress value It is determined whether the analysis is complete. When there is information of analysis result information corresponding to the three-dimensional model being displayed, it is determined that the three-dimensional model is an analyzed three-dimensional model.

  If the CPU 201 of the client PC 100 determines that the analysis has not been completed (NO in step S405), the process returns to step S403. If it is determined that the analysis has been completed (YES in step S405), the analysis result output program opens the information input screen 700 (FIG. 7), and the CAD application is displayed in step S402 as shown in the display unit 603 in FIG. The three-dimensional model opened in step 1 is further opened (opened in the second window), and the display screen display is changed as indicated by reference numeral 610 in FIG. 6 (step S406). That is, the three-dimensional model (CAD data) displayed (opened) on the display unit 601 and the display unit 603 is the same CAD data.

  The display unit 603 specifies a predetermined range in which a stress value analysis result is to be acquired (creation / display of a temporary body), and an analysis result within the predetermined range, which satisfies a predetermined condition (result output condition) It is a display part which displays (analysis result).

  Here, an example of the configuration of the information input screen in the embodiment of the present invention will be described with reference to FIG. The information input screen 700 is a screen that accepts designation of a predetermined range in which an analysis result is desired to be acquired and a predetermined condition, which are displayed by the analysis result output program.

  701 creates a temporary body (three-dimensional model for visually confirming the range specification range) for specifying the range in which the stress value analysis result is to be acquired in a three-dimensional range on the three-dimensional model. This is an input unit for designating a reference point (coordinate value) to be used.

  Here, it is assumed that the reference point of the temporary body = the center coordinates (center point) of the temporary body. The reference point can also be specified by accepting a mouse click operation on the three-dimensional model displayed on the display unit 603, for example.

  When the CPU 201 of the client PC 100 receives a mouse click operation on the three-dimensional model, the CPU 201 of the client PC 100 acquires the coordinates of the point on the three-dimensional model that has received the mouse click, and inputs the coordinates to the reference point input reception unit 701. The coordinates at which mouse clicks are accepted are determined as reference points.

  An input unit 702 displays and inputs the size (size) of the temporary body. For example, if the value input to 702 is 10, a temporary body that is a 10 mm square cube centered on the coordinates of 701 is generated.

  Note that this temporary body is a three-dimensional designation of a range for obtaining nodes (points corresponding to stress values) to be described later. Here, the shape of the temporary body is assumed to be a cube. Is not necessarily limited to a cube. For example, a cylindrical shape or a spherical shape may be used.

  Reference numeral 703 denotes a button for accepting deletion of the created temporary body. A display unit / input unit 704 displays and inputs the type of stress to be output. For example, the maximum main stress and the minimum main stress are input.

  Reference numeral 705 denotes a reception unit that accepts selection of a result output condition (a predetermined condition for determining and extracting a result to be output on a result display screen that displays an analysis result, which will be described later). When 705a is selected, a result higher than the stress value in the specified range, when 705b is selected, a result that is greater than or equal to the input stress value, and when 705c is selected, the result is less than or equal to the input stress value. Output the result. It is assumed that the number of the stress values that are output above and below how many results are output according to the numerical values input to the input units 705a to 705c. Information on the predetermined condition whose designation is received by the result output condition designation receiving unit is stored in the external memory of the client PC 100.

  Reference numeral 706 denotes a button for receiving an instruction to display a range-designated analysis result output history executed in the past from the analysis result history 1300 (described later in FIG. 13) of the displayed three-dimensional model (open CAD data). Reference numeral 707 denotes a button for accepting an analysis result output instruction within a predetermined range. Reference numeral 708 denotes a button for accepting the end of the analysis result output program. The above is the description of FIG.

  The CPU 201 of the client PC 100 (the analysis result output program) accepts an instruction from the user on the information input screen 700 of the display screen 610 (FIG. 6) (step S407), and whether the accepted instruction is an instruction to create a temporary body. Determination is made (step S408). That is, it is determined whether the input of the reference point in 701 and the input of the size in 702 are completed on the information input screen 700 (whether the specification of the acquisition range (predetermined range) of the analysis result of the stress value is received / range specification receiving means).

  If the CPU 201 of the client PC 100 (the analysis result output program) determines that the received instruction is a temporary body creation instruction (YES in step S408), the input / designation is accepted in 701 and 702 of the information input screen 700 Based on the reference point and size information (predetermined range information), the CAD application is requested to create a temporary body, and the CAD application creates the temporary body (temporary body 801 in FIG. 8) (step S409 / temporary). Body generating means), and displayed on the display unit 603 (FIG. 8). FIG. 8 is a diagram showing an example of the configuration of a display screen on which temporary bodies are arranged in the embodiment of the present invention.

  Note that the CPU 201 of the client PC 100 (the analysis result output program) applies a predetermined transmittance to the temporary body so that the user can visually recognize a predetermined coordinate position (1001 in FIG. 10) in the temporary body. To the CAD application. The CAD application generates a temporary body having a predetermined transmittance according to the predetermined transmittance value included in the request and displays it on the display screen.

  Thereafter, the process returns to step S407. It is assumed that the temporary body creation request includes information on the reference point and the size that have been input / designated in 701 and 702.

  If the CPU 201 of the client PC 100 (the analysis result output program) determines that the received instruction is not a temporary body creation instruction (NO in step S408), it determines whether the received instruction is an analysis result history display instruction ( Step S410). That is, it is determined whether or not the “history result display” button 706 on the information input screen 700 has been pressed.

  If the CPU 201 of the client PC 100 (the analysis result output program) determines that the received instruction is not an analysis result history display instruction (NO in step S410), the received instruction is within a predetermined range for accepting the designation (temporary). It is determined whether or not it is an instruction to display a stress value within the range indicated by the body (step S413). That is, it is determined whether an instruction to press the “execute” button 707 on the information input screen 700 is received.

  When it is determined that the received instruction is not an instruction to display a stress value within a predetermined range in which the designation is accepted (NO in step S413), that is, for example, an instruction to press the “end” button 708 is output. The program ends and the process ends. In the case of a numerical value input instruction to the various input units, numerical values are input to the various input units, and the process returns to step S407.

  When it is determined that the received instruction is an instruction to display a stress value within a predetermined range in which the designation is accepted (YES in step S413), the CPU 201 of the client PC 100 (the analysis result output program) has created a temporary body. Determination is made (step S414). For example, it is determined whether or not numerical values are input in the information input screen 700 701 and 702 (= a state where a temporary body is created and displayed on the display unit 603).

  If a temporary body has not been created (NO in step S414), the process returns to step S407. If the temporary body has been created (YES in step S414), the CPU 201 of the client PC 100 (the analysis result output program and the CAD application) executes the analysis result display process (step S415).

  Here, with reference to FIG. 5, the details of the analysis result display processing in the embodiment of the present invention will be described.

  The CPU 201 of the client PC 100 acquires the feature type of the feature having the reference point specified (selected) in step S407 in FIG. 4 using the feature type acquisition function of the CAD application. Specifically, the analysis result output program outputs a request for specifying the feature type of the feature at the position of the reference point including information on the coordinates of the reference point to the CAD application, and the CAD application that has received the request outputs the feature. Specify the type and answer the analysis result output program.

  The CPU 201 of the client PC 100 (the analysis result output program) determines whether the identified feature type is a mirror feature (step S502). That is, for example, it is specified whether the three-dimensional model at the position / range of the reference point is a left-right symmetric (or vertical symmetric or front-back symmetric) three-dimensional model.

  If the CPU 201 of the client PC 100 (the analysis result output program) determines that the identified feature type is a mirror feature (YES in step S502), the process proceeds to step S505, and a symmetric element (symmetric point) is obtained from the acquired mirror feature. / Symmetric position), for example, a plane element is acquired (step S505). Then, the CAD application is requested to mirror the reference point of the temporary body for the element acquired in step S505 (duplicate in the target part), and the CAD application performs the temporary body (mirror) as performed in step S408 of FIG. Temporary body 901) is created (range addition means).

  For example, as shown in the display unit 603 of the display screen 900 of FIG. 9, a mirror temporary body 901 that is a mirror for the generated temporary body 801 is generated, arranged, and displayed. Then, the process proceeds to step S507. FIG. 9 is a diagram showing an example of a configuration of a display screen on which a mirror temporary body is arranged in the embodiment of the present invention.

  When the CPU 201 of the client PC 100 (the analysis result output program) determines that the identified feature type is not a mirror feature (YES in step S502), the feature type of the feature having the reference point is acquired respectively. (Step S503 / feature type specification request is output to the CAD application, and the CAD application specifies the feature type of the parent / child feature and responds to the analysis result output program).

  The CPU 201 of the client PC 100 (the analysis result output program) determines whether the mirror feature is included in the parent / child feature (step S504). If the mirror feature is included, the process proceeds to step S505. If no feature is included, the process proceeds to step S507.

The CPU 201 of the client PC 100 (the analysis result output program) acquires the analysis result information (analysis information list 1200 / FIG. 12) of all nodes of the three-dimensional model being displayed from the CAD application (step S507).
Here, with reference to FIG. 12, an example of the structure of the analysis information list in the embodiment of the present invention will be described.

  It is assumed that the analysis information list 1200 (= information of analysis results of all nodes of the three-dimensional model being displayed) is generated in advance by the analysis function of the CAD application and stored in the external memory of the client PC 100.

  The CAD ID 1201 is identification information of CAD data associated with information of the analysis result. That is, it shows which CAD data (three-dimensional model) is the analysis result of the information in the analysis information list 1200.

  The node number 1202 is node identification information. An X coordinate 1203, a Y coordinate 1204, and a Z coordinate 1205 indicate the position (coordinate) of each node. The minimum principal stress 1206 and the maximum principal stress 1207 indicate a minimum stress value and a maximum stress value at each node, respectively.

  The analysis information list for result display 1210 is nodes in the temporary body acquired by the analysis result output program from the analysis information list 1200 (= information of analysis results of all nodes of the three-dimensional model being displayed). FIG. 8 is a list of information of analysis results concerning the stress value nodes satisfying the conditions specified in 705 of FIG. That is, it is a table that stores the values of the nodes and stress values displayed on the display unit 603 and the result display screen 1100 (FIG. 11) described later. Since the explanations of 1211-1217 are the same as 1201-1207 of the analysis information list 1200, the explanation is omitted here. The above is the description of FIG.

  Returning to the description of FIG. The CPU 201 of the client PC 100 (the analysis result output program) specifies the number of temporary bodies and the coordinate values in the temporary body (within a predetermined range) for the CAD application using the temporary body acquisition function of the CAD application. The CAD application specifies the number of temporary bodies and the coordinate values within the temporary body (within a predetermined range), and replies to the analysis result output program. That is, the number of temporary bodies and the coordinate values within the temporary body (within a predetermined range) are acquired (step S508).

  The CPU 201 of the client PC 100 (the analysis result output program) repeats the processing from step S510 to step S513 for the number of temporary bodies and the number of nodes of the temporary body (step S509 / step S510).

  The CPU 201 of the client PC 100 (the analysis result output program) acquires one node of analysis information from the analysis information list 1200, and uses the distance measurement function of the CAD application to acquire one node of the analysis information. The CAD application is requested to measure the distance between the coordinates and the coordinates of the temporary body, and the CAD application performs the measurement and replies to the analysis result output program. The analysis result output program reads the values of the measurement results (node coordinates and temporary coordinates). The value of the distance between the coordinates of the body) is acquired from the CAD application (step S511).

  The CPU 201 of the client PC 100 (the analysis result output program) determines whether the acquired distance = 0. That is, it is determined whether the node is included in the temporary body range (predetermined range) (step S512). When the distance = 0, it is determined that the node is within the range of the temporary body. When the distance is not 0, it is determined that the node is outside the range of the temporary body.

  If the node is outside the temporary body range (NO in step S512), the process returns to step S510. If the node is within the range of the temporary body (YES in step S512), a result display analysis information list 1210 (FIG. 12) is generated, and the analysis information corresponding to the acquired node is displayed in the result display analysis information list 1210. Each piece of information in the list 1200 is inserted and stored in the memory of the client PC 100 (step S513). When the result display analysis information list 1210 corresponding to the three-dimensional model has already been generated, each result of the analysis information list 1200 corresponding to the nodes in the temporary body range is added to the result display analysis information list 1210. Information shall be added and stored.

  The CPU 201 of the client PC 100 (the analysis result output program) acquires the result display analysis information list 1210 in step S514, and designates a predetermined condition (designated by 705 of the information input screen 700) from the result display analysis information list 1210. And the node information satisfying the condition stored in the external memory) is acquired (step S514 / position specifying means).

  Specifically, for example, when acquiring stress values up to the top three, the information of the acquired analysis information list 1200 is sorted in descending order of the stress values, and corresponding node information is acquired. For example, when acquiring stress values greater than or less than the specified stress value, the node information in the analysis information list 1200 is checked one by one, and the target node information is acquired.

  The CPU 201 of the client PC 100 (the analysis result output program) acquires the node number, the node coordinates, the maximum principal stress, the coordinates of the reference point of the temporary body including the node acquired in step S514, and the size of the display unit. An analysis result history 1300 corresponding to the CAD data of the three-dimensional model currently displayed in 603 is generated and stored in the external memory of the client PC 100 in association with the three-dimensional model (step S515 / history storage means). The analysis result history 1300 is information on a history of outputting (displaying) an analysis result within a predetermined range by an analysis result output program stored for each CAD data.

  FIG. 13 is a diagram showing an example of the configuration of the analysis result history 1300 in the embodiment of the present invention.

  The CAD ID 1301 is identification information of CAD data (CAD data of a three-dimensional model displaying an analysis result displayed on the display unit 603) that associates the analysis result history information.

  The history name 1302 is identification information for identifying information of the analysis result history. The history name 1302 is generated by the analysis result output program by assigning a randomly generated unique identifier to the condition name (“upper”, “above” or “below”) specified in 705 of FIG. Is done.

  The node number 1303 is node identification information. A node coordinate (X) 1304, a node coordinate (Y) 1305, and a node coordinate (Z) 1306 indicate the position (coordinate) of each node. The stress value 1307 indicates the stress value corresponding to each node at the time of analysis result display executed in the past (step S415 in FIG. 4).

  Reference coordinates (X) 1308, reference coordinates (Y) 1309, reference coordinates (Z) 1310, and size 1311 are reference points (centers) of the temporary body at the time of analysis result display executed in the past (step S415 in FIG. 4). Point) coordinates and size information (= predetermined range information). The above is the description of FIG.

  Returning to the description of FIG. The CPU 201 of the client PC 100 (the analysis result output program), for example, obtains the stress values and nodes from the top to the third among the stress values within a predetermined range, for example, the node coordinates (X The coordinates 1203, the coordinates indicated by the Y coordinate 1204, and the Z coordinate 1205) and the value of the maximum principal stress 1207 corresponding to the node are displayed on the display unit 603, and the CAD application accepts the request. Then, the node coordinates of the node satisfying the predetermined condition and the value of the maximum principal stress 1207 corresponding to the node are displayed on the display unit 603 (step S515 / for example, FIG. 10). Further, the analysis result output program displays a result display screen 1100 (FIG. 10) including the node coordinates of the node satisfying the predetermined condition and the stress value corresponding to the node.

  FIG. 10 is a diagram illustrating an example of a configuration of a display screen that displays an analysis result in the embodiment of the present invention.

  A node 1001 indicates the coordinates of a node of a stress value (stress value 1002) that satisfies a predetermined condition that has been input in 705 of the information input screen 700 in the temporary body. For example, in FIG. 10, the stress values and nodes up to the top three stress values in the temporary body are displayed.

  10 shows an example of a screen when there is one temporary body. However, when there are a plurality of temporary bodies, for each temporary body, as shown in FIG. 10, a predetermined condition in the temporary body is set. It is assumed that the stress values / nodes that match are displayed.

  The result display screen 1100 is a screen that displays the information on the nodes 1001 and the stress values 1002 shown on the display unit 603 in FIG. 10 as numerical information as output result information. Details of the result display screen 1100 will be described later with reference to FIG.

  Here, an example of the configuration of the analysis result display screen in the embodiment of the present invention will be described with reference to FIG.

  In the result display screen 1100, the contents indicating the information of the analysis result being displayed on the display unit 603 are displayed on each display unit. When the analysis result history 1300 exists in the CAD data, the history name selection receiving unit 1101 displays the history name in a pull-down manner.

  The CPU 201 of the client PC 100 (the analysis result output program) receives the selection of the history name displayed in the pull-down, reads out the information of the analysis result history 1300 having the history name 1302 that has received the selection as a CAD application. And a display request to the display unit 603 is made. The CAD application accepts the request, and in accordance with the information of the analysis result history 1300 included in the request, the history of past analysis results (nodes, stress values, temporary bodies) in the same manner as the display shown in the display unit 603 of FIG. Is displayed.

  The temporary body information 1102 and the result 1103 are the coordinates and size of the temporary body in the analysis result (corresponding to the history name being selected (displayed) in the history name selection receiving unit) being displayed on the display unit 603, FIG. No. 705 is a display unit that displays information on nodes and stress values that satisfy the conditions for which designation is accepted.

  A “Cancel” button 1104 is a button for closing the result display screen 1100, and when pressed, the result display screen 1100 is closed. The above is the description of FIG.

  It should be noted that the display request for the node coordinates of the node satisfying the predetermined condition and the stress value corresponding to the node that is output from the analysis result output program to the CAD application includes at least identification information of the node satisfying the predetermined condition (for example, , Node number).

  Here, the node coordinates of the node satisfying the predetermined condition and the display request for the stress value corresponding to the node include identification information (for example, the node number) of the node satisfying the predetermined condition. The analysis result output program may directly transmit the node coordinates of the node satisfying the predetermined condition and the stress value information corresponding to the node to the CAD application. The above is the description of FIG.

  Returning to the description of FIG. The CPU 201 of the client PC 100 (the analysis result output program) determines that the instruction received in step S407 is a history display instruction (YES in step S410), that is, an instruction to press the “history result display” button 706. If accepted, the information of the analysis result history 1300 having the identification information of the CAD data being displayed in the CAD ID 1301 is obtained from the external memory from the external memory (step S411), the latest history is specified, and the latest history is obtained. The result display screen 1100 displaying the analysis result is displayed on the display screen (step S412 / history display control means).

  Then, the temporary body information 1102 and the information of the result 1103 indicated by the result display screen are transmitted to the CAD application, and the CAD application displays the temporary body information 1102 and the information indicated by the result 1103 on the display unit 603. For example, the display screen is changed to the same state as the display screen shown in FIG.

  Note that although one history information is displayed on the display unit 603 here, for example, a plurality of history information may be displayed on the display unit 603 at the same time.

  When performing multiple simultaneous display, the CPU 201 of the client PC 100 (the analysis result output program) acquires the three latest histories from the analysis result history 1300 in step S411 of FIG. 4, and in step S412, the result display screen Instead of 1100, a result display screen 1400 (FIG. 14) is displayed.

  Then, from the analysis result history 1300, the coordinates and sizes of the temporary bodies and the coordinates / stress values of the nodes that match the predetermined conditions of the plurality of histories selected by the history name selection receiving unit 1401 of the result display screen 1400 are acquired. , Output to the CAD application and request to display on the display unit 603. The request includes the coordinates and size of the temporary body of each history, the coordinates and stress values of the nodes that meet the predetermined conditions, and information on the color of each temporary body (information for color designation). ing.

  The CAD application accepts the request, and displays a plurality of history information on the display unit 603 in accordance with the content of the request. Note that the color included in the request is applied as the color of the temporary body of each history in order to distinguish each history. It is assumed that information on what color is specified for each history is stored in advance in the external memory of the client PC 100.

  As described above, according to the present invention, there is provided a mechanism that allows a user to easily confirm a stress value that satisfies a predetermined condition and a position corresponding to the stress value at a predetermined location on the three-dimensional model. be able to.

  The present invention can be implemented as a system, apparatus, method, program, storage medium, or the like, and can be applied to a system including a plurality of devices. You may apply to the apparatus which consists of one apparatus.

  For example, CAD data may be stored in the external memory of the client PC 100, and the CPU 201 of the client PC 100 may read out the CAD data stored in the external memory of its own terminal and execute the processes in FIGS. .

  Note that the present invention includes a software program that implements the functions of the above-described embodiments directly or remotely from a system or apparatus. The present invention also includes a case where the system or the computer of the apparatus is achieved by reading and executing the supplied program code.

  Accordingly, since the functions of the present invention are implemented by computer, the program code installed in the computer also implements the present invention. In other words, the present invention includes a computer program itself for realizing the functional processing of the present invention.

  In that case, as long as it has the function of a program, it may be in the form of object code, a program executed by an interpreter, script data supplied to the OS, or the like.

  Examples of the recording medium for supplying the program include a flexible disk, hard disk, optical disk, magneto-optical disk, MO, CD-ROM, CD-R, and CD-RW. In addition, there are magnetic tape, nonvolatile memory card, ROM, DVD (DVD-ROM, DVD-R), and the like.

  As another program supply method, a browser on a client computer is used to connect to an Internet home page. The computer program itself of the present invention or a compressed file including an automatic installation function can be downloaded from the homepage by downloading it to a recording medium such as a hard disk.

  It can also be realized by dividing the program code constituting the program of the present invention into a plurality of files and downloading each file from a different homepage. That is, a WWW server that allows a plurality of users to download a program file for realizing the functional processing of the present invention on a computer is also included in the present invention.

  In addition, the program of the present invention is encrypted, stored in a storage medium such as a CD-ROM, distributed to users, and key information for decryption is downloaded from a homepage via the Internet to users who have cleared predetermined conditions. Let It is also possible to execute the encrypted program by using the downloaded key information and install the program on a computer.

  Further, the functions of the above-described embodiments are realized by the computer executing the read program. In addition, based on the instructions of the program, an OS or the like running on the computer performs part or all of the actual processing, and the functions of the above-described embodiments can also be realized by the processing.

  Further, the program read from the recording medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. Thereafter, the CPU of the function expansion board or function expansion unit performs part or all of the actual processing based on the instructions of the program, and the functions of the above-described embodiments are realized by the processing.

  The above-described embodiments are merely examples of implementation in carrying out the present invention, and the technical scope of the present invention should not be construed as being limited thereto. That is, the present invention can be implemented in various forms without departing from the technical idea or the main features thereof.

100 client PC
200 server 101 LAN

Claims (10)

An information processing apparatus comprising: a storage unit that stores a three-dimensional model indicating a three-dimensional shape of a design; and a calculation unit that calculates a value of stress applied to each part of the three-dimensional model,
Range designation accepting means for accepting designation of a predetermined range on the three-dimensional model;
A position for specifying a position on the three-dimensional model, which is a stress value calculated by the calculation means and indicates a stress value satisfying a predetermined condition among stress values within the range specified by the range specification receiving means. Specific means,
Information on a predetermined range specified by the range specification accepting unit and information on a position indicating a stress value satisfying a predetermined condition within the specified range specified by the position specifying unit are displayed on the three-dimensional model. Display control means for displaying together,
An information processing apparatus comprising: A temporary body generating means for generating a temporary body, which is a three-dimensional model showing the predetermined range;
The display control means is a temporary body that is generated by the temporary body generating means and indicates the predetermined range, and a position on the three-dimensional model in the temporary body that indicates a stress value that satisfies a predetermined condition. The information processing apparatus according to claim 1, wherein the information is displayed on the three-dimensional model.   3. The display control unit according to claim 2, wherein the display control means performs control so that the position indicating the stress value satisfying the predetermined condition is visible to a user and generated through the temporary body. Information processing device.   The predetermined condition is a condition for specifying a predetermined number of higher stress values within the predetermined range, or a position for indicating a stress value greater than or equal to a predetermined value within the predetermined range. The information processing apparatus according to any one of claims 1 to 3, wherein the information processing apparatus is a condition for specifying a position where a stress value falls below a predetermined value within the predetermined range. A determination unit that determines whether the three-dimensional model that has received the range specification by the range specification reception unit is a symmetric model;
When the determination unit determines that the model is the symmetric model, information indicating a range in which the range designation is accepted by the range designation acceptance unit is provided at a symmetrical position of the position in which the range designation is accepted by the range designation acceptance unit. In addition, range addition means for specifying the range,
With
The position specifying means is a stress value calculated by the calculation means, and is a predetermined value among stress values within the range specified by the range specification receiving means and within the range added by the range addition means. A position on the three-dimensional model indicating a stress value satisfying the condition is specified;
The display control means satisfies a predetermined condition in each range specified by the position specifying means and the information of the predetermined range specified by the range specification receiving means and the range information added by the range adding means. The information processing apparatus according to claim 1, wherein information on a position indicating a stress value is displayed on the three-dimensional model. Information on a predetermined range designated by the range designation accepting means displayed by the display control means and position information indicating a stress value satisfying a prescribed condition within the designated range specified by the position specifying means. And history storage means for storing as a history,
History display control means for reading out the history stored in the history storage means and controlling it to display on the display screen;
The information processing apparatus according to claim 1, further comprising:   7. The information according to claim 6, wherein, when displaying a plurality of histories on a display screen, the history display control means identifies and displays information in a predetermined range indicated by the histories so as to distinguish them from other histories. Processing equipment. A control method for an information processing apparatus comprising storage means for storing a three-dimensional model indicating a three-dimensional shape of a design, and calculation means for calculating a stress value applied to each part of the three-dimensional model,
A range designation receiving step for accepting designation of a predetermined range on the three-dimensional model;
A position for specifying a position on the three-dimensional model, which is a stress value calculated by the calculation means and indicates a stress value satisfying a predetermined condition among the stress values within the range specified in the range specification receiving step Specific process,
On the three-dimensional model, information on a predetermined range specified in the range specification receiving step and information on a position indicating a stress value satisfying a predetermined condition in the specified range specified in the position specifying step. Display control process to display together,
A method for controlling an information processing apparatus, comprising: A program that can be executed by an information processing apparatus that includes a storage unit that stores a three-dimensional model indicating a three-dimensional shape of a design and a calculation unit that calculates a value of stress applied to each part of the three-dimensional model,
The information processing apparatus;
Range designation accepting means for accepting designation of a predetermined range on the three-dimensional model;
A position for specifying a position on the three-dimensional model, which is a stress value calculated by the calculation means and indicates a stress value satisfying a predetermined condition among stress values within the range specified by the range specification receiving means. Specific means,
Information on a predetermined range specified by the range specification accepting unit and information on a position indicating a stress value satisfying a predetermined condition within the specified range specified by the position specifying unit are displayed on the three-dimensional model. A program for an information processing apparatus, which is caused to function as display control means for displaying together. An information processing system including a server including a storage unit that stores a three-dimensional model indicating a three-dimensional shape of a design, and an information processing apparatus including a calculation unit that calculates a value of stress applied to each part of the three-dimensional model. ,
Range designation accepting means for accepting designation of a predetermined range on the three-dimensional model;
A position for specifying a position on the three-dimensional model, which is a stress value calculated by the calculation means and indicates a stress value satisfying a predetermined condition among stress values within the range specified by the range specification receiving means. Specific means,
Information on a predetermined range specified by the range specification accepting unit and information on a position indicating a stress value satisfying a predetermined condition within the specified range specified by the position specifying unit are displayed on the three-dimensional model. Display control means for displaying together,
An information processing system comprising:

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