JP2003067443A - Supporting method and device for manufacturing three- dimensional structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a supporting method and a supporting device for manufacturing a three-dimensional structure capable of giving a concrete form to a design of clothing and accessories, creation of a paper pattern and an image of them being worn on a body without actually making clothes. SOLUTION: The present invention establishes a spot of modification of a shape on the surface of a model of a structure on a computer screen, creates a two-dimensional shape to be inserted into the spot of modification or a two-dimensional shape to be cut off from the spot of modification, creates information of joining after re-composing the model of the structure with at least one or more fine elements and joins appropriate spots of the model of the structure according to the joining information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of designing clothing accessories such as clothes, covers that require the production of paper patterns such as futons and pillows, and a three-dimensional product shape design such as car seats. The present invention relates to a three-dimensional structure manufacturing support method and manufacturing support apparatus suitable as a method for efficiently creating a pattern or a part suitable for manufacturing a product after design.

[0002]

2. Description of the Related Art With the recent development and popularization of three-dimensional CAD systems, the conventional work performed while imagining a three-dimensional shape with a two-dimensional drawing was performed using a three-dimensional model itself.
It has been changed so that it will be created later on the basis of the shape handled on D. One of the problems of three-dimensional CAD is to display and operate an object that is originally three-dimensional on a two-dimensional display. Its handling is relatively easy for mechanical parts made of simple plane combinations, but for products made of many curved combinations, it is necessary to master the operation to obtain a desired design shape. Above all, it is difficult to change the design of a three-dimensional object on the screen as desired because the shape of an object made of a flexible material such as clothes and car seats can change freely after assembly. It was

In the case of clothing and the like, the product is made up of a combination of several flat parts. The figure that represents the shape of the part is called a pattern, and the basic method of creating this pattern is to put a paper or cloth on the surface of the target three-dimensional sample model, write a mark or line on the object, Was developed into a plane and a new pattern was created. In the field of clothing, there are many ways to create clothes patterns of various designs by using empirical rules and geometrical rules based on patterns obtained by past methods in order to improve productivity. Invented. In such a situation,
Various attempts have been made to make a correlation between a pattern and a three-dimensional shape so that the shape change of the other can be automatically calculated from the operation of the shape of both. .

For example, as an attempt for a three-dimensional garment designing method for clothes and a pattern making method linked with it, there is a Japanese Patent No. 2614691 "Method and apparatus for visualizing assembling shape of pattern". In this patent, a method of reflecting a three-dimensional deformation on a template by preliminarily correlating the relationship between the three-dimensional three-dimensional shape and the two-dimensional template for each part. However, since it is not possible to respond to free deformation other than the rules of deformation attached to clothes and patterns,
It is convenient to change a specific part to the shape already prepared, but when creating a completely new one, it is difficult to create freely, such as creating a new transformation rule and inputting it. There is a problem.

As another method that enables free deformation of a three-dimensional structure such as clothes, FFD (Free Form Deformation) method, which is one of the morphing techniques of CG, can be considered. The FFD method is a method in which a control point is set in a deformation target space including a deformation target, and the target three-dimensional structure is deformed by moving and deforming the control point. For this, TWSederberg, SRParr
y: Free-Form Deformation of Solid Geometric Model
s, Proceedings of ACM SIGGRAPH'86 in ComputerGraphi
cs, Vol 20, No. 4, p 151-160, 1986. With this method, the number of control points must be increased as the shape becomes more complicated, and thus the operation for obtaining an arbitrary shape is difficult. Further, since it is difficult to reflect the deformed result on the two-dimensional pattern, no practical and easy-to-use technical development has been made using this method.

[0006]

As described above, the conventional method for deforming a three-dimensional structure has the following problems. The first method using the data cooperation between the three-dimensional structure and the pattern requires the setting work of the part that can be operated in advance in the three-dimensional shape. In other words, it is not possible to create a free shape by deforming at any place, but it is necessary to prepare data for that number by predicting the places that are likely to be deformed, which may reduce the degree of freedom in design. Is.

In the method using the second control point,
Although the degree of freedom of deformation is great, the operation for obtaining an arbitrary shape is complicated in the operation on a two-dimensional screen, and although it can be operated by a person skilled in the field of CG, it has been conventionally performed for clothes designers and the like. It is far from performing creative work with the same image as the work, and there is the problem that design work that makes use of the sensations cultivated is difficult. In addition, an effective reflection method for two-dimensional patterns has not been established.

Therefore, the present invention proposes a new method for deforming a three-dimensional object in a two-dimensional display. With this method, even a person who is not very experienced in designing with a computer can design a three-dimensional structure, and based on the information obtained when the deformation is performed, the experience of a conventional worker is utilized. An object of the present invention is to provide a manufacturing support method and a manufacturing support apparatus using a design correction means of a three-dimensional structure capable of obtaining a two-dimensional pattern.

[0009]

In order to solve the above-mentioned problems, a method for supporting the manufacture of a three-dimensional structure according to the present invention includes a part of a shape on an arbitrary surface of a structure model expressing the three-dimensional structure. A step of setting a change point designating line for changing, a step of cutting the surface of the structure model based on the change point designating line, and creating a two-dimensional insertion shape to be inserted into the cut part. A step of reconstructing the structure model including the incision portion and the insertion shape by at least one or more minute elements to create joining information between the incision portion and the insertion shape; and the incision portion and the insertion shape. And joining based on the joining information.

In order to solve the above-mentioned object, the method for supporting the manufacture of a three-dimensional structure according to the present invention is designed to change a part of the shape on an arbitrary surface of a structure model expressing the three-dimensional structure. Setting a change point designating line, creating a two-dimensional cut shape to be cut from the line writing section based on the change point designating line, and removing the cut shape on the surface of the structure model And reconstructing the remaining portion by at least one or more microelements, creating joining information for removing the cut shape on the surface of the structure model to close the remaining portion, and the structure. And a step of joining the cut edges remaining after removing the cut shape of the surface of the model based on the joining information.

Further, in order to solve the above-mentioned object, the method for supporting the manufacture of a three-dimensional structure according to the present invention is a method for manufacturing a three-dimensional structure in which two-dimensional parts which are at least one or more planar objects are joined together. A manufacturing support method, comprising the step of setting a change point designation line for changing a part of a shape on an arbitrary surface of a structure model expressing the three-dimensional structure, and based on the change point designation line Incising the surface of the structure model to create a two-dimensional insertion shape to be inserted into the incision, and the structure model including the incision and the insertion shape having at least one or more microelements. By reconstructing, the step of creating the joining information between the incision and the insertion shape, the step of joining the incision and the insertion shape based on the joining information, the shape of the desired structure model After getting It is characterized in that a step of deforming the shape of the two-dimensional components based on the information of the insertion shape and the changed portion specified line.

Further, in order to solve the above-mentioned object, the method for supporting the manufacture of a three-dimensional structure according to the present invention is a three-dimensional structure in which two-dimensional parts which are at least one planar object are joined together. And a step of setting a change point designating line for changing a part of the shape on an arbitrary surface of the structure model expressing the three-dimensional structure; A step of creating a two-dimensional cut-out shape to be cut out from the line drawing part based on the above, and a portion remaining after removing the cut-out shape on the surface of the structure model is constituted by at least one microelement. Fixing, removing the cut shape on the surface of the structure model to create joining information for closing the remaining portion, and removing the cut shape on the surface of the structure model and cutting the remaining cut edges together. Joining And a step of deforming the shape of the two-dimensional part based on the information of the change point designating line and the insertion shape after obtaining a desired shape of the structure model. It is characterized by.

On the other hand, in order to achieve the above object, a three-dimensional structure manufacturing support apparatus of the present invention is a manufacturing support apparatus for designing the shape of a three-dimensional structure, and a structure expressing the three-dimensional structure. Change point designation means for setting a change point designation line for changing a part of the shape on an arbitrary surface of the body model, and incising the surface of the structure model based on the change point designation line, and incising A modified drawing shape designating means for creating a two-dimensional insertion shape to be inserted into the part, a structure model including the incision portion, and the insertion shape are reconfigured by at least one or more microelements to form the incision portion. A microelement dividing unit that creates joining information between the insertion shape and the incision portion and the insertion shape based on the joining information 3
And a three-dimensional structure shape deforming means.

In order to achieve the above object, a three-dimensional structure manufacturing support apparatus of the present invention is a manufacturing support apparatus for designing the shape of a three-dimensional structure, and a structure expressing the three-dimensional structure. A change point specifying means for setting a change point specifying line for changing a part of the shape on an arbitrary surface of the body model, and a two-dimensional cut to be cut from the line writing section based on the change point specifying line A modified graphic shape designating means for creating a shape, and a portion left on the surface of the structure model after removing the cutout shape is reconfigured by at least one or more microelements, and the modified shape is specified on the surface of the structure model. Minute element dividing means for creating joining information for removing the cutout shape and closing the remaining portion, and joining the resection edges remaining after removing the cutout shape of the surface of the structure model based on the joining information 3D It is characterized in that a granulated material deformation means.

Further, in order to achieve the above-mentioned object, the manufacturing support system for a three-dimensional structure of the present invention is a three-dimensional structure formed by joining at least one or more two-dimensional parts which are planar objects. A manufacturing support device for designing a shape, comprising a change point designating means for setting a change point designating line for changing a part of a shape on an arbitrary surface of a structure model expressing the three-dimensional structure, A modified figure shape designating unit that cuts the surface of the structure model based on the modification point designation line and creates a two-dimensional insertion shape to be inserted into the cutout section, and a structure model including the cutout section. A microelement dividing unit that reconfigures the insertion shape with at least one or more microelements to create joint information between the incision portion and the insertion shape, and the incision portion and the insertion shape based on the joint information. To join 3 Original structure shape deforming means, and two-dimensional part shape deforming means for deforming the shape of the two-dimensional part based on the information of the change point designating line and the inserted shape after obtaining the shape of a desired structure model. It is characterized by having and.

Further, in order to achieve the above object, the three-dimensional structure manufacturing support apparatus of the present invention is a three-dimensional structure formed by joining at least one or more two-dimensional parts which are planar objects. A manufacturing support device for designing the shape of
Change point designation means for setting a change point designation line for changing a part of the shape on an arbitrary surface of the structure model expressing the three-dimensional structure, and the line entry based on the change point designation line A modified graphic shape designating means for creating a two-dimensional cut shape to be cut from a part, and at least one portion remaining on the surface of the structure model after removing the cut shape.
Minute element dividing means for reconstructing the surface of the structure model by reconstructing the structure model with one or more minute elements and creating joining information for closing the remaining part, and cutting off the surface of the structure model Three-dimensional structure shape deforming means for joining the resection sides remaining after removing the shape based on the joining information, and information on the change point designation line and the insertion shape after obtaining the shape of a desired structure model And a two-dimensional part shape deforming means for deforming the shape of the two-dimensional part based on the above.

According to a preferred aspect of the present invention, there is provided software including a program for causing a computer to execute each step of the method for supporting the manufacture of the three-dimensional structure.

According to a preferred aspect of the present invention, there is provided a computer-readable storage medium in which the above software is stored.

According to a preferred aspect of the present invention, there is provided a system in which a computer in which the above software is stored can be used via a network.

According to a preferred aspect of the present invention, there is provided a system capable of reusing the data of a three-dimensional structure created by the above software via a network.

According to a preferred aspect of the present invention, there is provided a three-dimensional structure manufactured by the above-described method for supporting manufacturing of a three-dimensional structure.

According to a preferred aspect of the present invention, there is provided a two-dimensional part produced by the method for supporting the production of a three-dimensional structure.

According to a preferred aspect of the present invention, there is provided a three-dimensional structure ordering method for ordering the two-dimensional part creation data created by the three-dimensional structure manufacturing support method as order data. .

The terms used in the present invention will be explained below.

The three-dimensional structure in the present invention refers to a three-dimensional structure which is composed of at least one or more two-dimensional parts and which is formed by joining or assembling parts. For example, clothes, shoes, bags, etc. made by sewing a plurality of parts together correspond to this.

The two-dimensional part in the present invention is a part that constitutes a three-dimensional structure. Also, for this, 3
Also included are parts that are partially inserted into the three-dimensional structure to deform the three-dimensional structure. These two-dimensional parts may be flat or curved objects.

The change point designation line in the present invention is a line written on the surface of the three-dimensional structure and used as a guideline for deforming the shape by cutting or shrinking a part of the three-dimensional structure. Is.

The insertion shape in the present invention refers to a part such as a polygon or an ellipse to be inserted into the changed portion designation line portion. When inflating the three-dimensional structure, for example, the shape of a triangle or a rhombus is sandwiched between the designated line portions to inflate the portion. The insert part is also included in one of the two-dimensional parts described above.

The cut-out shape in the present invention is an area cut out around the changed portion designation line. This shape is polygonal or elliptical. A specified area, for example, a triangle or the like, is cut off around a specified cutting line, and the holes are joined to reduce the shape.

In the present invention, the three-dimensional structure manufacturing support device gives virtual mechanical material properties to each minute element of the structure model, and based on the virtual mechanical material properties of the structure. It is preferable to have a calculation means for calculating the shape of the structural model.

In the present invention, after the step of joining the incision portion and the insertion shape based on the joining information, or by removing the cut shape on the surface of the structure model, the resection sides left are described above. After the step of joining based on the joining information, a virtual mechanical material property is given to each minute element of the structure model, and the shape of the structural model is determined based on the virtual mechanical material property of the structure. By performing the recalculation, the changed shape can be calculated more accurately even when the shape of the three-dimensional structure changes due to the influence of an external force such as clothes.

The mechanical material property in the present invention is given to a two-dimensional part or a two-dimensional element constituting the three-dimensional structure in the present invention in calculation, and a three-dimensional structure is formed. It means the difficulty of bending when a part bends across a line between elements as it goes. For example, elastic modulus, flexural rigidity, and shear stress are used as the physical property value indicating the difficulty of bending. The larger this value is, the more force is required to bend it, but
The resilience to return to the original level also increases.

[0033]

BEST MODE FOR CARRYING OUT THE INVENTION An example in which clothes are applied as a three-dimensional structure to a three-dimensional structure manufacturing support apparatus according to the present invention will be described below. A schematic configuration diagram of the apparatus is shown in FIG. In this embodiment, 101 is a personal computer, 1
Reference numeral 02 is a keyboard, 103 is a mouse, 104 is a display, 105 is a printer, and 107 is a hard disk device. As the input device, the three-dimensional input device 106 may be used instead of the mouse 103. The three-dimensional input device will be described later.

In the hard disk device 107, the three-dimensional structure shape information storage means 108, the two-dimensional part information storage means 110, the material information storage means 111, the human body shape information storage means 112, and the two-dimensional part correction method storage means 125. Is included. In this embodiment, these storage means are realized by using a general-purpose relational database.

The three-dimensional structure shape information storage means 108 stores the shape data of the three-dimensional structure completed by the assembly calculation of the three-dimensional structure design and the two-dimensional parts, and the attribute data related to the design, such as a design code. Is remembered.

The two-dimensional part information storage means 110 has three
The attribute information and the shape information regarding the two-dimensional parts constituting the design of the three-dimensional structure are stored. As the attribute information, a component code, a material code corresponding to the component, and a component type are stored in this embodiment.

The material code, material attribute information, and material mechanical characteristic information are stored in the material information storage means 111. The material attribute information is the material code in this embodiment, and the mechanical properties of the material are KES (Kawabata's Evaluation System) widely used in the textile industry.
for fabric) characteristics.

The human body shape information storage means 112 stores the human body shape of the body type input from the calculation data input means 113. FIG. 17 shows an example of a human body model with a standard body type.

The two-dimensional part correction method storage means 125 stores past work knowledge regarding the two-dimensional part correction method. This is for the worker to be able to repeatedly use his / her preferred correction method and for the beginner to use the knowledge of an experienced person. Contents,
The name of the two-dimensional part to be corrected, the part of the three-dimensional structure, the shape of the insert or cut for deformation, the position and size of the two-dimensional part, and the correction point and method of the two-dimensional part are registered.

The data stored in each of the above storage means is
From the storage means to the personal computer 1 when the device is used
01 is loaded by loading it into the memory. In addition, it may be input by a keyboard, a shape measuring device, or the like. As described above, in the present invention, loading data into a computer so that the data can be processed in the computer is referred to as “data input”.

Next, various functions provided by the personal computer 101, specifically, the central processing unit and the general-purpose volatile memory will be described.

In the personal computer 101, calculation data input means 113, wearing calculation means 114, change point designation means 115, changed figure shape designation means 116, minute element division means 117, three-dimensional structure shape transformation means 118,
Two-dimensional part CAD output means 119, two-dimensional part correction method designating means 120, two-dimensional part shape editing means 12
A one- and two-dimensional part automatic processing means 122 and a two-dimensional part data input / output means 123 are included.

The function of each means will be briefly described below. Detailed description will be given later together with the flowchart.

The calculation data input means 113 inputs the shape data of the two-dimensional part which is the source of the three-dimensional structure.
As another input function, for example, when the three-dimensional structure is clothes, it is preferable to have a function of inputting data of a human body shape necessary for wearing.

The wearing calculation means 114 has a function of calculating a wearing state of a three-dimensional structure and a function of calculating a state in which an external force such as gravity is applied to the three-dimensional structure. The former wearing condition calculation function assembles two-dimensional parts to create three-dimensional structure data, adds new two-dimensional parts and joins them, and rejoins specified parts on the three-dimensional structure. It has a function that can When the three-dimensional structure is clothes, it is preferable to be able to specify which part of the human body to wear the clothes by using an input device such as the mouse 103. As a result, it is possible to freely calculate the wearing state. In addition, the function of calculating the state in which external force is applied is the function of calculating the wearing state of clothes when the material is changed or the design of the three-dimensional structure is changed, and the silhouette in the actual use state Can be confirmed.

The changed portion designating means 115 has a function of inputting a line to a portion to be deformed on the surface of the three-dimensional structure. The operator can write a line on the surface of the three-dimensional structure displayed on the display 104 by using the mouse 103 or the three-dimensional input device 106 and set a change point designation line. When the three-dimensional structure is created based on the pattern which is a two-dimensional part, the line on the three-dimensional structure is specified by writing the change point designation line on the two-dimensional part. Is also good.

The modified figure shape designating means 116 has a function of designating the shape and size when the three-dimensional structure is inserted or cut for the purpose of deformation to join the space portions. Also, specify whether to insert or cut the shape.

When the three-dimensional structure is expanded, the minute element dividing means 117 includes the specified change point specifying line 2
The inside of the dimensional part is divided into polygonal minute elements, and the insertion shape is also element-divided so that the shape designated by the modified figure shape designating means 116 and the number of element divisions of the joining portion of the cutting line match. Then, the joining information of the insertion part and the node on the line designated by the changed portion designation means 115 is created at the same time.

To shrink a part of the three-dimensional structure,
The specified cut shape is overlapped on the two-dimensional part, a node is generated at the intersection of the overlaps, and the internal element is removed.
At the same time, joining information for joining opposite sides of the created space is created.

The three-dimensional structure shape deforming means 118 adds a changed figure shape to the portion designated by the above-mentioned changed portion designating means 115, or cuts it to join the perforated portion to the three-dimensional structure. It has the function of transforming the body design. After the transformation of the three-dimensional structure is completed, the 3
The mounting state of the three-dimensional structure is calculated, and the final shape when gravity is applied is obtained. This allows you to check the image of the change in shape after deformation.

The two-dimensional part CAD output means 119 has a function of outputting the information of the changed portion designation line, the changed figure shape, and the size inputted for the deformation process to the CAD together with the pattern data.

The two-dimensional part correction method designating means 120 is
2 based on the size and position information of the inserted or cut shape
Specify how to deform a two-dimensional part or peripheral parts on a three-dimensional drawing. The point here is that instead of adding the inserted shape to the two-dimensional part as it is, there are some correction methods such as adding it by dispersing it on some two-dimensional parts. Two-dimensional part correction method designating means 12 based on the insertion location and shape
0 is a method close to what the operator thinks, by extracting some candidates that are considered to be effective from the correction methods stored in the two-dimensional part correction method storage means 125 and presenting them to the operator. Can be selected. Here, when considering a new correction method, the operator may edit the shape independently by using the two-dimensional part shape editing means 121.
This editing method is a two-dimensional part correction method storage means 12 as appropriate.
5 can be added.

The two-dimensional part shape editing means 121 has a function of editing the shape data of the two-dimensional part.
It is one basic function of the three-dimensional CAD.

The two-dimensional part automatic processing means 122 has a function of combining the functions of the two-dimensional part shape editing means 121 and automatically performing a plurality of operations to edit the shape. This function is also one of the functions of the two-dimensional CAD.

Information inherited from the two-dimensional part CAD output means 119 and the two-dimensional part correction method designating means 120.
Two-dimensional parts automatic processing means 12 using the method specified in
2 modifies the shape of the template to obtain the shape information of the two-dimensional part which is the basis for making the three-dimensional structure.

The two-dimensional part data input / output means 123 is
It has a function of storing data relating to a two-dimensional component in the two-dimensional component information storage means 110 and outputting the data from that to a file or the like.

A two-dimensional part CAD program is provided with a two-dimensional part shape editing means 121, a two-dimensional part automatic processing means 122, a two-dimensional part data input / output means 123 and a two-dimensional part information storage means 110. (Two-dimensional part shape changing means).

These series of functions can be sequentially confirmed on the display 104 when the operator operates, and the calculation result can be output to the printer device or the like, or can be stored in the hard disk device 107. . In this case, for example, this output result can be used as input data of another analysis device. The device of the present embodiment is realized as a combination of computer software and a computer device distributed through a wired or wireless distribution channel such as a recording medium such as a CD-ROM, a floppy disk, an optical disk or a network.

Here, an outline of the operation of this embodiment is shown in FIG.
This will be described with reference to the flowchart of. 3 in the present invention
The process of the designing method of the three-dimensional structure shape is roughly divided into four steps.

First, in step 801, the three-dimensional structure data is prepared using the calculation data input means 113 and the wearing calculation means 114.

In this embodiment, two methods can be used depending on the difference in input data.

The first is a case where the input data is only a two-dimensional part. In this case, first, two-dimensional part data is input (step 901). In this embodiment, the input two-dimensional part data is the two-dimensional part CA.
Use the one output from D.

The input shape data may be expressed by a free-form curve notation such as NURBS which is generally well known as a method of expressing a shape, or may be a coordinate input value by a digitizer. In these cases, before proceeding to the next assembling step (step 902), the minute element dividing means 117 or the like is used to convert into a format of a two-dimensional part constituted by nodes and elements and joining data of parts. In addition to the numerical information that represents the shape of the part, the data of the part that is input includes all data related to the part attributes such as the material code used and the information that indicates the direction of the thread in the case of clothing. Is desirable.

The second case is a case where both the assembled three-dimensional structure data to which no external force is applied and the original two-dimensional part data are input data. In this case, the next assembling step is skipped and the pedestal data is input (step 903).

An assembly calculation for assembling the two-dimensional parts input here and converted into minute elements into a three-dimensional structure is performed. As an assembling method, the method of Japanese Patent No. 1984093, the method of Japanese Patent Application Laid-Open No. 10-134095, or the method of Japanese Patent Application Laid-Open No. 10-124538 can be used. According to this method, a force for attracting each other is generated between the nodes based on the joining information of the nodes formed by the minute element dividing means and the nodes constituted by the elements to perform the assembly.

When the input three-dimensional structure is clothes,
In order to reproduce the state of wearing on the human body which is a covered object, pedestal data is input (step 903), and the wearing state is calculated using the wearing calculation means 114. The human platform data used here may be human body data read by a three-dimensional scanner or commercially available human platform data, but a model in which a surface shape is formed by a collection of polygonal polygons is preferable. For the method of dividing into small elements when the data is a point cloud, see "Automatic reconstruction of polygon and curved surface models from point cloud data using the voluming method".
(Proceedings of the 13th NICOGRAPH / MULTIMEDIA Paper Contest p7
0-79, 1997) and so on, so use these to convert to polygonal polygons.

The calculation for attaching the clothing data to the stand data (step 904) is carried out by the present applicants in Japanese Patent Laid-Open No. 2000-003.
It is conceivable to use the method disclosed in Japanese Patent No. 383. This method properly calculates the wearing condition by giving information on which part of the human body to wear the clothes.
As a result, the wearing states of the human body model and the clothing model can be calculated.

By using this calculation method, it is possible to check not only the upright posture, but also the space in which the arm is raised, etc., which is useful for making more practical patterns, and for designing different designs. It is also easy to perform work such as correction to.

This is the stage of data preparation (step 801) until the design is transformed. Next, at step 802, the three-dimensional structure data is deformed using the three-dimensional structure shape deforming means 118 to create a three-dimensional structure shape of a desired design.

In order to create a desired design, first, at step 905, a portion to be deformed is designated. Specifically, the change point designation means 115 is used to
A change point designation line that indicates a point to be deformed on the surface of the three-dimensional structure is input. However, it is difficult to draw a desired line on a three-dimensional structure using an input device such as a keyboard or a mouse while watching the display on a display, which is generally a two-dimensional space.

Therefore, the following two methods can be used in this embodiment. The first is a method of writing a line using a geodesic line, and the second is to write a line on the two-dimensional part that is the source of the three-dimensional structure and reflect it on the surface of the three-dimensional structure. It is a method to let.

A method of entering the first geodesic line will be described. A geodesic curve is a curved line or a line connecting the shortest distances on a plane. For the method of drawing a line on a curved surface using a geodesic curve, "On the method of determining the geodesic curve on a membrane curved surface in a membrane structure" Nobuyuki Ataka, Yuichi Kozuka, Proceedings of the Annual Meeting of the Architectural Institute of Japan, pp.1171-1172, 1985 Seen in.

In this method, a start point and an end point are designated to draw a geodesic line on a three-dimensional structure, and a tentative deformation designation line is drawn on the three-dimensional structure by searching for the shortest distance connecting the two points. , A method of obtaining a desired line by modifying the line was used. This method can reduce the manual work of drawing a line on the object.

As a second method, a method of drawing a changed portion designation line on a two-dimensional part can be considered. When this method is used, it is premised that the node and element information are shared with the two-dimensional part that is the basis of the three-dimensional structure. It is easy to reflect the line written on the two-dimensional part in the three-dimensional structure which is a solid from the relationship between the nodes and the elements. The merit of this method is that it is easy to work because the lines are written on the two-dimensional part.

Besides this, as a method for drawing a line on the three-dimensional structure, a method of directly drawing on the three-dimensional structure using a three-dimensional input device is also conceivable. Since this method can specify a point on the surface of a three-dimensional structure, it is easier to process than a general mouse. As a three-dimensional input device, a method of inputting a deformation designation line by using a tactile tool called a phantom (a product of Sensable Technology Co., Ltd.) can be considered. This device can be moved in 3D space and the operator can feel the reaction force when touching the model, so it is possible to more intuitively specify a point on 3D clothes. is there. Regarding the method of deforming an object using this device, "Fundamental Study on Interactive Clothes Design in Clothes Virtual Space" Atsushi Kitawaki, Yoshinari Kameda, Kokaku Kadosho, Michihiko Mino, Katsuo Ikeda, Human Interface Research Group Nov, 1999 There is another method.

Next, in step 906, the shape used for the deformation is input. First, specify whether to insert or cut the shape into the three-dimensional structure. Next, the shape is selected and the size is specified. When inserting or cutting in the center of a two-dimensional part, the shapes are preferably symmetrical shapes 1a to 1f (insertion shape or cutout shape) as shown in FIGS. If it is added to the joining line of No. 2, it may be any shape 2 that matches the shape of the component 11 as shown in FIG.

The shape is designated on the two-dimensional plane, not on the surface of the three-dimensional structure. When inserting a new part in the central part of the two-dimensional part, FIG.
Selection is made from symmetrical shapes 1a to 1f such as a triangle, a rhombus, and a bell shape as shown in (f). Next, the length of the side of the inserted shape is made to be the same as the length of the change point designation line. Therefore, what can be specified by the shape is the length in the width direction of the shape to be inserted. When the inserting place is the joint portion of the two-dimensional component 11, as shown in FIG. 4, the shape 2 to be added is designated by utilizing the curve of the portion.

In the case of cutting, the shape is designated as in the case of insertion as shown in FIG. At this time, the shape 3 is designated so that the center line of the cut-out shape and the changed portion designation line written on the two-dimensional part coincide with each other.

Next, at step 907, at least one polygon is defined as one or more regions formed by the two-dimensional parts including the changed portion designation line input using the minute element dividing means 117. It is reconstructed by the small two-dimensional elements and nodes.

Although many studies have been made on a method of dividing polygonal elements on the surface of a three-dimensional structure, in the present embodiment example, "cloth pattern for three-dimensional CAD / CAM and its automatic finite element division". The method of Textile Society of Japan Vol.42.No.4.p101-109 was used. The advantage of this method is that the elements inside are formed so as to be close to an equilateral triangle, so that elements as homogeneous as possible can be formed. Elements are created for each area, and a plurality of nodes are created on the change point designation line.

The node P that constitutes the element X created here₁
~ P₃The definition method of is as follows:
Numbers in a clockwise direction in a consistent direction
Preferably. Then, the node P of the element X₁~
P₃When the number is, for example, counterclockwise, the surface
Is defined as a table. In addition, the longitudinal and weft directions of the fabric are displayed.
As the information, for example, of the constituent nodes, the first node P
₁Second node P from ₂Vector heading for the component weft
The angle θ formed with the direction (horizontal axis direction in the figure) is used as the information of the element X.
It is convenient and preferable to handle when added. this
The warp of the cloth is calculated by calculating the wearing condition of clothes.
Calculation based on the anisotropy of the direction and the weft direction becomes possible.

When the shape 4 is inserted in the center of the two-dimensional part 11, as shown in FIG. 7, the number of element divisions on the outer periphery of the changed portion designation line 12 and the shape 4 to be inserted in that portion should be the same. Both the two-dimensional part 11 and the insertion shape 4 are divided into elements.

When the shape 5 is cut out from the center of the two-dimensional part 11, as shown in FIG. 8, a node is generated at a portion of the outer peripheral line of the cut shape 5, and the portions are opposed to each other so that the portion can be joined later. The processing is performed so that the number of nodes on each side is the same. The elements existing in the cutout shape 5 are deleted.

When the shape 6 is added to the end of the two-dimensional part 11a, as shown in FIG. 9, the number of nodes is the same as the boundary of the other two-dimensional part 11b which was originally supposed to be joined. Processing is performed so that As a result, it becomes possible to divide the element into an additional shape without affecting other two-dimensional parts.

Next, in step 908, the three-dimensional structure model is transformed. When inflating the three-dimensional structure, a shape is added to the change point designation line portion of the three-dimensional structure divided into elements by the above method, and the three-dimensional structure is reassembled using the wearing calculation means 114 (Fig. 10). On the other hand, when the three-dimensional structure is reduced to a small size, the shape is cut out from the change point designation line portion of the three-dimensional structure and the opposite sides of the perforated portion of the two-dimensional part are joined by the element dividing means, or the outer shape When is changed, another two-dimensional part to be combined with the part is joined to calculate a three-dimensional structure shape in which the size of the part is reduced (see FIG. 11).

When the type of material of the three-dimensional structure causes a change in shape due to the influence of external force, the wearing calculation means 114 is used to calculate the change in shape when an external force is applied, and this is displayed and confirmed. In the example of the present embodiment, the above-mentioned JP-A-2000-00338 is used.
The external force application state can be calculated during the deformation work or in the final stage using the method disclosed in Japanese Patent No. 3, and the behavior of the three-dimensional structure under gravity can be confirmed each time. In addition,
If the material of the three-dimensional structure is such that the deformation due to its own weight can be ignored, this process may not be performed.

When a desired design is obtained by repeating the design transformation by the above method, the result is output to the original two-dimensional part CAD.

The output data is, in addition to the same two-dimensional part shape data as that which is input, the changed portion designation line, the inserted or cut shape, and its size data which are written on the part for design deformation.

For example, when the three-dimensional structure is a garment, there are various methods for modifying the two-dimensional part, that is, the pattern, which is the basis of the garment. Since where the pattern is divided is related to the design, even if a cut is made in the center of the part to inflate the shape when deforming the 3D model, the pattern that was originally 2D It is not possible to insert the additional shape by making a notch directly in the. As a general method, the amount of the added cloth is changed by modifying the shape of the pattern, that is, the outer peripheral line, or it is distributed on multiple peripheral patterns to correct all the related patterns. How to do it. There are various options for this modification work depending on factors such as the operator's preference, the location and amount of modification, and the design. Therefore, in the reflection method selection step 909, the two-dimensional component correction method designating unit 120 stores the correction method stored in the two-dimensional component correction method storage unit 125 based on the size and position information of the inserted or cut shape. Some candidates that are considered to be effective are extracted and presented to the operator, and the operator can select a method that is close to what he is thinking from the options. Here, when the modified method does not apply to any method, the shape is manually modified using the two-dimensional part shape editing means 121. New correction method is appropriate 2
It is possible to add to the dimensional part correction method storage means 125. By repeating this, the range of the correction method is widened, and the work efficiency is improved as it is used, which is preferable.

The correction calculation of the two-dimensional part is performed in step 909.
CA according to the procedure stored in the method selected in
The function of editing the shape of D is executed.
For example, as shown in FIGS. 12A to 12C, when the notch 14 made in the left side portion of the component 13 is moved to the notch 15 at the lower center, the notch position is moved around the rotation center 16. Specify the correction method. Some of the methods include
The correction storage means stores the operation sequence of the CAD function of (1) making a cut in the opening, (2) setting the center of rotation, (3) specifying the area, and (4) rotating. A desired two-dimensional part is created by executing the designated correction method.

By the above operation, the developed shape of the two-dimensional part can be obtained. In the case of clothes, it is possible to use it as a paper pattern by attaching a sewing margin to this part shape.

By using the three-dimensional structure manufacturing support apparatus according to the present invention, the shape change work of the prototype clothes, which is conventionally used as one of the clothing design methods, called the toilet work, can be performed on the computer screen. You will be able to carry out with a similar feeling.

In the toilet work using the present invention, first, the pattern maker prepares a template that seems to be close to the design image shown by the designer, and inputs the template shape into the computer as two-dimensional part data. Then, the data of a plurality of patterns is pasted on the basic data in the shape of a human called a human stand or a model to create three-dimensional three-dimensional clothes shape data. In that state, check the size and space of the required parts, check the silhouette, check the texture, etc., and consider design changes.

As a result of this examination, the pattern maker, in order to obtain the three-dimensional clothing shape that meets the designer's intention, changes the shape by picking one end of the clothing using the input device on the screen and changing the type of cloth. After performing work such as inputting numerical values for changes in clearance and length, and making changes, calculations are performed based on the state of external force. By repeating this operation by trial and error, it is possible to obtain numerical data such as desired clothing shape and cloth physical properties.

When the desired three-dimensional clothing shape is created,
By correcting the two-dimensional part data based on the above, it is possible to obtain the pattern data that can produce the desired three-dimensional clothing shape.

In the above explanation, the design maker performs an operation such as design change on the three-dimensional structure, reflects the result on the two-dimensional pattern paper, and the pattern maker makes a pattern on the two-dimensional CAD by referring to the reflected information. It was a method of finally making a pattern, but by making the two-dimensional part data uniquely correspond to the three-dimensional structure data, and making a change to the two-dimensional part on the screen, it automatically becomes three-dimensional. If the 3D structure is automatically reflected in the 2D parts when it is reflected in the structure, or conversely, if the 3D structure is changed, the final pattern data can be acquired at the same time when the design change of the three-dimensional clothing shape is completed. Is obtained, and it becomes possible to significantly reduce the time for toilet work. Further, in the present method, it is possible to apply to the design of leather products that do not need to worry about stretchability, for example, the design of bags.

According to the present invention, as a basic model for creating a new design, even when the stress-free data obtained by simply assembling a pattern is used, calculation is performed in consideration of material anisotropy every time the design is deformed. In addition to the above, since it has a function that can calculate the state of applying an external force, it is possible to design while grasping what behavior behaves under the actual usage conditions of the material.

Further, in the present invention, the viewpoint can be freely changed with respect to the three-dimensional three-dimensional clothing shape, and the three-dimensional observation of the three-dimensional body can be performed from any position and direction. Can be evaluated and examined. Also,
Depending on the treatment method, the elongation rate of the cloth, the contact pressure with the stand, and the like can be displayed in similar colors. These are intended to give the pattern maker virtually invisible information even in invisible information in actual twirling work by using computer graphics technology.

[0099]

[Embodiment 1] A basic operation method for calculating deformation of a three-dimensional structure using the present apparatus will be described by taking a prototype of a body as an example.

First, two-dimensional part data of clothes is input from the calculation data input means 113, divided into minute elements using the minute element dividing means 117, and then the assembly calculation is performed using the wearing calculation means 114. . The result is stored in the three-dimensional structure part shape storage unit 108. This two-dimensional part data used the data created based on the pattern data of the apparel CAD atelier of Toray Industries, Inc.

Next, the human body shape model data consisting of three-dimensional numerical data is input from the input device and stored in the human body shape storage device 112. In the case of the present embodiment, as shown in FIG. 17, the human body data uses data composed of triangular minute elements.

In the case of the present embodiment, as positional relationship holding data between the clothing and the human body, information for putting on so that the points on the back of the neck and both the left and right armpits are on the same part of both the human body and the clothing is provided. It was given and the wearing condition was calculated.

Next, calculation for changing the design was performed. That is, the two-dimensional parts 13a to 13a shown in FIG.
For a three-dimensional structure consisting of 13d, as shown in FIG. 13 (b), a triangular additional shape 7 is added to the lower part of the front parts 13a, 13b, so that as shown in FIG. 13 (c),
Increase the shape of the dimensional structure. When changing the shape of the original paper pattern shown in FIG. 14 (a), in order to spread the entire hem evenly, as shown in FIG. 14 (b), at the joint portion of the front part 13a and the rear part 13c, Shapes 7a and 7c formed by dividing the amount of the added shape 7 were allocated.

[Embodiment 2] In Embodiment 2, a part of the body shape used in Embodiment 1 is cut out to make it smaller. That is, with respect to the three-dimensional structure including the two-dimensional components 13a to 13d shown in FIG. 15A, the cut-out shape 8 indicated by hatching is removed from the lower portion of the front components 13a and 13b as shown in FIG. 15B. As a result, the skirt portion of the three-dimensional structure was thinned as shown in FIG. In this case, FIG.
In correcting the original pattern shown in FIG.
As shown in (b), not only is the notch of the shape 8a formed by a part of the cut shape 8 formed in the front part 13a, but the joint portion of the rear part 13c with the front part 13a is also cut from the remaining portion of the cut shape 8. A pattern for obtaining a natural hem shape was obtained by making a notch of the shape 8c and changing the shape.

[0105]

The effects of the present invention are as follows.

[0106] In the field where clothes are prototyped, a part of the cloth is picked when the shape is corrected, or a change in the silhouette is confirmed when the shape is simply changed by cutting open and sandwiching the cloth. Since the image confirmation and the amount of change at that time are reflected in the pattern CAD and the like can be performed on the computer, the steps up to the pattern making can be performed in the same sense as the conventional work.

As a result, since it becomes possible to prototype a three-dimensional structure such as clothes on a computer, it is possible to shorten the work such as arranging fabrics necessary for the trial production, arranging at the factory, and delivery. Get faster Also, since it is via a computer, it is possible to perform the same design modification work even at a distance, and it is possible to further speed up the work up to now.

Furthermore, since the data of the three-dimensional structure is stored in the computer, various variations can be created based on one design, and the subtle difference in pattern when the material is changed can be immediately recognized. It can be calculated and obtained. Therefore, the two-dimensional part data creation work that has required a lot of experience in the past becomes simple. All of these benefits speed up and reduce costs.

Another advantage is that a new modeling method can be tried for designing clothes in three dimensions. Since you only change clothes in the calculator, you can create designs with free ideas that are not tied to conventional patterns.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment example of the present invention.

FIG. 2 is a flowchart showing an outline of the operation of an embodiment of the present invention.

FIG. 3 is a view for explaining the definition of an insertion or cutout shape according to an embodiment of the present invention, and FIGS. 3A to 3F are views showing various shapes.

FIG. 4 is a diagram showing a shape added to an end portion of a two-dimensional component according to an embodiment of the present invention.

FIG. 5 is a diagram showing an example of a case where a cutout shape is designated at the center of a two-dimensional component according to an embodiment of the present invention.

FIG. 6 is an explanatory diagram of a minute element model of the present invention.

FIG. 7 is a diagram illustrating a state of a node when dividing both a two-dimensional part and an insertion shape according to an embodiment of the present invention into elements.

FIG. 8 is a diagram illustrating a state of a node when dividing both a two-dimensional part and a cut shape according to an embodiment of the present invention into elements.

FIG. 9 is a diagram illustrating a state of nodes when dividing a component when adding a component to an end of a two-dimensional component according to an embodiment of the present invention.

FIG. 10 is a diagram illustrating a shape change of a three-dimensional structure when a shape is inserted in the embodiment of the present invention.

FIG. 11 is a diagram illustrating a shape change of a three-dimensional structure when a shape is cut off in an embodiment example of the present invention.

FIG. 12 is a view for explaining an example of a procedure for changing a two-dimensional component of the present invention, in which (a) to (c) are diagrams showing respective steps.

FIG. 13 is a view for explaining a shape change when the shape is inflated by inserting a triangular shape into a garment using a three-dimensional structure as an embodiment of the present invention, and FIGS.
(C) is a figure which shows each process.

FIG. 14 shows a case where a three-dimensional structure is used as clothes in one embodiment of the present invention, and a shape change when the shape is inflated by inserting a triangular shape is reflected on a paper pattern which is a two-dimensional component. It is for explaining and (a)-(b) is a figure which shows each process. It is a figure which shows an example of.

FIG. 15 is a view for explaining a shape change when the hem portion is thinned by cutting out a triangular shape in a three-dimensional structure as clothes in one embodiment example of the present invention.
(C) is a figure which shows each process.

FIG. 16 shows a case in which a three-dimensional structure is used as clothes in one embodiment of the present invention, and a change in shape when a hem portion is thinned by cutting a triangular shape is reflected on a two-dimensional pattern paper pattern. And (a) and (b) are diagrams showing each step.

FIG. 17 is a diagram showing an example of a human body model according to an embodiment of the present invention.

[Explanation of symbols]

1a to 1f, 2, 3, 4, 5, 6, 7, 8 Shape 11, 11a, 11b, 13, 13a to 13d Two-dimensional part 12 Change point designation line 14, 15 Cut 16 Rotation center 101 Personal computer 102 Keyboard 103 mouse 104 display 105 printer 106 three-dimensional input device 107 hard disk device 108 three-dimensional structure shape information storage means 110 two-dimensional part information storage means 111 material information storage means 112 human body shape information storage means 113 calculation data input means 114 wearing calculation means 115 Change point designating means 116 Change figure shape designating means 117 Small element dividing means 118 Three-dimensional structure shape transforming means 119 Two-dimensional part CAD output means 120 Two-dimensional part correcting method designating means 121 Two-dimensional part shape editing means 122 Two-dimensional parts automatic Management means 123 2-dimensional part data output means 125 2-dimensional component correction method storage means

Claims (15)

[Claims] 1. A step of setting a change point designation line for changing a part of a shape on an arbitrary surface of a structure model expressing a three-dimensional structure, and the structure based on the change point designation line. A step of incising the surface of the body model and creating a two-dimensional insertion shape to be inserted into the incision part; a structure model including the incision part and the insertion shape being composed of at least one or more microelements. A method of manufacturing support for a three-dimensional structure, comprising: a step of repairing and creating joining information between the incision and the insertion shape; and a step of joining the incision and the insertion shape based on the joining information. 2. A step of setting a change point designation line for changing a part of the shape on an arbitrary surface of a structure model representing a three-dimensional structure, and the line based on the change point designation line. Creating a two-dimensional cut-out shape to be cut out from the entry portion; and removing the cut-out shape on the surface of the structure model to reconstruct the remaining portion with at least one or more microelements, A step of creating joining information for removing the cutout shape on the surface of the body model to close the remaining portion, and removing the cutout shape of the surface of the structure model left to the joining information. A method for supporting the manufacture of a three-dimensional structure, the method including: bonding based on 3. A method for supporting the production of a three-dimensional structure, which is formed by joining two-dimensional parts, which are at least one or more planar objects, and an arbitrary structure model representing the three-dimensional structure. Setting a change point designation line for changing a part of the shape on the surface of the structure, and incising the surface of the structure model based on the change point designation line, and inserting the two-dimensional shape into the incision section. A step of creating an insertion shape, and the structure model including the incision portion and the insertion shape are reconfigured by at least one or more minute elements to create joining information between the incision portion and the insertion shape. A step of joining the incision and the insertion shape based on the joining information; and a step of joining the cut portion and the insertion shape based on the joining information after obtaining the shape of a desired structure model. Dimensional part Production support method of the three-dimensional structure and a step of deforming the shape. 4. A method for supporting the manufacture of a three-dimensional structure, which is formed by joining two-dimensional parts, which are at least one or more planar objects, and is an arbitrary structure model representing the three-dimensional structure. Setting a change point designating line for changing a part of the shape on the surface of, and creating a two-dimensional cut shape to be cut from the line writing section based on the change point designating line, The portion left on the surface of the structure model after removing the cutout shape is reconfigured by at least one or more microelements, and the remaining portion on the surface of the structure model is removed by removing the cutout shape. For creating the joining information for the structure model, removing the cut shape of the surface of the structure model and joining the remaining cut edges based on the bonding information, and obtaining the shape of the desired structure model. later Production support method of the three-dimensional structure and a step of based on the insertion shape information and the serial change point designated wire deforming the two-dimensional component shape. 5. A manufacturing support device for designing a shape of a three-dimensional structure, wherein a changed portion is designated for changing a part of the shape on an arbitrary surface of a structure model expressing the three-dimensional structure. Change point designating means for setting a line, and modified drawing shape designating means for making an incision in the surface of the structure model based on the change point specifying line and creating a two-dimensional insertion shape to be inserted into the incision part, A microelement dividing unit that reconfigures the structure model including the incision portion and the insertion shape with at least one or more minute elements to create joining information between the incision portion and the insertion shape, and the incision portion. A three-dimensional structure manufacturing support apparatus comprising: a three-dimensional structure shape deforming means for joining an insertion shape and an insertion shape based on the joining information. 6. A manufacturing support device for designing a shape of a three-dimensional structure, wherein a changed portion is designated for changing a part of the shape on an arbitrary surface of a structure model expressing the three-dimensional structure. Change point designating means for setting a line, modified figure shape designating means for creating a two-dimensional cut shape to be cut from the line entry part based on the change point designating line, and on the surface of the structure model, A microelement that reconstructs the remaining portion after removing the cutout shape with at least one or more microelements, and creates joining information for removing the cutout shape and closing the remaining portion on the surface of the structure model. A three-dimensional structure manufacturing support device including a dividing means and a three-dimensional structure shape deforming means for joining the cut edges remaining after removing the cut-out shape of the surface of the structure model based on the joining information. . 7. A manufacturing support device for designing the shape of a three-dimensional structure formed by joining two-dimensional parts, which are at least one or more planar objects, and a structure expressing the three-dimensional structure. Change point designation means for setting a change point designation line for changing a part of the shape on an arbitrary surface of the body model, and incising the surface of the structure model based on the change point designation line, and making the incision A modified figure shape designating means for creating a two-dimensional insertion shape to be inserted into a part, a structure model including the incision portion, and the insertion shape are reconfigured by at least one or more microelements to form the incision portion. A minute element dividing means for creating joining information with the insertion shape, a three-dimensional structure shape deforming means for joining the incision and the insertion shape based on the joining information, and a desired structure model shape. After getting above And a a further portion designating line information of the insertion shape based and a two-dimensional part shape deforming means for deforming the two-dimensional component shape 3
Dimensional structure manufacturing support device. 8. A manufacturing support device for designing the shape of a three-dimensional structure formed by joining two-dimensional parts, which are at least one or more planar objects, and a structure expressing the three-dimensional structure. Change point designation means for setting a change point designation line for changing a part of the shape on an arbitrary surface of the body model, and a two-dimensional cut to be cut from the line entry section based on the change point designation line A modified graphic shape designating means for creating a shape; and a portion left on the surface of the structure model after removing the cut-out shape is reconfigured by at least one or more microelements, and the surface of the structure model is described above. Minute element dividing means for creating joining information for removing the cutout shape and closing the remaining portion, and joining the resection edges remaining after removing the cutout shape of the surface of the structure model based on the joining information 3rd order Structure shape deforming means, and two-dimensional part shape deforming means for deforming the shape of the two-dimensional part based on the information of the change point designating line and the inserted shape after obtaining the shape of a desired structure model. With 3
Dimensional structure manufacturing support device. 9. Software including a program for causing a computer to execute each step of the method for manufacturing a three-dimensional structure according to any one of claims 1 to 4. 10. A computer-readable storage medium in which the software according to claim 9 is stored. 11. A system in which a computer in which the software according to claim 9 is stored can be used via a network. 12. A system capable of reusing data of a three-dimensional structure created by the software according to claim 9 via a network. 13. A three-dimensional structure manufactured by the method for supporting the manufacture of a three-dimensional structure according to claim 1. 14. A two-dimensional component produced by the method for supporting the production of a three-dimensional structure according to claim 3. 15. A method of ordering a three-dimensional structure, wherein ordering data is data for creating a two-dimensional part created by the method for supporting the manufacture of a three-dimensional structure according to claim 3 or 4.