WO2014122763A1 - Cadデータの処理装置および処理方法 - Google Patents
Cadデータの処理装置および処理方法 Download PDFInfo
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- G06F30/00—Computer-aided design [CAD]
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
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- the present invention mainly relates to an apparatus and a method for supporting design of various industrial products.
- the present invention relates to an apparatus and method for supporting a work performed by a plurality of persons in charge of one product.
- Design of various products that handle 3D shape data in a CAD system, etc. may be performed jointly by multiple persons in charge.
- the CAD data created in the upstream design may be handed over to the downstream designer, and the downstream designer may create detailed CAD data while referring to it.
- the CAD systems used for design may be the same or different.
- the upstream design data may be changed and detailed, but new data must be recreated. There are also many.
- CAD data includes attribute data associated with shape data.
- the attribute data is composed of a character string or the like, and can represent a name, management number, material, designer name, design date, production date, assembly date, construction date, and the like.
- the important construction date is recorded as an attribute as the entire process
- the detailed design of the downstream is the purpose of designing individual parts, so the production of parts
- a general usage method is to record the day as an attribute.
- CAD data individually created in the downstream detailed design is merged as it is, the construction date attribute recorded in the upstream design is not included in the merged data. In order to prevent this, it is necessary to re-input the attribute data recorded in the CAD data of the upstream design at the time of detailed design or merging.
- the CAD system used in the upstream design is started, the CAD data of the upstream design is read and displayed, the attribute of the element (part) is referenced, and then the downstream It is necessary to start the CAD system used in the detailed design, read the CAD data of the detailed design, specify the corresponding element (part), and newly input or add the original attribute data to the specified element Become.
- Patent Document 1 discloses a method of extracting attribute data from CAD data and displaying only the attribute data in a separate window.
- Patent Document 2 discloses a method of comparing two CAD data and determining whether the shape and position are the same. Also disclosed is a method of clearly indicating a difference when there is a difference. Also disclosed is a method of using the identity of attribute data attached to each for determining identity.
- JP 2008-59330 A Japanese Patent No. 4860272
- the work of merging the created CAD data is complicated.
- the process of merging attribute data is a simple task but cannot be automatically performed. This is because it is difficult to identify the corresponding element.
- the shapes represented by the CAD data are different in the schematic design, basic design, and detailed design.
- an element created as one element (part) in one design may be expanded into a plurality of elements (parts) in another process design, or vice versa. For this reason, even if it is determined whether or not the shape and position are the same, most of the elements are different, and no corresponding element is found. Even if a name or management number is assigned to each element, the number of elements (parts) may change, and it is not possible to simply assign the same name or management number to the corresponding element.
- the present invention has been made in view of the above, and an object of the present invention is to provide a processing apparatus and a processing method capable of improving the efficiency of CAD data merging and suppressing leakage and errors in merging work.
- a three-dimensional CAD data processing apparatus having a plurality of elements and attribute data associated with each of the plurality of elements, means for reading the plurality of CAD data and extracting the attribute data from the first CAD data Attribute extraction means; correspondence relation extraction means for extracting correspondence using position information included in the first CAD data and second CAD data; and the second based on the extracted correspondence. And an attribute assigning means for assigning the attribute data extracted from the first CAD data to the CAD data, and a means for outputting the data provided with the attribute data.
- Diagram showing outline of processing equipment and peripheral equipment A diagram showing typical CAD data in the outline, basic, and detailed design processes The figure which represents the state where attribute data is given to typical CAD data
- Design is performed using a CAD system that handles three-dimensional shapes and attributes in the order of schematic design, basic design, and detailed design.
- the level of detail of the data expressed depends on the progress of the design. For example, data representing a column of a structure is represented by a single straight line in the schematic design at the initial stage of design (FIG. 2a). After that, in the basic design, the cross section is expressed by the shape of the shape steel in the shape of letters such as “B”, “H”, “L” (FIG. 2b). Furthermore, in the detailed design at the final stage, shape portions such as protrusions and bolt holes at the connection portion with the beam are also expressed by the added data (FIG. 2c). Further, in the detailed design, it is configured as data distinguished for each part as a manufacturing unit. However, in the initial schematic design, a plurality of columns arranged in a straight line may be combined and expressed as a single straight line.
- each data is accompanied by attribute data such as name, control number, material, designer name, design date, production date, assembly date, construction date, etc. to the elements (parts) constituting the data.
- attribute data such as name, control number, material, designer name, design date, production date, assembly date, construction date, etc. to the elements (parts) constituting the data.
- An example of attribute data is conceptually shown in FIG.
- Each shape data corresponds to FIG. 2, and in (a), the construction completion date, load load, etc. of each column are added as attributes. Similarly, in (b), assembly completion date, steel type, material, etc. are added as attributes, and in (c), production completion date, welding method, etc. are added as attributes.
- a part of typical attribute data required for schematic design, basic design, and detailed design is shown, respectively, and the present invention does not limit the attribute items and expression methods to this form.
- this embodiment can be applied between the basic design and the detailed design as well as between the schematic design and the basic design. Below, it demonstrates centering on the case where it applies between basic design and detailed design.
- the application scene of the present invention is not limited to this.
- CAD data with different design viewpoints such as CAD data for strength design and CAD data for electrical design, or a device that simply processes data before design change and data after design change is also included in the present invention. .
- FIG. 1 is a schematic diagram of a processing apparatus (100) and peripheral devices according to the present invention.
- the input / output device (101) is for inputting basic design CAD data and detailed design CAD data, instructing output, outputting created data, and the like.
- the device configuration is not limited to this.
- the input / output interface (110) is a part of the processing device (100) and exchanges data with the input / output device (101).
- the storage device (130) is a part that stores various data, and includes the following storage units.
- the basic design data storage unit (131) is a part for storing CAD data of basic design input from the input / output device (101).
- it is constituted by shape data, various attribute data attached to the shape, data representing the group relationship or relative relationship of individual shape data, etc. processed by a general CAD system.
- the detailed design data storage unit (132) is a part for storing CAD data of the detailed design input from the input / output device (101).
- data representing shape data, various attribute data attached to the shape, and group relationships and relative relationships of individual shape data which are processed by a general CAD system.
- Consists of such as The basic design data storage unit (131) and the detailed design data storage unit (132) may store data expressed in exactly the same format, or may store data in different formats.
- different formats for example, when a circle is represented in a three-dimensional space, there are a format represented by a center point, a surface direction, and a radius, and a format represented by a center point, a surface direction, and a diameter. Even if the formats are different, the same shape can be expressed.
- the format of data stored in the basic design data storage unit (131) and the detailed design data storage unit (132) is not limited.
- the element attribute data storage unit (133) is a part for storing attribute data added to elements included in the CAD data of the basic design created by the attribute extraction unit (142) described later.
- the correspondence data storage unit (134) is data generated by the correspondence extraction unit (143), which will be described later, and represents the correspondence between the elements included in the basic design CAD data and the elements included in the detailed design CAD data. It is a part that memorizes.
- the merged CAD data storage unit (135) is a part that stores data in which attributes included in the CAD data of the basic design are added to the CAD data of the detailed design created by the attribute adding unit (144) described later.
- the arithmetic unit (140) includes the following processing units that process data input from the input / output interface (110) and data stored in the storage device (130).
- the input control unit (141) is a part that performs processing of dividing data input from the input / output device into commands, data, etc., and transferring the data to each unit of the storage device or the arithmetic unit.
- CAD data for basic design is transferred to the basic design data storage unit (131), and CAD data for detailed design is transferred to the detailed design data storage unit (132).
- the attribute extraction unit (142) extracts attribute data given to each element of the basic design data stored in the basic design data storage unit (131), and the result is sent to the element attribute data storage unit (133). This is the part to be recorded.
- the correspondence relationship extraction unit (143) is based on each element of the basic design data stored in the basic design data storage unit (131) and each element of the detailed design data recorded in the detailed design data storage unit (132). In this part, the correspondence between elements is extracted, the resulting data is created, and recorded in the correspondence data storage unit (134).
- the attribute assigning unit (144) stores detailed design data for each attribute data stored in the element attribute data storage unit (133) using the correspondence stored in the correspondence data storage unit (134). This is a part for identifying the corresponding element in the CAD data of the detailed design stored in the part (132), assigning the attribute to the element, and recording it in the merged CAD data storage part (135).
- the output control unit (150) is a part that controls the output of data stored in each unit in the storage device (130) and transfers the data to the input / output device (101).
- the main process is a process of transferring the CAD data of the detailed design to which the attribute is assigned, stored in the merged CAD data storage unit (135), to the output device.
- This data is preferably in the same format as the inputted detailed design CAD data, and can be read and displayed by the CAD system that created the detailed design CAD data.
- the present invention is not limited to the same format.
- FIG. 4 shows an example of the table configuration and data of the basic design data stored in the basic design data storage unit (131).
- (a) represents the shape portion.
- One row represents one straight line
- the column 201 in FIG. 3B represents a plurality of straight lines.
- the management number is a number for managing each element of the basic design data. Usually, a different number is assigned to each element. However, in the present invention, there is no limitation to this attaching method. In this example, a different number is assigned to each element (part) as a shape.
- the branch number is a number for distinguishing a plurality of data with the same management number. Since the column 201 is represented by data of a plurality of rows, it is distinguished by a branch number.
- the start point and the end point represent the coordinate positions of both ends of the straight line that constitutes the start point and the end point.
- Various other data can be added to the basic design data. Also, data such as a solid having a curve, surface, or volume other than a straight line can be used.
- Fig. 4 (b) shows attribute data attached to the shape.
- One line represents one item of attribute data, and the attribute item and attribute value are recorded in the element (part) having the shape indicated by the management number. For example, this indicates that the element of the management number of the pillar 201b (part) is attached with an item of assembly completion and an attribute with a value of 2012/9/10.
- Multiple attributes can be attached to an element, which can be represented as multiple lines of data.
- FIG. 5 shows an example of the table configuration and data of the detailed design data stored in the detailed design data storage unit (132).
- the table configuration is exactly the same as in the case of basic design data.
- the present invention is not limited to the case where this format is the same.
- FIG. 6 shows an example of the table configuration and data of the element attribute data stored in the element attribute data storage unit (133).
- the table configuration and data are the same as the attribute data portion of the basic design data shown in FIG. This is consistent because this expression format is a common format for representing attributes, and the present invention is not limited to this.
- FIG. 7 shows an example of the table structure and data of the correspondence data stored in the correspondence data storage unit (134).
- One row represents a set of correspondences.
- an element (part) whose basic design data management number is the column 201b and an element (part) whose detailed design data management number is the column 201c correspond to each other. This means that When there is a one-to-many, many-to-one, or many-to-many correspondence, it is expanded into individual correspondences and expressed in multiple lines.
- FIG. 8 is a diagram showing a flow of processing performed by the processing apparatus (100).
- the input / output interface (110) receives basic design CAD data from the input / output device (101) and records it in the basic design data storage unit (131) (1101).
- the input / output interface (110) receives the CAD data of the detailed design from the input / output device (101) and records it in the detailed design data storage unit (132) (1102).
- the attribute extraction unit (142) extracts the attribute data given to each element of the basic design data stored in the basic design data storage unit (131), and the result is the element attribute data storage unit (133). (1103).
- the correspondence relationship extraction unit (143) includes each element of the basic design data stored in the basic design data storage unit (131) and each of the detailed design data recorded in the detailed design data storage unit (132). The correspondence between the elements is extracted from the elements, and the resulting data is recorded in the correspondence data storage unit (134) (1104).
- the attribute assigning unit (144) uses the correspondence relationship stored in the correspondence relationship data storage unit (134) for each attribute data stored in the element attribute data storage unit (133) to perform detailed design.
- the corresponding element in the CAD data of the detailed design stored in the data storage unit (132) is specified, and the attribute is given to the element and recorded in the merged CAD data storage unit (135) (1105).
- the output control unit (150) sends the CAD data of the detailed design to which the attribute is stored, stored in the merged CAD data storage unit (135), via the input / output interface (110). (1106).
- FIG. 9 is a diagram showing a detailed flow of the processing (1104) performed by the correspondence extraction unit (143).
- basic design data is read from the basic design data storage unit (131) (1201).
- the detailed design data is read from the detailed design data storage unit (132) (1202).
- a pair of elements included in the basic design data and elements included in the detailed design data is created (1203), and it is determined whether there is a spatial overlap between the two elements (1204). As a result, if there is an overlap, the management number of the elements constituting the pair is recorded in the correspondence data storage unit (134) (1206).
- the processing from 1203 to this point is performed for all pairs of combinations (1207).
- the basic design data and the detailed design data should be arranged in advance so that the corresponding elements have the same coordinates and the same direction, but if they are different, the coordinates should be changed before performing this process.
- a conversion process can be performed to match.
- this determination method can be used not only when the corresponding elements are one-to-one, but also when one-to-many, many-to-one, and many-to-many. Even if the spatial overlap is strictly determined, an element that does not correspond rarely may have an overlap. Therefore, depending on the application, a method for instructing the user to delete extra attributes is also provided.
- Judgment of the presence or absence of spatial overlap can be performed by processing by the method of “interference check” widely known in the field of graphic information processing. Interfering means that there is a spatial overlap.
- the processing can be simplified by using a simple method. For example, in the range where each element exists, the maximum coordinate value and the minimum coordinate value in the orthogonal three-axis directions in the three-dimensional space, for example, the x, y, and z directions are obtained, and the presence or absence of spatial overlap of the rectangular parallelepiped determined by these values However, the determination of the actual element can be substituted.
- FIG. 10 is a diagram showing a detailed flow of the process (1105) performed by the attribute assigning unit (144).
- element attribute data stored in the element attribute data storage unit (133) is read (1301).
- one piece of data is sequentially taken out (1302), and data whose management number is the same as the basic design data item of the correspondence data stored in the correspondence data storage unit (134).
- Search is performed (1303). For example, when the first data “pillar 201b, assembly completed, 2012/9/10” shown in FIG. 6 is extracted, data for “pillar 201b” is searched in the basic design data column of FIG. In this search, there is a case where there is no corresponding data, or there are cases where a plurality of searches are performed.
- the attribute item and attribute value of the data are recorded in the element of the management number corresponding to the detailed design data (1305).
- the detailed design data “pillar 201c” corresponds to the element having the management number “pillar 201c” in the detailed design data, the attribute item “assembly completed” and the attribute value “2012/9/10”. Record the data.
- the processing from 1302 to this is performed for all element attribute data (1306).
- the attribute data may be leaked. Therefore, the attribute data of the elements of the basic design data to which no attribute data is added is presented to the user. An output means may be provided separately. At that time, there is also a method of copying the element data of the original basic design data into the detailed design data including the shape part and the attribute part in order to present the part to which the data has been added. In this method, even if some elements are leaked in the detailed design, the leaked elements become clear. In addition, when recording attribute data in the detailed design data, it is also preferable to omit the recording if data of the same attribute item and attribute value already exists. This is to prevent redundant data from being recorded when the same attribute has already been recorded in the detailed design stage.
- FIG. 11 shows a table configuration of merged data and an example of data recorded in the merged CAD data storage unit (135) when the processing described so far is performed on the data used for the description.
- the table configuration is exactly the same as in the case of basic design data and detailed design data.
- the shape part of (a) is not different from the detailed design data of FIG.
- the attribute portion of (b) is data obtained by adding the attribute portion of the basic design data of FIG. 4 (b) to the attribute portion of the detailed design data of FIG. 5 (b).
- the following instructions and results are output to the user.
- the first basic design data is read (1101) and the next detailed design data is read (1102)
- a message for allowing the user to specify each data is output.
- These data are preferably specified by a name or the like, or may be selected from candidates. It may be recorded in the apparatus, or may be recorded in a remote place and read via a communication path.
- FIG. 12 shows an example of the result displayed on the screen when the merged data is output at the end of the process (1106 in FIG. 8).
- (A) is an example of the state in which the merged attribute data is displayed together with the shape data. The same applies to (b), but here, attribute data is displayed in a list.
- the display color of the shape data to which the attribute is attached is changed.
- the display color of the attribute data attached to the shape data is changed. If the button displayed in the delete column is designated, unnecessary attribute data can be deleted.
- the merged CAD data is displayed on an input / output device connected to the processing device (100). However, after the merged CAD data is output as a file and transferred to a CAD system or the like, the CAD data is displayed. A form in which such a display can be obtained by the system is also preferable.
- the present embodiment described above is a means for reading a plurality of three-dimensional CAD data in a three-dimensional CAD data processing apparatus having a component which is a plurality of elements and attribute data associated with each of the plurality of components.
- an attribute extraction unit 142 that extracts attribute data from basic design data that is first CAD data, and position information included in the basic design data and detailed design data that is second CAD data
- a correspondence extracting unit 143 for extracting the correspondence an attribute adding unit 144 for adding the attribute data extracted from the basic design data to the detailed design data based on the extracted correspondence, and adding the attribute data
- An output control unit 150 that outputs the processed data is provided.
- the means for copying to the CAD data is provided. According to such a processing apparatus, it is possible to improve the efficiency of the CAD data merging work designed by a plurality of persons in charge. Further, it is possible to prevent omissions and errors in the attribute merging work between CAD data.
- attribute data is associated with “parts that are a plurality of elements”, but naturally there is another “multiple parts” that are not associated with attribute data. . Needless to say, the above effects can be obtained.
- the correspondence data is extracted after extracting the attribute data.
- this order has no dependency, and the same effect can be obtained in the reverse order.
- this invention is not limited to the above-mentioned Example, Various modifications are included.
- the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described.
- a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment.
- each of the above-described configurations, functions, processing units, processing means, and the like may be realized by hardware by designing a part or all of them with, for example, an integrated circuit.
- each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by a computer processor.
- Information such as programs, tables, files, measurement information, and calculation information for realizing each function is stored in a recording device such as a memory, a hard disk, or an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD. Can be put in. Therefore, each process and each configuration can realize each function as a processing unit, a processing unit, a program module, and the like.
- processor 101 input / output device 110 input / output interface 130 storage device 131 basic design data storage unit 132 detailed design data storage unit 133 element attribute data storage unit 134 correspondence data storage unit 135 merged CAD data storage unit 140 arithmetic unit 141 input control Unit 142 attribute extraction unit 143 correspondence relationship extraction unit 144 attribute assignment unit 150 output control unit
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Abstract
Description
入出力装置(101)は,基本設計のCADデータおよび詳細設計のCADデータの入力,出力の指示,作成データの出力などを行なうものであり,計算機の一般的な入出力装置であるキーボード,マウス,ディスプレイ,プリンタなどで構成するのが好ましい。ただし,装置構成はこれに限定するものではない。
101 入出力装置
110 入出力インタフェース
130 記憶装置
131 基本設計データ記憶部
132 詳細設計データ記憶部
133 要素属性データ記憶部
134 対応関係データ記憶部
135 併合CADデータ記憶部
140 演算装置
141 入力制御部
142 属性抽出部
143 対応関係抽出部
144 属性付与部
150 出力制御部
Claims (8)
- 複数の要素と、前記複数の要素のそれぞれに対応付けられた属性データを有する3次元CADデータの処理装置において、
複数のCADデータを読み込む手段と、
第1のCADデータから前記属性データを抽出する属性抽出手段と、
前記第1のCADデータと第2のCADデータに含まれる位置情報を利用して対応関係を抽出する対応関係抽出手段と、
抽出された前記対応関係にもとづいて、前記第2のCADデータに前記第1のCADデータから抽出された属性データを付与する属性付与手段と、
属性データを付与されたデータを出力する手段を備えたことを特徴とする3次元CADデータの処理装置。 - 請求項1の3次元CADデータの処理装置において、
前記対応関係抽出手段は、前記要素の空間的な重なり領域の有無を判定することを特徴とする3次元CADデータの処理装置。 - 請求項2の3次元CADデータの処理装置において、
前記対応関係抽出手段は、前記要素の空間的な重なり領域の有無を判定する前に、対応する要素の座標が合致するように座標変換処理を行うことを特徴とする3次元CADデータの処理装置。 - 請求項1から3の何れかの3次元CADデータの処理装置において、
前記属性付与手段が属性データを付与しなかった前記第1のCADデータの要素の属性データを出力する手段を備えたことを特徴とする3次元CADデータの処理装置。 - 複数の要素と、前記複数の要素のそれぞれに対応付けられた属性データを有する3次元CADデータの処理方法において、
複数のCADデータを読み込み、
第1のCADデータから前記属性データを抽出し、
前記第1のCADデータと第2のCADデータに含まれる位置情報を利用して対応関係を抽出し、
抽出された前記対応関係にもとづいて、前記第2のCADデータに前記第1のCADデータから抽出された属性データを付与し、
属性データを付与されたデータを出力することを特徴とする3次元CADデータの処理方法。 - 請求項5の3次元CADデータの処理方法において、
前記要素の空間的な重なり領域の有無を判定することで対応関係を抽出することを特徴とする3次元CADデータの処理方法。 - 請求項6の3次元CADデータの処理方法において、
前記要素の空間的な重なり領域の有無を判定する前に、対応する要素の座標が合致するように座標変換処理を行うことを特徴とする3次元CADデータの処理方法。 - 請求項5から7の何れかの3次元CADデータの処理方法において、
属性データを付与しなかった前記第1のCADデータの要素の属性データを出力することを特徴とする3次元CADデータの処理方法。
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JP2017151538A (ja) * | 2016-02-22 | 2017-08-31 | 株式会社コスモ・ソフト | 設備部材情報補填装置、設備部材情報補填方法及びプログラム |
JP2020003901A (ja) * | 2018-06-26 | 2020-01-09 | ネットイーグル株式会社 | Cadデータ共有システム |
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JP2002215702A (ja) * | 2001-01-22 | 2002-08-02 | Nec Corp | 接続ピン番号対応データ生成システム |
JP2009116743A (ja) * | 2007-11-08 | 2009-05-28 | Hitachi Ltd | 3次元cadシステム |
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JP2002215702A (ja) * | 2001-01-22 | 2002-08-02 | Nec Corp | 接続ピン番号対応データ生成システム |
JP2009116743A (ja) * | 2007-11-08 | 2009-05-28 | Hitachi Ltd | 3次元cadシステム |
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JP2017151538A (ja) * | 2016-02-22 | 2017-08-31 | 株式会社コスモ・ソフト | 設備部材情報補填装置、設備部材情報補填方法及びプログラム |
JP2020003901A (ja) * | 2018-06-26 | 2020-01-09 | ネットイーグル株式会社 | Cadデータ共有システム |
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US20150363514A1 (en) | 2015-12-17 |
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