JP4886640B2 - Parts catalog generation device, parts catalog generation method, parts catalog generation program, and recording medium - Google Patents

Description

  The present invention generates a part catalog of each part, an assembly image in which each part is assembled from three-dimensional model data, and generates a parts catalog using these images, a part catalog generation method, a part catalog generation program, and The present invention relates to a recording medium.

  In a product manufactured by assembling a plurality of parts, an assembly procedure manual showing the assembly procedure and the like, a service manual for performing maintenance such as parts replacement, and a parts catalog are attached. It contains exploded views to facilitate assembly and disassembly. The exploded view is not an assembled state, but is disassembled into parts and displayed in a state of being separated from each other in order to represent the structure of the product and the component parts (parts). The exploded view is usually generated in a form that is grouped by unit (unit) according to the assembly state of the part and the function of the part.

  Traditionally, experienced illustrators actually disassemble the product into parts and generate each part in the optimal position and orientation, creating an exploded view that is easy to see and understand the structure as a whole. ing. Such a method of generating an illustration while actually disassembling each part has a problem of requiring cost and time.

  In view of this problem, a method, an apparatus, and a system for generating an exploded view from three-dimensional model data using a computer have been proposed (for example, see Patent Documents 1 to 3). The system of Patent Literature 1 is a system that displays an exploded view of a three-dimensional display by designating an exploded movement display direction and distance for each exploded component with respect to the three-dimensional assembly drawing. The apparatus and method disclosed in Patent Document 2 generates an exploded view of a product based on product structure data and assembly condition data by moving the parts in the disassembly direction determined from the assembly condition data and changing the arrangement position of the parts. Apparatus and method. The method of Patent Document 3 calculates the inner product of the assembly direction vector of the parts constituting the assembly and the vertex coordinates of the parts constituting the assembly, and obtains the interval between the parts in the exploded assembly drawing based on the calculated inner product. , A method of generating based on the interval.

  In the system of Patent Document 1 and the apparatus and method of Patent Document 2, the generator of the exploded view must specify the display direction and distance for each component, and the amount of work is large for products with a large number of components. There was a problem that there were many. In the method of Patent Document 3, an interval value must be set. If the interval value is not decomposed into an optimum position, it is necessary to adjust the position of each part while looking at the entire arrangement. There was a problem.

  In view of this, the present applicant has proposed a parts catalog generation system that generates an assembly drawing and an overall view in which a part other than the corresponding part is displayed in a translucent manner instead of an exploded view from three-dimensional model data (see Patent Document 4). This system generates a single image of each part composing the 3D model from the 3D model data and an assembly drawing that highlights only the relevant part in a state where all the parts are assembled, and for each part in the assembly diagram. Boundary information such as position, height, width, etc. is calculated, and this boundary information and part configuration information are synthesized to generate a parts catalog.

JP 2004-246762 A JP 2003-76724 A Japanese Patent No. 3527771 JP 2007-219907 A

  However, in the parts catalog using exploded views, a plurality of parts are represented by one image, whereas in Patent Document 4, as many images as the number of viewpoints are required for each part, and exploded views are used. There was a problem that the amount of data increased compared to the parts catalog.

  The present invention has been made in view of the above, and a parts catalog generation device, a parts catalog generation method, and a parts catalog generation capable of reducing the amount of data while maintaining the advantage of being able to recognize the position and shape of a part three-dimensionally An object is to provide a program and a recording medium.

  In order to solve the above-described problems and achieve the object, the invention according to claim 1 generates two-dimensional image data of the unit from a plurality of viewpoints from the three-dimensional model data of the unit composed of a plurality of parts. Based on the relationship between the viewpoint, the specific part, and the unit, from the two-dimensional image data of the unit that includes the specific part among the plurality of parts, generated from a plurality of viewpoints, Display viewpoint selecting means for selecting two-dimensional image data for image display, which is the two-dimensional image data for displaying a specific part, and image enhancement for enhancing an image of the specific part of the two-dimensional image data for image display The unit, the specific part, and the two-dimensional image data for image display are associated with each other and generated as a parts catalog. Characterized by comprising a parts catalog generating means.

  According to a second aspect of the present invention, there is provided the parts catalog generation device according to the first aspect, wherein the image data that complements the two-dimensional image data for image display is obtained from two-dimensional image data other than the two-dimensional image data for image display. The image processing apparatus further includes complementary image data generation means for generating.

  According to a third aspect of the present invention, in the parts catalog generating device according to the second aspect, the complementary image data generating means includes an image of the part of the specific part and an image of the other part in the two-dimensional image data. And generating image data displaying different colors.

The invention according to claim 4 is the parts catalog generation device according to claim 2,
The complementary image data generation means generates image data in which the image of the part of the specific part is displayed in a single color and the image of the other part is displayed as a line drawing in the two-dimensional image data. .

  The invention according to claim 5 is the parts catalog generating device according to any one of claims 1 to 4, wherein the display viewpoint selecting means is arranged such that the specific part is in front of the unit when viewed from the viewpoint. The two-dimensional image data arranged on the side is selected as the two-dimensional image data for image display.

  The invention according to claim 6 is the parts catalog generation device according to any one of claims 1 to 4, wherein the display viewpoint selecting means has a maximum drawing area of the specific part when viewed from the viewpoint. The two-dimensional image data arranged so as to be selected as the two-dimensional image data for image display is selected.

  The invention according to claim 7 is the parts catalog generating device according to any one of claims 1 to 6, wherein the display emphasizing means is the two-dimensional image data for image display of a translucent image, The specific part is emphasized by converting it into an opaque image.

  The invention according to claim 8 is the parts catalog generating device according to any one of claims 1 to 7, wherein a bounding box generating means for generating a bounding box of the specific part, and the two-dimensional image data Coordinate value calculating means for calculating the coordinate value of each vertex of the bounding box of the specific part is further provided.

  The invention according to claim 9 is the parts catalog generation device according to claim 8, wherein the parts catalog generation means further generates the parts catalog by further associating the coordinate values.

  According to a tenth aspect of the present invention, there is provided an image generation step in which the image generation means generates two-dimensional image data of the unit from a plurality of viewpoints from the three-dimensional model data of the unit composed of a plurality of parts; From the two-dimensional image data of the unit that includes a specific part among the plurality of parts, the viewpoint selection is generated at a plurality of viewpoints in the image generation step, to the relationship between the viewpoint, the specific part, and the unit. Based on the display viewpoint selection step for selecting the two-dimensional image data for image display, which is the two-dimensional image data for displaying the specific part, and the image enhancement means selected in the display viewpoint selection step An image emphasizing step for emphasizing the image of the specific part of the two-dimensional image data; But the unit, the particular part, characterized in that it comprises a, a parts catalog generation step of generating a parts catalog in association with two-dimensional image data for the image display.

  The invention according to claim 11 is characterized by causing a computer to execute the parts catalog generation method according to claim 10.

  The invention according to claim 12 is a computer-readable recording medium on which the parts catalog generation program according to claim 11 is recorded.

  According to the present invention, since the number of assembly drawing data used in the parts catalog can be reduced, the amount of data in the parts catalog can be reduced.

Further, according to the present invention, since the data amount of a certain number of assembly drawing data among the assembly drawing data used in the parts catalog can be reduced, there is an effect of reducing the data amount of the parts catalog.

  Exemplary embodiments of a parts catalog generating apparatus, a parts catalog generating method, a parts catalog generating program, and a recording medium according to the present invention will be explained below in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiment shown in the drawings.

(First embodiment)
FIG. 1 is a diagram showing a hardware configuration of a parts catalog generation apparatus according to the first embodiment of the present invention. The parts catalog generation device 1 relates to an input device 10 for inputting a part catalog generation request, three-dimensional model data of a product (unit) manufactured by assembling parts and a plurality of parts, and parts constituting the product (unit). External storage device 11 and memory 12 for storing part configuration information, generated parts catalog, program executed to generate parts catalog, and display device 13 for displaying each part image (data) and assembly drawing image (data) And a CPU 14 for executing the program. The input device 10, the external storage device 11, the memory 12, the display device 13, and the CPU 14 are connected to each other by a bus 15.

  The input device 10 can be a keyboard for inputting a search keyword or the like, or a mouse for selecting one item from a list and pressing a button. The parts catalog generation request is performed by, for example, displaying a search screen on the display device 13, selecting a product for which a parts catalog is to be generated from a plurality of products displayed on the search screen, and clicking a generation start button. It can be entered by pressing. This request is received as a request signal by the CPU 14 via the bus 15, and the corresponding three-dimensional model data is read from the external storage device 11 or the memory 12, and the CPU 14 executes the program to configure the product (unit). A part catalog is generated by generating assembly drawing data including a plurality of parts.

  In addition to executing the above program, the CPU 14 can store the generated parts catalog as part catalog data in the external storage device 11 or the memory 12 or display it on the display device 13. A creator who generates a parts catalog can print the parts catalog displayed on the display device 13 by a printing device such as a printer (not shown) by inputting a print instruction request to the input device 10.

The external storage device 11 is an external HDD or CD that can store data and programs.
-ROM drive, DVD drive, MO, etc. The memory 12 is a ROM
Or a RAM, a built-in HDD, or the like. The display device 13 can be a display or the like.

  FIG. 2 is a functional block diagram of the parts catalog generating apparatus according to the first embodiment of the present invention. The parts catalog generation device 1 includes a first storage unit 20, an image generation unit 21, a display viewpoint selection unit 22, a bounding box information generation unit 23, an attribute information generation unit 24, a parts catalog generation unit 25, and a second storage unit 26. It is configured with.

  The first storage unit 20 corresponds to the external storage device 11 and the memory 12 shown in FIG. 1 and stores three-dimensional model data 27 and part configuration information 28. The three-dimensional model data 27 includes shape information of parts, units and products expressed in three dimensions, part IDs of parts, and attribute information such as part colors. As the data format of the three-dimensional model data 27 that can be used in the present invention, formats such as 3DS, MDT, and DXF can be used, but are not limited to these formats. FIG. 3 is a diagram illustrating an example of the three-dimensional model data 27.

  The part configuration information 28 indicates the configuration of each part in the product, and has a hierarchical structure of product information 29, unit information 30, and part information 31. Further, the part information 31 includes a part ID, a part name, attribute information, a conversion matrix indicating a position and a direction, and the like. FIG. 4 is a diagram illustrating a data structure of the part configuration information 28, and FIG. 5 is a diagram illustrating an example of information of the part information 31. Here, the three-dimensional model data 27 and the part information 31 are associated with each other by a component ID. In the part configuration information 28, there may be a plurality of parts having the same part ID.

  By causing the CPU 14 shown in FIG. 1 to execute the program, the CPU 14 functions as an image generation unit 21, a display viewpoint selection unit 22, a bounding box information generation unit 23, an attribute information generation unit 24, and a parts catalog generation unit 25. Can do.

  The image generation unit 21 reads the part and unit three-dimensional model data 27 from the first storage unit 20 to generate an illustration image for each part, and the unit assembly diagram data (two-dimensional image) from a plurality of viewpoints. Multiple data).

  The illustration image of a single part identifies the vertices and line segments corresponding to the part of the 3D model data, assigns an appropriate rendering within the closed curved surface, and then uses GIF, JPEG, TIFF, PNG, BMP or uses It is generated by storing in an appropriate storage area in a format such as a file unique to the 3D CAD system.

  The unit assembly diagram data is two-dimensional image data generated from the three-dimensional model data 27 corresponding to a plurality of viewpoints. The unit assembly diagram data is usually a semi-transparent image generated from each part constituting the unit. However, for the assembly display data for image display of a specific part received an instruction from the display viewpoint selection unit 22 The part is changed from a translucent image to an opaque image. Hereinafter, the assembly drawing data will be described on the assumption that it is unit assembly drawing data.

  The display viewpoint selection unit 22 receives the center point Cu of the bounding box of the unit and the center point Cp of the bounding box of the specific part from the part and unit 3D model data 27 received from the image generation unit 21. The direction vector Vp from the center point Cp of the part bounding box to the center point Cu of the unit bounding box, the line-of-sight vector Vv of each viewpoint of the plurality of assembly drawing data, and the direction vector Vp and the line-of-sight vector Vv at each viewpoint Find the angle α between. Then, the display viewpoint selection unit 22 selects the assembly diagram data that is the viewpoint for image display from the plurality of assembly diagram data generated by the image generation unit 21 for the specific parts constituting the unit, and selects the selected viewpoint. Is specified to the image generation unit 21.

  The bounding box information generation unit 23 reads out the three-dimensional model data 27 of parts and units from the first storage unit 20, and specifies specific assembly data in other assembly drawing data that has not been selected as the image display viewpoint for the specific part. Generate bounding box information for the part. Here, the bounding box information is the position information (the two-dimensional coordinate values of the eight vertices and the number of the vertex farthest from the viewpoint) of the bounding box of the specific part in the assembly drawing data.

  The attribute information generation unit 24 reads the part and unit 3D model data 27 from the first storage unit 20 and indicates the boundary data corresponding to the spatial data of the part and the position of the illustration image in the assembly drawing data. Attribute data including position data is generated.

  The parts catalog generation unit 25 receives each data generated by the image generation unit 21, the bounding box information generation unit 23, and the attribute information generation unit 24, and further reads the part configuration information 28 from the first storage unit 20, A parts catalog 32 in which data is associated is generated. The second recording unit 26 corresponds to the external storage device 11 and the memory 12 shown in FIG. 1 and stores the generated parts catalog 32.

  When the user inputs a keyword from the input device 10 such as a keyboard or a mouse, the parts catalog generation device 1 displays the illustration data of the search result parts on the screen of the display device 13 together with the assembly drawing data. Also, the parts catalog generation device 1 receives external input such as a mouse event from the user, acquires different data corresponding to the reduction rate and viewpoint of the illustration image of the part and the assembly drawing data displayed as the search result. To the user.

(Parts catalog generation method)
Next, a part catalog generation method by the part catalog generation apparatus 1 configured as described above will be described. FIG. 6 shows a flowchart of a parts catalog generation method in the parts catalog generation apparatus 1.

  The image generation unit 21 reads the three-dimensional model data 27 from the first storage unit 20 (step S601).

  The image generation unit 21 generates an illustration image for each part and generates a plurality of assembly drawing data for which a parts catalog is to be generated corresponding to a plurality of viewpoints (step S602).

  The display viewpoint selection unit 22 selects and selects assembly drawing data having a viewpoint for image display with respect to a specific part constituting the unit from a plurality of assembly drawing data corresponding to the plurality of viewpoints generated by the image generation unit 21. The assembled drawing data is designated to the image generation unit 21 (step S603). The method of selecting the image display viewpoint by the display viewpoint selection unit 22 will be described in detail later.

  The image generation unit 21 newly generates image display assembly diagram data in which the specific part becomes an opaque image with the same configuration as the assembly diagram data selected as the image display viewpoint for the specific part (step S604). .

  The bounding box information generation unit 23 generates the bounding box information of a specific part in each attached diagram data that has not been selected as the image display viewpoint (step S605). A method of generating the bounding box information of the parts by the bounding box information generation unit 23 will be described in detail later.

  The attribute information generation unit 24 generates boundary data for indicating a boundary in the assembly drawing data of the illustration data generated from the three-dimensional model data 27 (step S606). Various methods can be used to generate the boundary data. In the present invention, the pixel bits of the illustration data are determined for each bit, and the bits in which the chrominance value or the luminance value is registered are not registered. By identifying the bit, data along the part illustration can be generated and used as boundary data.

  In another embodiment of the present invention, when viewed from a specific viewpoint of a specific part, a rectangle circumscribing the bottom surface of the part is defined and corresponds to the height of the part specified from the viewpoint at that time. A rectangular parallelepiped can be set as boundary data. In the present invention, boundary data can be generated by any method. Further, in the present invention, as attribute data, a position for associating a specific bit such as the center of the illustration image with the position of the center pixel of the assembly drawing data in order to enable alignment of the illustration data in the assembly drawing data. Generate data. Note that steps S601 to S606 are executed for all parts constituting the unit.

  Next, the parts catalog generation unit 25 reads the part configuration information 28 from the first storage unit 20, acquires product information 29, unit information 30, part information 31 and the like included in the part configuration information 28, and performs steps S601 to S601. The parts catalog 32 is generated in association with each data generated in S606 (Step S607). Through the above steps, a parts catalog 32 is generated, and the generated parts catalog 32 is stored in the second recording unit 26.

(Selecting the viewpoint for image display)
Next, a method of selecting assembly drawing data having an image display viewpoint by the display viewpoint selection unit 22 will be described. FIG. 7 shows a flowchart of the method for selecting the viewpoint for image display by the display viewpoint selector 22.

  The display viewpoint selection unit 22 receives the unit and specific part three-dimensional model data 27 and a plurality of assembly drawing data viewpoint information from the image generation unit 21 (step S701). Here, the viewpoint information means the start position (three-dimensional information) of the line of sight looking at the assembly drawing data.

  The display viewpoint selection unit 22 calculates the unit's bounding box from the three-dimensional model data 27 and obtains its center point Cu (step S702). The unit's bounding box is determined as follows. For example, assuming that the three-dimensional model data is expressed by a triangular polygon, the maximum value and the minimum value of each coordinate component of XYZ are obtained from the coordinate values of all the polygons belonging to the unit. . These are six values of X1min, X1max, Y1min, Y1max, Z1min, and Z1max. The bounding box of the unit is represented as a rectangular parallelepiped represented by eight vertices having the following coordinate values.

(X1max, Y1max, Z1max), (X1min, Y1min, Z1max), (X1min, Y1min, Z1max), (X1max, Y1max, Z1min), (X1min, Y1max, Z1min), (X1max) , Y1min, Z1min), (X1min, Y1min, Z1min)

The center point Cu of the unit's bounding box is the next coordinate value.
((X1max + X1min) / 2, (Y1max + Y1min) / 2, (Z1max + Z1min) / 2)

  The display viewpoint selection unit 22 calculates a bounding box of a specific part from the three-dimensional model data 27 and obtains the center point Cp (step S703). The bounding box for a part is obtained as follows. For example, assuming that the three-dimensional model data is expressed by a triangular polygon, the maximum value and the minimum value of each coordinate component of XYZ are obtained from the coordinate values of all the polygons belonging to the unit. . These are six values of X2min, X2max, Y2min, Y2max, Z2min, and Z2max. The bounding box of the part is represented as a rectangular parallelepiped represented by eight vertices having the following coordinate values.

(X2max, Y2max, Z2max), (X2min, Y2max, Z2max), (X2max, Y2min, Z2max), (X2max, Y2max, Z2min), (X2min, Y2max, Z2min), (X2max) , Y2min, Z2min), (X2min, Y2min, Z2min)

The center point Cp of the parts bounding box is the next coordinate value.
((X2max + X2min) / 2, (Y2max + Y2min) / 2, (Z2max + Z2min) / 2)

  The display viewpoint selection unit 22 obtains a direction vector Vp from the center point Cp of the part's bounding box to the center point Cu of the unit's bounding box (step S704).

  The display viewpoint selection unit 22 obtains the line-of-sight vector Vv of each viewpoint of the plurality of assembly drawing data received from the image generation unit 21 (step S705). Here, the line-of-sight vector Vv is a direction vector having a direction toward a point (eg, the center point Cu of the unit bounding box) that is watched from the viewpoint.

  The display viewpoint selection unit 22 calculates an angle between the direction vector Vp and the line-of-sight vector Vv at each viewpoint, and selects the assembly diagram data having the smallest angle α as the assembly diagram data serving as a viewpoint for image display. (Step S706). The selected assembly diagram data is assembly diagram data in which a specific part viewed from the viewpoint among the plurality of assembly diagram data is arranged in the forefront. In this assembly drawing data, the possibility that the part is displayed on the back side of another part is reduced, and the position and shape of the part can be easily seen. FIG. 8 is a diagram illustrating a relationship among the center point Cu of the unit bounding box, the center point Cp of the part bounding box, the direction vector Vp, the line-of-sight vector Vv, and the angle α. Through the above steps, assembly drawing data having an image display viewpoint is selected.

(How to generate bounding box information)
Next, a method of generating the bounding box information of the parts by the bounding box information generation unit 23 will be described. FIG. 9 shows a flowchart of a method for generating bounding box information by the bounding box information generating unit 23.

  The bounding box information generation unit 23 includes viewpoint information (three-dimensional information) of each assembly drawing data that has not been selected as the image display viewpoint from the image generation unit 21, and position information (3 of the part in each assembly drawing data). Dimensional information) is received (step S901).

  The bounding box information generation unit 23 reads the three-dimensional model data 27 of the specific part from the first storage unit 20, and calculates the bounding box (coordinate values of eight vertices, three-dimensional information) of the specific part ( Step S902).

  The bounding box information generation unit 23 synthesizes the viewpoint information of the assembly drawing data, the position information of the specific part, and the coordinate values of the eight vertices of the bounding box of the specific part (step S903).

  The bounding box information generation unit 23 converts the three-dimensional coordinate values of the eight vertices of the bounding box of the specific part into two-dimensional coordinate values indicating the positions projected on the two-dimensional display image (step S904). This is the same as the method for converting the assembly drawing data from three dimensions to two dimensions.

  The bounding box information generation unit 23 obtains a vertex that is farthest from the viewpoint among the eight vertices of the bounding box of the specific part (step S905). For example, when parallel projection is used as a method of projecting three-dimensional data onto two-dimensional data, the one with the largest inner product of the aforementioned line-of-sight vector Vv and the position vector of the three-dimensional coordinate value of each vertex is farthest. It becomes the vertex at the position. In addition, when there are a plurality of vertices at the farthest position, an arbitrary vertex is selected as the vertex at the farthest position. FIG. 10 is a diagram showing the relationship between each vertex of the part bounding box and the viewpoint.

  The bounding box information generation unit 23 generates bounding box information to be sent to the parts catalog generation unit 25 (step S906). The bounding box information includes a two-dimensional coordinate value on the assembly drawing data of the eight vertices of the bounding box of a specific part, and the number of the vertex that is farthest from the viewpoint. The order of the eight vertices is, for example, as shown in FIG. 11, when numbers are assigned to the vertices of the bounding box, and the order in which each combination forms an edge in the bounding box is as follows.

(1,2), (2,4), (4,3), (3,1), (5,6), (6,8), (8,7), (7,5), (1 , 5), (2, 6), (3, 7), (4, 8)
Through the above steps, bounding box information is generated.

  FIG. 12 is a diagram showing a data structure of the parts catalog 32 generated by the parts catalog generator 25. The parts catalog 32 is one set for each product, the product data has data of a plurality of units constituting the product, and the data of each unit has a tree structure having data of a plurality of parts constituting the unit. It has become. The unit data stores attribute data such as a component ID and a component name, and an image data file name, and links to each image data of a corresponding single image (data) and a plurality of assembly drawings (data) having different viewpoints. is doing.

  The part data stores attribute data such as a part ID and part name, and an image data file name, and is linked to a corresponding single image (data) and an image display assembly drawing (data) of one viewpoint. In addition, each of the bounding box information in the assembly drawing (data) for display of other viewpoints is stored. In the bounding box information, the two-dimensional coordinate values on the assembly drawing data of eight vertices and the number of the vertex at the farthest position from the viewpoint are recorded in order. Then, image data linked with the unit data and the part data is also generated as a part of the parts catalog 32. In the figure, for example, a roller of a component (component ID: B012345) has an image display assembly diagram (data) at the viewpoint 1 in the paper discharge unit (component ID: B0123), and the other viewpoints 2 to 4 are as follows. You can see that it has only bounding box information.

  Accordingly, since it is not necessary to have the image display assembly drawing data for each viewpoint of each part, the data amount of the entire parts catalog 32 is reduced as compared with the case of having the image display assembly drawing data for each viewpoint of each part. can do.

  Next, how the parts catalog 32 is displayed on the browsing system will be described. When a part desired by the user is displayed among the parts constituting the unit, the browsing system normally displays the assembly drawing data for image display of the part as the assembly drawing data. In the assembly drawing data for image display, the part is opaque and the remaining parts are translucent, and the user can easily recognize the position and shape of the part in the unit. FIG. 13 is a view showing an example in which the assembly system data in which only a specific part is opaque and the remaining parts are translucent is displayed in the browsing system. In the figure, for convenience of explanation, a part drawn with a solid line represents that it is opaque, and a part drawn with a dotted line represents that it is translucent.

  For example, when the user wishes to view the roller (part ID: B012345) of the paper discharge unit (part ID: B0123), the browsing system uses B012345V1 which is the assembly diagram (image display assembly diagram data) of viewpoint 1. indicate.

  However, if the user wants an assembly drawing of the part from another viewpoint, only the assembly drawing data in which all the parts are translucent is displayed as it is, so that the position and shape of the part in the unit are recognized. It becomes difficult. For this reason, the browsing system displays assembly drawing data in which all parts are translucent, and draws the bounding box of the part in another viewpoint on the assembly drawing data. Specifically, from the recorded bounding box information, the ridgeline of the bounding box is drawn on the assembly diagram data by connecting the vertex positions of the combinations forming the ridgeline with straight lines. At this time, the ridge line including the farthest vertex in the combination is not drawn, or is drawn with a dotted line or the like. Since the part is surrounded by the bounding box, the user can easily recognize the position and shape of the part in the unit.

  FIG. 14 is a view showing an example in which assembly drawing data in which all parts constituting the unit are translucent is displayed in the browsing system, and FIG. 15 is a diagram showing all parts constituting the unit being semi-transparent in the browsing system. It is the figure which showed an example by which the bounding box of the specific part was synthesize | combined and displayed on the assembly | attachment figure data which are transparent. In the figure, for the convenience of explanation, the parts drawn by dotted lines are translucent.

  For example, when the user desires to view the roller (part ID: B012345) of the paper discharge unit (part ID: B0123) from the viewpoint 2, the browsing system sets the viewpoint 2 of the paper discharge unit (part ID: B0123). Attached B0123V2 is displayed, and a bounding box of a roller (part ID: B012345) is generated and displayed in an overlapping manner.

  In the present embodiment, the display viewpoint selection unit selects assembly drawing data having a viewpoint for image display using the relative position between the unit and the part, but the area of the part actually drawn in the assembly drawing data is the maximum. The assembling diagram data to be may be selected as assembling diagram data having a viewpoint for image display. For example, the assembly drawing data is converted into bitmap data, and the number of pixels in the part where the part exists is totaled in the bitmap data, and the total number is the largest, that is, the area where the part is drawn is the maximum. This assembly drawing data is selected as the assembly drawing data having a viewpoint for image display. The selected assembly drawing data is assembly drawing data in which the part is displayed in the largest size.

  FIGS. 16A and 16B are diagrams illustrating an example in which assembly diagram data is displayed in the browsing system. In both figures, for convenience of explanation, a part drawn with a solid line represents that it is opaque, and a part drawn with a dotted line represents that it is translucent. In both figures, an opaque part is a target part, and FIG. 16-1 has a larger area on which the part is drawn than FIG. 16-2. Therefore, the display viewpoint selection unit selects FIG. 16-1 as the assembly drawing data having the viewpoint for image display.

  As described above, according to the component catalog generation device according to the first embodiment, it is not necessary to generate the image display assembly diagram data for the assembly diagram data not selected as the part image display viewpoint. Therefore, it is possible to reduce the data amount of the parts catalog.

  Furthermore, according to the component catalog generation device according to the first embodiment, from the assembly drawing data in which the part is closest to the part, the part is an opaque image, and the other parts are semi-transparent images. Since data is generated, the position and shape of the part can be easily recognized.

  Furthermore, according to the component catalog generation device according to the first embodiment, the bounding box information is generated so that the part of the assembly drawing data not selected as the viewpoint for displaying the image of the part can be surrounded by the bounding box. Therefore, the position and shape of the part can be easily recognized.

(Second Embodiment)
In the first embodiment, the total amount of data is reduced by reducing the number of assembly drawing data in which parts constituting the unit are emphasized. On the other hand, in the second embodiment, instead of reducing the number of assembly drawing data in which the parts constituting the unit are emphasized, the data of the assembly drawing is replaced with a substitute image that can be compressed, so that the entire data We are reducing the amount. A second embodiment will be described with reference to the accompanying drawings. With respect to the configuration of the parts catalog generation device according to the present exemplary embodiment, portions different from those in the first exemplary embodiment will be described. The other parts are the same as those in the first embodiment, and therefore, the parts having the same reference numerals are referred to the above description, and the description thereof is omitted here.

  FIG. 17 is a diagram showing a hardware configuration of a parts catalog generation device according to the second exemplary embodiment of the present invention. The parts catalog generation device 41 includes an input device 10, an external storage device 11, a memory 12, a display device 13, and a CPU 14. The input device 10, the external storage device 11, the memory 12, the display device 13, and the CPU 14 are connected to each other by a bus 15.

  FIG. 18 is a functional block diagram of a parts catalog generation apparatus according to the second embodiment of the present invention. The parts catalog generation device 41 includes a first storage unit 20, an image generation unit 21, a display viewpoint selection unit 22, a complementary image generation unit 42, an attribute information generation unit 24, a parts catalog generation unit 43, and a second storage unit 44. It is prepared for.

  The first storage unit 20 stores three-dimensional model data 27 and part configuration information 28. The three-dimensional model data 27 includes part shape information expressed in three dimensions, a part ID, and attribute information such as a part color. The part configuration information 28 has a hierarchical structure of product information 29, unit information 30, and part information 31. Further, the part information 31 includes a part ID, a part name, attribute information, a conversion matrix indicating a position and a direction, and the like.

  When the CPU 14 shown in FIG. 1 executes the program, the CPU 14 can function as the image generation unit 21, the display viewpoint selection unit 22, the complementary image generation unit 42, the attribute information generation unit 24, and the parts catalog generation unit 43. it can.

  The supplementary image generation unit 42 displays the specific part in a single color with the same configuration as the assembly drawing data for each assembly drawing data that the display viewpoint selection unit 22 did not select as the viewpoint for image display of the specific part. A plurality of complementary image data in which other parts are displayed in different single colors are generated for each viewpoint. Since the complementary image data consists of two-color images, by compressing in an appropriate format such as PNG (Portable Network Graphics), an image in which a specific part is an opaque image and the other parts are transparent images Compared with the display assembly drawing data, the data amount can be reduced.

  The parts catalog generation unit 43 receives each data generated by the image generation unit 21, the complementary image generation unit 42, and the attribute information generation unit 24, and further reads the part configuration information 28 from the first storage unit 20, A parts catalog 45 in which is associated with each other is generated. The second recording unit 44 stores the generated parts catalog 45.

(Parts catalog generation method)
Next, a part catalog generation method by the part catalog generation apparatus 41 configured as described above will be described. FIG. 19 shows a flowchart of a parts catalog generation method in the parts catalog generation apparatus 41.

  The image generation unit 21 reads the 3D model data 27 from the first storage unit 20 (step S1901).

  The image generation unit 21 generates an illustration image for each part, and generates a plurality of assembly drawing data for which a parts catalog is to be generated corresponding to a plurality of viewpoints (step S1902).

  The display viewpoint selection unit 22 selects and selects assembly drawing data having a viewpoint for image display with respect to a specific part constituting the unit from a plurality of assembly drawing data corresponding to the plurality of viewpoints generated by the image generation unit 21. The assembled drawing data is designated to the image generation unit 21 (step S1903). Note that the method for selecting the image display viewpoint by the display viewpoint selection unit 22 is the same as the selection method according to the first embodiment (FIG. 7), and thus detailed description thereof is omitted.

  The image generation unit 21 newly generates image display assembly diagram data having the same configuration as the assembly diagram data selected as the image display viewpoint for the specific part, in which the part becomes an opaque image (step S1904).

  The complementary image generation unit 42 displays the specific parts in a single color with the same configuration as each assembly drawing data that has not been selected as the image display viewpoint, and newly generates complementary image data in which other parts are displayed in another single color. (Step S1905).

  The attribute information generation unit 24 generates boundary data for indicating a boundary in the assembly drawing data of the illustration data generated from the three-dimensional model data (step S1906). Note that steps S1901 to S1906 are executed for all parts constituting the unit.

  The parts catalog generation unit 43 reads the part configuration information 28 from the first storage unit 20, acquires product information 29, unit information 30, part information 31 and the like included in the part configuration information 28, and generates them in steps S1901 to S1906. A parts catalog 45 is generated in association with each piece of data (step S1907). Through the above steps, a parts catalog 45 is generated, and the generated parts catalog 45 is stored in the second recording unit 44.

  FIG. 20 is a diagram showing a data structure of the parts catalog 45 generated by the parts catalog generator 43. The parts catalog 45 is one set for each product, the product data has data of a plurality of units constituting the product, and the data of each unit has a tree structure having data of a plurality of parts constituting the unit. It has become. The unit data stores attribute data such as a component ID and component name, and an image data file name. The corresponding unit image (data), a plurality of assembly diagrams (data) having different viewpoints, and a plurality of components having different viewpoints are stored. It is linked with each image data of the complementary image (data).

  The part data stores attribute data such as part ID, part name, and image data file name, corresponding single image (data), one viewpoint image display assembly diagram (data), and other data It is linked with the complementary image (data) of the viewpoint. In the figure, among the image data file names stored from the assembly diagram (viewpoint 1) to the assembly diagram (viewpoint 4), the image data file name of one assembly diagram is the file name of the image display assembly diagram (data). Yes, the image data file names in the other assembly drawings are file names of complementary images (data). For example, the component roller (component ID: B02345) has an image display assembly diagram (data) for the viewpoint 1 in the paper feeding unit (component ID: B0223), and the other viewpoints 2 to 4, respectively. Have complementary images (data).

  Accordingly, since the complementary image can be compressed, the data amount of the entire parts catalog 45 can be reduced as compared with the case where the image display assembly drawing data is provided for each viewpoint of each part.

  Next, how the parts catalog 45 is displayed on the browsing system will be described. When a part desired by the user is displayed among the parts constituting the unit, the browsing system normally displays the assembly drawing data for image display of the part as the assembly drawing data. In the assembly drawing data for image display, the part is opaque and the remaining parts are translucent, and the user can easily recognize the position and shape of the part in the unit. FIG. 21 is a diagram illustrating another example in which assembly drawing data in which only a specific part is opaque and the remaining parts are translucent is displayed in the browsing system. In the figure, for convenience of explanation, a part drawn with a solid line represents that it is opaque, and a part drawn with a dotted line represents that it is translucent.

  For example, when the user desires to browse the roller (part ID: B022345) of the paper feed unit (part ID: B0223), the browsing system uses B022345V1, which is an assembly diagram (image display assembly diagram data) of viewpoint 1. indicate.

  However, when the user desires an assembly drawing of the part from another viewpoint, the browsing system displays complementary image data at the other viewpoint. In the complementary image data, the part is displayed in a single color, and the other parts are displayed in another single color. Therefore, in the first embodiment, compared to the case where the bounding box of the part is displayed in an overlapping manner on the assembly drawing data in which all parts are translucent, the user can position and shape the part in the unit. Can be easily recognized. FIG. 22 is a diagram illustrating an example of an image of a unit in which a specific part is displayed in a single color and all remaining parts are displayed in another single color in the browsing system. In the figure, for convenience of explanation, a black-colored portion indicates that a specific part is displayed in a single color, and a hatched portion indicates that the specific part is displayed in another single color. In this figure, for the sake of convenience, specific parts are painted black and the remaining parts are shaded.

  For example, when the user desires to view the roller (part ID: B022345) of the paper feed unit (part ID: B0223) from the viewpoint 2, the browsing system uses the supplemental image of the viewpoint 2 of the roller (part ID: B022345). A certain B022345V2 is displayed.

  In the first embodiment, the viewpoint for generating the image display assembly drawing data is omitted, and the number of image display assembly drawing data per part is reduced, thereby reducing the data amount of the parts catalog. However, as a result, some of the advantage of being able to recognize the position and shape of the part by switching images from multiple viewpoints is lost. In contrast, in the present embodiment, the recognition of the positions and shapes of parts at all viewpoints is improved by displaying a complementary image as an alternative to the image display assembly drawing data.

  In the present embodiment, the complementary image generation unit generates the complementary image data in which the part is displayed in a single color and the remaining part is displayed in another single color. Instead, the part is displayed in a single color and the remaining part is displayed. Complement image data may be generated that is displayed as a line drawing. FIG. 23 is a diagram illustrating an example of an image of a unit in which a specific part is displayed in a single color and all the remaining parts are displayed in a line drawing in the browsing system. In the figure, for convenience of explanation, a blacked-out portion indicates that a specific part is displayed in a single color. In the figure, for the sake of convenience, specific parts are painted black.

  As described above, according to the component catalog generation device according to the second embodiment, it is possible to compress the complementary image data, and thus it is possible to reduce the data amount of the parts catalog.

  Furthermore, according to the parts catalog generation device according to the second exemplary embodiment, the parts are displayed in a single color from the assembly drawing data that has not been selected as the viewpoint for displaying the image of the part, and other parts are displayed in another single color. Alternatively, since the complementary image data displayed as a line drawing is generated, the position and shape of the part can be easily recognized.

  In the parts catalog generation device according to the first and second embodiments, the display viewpoint selection unit selects the assembly drawing data of the viewpoint for image display from the assembly drawing data of a plurality of viewpoints. The person may select the assembly drawing data of the viewpoint for image display from the assembly drawing data of the plurality of viewpoints displayed on the display device.

It is a figure which shows the hardware constitutions of the parts catalog production | generation apparatus concerning the 1st Embodiment of this invention. It is a functional block diagram of the parts catalog production | generation apparatus concerning the 1st Embodiment of this invention. It is the figure which showed an example of three-dimensional model data. It is the figure which showed the data structure of part structure information. It is the figure which showed the example of information of parts information. The flowchart of the parts catalog production | generation method in a parts catalog production | generation apparatus is shown. The flowchart of the selection method of the viewpoint for image display by a display viewpoint selection part is shown. It is a figure showing the relationship between the center point Cu of the unit bounding box, the center point Cp of the part bounding box, the direction vector Vp, the line-of-sight vector Vv, and the angle α. The flowchart of the selection method of the viewpoint for image display by the bounding box information generation part is shown. It is a figure showing the relationship between each vertex of a part bounding box, and a viewpoint. It is the figure which showed an example which numbered each vertex of the bounding box. It is the figure which showed the data structure of the parts catalog produced | generated in the parts catalog production | generation part. It is the figure which showed an example by which the assembly drawing data in which only the specific part was opaque among all the parts which comprise a unit with a browsing system and the remaining parts were translucent were displayed. It is the figure which showed an example by which the assembly drawing data with which all the parts which comprise a unit are translucent were displayed by the browsing system. It is the figure which showed an example by which the bounding box of a specific part was synthesize | combined and displayed on the assembly | attachment figure data with which all the parts which comprise a unit are translucent in a browsing system. It is the figure which showed an example by which the assembly | attachment figure data was displayed with the browsing system. It is the figure which showed an example by which the assembly | attachment figure data was displayed with the browsing system. It is a figure which shows the hardware constitutions of the parts catalog production | generation apparatus concerning the 2nd Embodiment of this invention. It is a functional block diagram of the parts catalog production | generation apparatus concerning the 2nd Embodiment of this invention. The flowchart of the parts catalog production | generation method in a parts catalog production | generation apparatus is shown. It is the figure which showed the data structure of the parts catalog produced | generated in the parts catalog production | generation part. It is the figure which showed the other example by which the assembly drawing data by which only the specific part was opaque among all the parts which comprise a unit with a browsing system and the remaining parts were translucent were displayed. It is the figure which showed an example of the image of the unit in which the specific part was displayed by single color among all the parts which comprise a unit with a browsing system, and the remaining parts were displayed by another single color. It is the figure which showed an example of the image of the unit by which the specific part was displayed by the monochromatic color among all the parts which comprise a unit with a browsing system, and the remaining parts were displayed by the line drawing.

Explanation of symbols

1, 41 Parts catalog generation device 10 Input device 11 External storage device 12 Memory 13 Display device 14 CPU
DESCRIPTION OF SYMBOLS 15 Bus | bath 20 1st memory | storage part 21 Image generation part 22 Display viewpoint selection part 23 Bounding box information generation part 24 Attribute information generation part 25, 43 Parts catalog generation part 26, 44 2nd storage part 27 3D model data 28 Parts structure Information 29 Product information 30 Unit information 31 Parts information 32, 45 Parts catalog 42 Complementary image generator

Claims (12)

Image generating means for generating two-dimensional image data of the unit from a plurality of viewpoints from three-dimensional model data of the unit composed of a plurality of parts;
Based on the relationship between the viewpoint, the specific part, and the unit, from the two-dimensional image data of the unit that includes the specific part of the plurality of parts generated from a plurality of viewpoints. Display viewpoint selecting means for selecting the two-dimensional image data for image display which is the two-dimensional image data;
Image enhancement means for enhancing an image of the part of the specific part of the two-dimensional image data for image display;
A part catalog generating means for generating a part catalog by associating the unit, the specific part, and the two-dimensional image data for image display;
A parts catalog generation device characterized by comprising:   The supplemental image data generating means for generating image data for complementing the two-dimensional image data for image display from two-dimensional image data other than the two-dimensional image data for image display is further provided. The parts catalog generator described in 1. The complementary image data generation means includes
3. The parts catalog generation device according to claim 2, wherein, in the two-dimensional image data, image data in which an image of the part of the specific part and an image of the other part are displayed in different colors is generated. The complementary image data generation means includes
3. The parts catalog generation according to claim 2, wherein, in the two-dimensional image data, image data is generated in which an image of the part of the specific part is displayed in a single color and an image of the other part is displayed as a line drawing. apparatus. The display viewpoint selecting means includes
The two-dimensional image data in which the specific part is arranged on the near side in the unit when viewed from the viewpoint is selected as the two-dimensional image data for image display. The parts catalog generation device according to claim 1. The display viewpoint selecting means includes
The two-dimensional image data arranged so that the drawing area of the specific part is maximized when viewed from the viewpoint is selected as the two-dimensional image data for image display. The parts catalog generation device according to any one of the above.   7. The display emphasizing unit emphasizes the two-dimensional image data for image display of a translucent image by converting the part of the specific part into an opaque image. The parts catalog generation device according to claim 1. A bounding box generating means for generating a bounding box of the specific part;
Coordinate value calculation means for calculating the coordinate value of each vertex of the bounding box of the specific part in the two-dimensional image data;
The parts catalog generation device according to any one of claims 1 to 7, further comprising:
The parts catalog generation device according to any one of claims 1 to 7, wherein:   The parts catalog generation device according to claim 8, wherein the parts catalog generation means generates a parts catalog by further associating the coordinate values. An image generating step for generating, from a plurality of viewpoints, two-dimensional image data of the unit from three-dimensional model data of the unit composed of a plurality of parts;
The display viewpoint selection is generated from a plurality of viewpoints in the image generation step, and the relationship between the viewpoint, the specific part, and the unit from the two-dimensional image data of the unit including the specific part among the plurality of parts. A display viewpoint selection step of selecting the two-dimensional image data for image display, which is the two-dimensional image data for displaying the specific part,
An image emphasizing step for emphasizing an image of the specific part of the two-dimensional image data for image display selected in the display viewpoint selecting step;
A parts catalog generating means for associating the unit, the specific part, and the two-dimensional image data for image display to generate a parts catalog;
A part catalog generation method characterized by including:   A parts catalog generation program that causes a computer to execute the parts catalog generation method according to claim 10.   A computer-readable recording medium on which the parts catalog generation program according to claim 11 is recorded.

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