JP2009295048A - Exploded view creation method, program and exploded view creation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically obtain a proper three-dimensional exploded view without individually inputting any moving direction, moving amount, and moving sequence to a graphic included in an assembly diagram created by a CAD or the like. <P>SOLUTION: In a step S11, a three-dimensional graphic being the object of movement included in a three-dimensional assembly drawing is obtained. In a step S12, a preset moving direction is obtained in the obtained three-dimensional graphic. In a step S15, the moving sequence of the obtained three-dimensional diagram is determined on the basis of a prescribed reference. In a step S16, prescribed moving quantity to the obtained three-dimensional graphic is acquired. In a step S17, the acquired graphic is moved on the basis of the moving direction, the moving sequence and the moving quantity, so that a three-dimensional exploded view is created. Thus, it is possible to automatically obtain a proper three-dimensional exploded view without making it necessary to individually input the moving direction, the moving quantity and the moving sequence to the graphic included in the assembly drawing. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an exploded view creation method, a program, and an exploded view creation apparatus. More specifically, the present invention relates to a technique for creating an exploded view composed of figures related to parts and the like created on a computer by CAD (computer-aided design), CG (computer graphic), or the like.

  An exploded view (hereinafter, exploded view) is a diagram in which individual figures are separated from a state where figures related to parts or the like are combined (assembled drawing), and the assembled drawing is a figure in which individual figures are combined. . Such an exploded view or assembly drawing is used for a service manual, a parts catalog, etc. showing an assembly procedure in a manufacturing process, a maintenance check and a repair work procedure, and the like.

  Conventionally, exploded views are created based on graphic data created on a computer by handwriting based on a photograph of a product or the like by CAD or the like. As a means for creating an exploded view by CAD or the like, Patent Document 1 discloses that a person individually designates a figure to be assembled (disassembled), and a person inputs a moving direction and a moving amount for each designated figure. It is described that a diagram is created. According to this means, it is possible to reduce the time for creating an exploded view as compared with the case where a person creates by hand.

  Patent Document 2 describes that an exploded view is created from assembly order information, assembly direction information, and graphic shape information of each graphic. According to this means, it is not necessary to individually define information about the figure to be assembled (disassembled).

  Further, Patent Document 3 describes that an assembly order is automatically specified by using assembly hierarchy information, and according to this means, a person inputs an order of disassembly for individual parts. Save time and effort.

  Patent Document 4 describes that the decomposition direction is automatically calculated from the information on the face orientation and the axis alignment of the figure. According to this means, it is possible to save the person from inputting the disassembly direction for the individual parts.

Japanese Patent No. 3143278 Japanese Patent No. 3527771 JP 2003-077624 A JP 2003-006245 A

  Conventionally, when creating an exploded view by hand, a person with specialized knowledge must judge the layout position of the figure to be decomposed and create it one by one by hand. Then, the number of man-hours required for production increased and the cost increased.

  With respect to such a problem, according to the technique described in Patent Document 1 described above, it is possible to reduce labor by creating an exploded view on a computer by CAD or the like as compared with the case of creating an exploded view by handwriting. it can. However, even with this technology, a person with specialized knowledge must examine the location of the figure to be disassembled on the computer and move the figure one by one. However, there is a problem that the cost is increased.

  Further, according to the means described in Patent Document 2 described above, since the disassembly order and the disassembly direction are calculated by calculating backward from the assembly order information and the assembly direction information input at the time of assembling the figures, In addition, it is possible to reduce the trouble of inputting the order / direction. However, it is unrealistic to input the assembly order and the assembly direction individually for products having a large number of parts such as tens of thousands to hundreds of thousands. In addition, when there is no information on the assembly order and the assembly direction, there is a problem in that the disassembly order / disassembly direction cannot be calculated.

  Further, according to the means described in Patent Document 3 described above, it is possible to improve the input effort by calculating the component disassembly order from the assembly hierarchy. However, the assembly configuration is often different at the time of design and at the time of manufacturing review, and the assembly configuration at the time of design is not a configuration that considers disassembly, so if an exploded view is automatically created, it is not intended by the operator. There was a case. Furthermore, the problem of individually inputting the disassembly direction / movement amount has not been solved.

Further, according to the means described in the above-mentioned Patent Document 4, it is determined whether or not the parts are aligned and aligned when calculating the disassembly direction. If so, the normal vector direction of the surface is set as the decomposition direction. According to this means, it is possible to save the person from inputting the disassembly direction for the individual parts. However, there is a problem in that the disassembly direction cannot be calculated when there are a plurality of relationships between axis alignment and surface alignment between components.
In addition, there is a problem in that it is necessary to have phase information in order to calculate information on axis alignment and surface alignment, and it cannot be applied to data without phase information.
In addition, when moving parts, the parts are arranged at positions that do not interfere with each other in three dimensions, but when viewed from an arbitrary viewpoint direction when the parts are arranged at positions that do not interfere with each other in three dimensions, The phenomenon of overlapping may occur. That is, when the components overlap each other, when the components are viewed from the viewpoint direction, the components arranged on the far side may be hidden from the viewpoint direction and cannot be viewed from the viewpoint direction. Therefore, there is a problem that an exploded view desired by the operator may not be obtained.

  The present invention solves such a problem, and it is not necessary to individually input a moving direction, a moving amount, and a moving order with respect to a graphic included in an assembly drawing created by CAD or the like. An object of the present invention is to provide a graphic layout method that can automatically obtain a three-dimensional exploded view.

The exploded view creation method of the present invention creates a three-dimensional exploded view in which a plurality of three-dimensional figures are moved and arranged based on a three-dimensional assembly drawing formed by combining a plurality of three-dimensional figures in an information processing apparatus. An exploded view creation method, a figure acquisition step for acquiring a three-dimensional figure to be moved included in the three-dimensional assembly drawing, and a movement direction predetermined for the three-dimensional figure acquired in the figure acquisition step. The figure movement direction acquisition step to be acquired, the figure movement order acquisition step for determining the movement order of the three-dimensional figure acquired in the figure acquisition step based on a predetermined standard, and the three-dimensional figure acquired in the figure acquisition step A figure movement amount acquisition step for acquiring a predetermined movement amount, and the three-dimensional acquired in the figure acquisition step based on the movement direction, the movement order, and the movement amount. And having a graphical movement placing by moving the shape.
Further, the program according to the present invention provides an exploded view creation method for creating a three-dimensional exploded view in which a plurality of three-dimensional figures are moved and arranged based on a three-dimensional assembly drawing formed by combining a plurality of three-dimensional figures. A program for causing the computer to execute a figure acquisition step for acquiring a three-dimensional figure to be included in the three-dimensional assembly drawing, and a movement predetermined for the three-dimensional figure acquired in the figure acquisition step A figure moving direction obtaining step for obtaining a direction, a figure moving order obtaining step for determining a moving order of the three-dimensional figure obtained in the figure obtaining step based on a predetermined standard, and the three-dimensional obtained in the figure obtaining step. A figure movement amount acquisition step for acquiring a predetermined movement amount with respect to the figure, and the figure acquisition step based on the movement direction, the movement order, and the movement amount. Is a program for executing the graphic moving placing by moving the three-dimensional figure obtained in up to the computer.
Further, the exploded view creation apparatus of the present invention creates an exploded view for creating a three-dimensional exploded view in which a plurality of three-dimensional figures are moved and arranged based on a three-dimensional assembly drawing formed by combining a plurality of three-dimensional figures. An apparatus for obtaining a three-dimensional figure to be disassembled included in the three-dimensional assembly drawing, and a figure for obtaining a moving direction predetermined for the three-dimensional figure obtained by the figure obtaining means Movement direction acquisition means, figure movement order acquisition means for determining the movement order of the three-dimensional figure acquired by the figure acquisition means based on a predetermined reference, and predetermined movement with respect to the three-dimensional figure acquired by the figure acquisition means A figure movement amount acquisition means for acquiring an amount; and a figure movement means for moving and arranging the three-dimensional figure acquired by the figure acquisition means based on the movement direction, the movement order, and the movement amount. The features.

  According to the present invention, it is possible to automatically obtain an appropriate three-dimensional exploded view without individually inputting a moving direction, a moving amount, and a moving order with respect to a graphic included in an assembly drawing created by CAD or the like.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the accompanying drawings.
(First embodiment)
FIG. 1 is a block diagram showing a configuration of an exploded view creation apparatus according to the present embodiment. The exploded view creation apparatus according to the present invention is applied and used in an information processing apparatus such as a personal computer.

  In FIG. 1, a control line (bus) 1 includes a data line and an address line, and connects each part of the exploded view creation apparatus. A central processing unit (CPU) 2 and a memory (RAM / ROM) 3 are connected to the bus 1. Further, an input device 5 including a keyboard, a tablet, a mouse and the like is connected to the bus 1 via an input interface 4, and an output device 7 is connected via an output interface 6. The bus 1 is also connected to an external storage device 9 via an external storage device interface 8 and a moving direction storage database 11 for each graphic type via an external database interface 10.

  The output device 7 includes a display output device 7a such as a CRT or LCD, and a print output device (printer block) 7b such as a printer or plotter. The external storage device 9 has a storage medium such as a magnetic disk such as a hard disk (HD), a flexible disk (FD), a CD-ROM, a mini disk (MD), a flash memory (FM), or a magneto-optical disk (MO).

  The CPU 2 controls the entire exploded view creation apparatus. The memory 3 stores various programs and the like, and further has a program processing area. Specifically, the memory 3 stores a program necessary for processing in the program storage area 3a. Further, as processing areas, there are a graphic geometric information storage area 3b, a graphic attribute information storage area 3c, a movement center graphic information storage area 3d, and a movement range information storage area 3e.

  When using the program stored in the memory 3, the CPU 2 uses the memory 3 as a temporary storage device, and performs various processes and controls, such as graphic information acquisition processing, connection processing with an external database, various arithmetic processing, graphic display. Processing, figure movement processing, etc. are performed. The display output device 7a includes a plurality of bitmap planes and the like as necessary, and displays graphics and the like according to instructions from the CPU 2. The display output device 7a displays a three-dimensional assembly drawing (hereinafter simply referred to as an assembly drawing) or a three-dimensional exploded view (hereinafter also simply referred to as an exploded view) or a product including a plurality of components. Three-dimensional figures (hereinafter also simply referred to as figures) related to the components to be used. These are created by CAD, CG or the like on the exploded view creation apparatus or an external information processing apparatus.

  The programs stored in the program storage area 3a in the memory 3 include a program for creating an exploded view from an assembly drawing. The program receives an instruction of a figure to be processed (moving target) included in the assembly drawing via the input device 5 and the input interface 4 and performs processing for creating an exploded view. Then, the program that has received the instruction of the target graphic performs processing on the target graphic in accordance with a flowchart shown in FIG. 2 to be described later, and performs processing of displaying the exploded view created by this processing on the display output device 7a.

  The figure geometric information storage area 3b in the memory 3 stores figure geometric data such as vertex coordinates, center coordinates, and center of gravity of the figure. The figure attribute information storage area 3c stores attribute information such as figure name, figure material, figure creator, figure creation date and time, figure type, and the like. The movement center graphic information storage area 3d stores coordinate values and graphic information designated by the operator as the movement center on the output device 7. The movement range information storage area 3e stores geometric information such as coordinate values of the movement range designated by the operator on the output device 7.

  The external storage device 9 stores information stored in the program storage area 3a, the graphic geometric information storage area 3b, the graphic attribute information storage area 3c, the movement center graphic information storage area 3d, and the movement range information storage area 3e. Can be recorded via. Further, data recorded in the movement direction storage database 11 for each graphic type can also be recorded via the external database interface 10.

  The moving direction storage database 11 (hereinafter referred to as database) stores the moving direction for each graphic type in advance. The exploded view creation apparatus can determine the moving direction of each figure when creating an exploded view based on the information stored in the database 11.

  Next, an exploded view creation process which is the main focus of the present invention by the exploded view creation apparatus according to the present embodiment will be described. FIG. 2 is a flowchart for explaining the main flow of the exploded view creation processing by the exploded view creation apparatus according to the present embodiment. FIGS. 3 to 11 are a flowchart for explaining the details of the processing in FIG. It is a figure for doing. The exploded view creation process described below is performed by the CPU 2 executing a program stored in the program storage area 3a.

<Processing Object Graphic Information Acquisition Processing; Step S11>
First, in step S <b> 11, the CPU 2 uses the input device 5 to extract graphic information of one or more graphics (of the graphics included in the assembly drawing) to be processed as instructed by the operator. In addition, the process which concerns on step S11 respond | corresponds to one process example in the figure acquisition step said by this invention.

<Moving direction acquisition process; Step S12>
Next, in step S12, the CPU 2 acquires a predetermined moving direction for the graphic information extracted in step S11. FIG. 3 is a flowchart for explaining the details of the movement direction acquisition processing in step S12. Hereinafter, details of the processing will be described with reference to FIG.

In step S121, the type of each figure is determined from the figure information acquired in step S11 based on the figure name and the figure material.
Next, in step S122, movement direction information corresponding to the type is acquired from the database 11 in which the movement direction is stored for each graphic type determined in step S121.
In step S123, the database 11 is searched for a corresponding figure type.
In step S124, it is determined whether there is a matching figure type as a result of the search in step S123.
Next, in step S125, movement direction information corresponding to the type matched in the search in step S124 is acquired.
In step S126, the movement direction information acquired in step S125 is stored in the memory 3.
Note that the case where there is no matching figure type in step S124 (step S127) will be described in a third embodiment described later. Moreover, the process in step S12 demonstrated here respond | corresponds to the example of 1 process in the figure moving direction acquisition step said by this invention.

  Here, FIG. 4 is a diagram showing an example of table information in the database 11 in which graphic types and movement direction information for each graphic type are stored. In the figure, the figure type column 401 describes the name and material (not shown in this example) of the figure, and the movement direction column 402 describes the definition of the movement direction corresponding to the figure type.

<Movement range acquisition process; Step S13>
Next, in step S <b> 13, the CPU 2 acquires the figure movement range of the figure selected by the operator. FIG. 5 is a flowchart for explaining details of the processing in step S13. Hereinafter, details of the processing will be described with reference to FIG.

In step S131, a moving range is defined. FIG. 6 is a diagram showing how the moving range is defined. The movement range frame 601 for defining the movement range of the figure is set by the operator using the input device 5. In this example, the moving range frame 601 is set as a rectangle, but it may be set as a frame including a curve.
In step S132, the vertex coordinates, edge information, and curve information (geometric information) of the movement range defined in step S131 are acquired.
In step S133, the information acquired in step S132 is stored in the memory 3.

<Moving center figure setting process; Step S14>
Next, in step S <b> 14, the CPU 2 sets a movement center graphic that is selected by the operator and becomes the movement center at the time of disassembly. FIG. 7 is a flowchart for explaining the details of the processing in step S14. Hereinafter, details of the processing will be described with reference to FIG.

In step S141, a moving center graphic is set. FIG. 8 is a diagram showing an example in which a movement center graphic is set. Here, it is assumed that the graphic indicated by the arrow 801 is the movement center graphic. The movement center graphic is designated by the operator using the input device 5.
Next, in step S142, the center coordinates, barycentric coordinates, vertex coordinates, and edge information (geometric information) of the moving center graphic defined in step S141 are acquired.
In step S143, the information acquired in step S142 is stored in the memory 3.

<Movement order calculation process; Step S15>
Next, in step S15, the CPU 2 calculates the movement order. FIG. 9 is a flowchart for explaining the details of the processing in step S15. Hereinafter, the details of the processing will be described with reference to FIG.

In step S151, the movement center graphic information acquired in step S14 is referred to. In step S152, a graphic having a contact interference relationship with the movement central graphic is searched, and a graphic having a contact interference relationship with the graphic found in the search is further determined. The process of extracting is performed recursively.
Next, in step S153, the movement order is calculated from the contact interference order (connection order) of the figures retrieved in step S152. The processing described here corresponds to an example of processing in the figure movement order acquisition step referred to in the present invention.

<Movement amount calculation process; Step S16>
Next, in step S16, the CPU 2 acquires the movement amount. FIG. 10 is a flowchart for explaining the details of the processing in step S16. Hereinafter, the process will be described with reference to FIG.

In step S161, the movement range information acquired in step S13 is referred to, and in step S162, the movement center graphic information acquired in step S14 is referred to.
In step S163, the movement amount at which each figure is arranged at equal intervals from the movement center figure within the movement range is calculated from the movement range information and the movement center figure information. The processing described here corresponds to an example of processing in the graphic movement amount acquisition step of the present invention.

<Figure Movement Processing; Step S17>
Finally, in step S17, the CPU 2 performs a process of moving and arranging a figure using the information acquired and calculated in steps S11 to S16. A three-dimensional exploded view is created by the above processing. FIG. 11 is a diagram showing an example of a three-dimensional exploded view composed of three-dimensional figures after moving arrangement. The process of step S17 corresponds to an example of the process in the figure moving step referred to in the present invention.

  As described above, according to the exploded view creation device according to the present embodiment, a three-dimensional exploded view can be generated without inputting a moving direction, a moving amount, and a moving order individually for the three-dimensional figure included in the assembly drawing. Obtained automatically. Here, in the exploded view creation apparatus according to the present embodiment, the movement direction is predetermined for each figure type, the movement order related to the decomposition is determined as the contact interference order (connection order) with respect to the movement center figure, It is determined in advance according to a predetermined standard. In addition, the movement amount of the graphic is determined by a predetermined amount (in this embodiment, an equal interval from the movement center graphic in the movement range frame). For this reason, it is possible to easily obtain a three-dimensional exploded view for each individual figure without inputting information on the moving direction, the moving amount, and the moving order. Further, since the disassembly order is determined by the contact interference order with respect to the moving center graphic, it is possible to obtain an appropriate exploded view that is easy to visually recognize.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. In the present embodiment, in the state in which the three-dimensional figure moved by the exploded view creation apparatus according to the first embodiment is two-dimensionally projected from an arbitrary viewpoint, the three-dimensional figure is located at a position where each two-dimensional projection figure does not overlap. A method of arranging the will be described.

  FIG. 12 shows a cubic image that is two-dimensionally projected by a process of two-dimensionally projecting a three-dimensional figure from an arbitrary viewpoint direction obtained by a process of acquiring a viewpoint direction by selection of an operator (viewpoint direction acquisition step in the present invention). The state of the two-dimensional projection figure concerning the original figure is shown. In this figure, a portion 1201 filled in black is a portion where two-dimensional projection graphics overlap each other, and is obtained by a process of determining whether or not two-dimensional projection graphics overlap each other.

  FIG. 13 is a flowchart for explaining the process of acquiring the movement direction / movement amount in the process of moving the three-dimensional graphic when the two-dimensional projection graphic overlaps as in the example of FIG. Note that the preconditions prior to the execution of this process are the same as those in the first embodiment. Specifically, after the processes in steps S11 to S16 in FIG. It is preferable to execute the processing according to the embodiment. Hereinafter, details of the processing will be described.

  First, in step S211, a contour ridge line of an area where two-dimensional projection figures overlap is acquired. FIG. 14A is a diagram showing an example of a region where two-dimensional projection figures overlap. Here, it is assumed that information on the contour ridge line of the interference region 1401 (shaded portion) is acquired.

  Next, in step S212, the contour ridge line acquired in step S211 is discretized at regular intervals (that is, coordinate values on the contour ridge line are obtained at regular intervals). FIG. 14B shows a state in which the contour ridge line is discretized at a constant interval (a point on the outer periphery of the interference region 1401).

  Next, in step S213, the movement order of the overlapping two-dimensional projection figures from the movement center figure (the figure set in step S14 in FIG. 2) is compared.

  Next, in step S214, circumscribed rectangles are calculated in order from the two-dimensional projected figure whose movement order is located later as a result of the comparison in step S213. The circumscribed rectangle is a frame having a range that fits the two-dimensional projection figure so that it is completely enclosed. In the example shown in FIG. 14B, 1402 is the circumscribed rectangle.

  Next, in step S215, a vector from the discretization point performed in step S212 to the vertex of the circumscribed rectangle acquired in step S214 is obtained, and all vectors are synthesized.

  Next, in step S216, the combined vector performed in step S215 is defined as a two-dimensional movement direction.

  Next, in step S217, a three-dimensional movement direction is acquired based on the two-dimensional movement direction obtained in step S216. Specifically, based on the two-dimensional movement direction, the movement direction and the movement amount acquired in steps S12 and S16 in FIG. 2 are corrected. Note that the processing in step S217 corresponds to an example of processing in the correction step referred to in the present invention.

  In step S218, the three-dimensional figure is moved and arranged in accordance with the three-dimensional movement direction acquired in step S217.

  By performing the processing as described above, the exploded view creation apparatus according to the present embodiment can automatically obtain a three-dimensional exploded view in which two-dimensional projection figures projected from an arbitrary viewpoint do not overlap each other. A two-dimensional exploded view in which projected figures do not overlap can also be obtained.

(Third embodiment)
Next, a third embodiment of the present invention will be described. In this embodiment, in the configuration of the first and second embodiments, there is no matching figure type in the table information (FIG. 4) in which the figure type and the moving direction are associated, and the moving direction cannot be obtained. The case response will be described.

  In the present embodiment, the movement direction of a figure that has a primary connection relationship with a figure for which a matching movement direction cannot be obtained is obtained from the table information in which the figure type and the movement direction are associated with each other. Then, the figure is moved with the same direction as the movement direction as the movement direction of the figure for which the movement direction could not be obtained (FIG. 2, step S127).

  According to the above configuration, a three-dimensional exploded view can be automatically obtained even when the moving direction cannot be obtained.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described. In the present embodiment, a moving range defining method when the moving range is not defined in the configuration of the first and second embodiments will be described.

  When the operator does not define the movement range, specifically, in the present embodiment, the area displayed on the display output device 7a is defined as the movement range.

  According to the above configuration, a three-dimensional exploded view can be automatically obtained even when the operator does not define the movement range.

(Fifth embodiment)
Next, a fifth embodiment of the present invention will be described. In the present embodiment, a case where the moving center setting method is different from the first and second embodiments will be described.

  Specifically, in the present embodiment, the movement center is an arbitrary point in space. FIG. 15 is a diagram for explaining an example of setting the movement center according to the present embodiment. In the example of FIG. 15, the point indicated by 1501 is the movement center. When the movement center 1501 is set, the movement order is calculated by detecting the shortest figure from the movement center point and obtaining the contact interference order from the detected figure.

  According to the above configuration, a three-dimensional exploded view can be obtained automatically even when the operator does not set the movement center graphic.

(Sixth embodiment)
Next, a sixth embodiment of the present invention will be described. In the present embodiment, a case will be described in which the moving center graphic setting method is different from those of the first, second, and fifth embodiments.

  In the present embodiment, a condition for a figure to be a movement center figure is defined in advance, and the definition information is stored in the memory 3 or the external storage device 9. When the processing target graphic is instructed, the configuration information is referred to, the definition information recorded in the memory 3 or the external storage device 9 is compared, and the graphic that matches the condition of the movement central graphic is searched for. Specify shapes automatically. In this case, if there is one matching figure, that figure is automatically designated as the moving center figure, and if there are two or more matching figures, the figure first found in the search processing operation is selected. Automatically specify as the moving center figure.

  According to the above configuration, a three-dimensional exploded view can be obtained automatically even when the operator does not set the movement center graphic.

(Seventh embodiment)
Next, a seventh embodiment of the present invention will be described. In this embodiment, as a result of searching for a moving center graphic from a predetermined condition in the configuration of the sixth embodiment, there is a moving center graphic setting method when there are two or more moving center graphic as in the sixth embodiment. The different cases will be described.

  Specifically, in this embodiment, when there are two or more results that match the moving center graphic search condition, information on the graphic matched by the search is displayed on the display output device 7a, and the operator can be displayed from the displayed screen. The movement center figure is defined by selecting.

(Eighth embodiment)
Next, an eighth embodiment of the present invention will be described. In the present embodiment, a description will be given of a case where the processing target figure exceeds the moving range frame before moving in the configurations of the first and second embodiments.

  FIG. 16 is a diagram illustrating an example of a case where the graphic to be processed exceeds the movement range frame before moving. In this figure, the figure to be processed (P1, P2, P11, P12) exceeds the set movement range frame 1601 before moving apart. In this embodiment, the operator is instructed to reset the movement range frame in such a case. As an instruction method, a display for prompting an instruction is displayed on the display output device 7a.

(Ninth embodiment)
Next, a ninth embodiment of the present invention will be described. In the present embodiment, a case will be described in which the configurations according to the first and second embodiments are different from the method for moving the graphic to be processed.

  In this embodiment, an offset value from the defined movement range frame is input in advance. Then, the graphic that is farthest from the moving center graphic among the processing target graphics is moved to a position that is offset from the movement range frame by the value of the input offset value. Similarly, other figures are moved while maintaining the movement order from the movement center figure. FIG. 17 is a diagram illustrating an example of a figure after processing according to the present embodiment. In this figure, the figure P12 that is the farthest from the movement center figure (P11) among the figures to be processed is moved to a position that is offset from the frame of the movement range area 1701 by the offset value (L). Even in such a case, a three-dimensional exploded view can be automatically obtained without inputting the movement amount in advance. Here, the movement distance of a graphic other than the graphic farthest from the moving graphic is calculated and moved as follows (1) to (3).

(1) Find the shortest distance between the moving center graphic and the graphic farthest from the moving central graphic placed at a position offset from the moving frame.
(2) A value obtained by dividing the distance obtained in the above (1) by the number of figures existing between the moving center figure and the figure arranged at the offset position is defined as an interval (distance) between the figures.
(3) Each figure moves in the moving direction possessed by the figure, and sequentially moves from a figure that is close to the moving center figure until it reaches the interval calculated in (2) above.

(Tenth embodiment)
Next, a tenth embodiment of the present invention will be described. In the present embodiment, a case where a plurality of movement range frames are defined in the configurations of the first and second embodiments will be described.

  FIG. 18 is a diagram illustrating an example when a plurality of movement range frames are defined. In this figure, there are two rectangular frames (movement range frame 1 (1801) and movement range frame 2 (1802)) that define the movement range of the figure. In such a case, a message instructing the operator which moving range frame to use is displayed on the display output device 7a, and an exploded view is created in the moving range frame instructed by the operator. FIG. 19 is a diagram showing a state after processing according to the present embodiment, and shows an exploded view when the movement range frame 2 (1802) is selected by the operator.

(Eleventh embodiment)
Next, an eleventh embodiment of the present invention will be described. In the present embodiment, a figure movement unit when there is assembly configuration information in the first and second embodiments will be described.

  FIG. 20 is a diagram for explaining the present embodiment. In this figure, a frame 2001 shows assembly configuration information, and a frame 2002 displays a movement-symmetric figure (assembly drawing). In this way, the movement of the figure when there is assembly configuration information can be performed in units of subassemblies (in this example, figure P1, figure P2, and subassembly A1). FIG. 21 shows an example of movement in units of subassemblies, where subassembly A1 moves in unity units, and figures P1 and P2 that are subassemblies immediately below assembly A have moved individually.

  According to the above configuration, a three-dimensional exploded view that is easy to handle for the user can be obtained automatically.

(Twelfth embodiment)
Next, a twelfth embodiment of the present invention will be described. In this embodiment, in the process of moving the 3D figure to the position where the 2D projection figures projected from an arbitrary viewpoint do not interfere with each other as described in the second embodiment, the processing target figure exceeds the movement range. A case will be described.

  In the above case, in the present embodiment, the operator is prompted to select whether to ignore the moving range or strictly observe the moving range. If the operator selects a process that ignores the movement range, each figure is placed at a position that does not interfere when viewed from an arbitrary viewpoint. If a process that strictly observes the movement range is selected, each figure is moved. Arrange in the moving range frame according to the order.

  The embodiment of the present invention has been described above. The exploded view creation processing by the exploded view creation apparatus according to the first to twelfth embodiments described above can be achieved by a program described in a desired programming language, and is not limited by the language. Absent.

  In order to realize the present invention, a storage medium in which a program code (computer program) of software that realizes the functions of the above-described embodiments may be used. In this case, the object of the present invention is achieved by supplying the storage medium to the system or apparatus, and the computer (or CPU or MPU) of the system or apparatus reads and executes the program code stored in the storage medium.

  In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the program code itself and the storage medium storing the program code constitute the present invention.

  As a storage medium for supplying the program code, for example, a flexible disk, a hard disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory card, a ROM, or the like can be used.

  Needless to say, the OS (basic system or operating system) running on the computer performs part or all of the actual processing based on the instruction of the program code.

  Furthermore, the program code read from the storage medium may be written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. In this case, based on the instruction of the written program code, the CPU or the like provided in the function expansion board or function expansion unit may perform part or all of the actual processing.

It is a block diagram which shows the structure of the exploded view preparation apparatus which concerns on embodiment of this invention. It is a flowchart explaining the main flows of the exploded view creation process by the exploded view creation apparatus which concerns on embodiment of this invention. It is a flowchart explaining the flow of the moving direction acquisition process of the exploded view creation apparatus which concerns on embodiment of this invention. It is the figure which showed an example of the table information of the database which is used in the exploded view creation apparatus which concerns on embodiment of this invention and which stores the figure classification and the moving direction information for every graphic classification. It is a flowchart explaining the flow of the movement range acquisition process of the exploded view creation apparatus which concerns on embodiment of this invention. It is the figure which showed a mode that the movement range was defined in the exploded view creation apparatus which concerns on embodiment of this invention. It is a flowchart explaining the flow of the movement center figure setting process of the exploded view creation apparatus which concerns on embodiment of this invention. It is a figure explaining an example which set the movement center figure in the exploded view creation device concerning an embodiment of the invention. It is a flowchart explaining the flow of the movement order calculation process of the exploded view creation apparatus which concerns on embodiment of this invention. It is a flowchart explaining the flow of the movement amount calculation process of the exploded view creation apparatus which concerns on embodiment of this invention. It is the figure which showed an example of the three-dimensional exploded view of the figure produced with the exploded view production apparatus which concerns on embodiment of this invention. It is the figure which showed the state of the two-dimensional projection figure at the time of carrying out the two-dimensional projection of the three-dimensional figure from the arbitrary viewpoint directions obtained by the process which acquires a viewpoint direction. It is a flowchart explaining the process which moves so that a two-dimensional projection figure may not overlap, when the two-dimensional projection of the three-dimensional figure in the 2nd Embodiment of this invention is carried out. It is the figure which showed an example of the area | region where the two-dimensional projection figure overlaps when the three-dimensional figure is two-dimensionally projected. It is a figure explaining an example of the setting of the movement center figure based on the 5th Embodiment of this invention. It is a figure for demonstrating the 8th Embodiment of this invention, and is a figure which showed an example when the figure to be processed exceeds the movement range frame before moving. It is the figure which showed an example of the mode of the figure after the process by the 9th Embodiment of this invention. It is a figure for demonstrating the 10th Embodiment of this invention, and is the figure which showed an example when multiple movement range frames are defined. It is the figure which showed the mode after the process by the 10th Embodiment of this invention. It is a figure for demonstrating the 11th Embodiment of this invention, and is the figure which showed the assembly structure information and the three-dimensional exploded view. It is the figure which showed the mode of the figure after the process by the 11th Embodiment of this invention.

Explanation of symbols

1 Control line (bus)
2 Central processing unit (CPU)
3 Memory (RAM / ROM)
3a Program storage area 3b Graphic geometric information storage area 3c Graphic attribute information storage area 3d Moving center graphic information storage area 3e Moving range information storage area 4 Input interface 5 Input device 6 Output interface 7 Output device 7a Display output device 7b Print output device ( Printer block)
8 External storage device interface 9 External storage device 10 External database interface 11 Moving direction storage database for each graphic type

Claims (8)

In an information processing apparatus, based on a three-dimensional assembly drawing formed by combining a plurality of three-dimensional figures, an exploded view creation method for creating a three-dimensional exploded view arranged by moving the plurality of three-dimensional figures,
A figure acquisition step for acquiring a three-dimensional figure to be moved included in the three-dimensional assembly drawing;
A figure movement direction acquisition step for acquiring a predetermined movement direction for the three-dimensional figure acquired in the figure acquisition step;
A figure movement order acquisition step for determining the movement order of the three-dimensional figure acquired in the figure acquisition step based on a predetermined standard;
A figure movement amount acquisition step for acquiring a predetermined movement amount for the three-dimensional figure acquired in the figure acquisition step;
An exploded view creation method comprising: a figure moving step of moving and arranging the three-dimensional figure acquired in the figure acquisition step based on the movement direction, the movement order, and the movement amount.   2. The exploded view creation method according to claim 1, further comprising a step of creating a two-dimensional exploded view by two-dimensionally projecting the three-dimensional figure moved in the figure moving step from a selected viewpoint direction. .   The exploded view creation method according to claim 1, wherein a predetermined moving direction for each three-dimensional figure is recorded in a storage medium in advance.   2. The exploded view according to claim 1, wherein the figure movement order acquisition step determines the movement order based on a connection order of a selected three-dimensional figure as a movement center and another three-dimensional figure. How to make.   The figure movement amount acquisition step is based on the selected three-dimensional figure as the movement center and the figure movement range, and moves the three-dimensional figure to be moved in the figure movement range at equal intervals from the three-dimensional figure as the movement center. The exploded view creation method according to claim 1, wherein a movement amount for placement is calculated. A viewpoint direction acquisition step for acquiring the selected viewpoint direction;
A two-dimensional projection step for two-dimensionally projecting the three-dimensional figure moved in the figure movement step from the viewpoint direction acquired in the viewpoint direction acquisition step;
A determination step for determining whether or not the two-dimensional projection figures projected in the two-dimensional projection step overlap;
When the determination step determines that the two-dimensional projection figure is overlapped, the movement amount acquired in the figure movement amount acquisition step and the figure movement direction acquisition step are acquired so that these two-dimensional projection figures do not overlap. The exploded view creation method according to claim 1, further comprising a correction step of correcting the moving direction. A program for causing a computer to execute an exploded view creation method for creating a three-dimensional exploded view in which a plurality of three-dimensional figures are moved and arranged based on a three-dimensional assembly drawing formed by combining a plurality of three-dimensional figures. And
A figure acquisition step for acquiring a three-dimensional figure to be moved included in the three-dimensional assembly drawing;
A figure movement direction acquisition step for acquiring a predetermined movement direction for the three-dimensional figure acquired in the figure acquisition step;
A figure movement order acquisition step for determining the movement order of the three-dimensional figure acquired in the figure acquisition step based on a predetermined standard;
A figure movement amount acquisition step for acquiring a predetermined movement amount for the three-dimensional figure acquired in the figure acquisition step;
A program for causing a computer to execute a graphic moving step of moving and arranging the three-dimensional graphic acquired in the graphic acquiring step based on the moving direction, the moving order, and the moving amount. An exploded view creation device for creating a three-dimensional exploded view in which a plurality of three-dimensional figures are moved and arranged based on a three-dimensional assembly drawing formed by combining a plurality of three-dimensional figures,
Graphic acquisition means for acquiring a three-dimensional graphic to be moved included in the three-dimensional assembly drawing;
Figure moving direction acquisition means for acquiring a predetermined moving direction for the three-dimensional figure acquired by the figure acquisition means;
Graphic movement order acquisition means for determining the movement order of the three-dimensional graphic acquired by the graphic acquisition means based on a predetermined standard;
Graphic movement amount acquisition means for acquiring a predetermined movement amount for the three-dimensional graphic acquired by the graphic acquisition means;
An exploded view creation apparatus comprising: a figure moving means for moving and arranging the three-dimensional figure acquired by the figure acquisition means based on the movement direction, the movement order, and the movement amount.

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