JP2011248676A - Drawing generation support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily obtain hierarchical connection of components constituting a product by improving working efficiency and drawing quality.SOLUTION: A drawing generation support device includes: a component configuration information extraction part 11 for extracting component configuration information which includes information regarding the hierarchical depths of component models and groups constituted by the component models from a three-dimensional model which is constituted of a plurality of hierarchically connected component models and has hierarchical information concerning the hierarchies of the component models; a component configuration data table generation part 12 for generating a component configuration data table including the hierarchical depths and the groups, based on the component configuration information extracted by the component configuration information extraction part 11; a component configuration field generation part 13b for drawing a component configuration field with the list of the component models displayed therein, based on the component configuration data table; and a component configuration tree generation part 13c for drawing a component configuration tree expressing the hierarchies of the component models, based on the component configuration data table.

Description

  The present invention relates to a drawing creation support apparatus that supports creation of a drawing.

  As a technique for automatically identifying the relationship between the drawings and automatically changing the figure numbers, histories, etc. of all the drawings related to the changed drawings, there is a technique disclosed in Patent Document 1, for example. The technology disclosed in Patent Document 1 assigns attributes to data such as the drawing number, drawing name, top-level drawing, and subordinate drawing of each drawing of the CAD design drawing, and the drawing number from the design drawing based on the attribute, Read the data of drawing name, top-level drawing, subordinate drawing, etc. and create a drawing configuration table showing the hierarchical relationship of those design drawings. When the design drawing is changed, all the drawings related to the previous design drawing are changed. The design drawing is detected based on the drawing configuration table, and the detected design drawing is changed to a changed drawing based on the changed design drawing.

JP 2001-282866 A

  In the technique disclosed in Patent Document 1, it is necessary to assign attributes to data such as the drawing number, drawing name, top-level drawing, and subordinate drawing of each CAD design drawing. In order to assign attributes, it is necessary to prepare a separate file that manages the connection between the attribute and the part name. Since creating such a file is a manual operation, work efficiency is poor and quality is sufficient. I can't say there is. Further, in the technique disclosed in Patent Document 1, the connection between components is expressed by a drawing configuration table, but the connection between components is difficult to visually understand in the table.

  The present invention has been made in view of the above, and improves the work efficiency and drawing quality without giving attributes to the data such as the drawing number of each drawing of the CAD design drawing, and constitutes a product The purpose is to make it easier to understand the hierarchical connection of

  In order to solve the above-described problems and achieve the object, the present invention includes a storage unit that stores a three-dimensional model that includes a plurality of hierarchically connected component models and has hierarchical information related to the hierarchy of the component models. Extracted from the three-dimensional model by the component configuration information extracting means for extracting the component configuration information, which is information including the hierarchical depth of the component model and the group constituted by the component model, and the component configuration information extracting means. A part configuration data table creating means for creating a part configuration data table including the hierarchy depth and group based on the part configuration information, and a part configuration column displaying a list of the part models based on the part configuration data table Part configuration column creation means for rendering a part configuration tree representing a hierarchy of the part model based on the part configuration column creation means for rendering and the part configuration data table The stage is a drawing production support device which comprises a.

  The present invention is a component configuration data table including a plurality of component models connected in a hierarchical manner, and a three-dimensional model having hierarchical information related to the component model hierarchy, including a layer depth of the component model and a group formed by the component model. Is created, a part configuration column displaying a list of part models is drawn based on the part configuration data table, and a part configuration tree representing the hierarchy of the part model is drawn based on the part configuration data table. As a result, it is possible to improve work efficiency and drawing quality, and to easily grasp the hierarchical connection of the parts constituting the product.

  As a desirable mode of the present invention, the part configuration data table creation means searches for a part in the lowest hierarchy in the row direction of the hierarchy information, traces a higher hierarchy of the searched lowest hierarchy part, and It is preferable to add a group attribute to the group, and add a line including the name, number, hierarchy depth, group attribute, and line number of each part in the group to the part configuration data table. . This makes it possible to create a component configuration data table.

  As a desirable mode of the present invention, the part configuration tree creation means creates grid points of I rows and J columns (I is the number of rows in the component configuration data table, J is the maximum value of the hierarchy depth + 1), and grid points Select the grid points necessary to create a horizontal line for each row in accordance with the depth of the layer, draw a horizontal line between the selected grid point and the rightmost grid point on the same row, the same group, the same Selecting the highest I number among the selected grid points on the hierarchy, and drawing a vertical line between the selected grid point and the grid point having the same J number on the next higher hierarchy preferable. This makes it possible to draw a component configuration tree.

  The present invention can efficiently draw in a short time a part configuration column that displays a list of part models and a part configuration tree that represents a hierarchical connection of parts that make up a product, thereby improving work efficiency and drawing quality. it can. In addition, from the part configuration tree, the parent part corresponding to the child part can be confirmed as a visual image on the drawing, and the accuracy of the configuration information can be confirmed, the parent part search accuracy can be improved, and the search time can be shortened. .

FIG. 1 is a diagram illustrating a hardware configuration of a two-dimensional drawing creation support apparatus according to the present embodiment. FIG. 2 is a diagram illustrating an example of a three-dimensional model. FIG. 3 is a diagram illustrating an example of hierarchical information representing a hierarchical structure of component parts included in the three-dimensional model. FIG. 4 is a diagram illustrating an example of a three-dimensional model. FIG. 5 is a diagram illustrating an example of a three-dimensional model. FIG. 6 is a diagram illustrating an example of a three-dimensional model. FIG. 7 is a diagram illustrating an example of a three-dimensional model. FIG. 8 is a diagram illustrating an example of a three-dimensional model. FIG. 9 is a diagram illustrating an example of a three-dimensional model. FIG. 10 is a diagram illustrating an example of a three-dimensional model. FIG. 11 is a diagram illustrating an example of a three-dimensional model. FIG. 12 is a diagram illustrating an example of a three-dimensional model. FIG. 13 is a diagram illustrating an example of a three-dimensional model. FIG. 14 is a diagram showing functional blocks of the two-dimensional drawing creation support apparatus according to the present embodiment. FIG. 15 is a diagram illustrating an example of the component configuration data table. FIG. 16 is a diagram showing a part configuration column and a part configuration tree. FIG. 17 is a flowchart showing a processing procedure of the two-dimensional drawing creation support apparatus according to the present embodiment. FIG. 18 is a flowchart showing a processing procedure of the two-dimensional drawing creation support apparatus according to the present embodiment. FIG. 19 is a diagram illustrating an example of a three-dimensional model data selection screen. FIG. 20 is a diagram showing how to create a component configuration data table from hierarchical information. FIG. 21 is a diagram illustrating an example of a two-dimensional drawing selection screen. FIG. 22 is a diagram illustrating a state in which grid points necessary for creating a horizontal line (horizontal line) for each row of grid points are selected. FIG. 23 is a diagram illustrating a state in which a horizontal line is created between the selected lattice point and the rightmost lattice point in the same row. FIG. 24 shows a vertical line (vertical line) between the lattice point having the largest i number among the lattice points selected in the group of group attribute 1 and the lattice point having the same j number on the hierarchy one level higher. It is a figure which shows the mode that it produced. FIG. 25 is a diagram illustrating a state in which a vertical line (vertical line) is created from each layer of the group having the group attribute 1 to a higher layer. FIG. 26 is a diagram illustrating a grid point of a group having the group attribute 2. FIG. 27 is a diagram illustrating a state in which a vertical line (vertical line) is created from each layer of the group having the group attribute 2 to a higher layer. FIG. 28 is a diagram showing a grid point of a group having the group attribute 3. FIG. 29 is a diagram illustrating a state in which a vertical line (vertical line) is created from each layer of the group having the group attribute 3 to a higher layer.

  Hereinafter, the present invention will be described in detail with reference to the drawings. The present invention is not limited by the mode for carrying out the invention (hereinafter referred to as an embodiment). In addition, constituent elements in the following description include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those in a so-called equivalent range.

  FIG. 1 is a diagram illustrating a hardware configuration of a two-dimensional drawing creation support apparatus according to the present embodiment. In the present embodiment, the present invention is applied to creation support of a two-dimensional drawing. As shown in FIG. 1, the two-dimensional drawing creation support apparatus 1 includes an input device 2, a display device 3, a control device 4, and an external storage device 5.

  The input device 2 is a mouse, a keyboard, or the like, accepts an input operation or selection operation of a plotter, and outputs an input signal to the control device 4. The display device 3 is a device that displays an image such as a CRT or a liquid crystal display.

  The control device 4 is a personal computer (PC) or the like, and includes an input interface 4a, an output interface 4b, a CPU 4c as a processing device, a ROM 4d, a RAM 4e, and an internal storage device 4f. The input interface 4a, output interface 4b, CPU 4c, ROM 4d, RAM 4e, and internal storage device 4f are connected by an internal bus.

  The input interface 4a receives an input signal from the input device 2 and outputs it to the CPU 4c. The output interface 4 b receives an image signal from the CPU 4 c and outputs it to the display device 3.

  The ROM 4d stores a program such as BIOS. The internal storage device 4f is, for example, an HDD or the like, and stores an operating system program and application programs. The CPU 4c implements various functions by executing programs stored in the ROM 4d and the internal storage device 4f while using the RAM 4e as a work area.

  The external storage device 5 is a server or the like, and is connected to the control device 4 via a network such as a LAN. Note that the external storage device 5 may be installed at a location away from the control device 4.

  The internal storage device 4f or the external storage device 5 stores a three-dimensional (3D) model of the product. FIG. 2 is a diagram illustrating an example of a three-dimensional model stored in the internal storage device 4 f or the external storage device 5. FIG. 2 is a diagram illustrating an example of a three-dimensional model of COLUMN_A_ASSY that constitutes a steering column of a vehicle. FIG. 3 is a diagram illustrating an example of hierarchical information representing a hierarchical structure of components constituting COLUMN_A_ASSY, which the three-dimensional model of COLUMN_A_ASSY has. The hierarchical structure of the parts in FIG. 3 is model information indicating the upper and lower configurations of the parts, and is stored as a data structure including a model configuration tree. Referring to the hierarchy information 20 shown in FIG. 3, COLUMN_A_ASSY includes COLUMN_B_ASSY and COLUMN_D_ASSY. FIG. 4 is a diagram illustrating an example of a three-dimensional model of COLUMN_B_ASSY, and FIG. 5 is a diagram illustrating an example of a three-dimensional model of COLUMN_D_ASSY.

  Referring to the hierarchy information 20 shown in FIG. 3 again, COLUMN_B_ASSY includes COLUMN_C_ASSY and SHAFT_A_ASSY. FIG. 6 is a diagram illustrating an example of a three-dimensional model of COLUMN_C_ASSY, and FIG. 7 is a diagram illustrating an example of a three-dimensional model of SHAFFT_A_ASSY.

  Referring back to the hierarchy information 20 shown in FIG. 3, COLUMN_C_ASSY is composed of COLUMN_A_PART and BEARING_A_PART. FIG. 8 is a diagram illustrating an example of a three-dimensional model of COLUMN_A_PART, and FIG. 9 is a diagram illustrating an example of a three-dimensional model of BEARING_A_PART.

  Referring to the hierarchy information 20 shown in FIG. 3 again, SHAFT_A_ASSY is composed of SHAFT_A_PART and SHAFT_B_PART. FIG. 10 is a diagram illustrating an example of the three-dimensional model of SHAFT_A_PART, and FIG. 11 is a diagram illustrating an example of the three-dimensional model of SHAFT_B_PART.

  Referring back to the hierarchy information 20 shown in FIG. 3, COLUMN_D_ASSY is composed of COLUMN_B_PART and BEARING_B_PART. FIG. 12 is a diagram illustrating an example of a three-dimensional model of COLUMN_B_PART, and FIG. 13 is a diagram illustrating an example of a three-dimensional model of BEARING_B_PART.

  In addition to the above-described three-dimensional model, a two-dimensional (2D) drawing is stored in the internal storage device 4f or the external storage device 5.

  FIG. 14 is a diagram showing functional blocks of the two-dimensional drawing creation support apparatus according to the present embodiment. As shown in FIG. 14, the two-dimensional drawing creation support apparatus according to this embodiment includes a part configuration information extraction unit 11, a part configuration data table creation unit 12, a two-dimensional (2D) drawing part configuration column creation unit 13, Is included. The two-dimensional drawing part configuration column creation unit 13 includes a two-dimensional (2D) drawing selection unit 13a, a part configuration column creation unit 13b, and a part configuration tree creation unit 13c. Each of these functional blocks is realized by the CPU 4c (see FIG. 1) executing a program stored in the internal storage device 4f.

  The part configuration information extraction unit 11 extracts part configuration information from the hierarchical information 20 (see FIG. 3) of the three-dimensional model. The part configuration data table creation unit 12 creates a part configuration data table representing the part configuration based on the part configuration information extracted by the part configuration information extraction unit 11. FIG. 15 is a diagram illustrating an example of the component configuration data table. The part configuration data table 30 shown in FIG. 15 includes a part name (part name), the number, a hierarchy depth that is a depth of a hierarchy from a top-level part to the part, a group attribute (group number), and a row number. Have items. A method of creating the component configuration data table 30 (see FIG. 15) from the hierarchical information 20 (see FIG. 3) of the three-dimensional model will be described in detail later.

  Referring to FIG. 14 again, the two-dimensional drawing selection unit 13a selects a two-dimensional drawing based on a user input. Based on the part configuration data table 30, the part configuration column creation unit 13b draws (creates) a component configuration column representing the part configuration on the two-dimensional drawing selected by the two-dimensional drawing selection unit 13a. The part configuration column includes items of a hierarchical depth of each part, a part name (part name), and the number of parts. Based on the part configuration data table 30, the part configuration tree creation unit 13c draws (creates) a part configuration tree representing the hierarchical structure of the parts in the part configuration column. FIG. 16 is a diagram illustrating a state in which the part configuration column creation unit 13 b has drawn the part configuration column 42 on the two-dimensional drawing 40 and the part configuration tree creation unit 13 c has drawn the part configuration tree 44 in the part configuration column 42. . The drawing method in which the component configuration tree creation unit 13c draws the component configuration tree 44 based on the component configuration data table 30 will be described in detail later.

  17 and 18 are flowcharts showing the processing procedure of the two-dimensional drawing creation support apparatus 1. The component configuration information extraction unit 11 (see FIG. 14) of the two-dimensional drawing creation support apparatus 1 causes the user to select a target product (three-dimensional model data) as step S1. FIG. 19 is a diagram illustrating an example of a screen when the user selects a target product (three-dimensional model data). This screen 50 has a file name input field 50a. The user inputs a file name of a desired target product (three-dimensional model data) in the file name input field 50a, and a button (image) “execute”. Click 50b.

  Referring to FIG. 17 again, in step S2, the component configuration information extraction unit 11 extracts hierarchical information 20 (see FIG. 3) necessary for creating the component configuration data table from the target product (three-dimensional model data) file.

  Next, the part configuration data table creation unit 12 (see FIG. 14) creates the part configuration data table 30 (see FIG. 15) as step S3 based on the hierarchical information 20 (see FIG. 3) extracted in step S2. create. FIG. 20 is a diagram showing how to create the component configuration data table 30 from the hierarchy information 20. First, the component configuration data table creation unit 12 searches for a component in the lowest hierarchy in the row direction (direction A in the drawing) from the first row of the hierarchy information 20. In the example illustrated in FIG. 20, the component configuration data table creation unit 12 searches for COLUMN_A_PART and BEARING_A_PART. Next, the component configuration data table creation unit 12 traces the upper layers of COLUMN_A_PART and BEARING_A_PART, and sets COLUMN_A_PART and BEARING_A_PART to the component COLUMN_A_ASSY of the highest layer as one group. Then, the part configuration data table creation unit 12 assigns a group attribute (group number) to this group, and includes a name (part name), number, hierarchy depth, group attribute, and line number of each part in the group. Is added to the part configuration data table 30. In the example illustrated in FIG. 20, the component configuration data table creation unit 12 sets COLUMN_A_ASSY, COLUMN_B_ASSY, COLUMN_C_ASSY, COLUMN_A_PART, and BEARING_A_PART as one group 101. Then, the component configuration data table creation unit 12 assigns group attribute 1 to this group 101, and configures five rows including the name, number, hierarchy depth, group attribute, and row number of each component in the group 101 as component configuration. It is added to the data table 30.

  In addition, the part configuration data table creation unit 12 repeats the above-described procedure to search for the next lowest-level part. In the example illustrated in FIG. 20, the component configuration data table creation unit 12 searches for SHAFT_A_PART and SHAFT_B_PART. Next, the component configuration data table creation unit 12 traces the upper layer of SHAFT_A_PART and SHAFT_B_PART, sets one group from SHAFT_A_PART and SHAFT_B_PART to the component COLUMN_A_ASSY of the highest layer, and assigns a group attribute (group number) to this group. A line including the name (part name), number, hierarchy depth, group attribute, and line number of each part in the group is added to the part configuration data table 30. In the example illustrated in FIG. 20, the component configuration data table creation unit 12 sets COLUMN_A_ASSY, COLUMN_B_ASSY, SHAFT_A_ASSY, SHAFT_A_PART, and SHAFT_B_PART as one group 102, assigns group attribute 2 to this group 102, and assigns each component in the group 102. A line including the name (part name), the number, the hierarchy depth, the group attribute, and the line number is added to the part configuration data table 30. As for COLUMN_A_ASSY and COLUMN_B_ASSY, a row has already been added to the component configuration data table 30 by the processing for the group 101, so it is only necessary to add the group attribute 2.

  In addition, the part configuration data table creation unit 12 repeats the above-described procedure to search for the next lowest-level part. In the example illustrated in FIG. 20, the part configuration data table creation unit 12 searches for COLUMN_B_PART and BEARING_B_PART. Next, the component configuration data table creation unit 12 traces the upper layers of COLUMN_B_PART and BEARING_B_PART, sets COLUMN_B_PART and BEARING_B_PART to the component COLUMN_A_ASSY of the highest layer as one group, and assigns a group attribute (group number) to this group. A line including the name (part name), number, hierarchy depth, group attribute, and line number of each part in the group is added to the part configuration data table 30. In the example illustrated in FIG. 20, the component configuration data table creation unit 12 sets COLUMN_A_ASSY, COLUMN_D_ASSY, COLUMN_B_PART, and BEARING_B_PART as one group 103, assigns group attribute 3 to this group 103, and names each component in the group 103 ( A line including the part name), the number, the hierarchy depth, the group attribute, and the line number is added to the part configuration data table 30. As for COLUMN_A_ASSY, a row has already been added to the component configuration data table 30 by the processing for the group 101, so it is only necessary to add the group attribute 3.

  Referring to FIG. 17 again, the two-dimensional drawing selection unit 13a (see FIG. 14) causes the user to select a two-dimensional drawing to be worked as step S4. FIG. 21 is a diagram illustrating an example of a screen when the user selects a two-dimensional drawing to be worked. This screen 52 has a check box 52a for selecting a new drawing and a check box 52b for selecting an existing drawing. The user checks either the check box 52a or the check box 52b. Then, a new drawing or an existing drawing is selected. The screen 52 has an input field 52c for inputting the drawing size of the new drawing. When the user selects a new drawing, the user inputs the drawing size in the input field 52c. The screen 52 also has an input field 52d for inputting a file name of an existing drawing. When the user selects an existing drawing, the user inputs the file name of the existing drawing in the input field 52d. Thereafter, the user clicks a button (image) 52e “execute”.

  Referring to FIG. 17 again, the part configuration column creating unit 13b (see FIG. 14) creates a part configuration column 42 (see FIG. 16) on the two-dimensional drawing selected in step S4 as step S5. The part configuration column creating unit 13b adds the hierarchical depth, part name (part name), and number of each part in the part configuration data table 30 to the part configuration column 42.

  Next, the part configuration tree creation unit 13c (see FIG. 14) extracts information necessary for creating the part configuration tree 44 (see FIG. 16) from the part configuration data table 30 in step S6, and in step S7, the part Subroutine processing for creating a part configuration tree 44 in the hierarchical frame of the configuration column 42 is executed.

  FIG. 18 is a flowchart showing a subroutine process for creating the component configuration tree 44. First, the part configuration tree creation unit 13c calculates the number of grid points necessary for creating the part configuration tree 44 in step S11. Here, the number of grid points necessary for creating the component configuration tree 44 is calculated by (i × j). Here, i is the number of rows in the component configuration data table 30, and is 11 in this embodiment (see FIG. 15). Further, j is (the maximum value of the hierarchy depth + 1). In the present embodiment, the maximum value of the layer depth is 4 (see FIG. 15). The reason why 1 is added to the maximum value of the hierarchy depth as j is to draw a horizontal line at the end of the hierarchy.

  Next, in step S12, the part configuration tree creation unit 13c creates the number calculated in step S11, that is, the grid points in i rows and j columns.

Next, in step S13, the part configuration tree creation unit 13c selects grid points necessary for drawing a horizontal line (horizontal line) for each row of grid points. FIG. 22 is a diagram illustrating a state in which grid points necessary for drawing a horizontal line (horizontal line) for each row of grid points are selected. The lattice points selected here are determined according to the hierarchical depth. For example, the component in the first row of the component configuration data table 30 is COLUMN_A_ASSY, but the hierarchical depth of COLUMN_A_ASSY is 1, so in the first row of lattice points, the first lattice point from the left is a horizontal line (horizontal line). Is selected as a grid point necessary for drawing. Further, for example, the part in the second row of the part configuration data table 30 is COLUMN_B_ASSY, but the hierarchical depth of COLUMN_B_ASSY is 2, so in the second row of grid points, the second grid point from the left is a horizontal line ( This is selected as a grid point necessary for drawing a horizontal line. Also, for example, the part in the third row of the part configuration data table 30 is COLUMN_C_ASSY, but the hierarchical depth of COLUMN_C_ASSY is 3, so in the third row of grid points, the third grid point from the left is a horizontal line ( This is selected as a grid point necessary for drawing a horizontal line. Similarly, grid points necessary for creating a horizontal line (horizontal line) are selected for the other rows in accordance with the layer depth of the component. In the present embodiment, each lattice point is represented by P _ij (i = 1 to 11, j = 1 to 5).

  Referring to FIG. 18 again, in step S14, the part configuration tree creation unit 13c draws a horizontal line between the selected lattice point and the rightmost lattice point in the same row. Next, in step S15, the part configuration tree creation unit 13c determines whether or not processing has been performed up to the last row. If it is determined that processing has not been performed to the last row (No), the next row is processed as a processing target. The process proceeds to S14, and if it is determined that the last line has been processed (Yes), the process proceeds to step S16. FIG. 23 is a diagram illustrating a state in which a horizontal line is drawn between the selected lattice point and the rightmost lattice point in the same row.

If the component configuration tree creation unit 13c determines that the last line has been processed in step S15 (Yes), the component group tree creation unit 13c selects the largest i-number of the selected lattice points on the same group and the same hierarchy in step S16. . Next, in step S17, the component configuration tree creation unit 13c draws a vertical line (vertical line) between the lattice point selected in step S16 and the lattice point having the same j number on the next higher hierarchy. . FIG. 24 shows the relationship between the lattice point selected in the group of group attribute 1 having the largest i number (P ₅₂ ) and the lattice point having the same j number (P ₃₂ ) on the upper layer. It is a figure which shows a mode that the perpendicular line (vertical line) was drawn in FIG.

  Referring to FIG. 18 again, in step S18, the part configuration tree creation unit 13c determines whether or not processing has been performed up to the highest hierarchy, and if it is determined that processing has not been performed up to the highest hierarchy (No), one. The process advances to step S16 with the upper hierarchy as the processing target, and if it is determined that the highest hierarchy is processed (Yes), the process advances to step S19. FIG. 25 is a diagram illustrating a state in which a vertical line (vertical line) is drawn from each layer of the group having the group attribute 1 to a higher layer.

  Referring to FIG. 18 again, in step S19, the part configuration tree creation unit 13c determines whether all groups have been processed. If it is determined that all groups have not been processed (No), the next group is processed. The process proceeds to step S16, and if it is determined that all groups have been processed (Yes), the process ends. FIG. 26 is a diagram illustrating a grid point of a group with group attribute 2, and FIG. 27 is a diagram illustrating a state in which a vertical line (vertical line) is drawn from each layer of the group with group attribute 2 to an upper layer. . FIG. 28 is a diagram illustrating lattice points of a group with group attribute 3, and FIG. 29 is a diagram illustrating a state in which a vertical line (vertical line) is drawn from each layer of the group with group attribute 3 to an upper layer. .

  The component configuration tree creation unit 13c can draw the component configuration tree 44 by executing the above subroutine processing.

  As described above, in the present embodiment, a component including a plurality of component models connected in a hierarchical manner and including a component model layer depth and a group formed by the component model from a three-dimensional model having hierarchical information related to the component model hierarchy. A configuration data table is created, a part configuration column displaying a list of part models is drawn based on the part configuration data table, and a part configuration tree representing a hierarchy of the part model is drawn based on the part configuration data table. As a result, it is possible to improve work efficiency and drawing quality, and to easily grasp the hierarchical connection of the parts constituting the product.

  As described above, the drawing creation support apparatus according to the present invention is useful for supporting the creation of drawings.

DESCRIPTION OF SYMBOLS 1 2D drawing creation support device 2 Input device 3 Display device 4 Control device 4a Input interface 4b Output interface 4c CPU
4d ROM
4e RAM
4f Internal storage device 5 External storage device 11 Part configuration information extraction unit 12 Part configuration data table creation unit 13 2D drawing part configuration column creation unit 13a 2D drawing selection unit 13b Part configuration column creation unit 13c Part configuration tree creation unit

Claims (3)

A storage unit configured to store a three-dimensional model including a plurality of hierarchically connected component models and having hierarchical information related to the component model hierarchy;
Part configuration information extracting means for extracting, from the three-dimensional model, part configuration information that is information including a hierarchical depth of the part model and a group formed by the part model;
Based on the part configuration information extracted by the part configuration information extraction unit, a part configuration data table creation unit that creates a part configuration data table including the hierarchy depth and the group;
Based on the component configuration data table, a component configuration column creating means for drawing a component configuration column displaying a list of the part models;
A component configuration tree creating means for drawing a component configuration tree representing a hierarchy of the component model based on the component configuration data table;
A drawing creation support apparatus comprising:   The part configuration data table creating means searches for the lowest hierarchy part in the row direction of the hierarchy information, traces the upper hierarchy of the searched lowest hierarchy part, and groups up to the highest hierarchy part as one group. The group attribute is given to the group, and a line including the name, number, hierarchy depth, group attribute, and line number of each part in the group is added to the part configuration data table. Drawing creation support device. The component configuration tree creating means creates a grid point of I rows and J columns, selects a grid point necessary for drawing a horizontal line for each row of the grid points according to the hierarchical depth, and selects the selected grid point. A horizontal line is drawn between the rightmost grid point and the grid point on the same line, and on the same group and the same hierarchy, the selected grid point having the largest I number is selected. The drawing creation support apparatus according to claim 1, wherein a vertical line is drawn between grid points having the same J number on a hierarchy.
I is the number of rows in the component configuration data table, and J is the maximum hierarchical depth + 1.

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