JP6153377B2 - Clothing design equipment - Google Patents

Description

  The present invention relates to clothing design.

  In the design of clothing, it is known that a clothing model is formed in the three-dimensional space by providing an appropriate clearance between the human body model and the clothing model in the three-dimensional space (Patent Document 1 Patent 4216537). . When this clothing model is divided into parts and developed on a two-dimensional plane, clothing pattern data is obtained.

  A part obtained by developing a three-dimensional curved surface in two dimensions has a shape that approximates a clothing model, but is not a shape that can accurately reproduce the clothing model. Since the bulge of the clothing model is developed approximately on a flat surface, when it is actually worn, there is a problem that the cloth is insufficient at the part where the human body swells and a feeling of pressure is felt, and the cloth is left at the recessed part. On the other hand, if parts are subdivided or many darts are provided, the parts will more accurately reproduce the 3D shape. However, subdivided parts and too many darts will be sewn with clothing design and sewing. This is not preferable. If the shape of the part is not accurate at the swollen part, the swollen part will generally not be able to reproduce the swollen part, and the clothing will press the swollen human body. In addition, indented parts such as the base of thighs generally become a part that cannot reproduce the depression sufficiently, and clothing will be bumpy.

Patent 4216537

  An object of the present invention is to enable easy editing of clothing pattern data so as to include intrusion or stretching. Then, the pattern data of clothing can be edited so that it is preferable in terms of design and fits the unevenness of the human body.

The present invention provides a design apparatus for editing pattern data of clothing in a three-dimensional space.
A memory for storing the three-dimensional shape of the human body model;
Means for creating or inputting pattern data of clothing composed of a plurality of parts;
A virtual clothing based on the pattern data, a simulation unit for virtually wearing a human body model by simulation;
Generates a 3D shape part that has an outline that shows the extent to which the end of the part is stitched to other parts by intrusion or stretching, and a processing line that extends from the outline to the inside of the part and fits the human body model A processing unit;
An unfolding part that unfolds on a two-dimensional plane so that a three-dimensional shaped part is cut in a processing line;
As a result of development in a two-dimensional plane, when a gap is generated along the processing line, a cloth is added to the gap, and when a part where parts overlap along the processing line is generated, the overlapping cloth is cut out. And a pattern changing unit that deforms the parts developed on the dimension plane.

  The clothing pattern data can be obtained by, for example, inputting a contour directly on the surface of a human body model to create a three-dimensional clothing part and approximating it on a two-dimensional plane. Alternatively, the human body may be measured and pattern data may be created by a traditional technique. The pattern data may be created by the design device, or may be created elsewhere and input to the design device. When the wearing state is simulated by virtually stitching a two-dimensional part, a part that needs to be squeezed or a part that needs to be stretched is found. For this part, an outline and a processing line indicating a range to be stitched with other parts are generated, and a shape that fits the human body model is formed. The outline and processing line are manually input, for example, but may be automatically generated from clothing simulation data. When inputting manually, both the outline and the processing line may be input, or only one may be input and the other may be generated based on the predetermined rule. In order to fit the human body model, for example, the part of the part that is covered with the part, that is, the part corresponding to the part, which has been accurately developed on the two-dimensional plane, is the two-dimensional shape of the part. What should I do? When a gap or clearance is required between the human body model and the clothing, the human body model may be enlarged before deployment or the parts may be enlarged after deployment. In addition, when the shape of the part is a three-dimensional clothing model that is approximately expanded to a two-dimensional plane, the three-dimensional shape of the part corresponding to the part of the clothing model is accurately expanded on the two-dimensional plane, The two-dimensional shape of the part may be used. In these processes, data other than the part shape, such as part outlines and process lines, are not erased.

  A processing line is equivalent to a virtual cut, and when a part that fits a 3D human body model is developed on a 2D plane, there is a lack of cloth (fabric) due to the swelling of the human body. A gap is created along the line, and cloth is added to the gap. In addition, when cloth (cloth) is left over due to the depression of the human body, parts overlap along the processing line and the overlapped part is cut off. When cloth is added or overlap is removed, the processing line is erased. Then, pattern data of parts that fit the human body model is obtained. To manufacture the actual garment, it is stitched with other parts along the outline of this part by intrusion or stretching.

  Although it is preferable to be able to cope with both intrusion and stretching, it is also possible to accommodate only one of them. The outline and the processing line are specified by the user, for example, but may be automatically generated from simulation data.

  Preferably, the simulation unit re-simulates the wearing state of the garment based on the part deformed so as to add a cloth to the gap or cut out an overlapping part according to the outline length of the part before deformation. Since the simulation is performed according to the outline of the part before deformation, the simulation can be performed so as to represent suturing by intrusion or stretching. In addition, since the simulation is performed based on parts deformed so that cloth is added to the gap or overlapping portions are cut off, it is possible to confirm whether the clothes fit the human body model due to the deformation of the parts.

  Preferably, information indicating a range to be stitched to the pattern data of another part is added so that the outline of the deformed part is stitched to another part with the length of the outline before the deformation. This information specifies the range to be sewn by intruding or stretching, and the outline can be sewn at the length before the part is deformed.

Block diagram of the design device of the embodiment Diagram showing processing in the Iseing / stretching processing unit A diagram showing the process of squeezing, where a) is a clothing model on a human body model, b) is a part pattern, c) is a 3D simulation image, and d) is an outline of sneaking into a clothing model. E) shows the addition of a processing line to the pattern, f) shows the changed pattern, and g) shows the changed three-dimensional simulation image. The figure shows the process of stretching, where a) is the clothing model on the human body model, b) is the pattern data of the part, c) is the 3D simulation image, and d) is the cross section of the thigh crotch root in the simulation. e) specifies the outline and area of the stretch to the clothing model, f) adds the processing line to the pattern, g) the changed pattern, h) the changed 3D simulation image, i ) Shows a cross section of the crotch root in the simulation after the change. The figure which shows the change of the pattern data of the part by the warpage schematically The figure schematically shows the change of part pattern data due to stretching, a) shows the change of pattern data, b) shows the overlap of parts along the processing line, c) shows the cross section of the overlapped part Show. The figure which shows the processing at the time of generating the intrusion / extension information by 3D simulator

  In the following, an optimum embodiment for carrying out the invention will be shown.

  1 to 7 show an embodiment. FIG. 1 shows a design device 2 composed of a computer, where 4 is a bus, 5 is a color monitor, 6 is a mouse, and may be another pointing device, and 7 is a keyboard. Reference numeral 8 denotes a LAN interface, and reference numeral 9 denotes a removable disk. With these, 3D data of a human body model, 3D data of a clothing model, clothing pattern data, a program of the design device 2, and the like are input to and output from the design device 2. A color printer 10 and a program memory 12 store a program of the design apparatus 2. Reference numeral 14 denotes a human body model memory for storing three-dimensional (three-dimensional) data of the human body model. The human body model data includes data obtained by measuring the human body shape using a three-dimensional measuring device, data obtained by measuring a human body using a measure, or the like. 3D data of Torso that is not a human being. The human body model may have a three-dimensional shape and may represent data representing the shape of the human body as it is, or may be data that directly expands the shape of the human body and directly becomes the shape of clothing when a range is specified.

  The clothing model creation unit 16 creates clothing data as three-dimensional data. For example, a virtual cloth is placed on a human body model, a texture is added, and a fold, a button, a pocket, etc. are added. The two-dimensional development unit 18 divides the clothing model into a plurality of parts, adds darts, etc. in accordance with the user's designation with the mouse 6 or the like or the rules stored in advance by the two-dimensional development unit 18 to add a two-dimensional plane. Expand on top. In this specification, data representing the shape of a clothing part is called pattern data, and this data is sometimes called pattern paper. In order to develop a clothing model in a three-dimensional space on a two-dimensional plane, the clothing is virtually cut into parts. However, accurate conversion from the three-dimensional space to the two-dimensional plane is difficult, and it is difficult to edit the pattern data so that the swollen portion can be reproduced. It is also difficult to edit the pattern data so that the recessed portion such as the base of the thighs can be reproduced. The pattern data may be data obtained by measuring a human body and writing it on a pattern.

  The three-dimensional simulator 20 arranges parts on the data with respect to the human body model, virtually sewes them into virtual clothes, and then dynamically calculates the stable state of the virtual clothes. In this way, a virtual clothing wearing state on the human body model is simulated in a three-dimensional space. A plurality of reference points such as mesh vertices are arranged on the part, and the three-dimensional simulator 20 obtains deformation of the part from the distance between the mesh vertices after wearing. If the part is too small for the human model, the mesh is stretched and the distance between the vertices increases. Instead of the deformation of the mesh, the deformation of the polygon constituting the part may be evaluated. The three-dimensional simulator 20 measures a gap between the human body model and virtual clothing. It is better to shrink parts that have too large a gap, and it is better to make parts that have too little gap.

  The pattern correction unit 28 receives the designation from the user in a state where a three-dimensional simulation image representing the clothing wearing state is displayed on the color monitor 5, for example, and corrects the pattern data. 30 is an intrusion / stretching processing unit, and based on the outline of the intrusion / stretching specified by the user and the processing line, the pattern data of the part is assumed to be sewn by intrusion / stretching. Correct it.

  The memory 32 stores the outline of the crease area and the outline of the stretch area, their length, the position of the processing line, and the like. The crease area is the crease area, and the stretch area is the stretch area. It is. The outline is the part where the end of the part is included in these areas. The outline becomes longer when the crease area is set. When sewing, the outline is shortened and the original length is sewn. Also, the outline becomes shorter when the stretch area is set, and the outline is stretched when sewing and the original length is sewn. The processing line is a line for virtually cutting a part in these areas.

  The memory 32 stores the length of the outline before the pattern data is changed by intrusion or stretching. The reason why the length of the outline before the deformation is stored is that when the three-dimensional simulation is performed after the pattern data is changed, the simulation is performed by expanding and contracting to the length before the outline is changed. As a result, simulation can be performed as if sewing by stretching or stretching. The data of the seal indicating the both ends of the outline is added to the pattern data of the other part (other parts) that sew the part. Data representing two or more points to be aligned at the time of sewing may be added to a part that is not limited to a mark and that has a warping or stretching. The interval between seals is the length of the outline of the virtual clothing in the 3D space before it is expanded into 2D data, and the 2D data is used to maintain this length for other parts of the opponent. expand. As a result, the length of the portion that is sewn by intrusion or stretching matches the garment designed in the three-dimensional space. Further, the processing line position is stored in the memory 32.

  The three-dimensional processing unit 33 generates an intrusion area and an extension area based on the outline and the processing line. Further, the three-dimensional processing unit 33 copies the three-dimensional shape of the human body model of the part covered with the part to be indented or stretched so that the data in the memory 32 is maintained on the part side. The part covered with parts means the part corresponding to the parts. A part obtained by copying the shape of the human body model is a three-dimensional shape part that fits the human body model and includes an outline, a processing line, and the like. When this part is developed on a two-dimensional plane by the two-dimensional development unit 18, a gap is generated along the processing line in the crease area, and the cloths overlap along the processing line in the stretched area. The pattern changing unit 34 adds a cloth to a gap generated along the processing line, cuts out the overlapping cloth along the processing line, and changes the pattern data of the part. Based on the changed pattern data, if the clothing wearing state is simulated again by the three-dimensional simulator 20, the user can determine whether the pattern data is good, that is, the quality of the clothing design. If it is defective, the pattern data is changed again by the intrusion / stretching processing unit 30 or the like.

  The process related to squeezing and stretching can be automatically started in the three-dimensional simulator 20 by detecting, for example, an area requiring squeezing and stretching by the detection unit 22 without an instruction from the user. The detection unit 22 may not be provided. Reference numeral 23 denotes a designated area memory for storing an area to be squeezed / stretched, for example, a portion such as a hip, a contact portion with a hipbone, a base of a thigh. The gap detection unit 24 detects a gap between the human body model and the virtually worn clothing and extends an area where the gap is excessive as a candidate for the area. The deformation detection unit 25 detects an area where the virtual clothing is greatly stretched by the human body model from the distance between the vertices of the virtual clothing mesh or the distance between the vertices of the polygon, etc. And The surging / extension information generating unit 26 sets the detected area designated in the designated area memory 23 as the surging area or the stretching area. In case of intrusion, an outline of intrusion and a processing line are generated. In case of extension, an outline of extension and a processing line are generated.

  The information about the area to be generated or the area to be stretched generated by the detection unit 22 is transferred to the scale-in / stretching processing unit 30 to correct the pattern data. In the case of intrusion, the data of the mark is added to the pattern data of the part to be stitched, and the outline length before the intrusion is obtained. The interval between the marks is the length of the outline in the virtual clothing in the three-dimensional space before the clothing model is developed into the two-dimensional data. In addition, cloth is added to the gap generated along the processing line, and the pattern data of the part is changed. In the case of stretching, the mark data is added to the pattern data of the parts to be stitched, and the outline length before stretching is obtained. In addition, the pattern data of the part is changed by cutting out the overlap generated along the processing line.

FIG. 2 shows the processing in the squeeze / stretching processing unit 30.
-An outline and a processing line are input by the user to generate an intrusion area or an extension area (step 1).
・ Stores the position and length of the outline before pattern correction for the crease area, adds a cloth to the gap of the processing line, and generates pattern data after adding the cloth (step 2).
Stores the position and length of the outline before pattern correction for the stretch area, cuts out the overlapping cloth along the processing line, and generates pattern data after cutting the cloth (step 3). FIG. 3 shows the process of squeezing, FIG. 4 shows the process of stretch, FIG. 5 shows the pattern change by squeezing, and FIG. 6 shows the pattern change by squeeze. Further, FIG. 7 shows additional processing when the detection unit 22 is provided in the three-dimensional simulator.

  FIG. 3 a) shows a virtual clothing (clothing model) on the human body model, and a solid line shows a dividing line of a front part of one piece and one dart. When this is developed on a two-dimensional plane as shown in FIG. 3B), the part 40 before deformation is obtained, and the rear part of the body to be sutured is designated as another part 41. When virtual clothing composed of parts 40, 41, etc. is virtually worn on a human body model, a simulation image of FIG. 3c) is obtained. Here, the lightness and darkness of the part 40 represents a change in the distance between the vertices of the mesh when the part is made of a mesh. The mesh does not deform in a portion that is not in contact with the hip or the crotch, so it is dark and touches the hip bone. The mesh is greatly deformed in the bright part. As described above, the lightness and darkness of the parts indicate the deformation of the clothing due to the wearing. When the image of FIG. 3c) is displayed on the color monitor, it can be seen that the user needs processing such as snooping.

  With the mouse or the like, the user adds an outline for squeezing and one or more processing lines as shown in FIG. The part to which the outline and the processing line are added is deformed so as to fit the three-dimensional shape of the human body model. When the deformed part is developed on a two-dimensional plane, the intermediate part 42 shown in FIG. 3E) is formed, and a gap is generated along the processing line 43. If a cloth is added to the gap of the processing line 43 and the processing line 43 disappears, the part 44 after deformation shown in FIG. Reference numeral 45 denotes an outline after deformation, which is longer than that before deformation, and the memory 32 also stores the length of the outline before deformation. Based on the pattern data of the deformed part 44 in FIG. 3f) (the other parts remain as the original pattern data), a three-dimensional simulation is performed again, and the simulation image in FIG. 3g) is obtained. It can be seen that the deformation of the garment has been reduced because the swelled. In the re-simulation, the outline 45 is expanded or contracted to the length of the outline 48 before deformation.

  FIG. 5 shows a pattern change due to squeeze, and an outline 48 before deformation and one or a plurality of processing lines 43 are input to the part 40 by the user. The outline 48 is a line that becomes the end of the crease area 46 at the end of the part. The squeeze area 46 includes the processing line 43 and the outline 45 is the end. The pattern changing unit 34 adds a cloth to the gap generated along the processing line 43. As a result, the outline 48 before deformation is extended to become an outline 45 after deformation. When the change of the pattern data is approved by the user, the pattern change unit 34 outputs the changed pattern data.

  The data of the marks 49 and 49 is added to the other part 41 that is the other side of the stitching at the interval of the outline 48 before the deformation so as to indicate the range to be stitched while the outline 45 is inserted. In the part 40, marks 49 and 49 are added to both ends of the deformed outline 45. Further, data indicating that the outline 45 after the deformation is reduced to the outline 48 before the deformation is added to the pattern data of the part 40. In the simulation of FIG. 3g), the simulation is performed by reducing the outline 45 to the outline 48 in response to the intrusion. In addition, when the other part 41 of the other party is also intruded, a part such as a tape having low stretchability is added between the parts 40 and 41, and data of the marks 49 and 49 are added thereto. The same applies to stretching.

  The process of stretching is shown in FIG. FIG. 4a) shows the rear side of one leg of the pant of virtual clothing worn by the human body model. Reference numeral 50 denotes an untransformed part. When clothing including the part 50 and other parts is virtually worn on a human body model, the cloth as shown in FIG. FIG. 4d) shows the thigh and the cross section of the surrounding garment, with a large gap between the garment and the thigh. For the images shown in FIGS. 4c) and 4d displayed on the color monitor, as shown in FIG. 4e), the user designates an outline to be stretched with a mouse or the like and a processing line. Correspondingly, the data of the part 50 is changed as shown in FIG. FIG. 5f) shows the intermediate part 52 where the fabrics overlap along the processing line 53, and FIG. 4g) shows the deformed part 54 and the deformed outline 55 obtained by cutting away the overlapped cloth. h) is a simulation image based on the part after the data change, and i) is a cross-sectional image showing a gap between the thigh and the clothing, and the outer periphery of the thigh and the inner periphery of the clothing are fitted.

  FIG. 6 shows the change of the pattern data of the part 50 corresponding to the stretching. As shown in FIG. 6A), the outline 58 before deformation and one or more processing lines 53 are inputted by the user. The outline 58 is at the end of the part 50 before deformation, and 51 is the other part of the sewing partner. The stretched area 56 is generated by, for example, the three-dimensional processing unit 33 so as to include the outline 58 and the processing line 53. Then, the three-dimensional shape of the human body model corresponding to the part 50 before deformation is copied to the part 50 so as to keep the processing line 53. Next, when the parts are developed on a two-dimensional plane, overlapping portions 59 and 60 where the cloths overlap along the processing line 53 are generated as shown in FIGS. When one of the overlapping portions 59 and 60 is cut off and virtually sewed along the processing line 53, the deformed part 53 is obtained. Accordingly, the outline 58 before deformation is shortened to the outline 55 after deformation, and marks 49 and 49 are added to both ends of the outline 55 with respect to the part 52 after deformation. Further, in the pattern data of the other parts 51, marks 49 and 49 are added at positions corresponding to both ends of the outline 58 before deformation. Data indicating that the outline 55 after the deformation is extended to the outline 58 before the deformation and the simulation is added is added to the pattern data of the part 52, and the data of the outline 58 before the deformation is stored together with the pattern data. In the simulations of FIGS. 4h) and i), the simulation is performed by extending the outline 55 to the outline 58 in response to the expansion. When the change of the pattern data is approved by the user, the pattern change unit 34 outputs the changed pattern data.

  FIG. 7 shows processing when the detection unit 22 is provided in the three-dimensional simulator 20. The gap between the virtual clothing on the data and the human body model is examined based on the data of FIGS. 4c) and 4d), and an area where the gap is equal to or larger than the first predetermined value is extended as a candidate area (step 4). Also, the amount of deformation of the mesh in the virtual clothing, the amount of deformation of the polygon, etc. are examined using data such as FIG. 3c), and the area stretched to the second predetermined value or more due to contact with the human body model is indicated. (Step 5).

  When these candidates are included in the designated area and the gap is large, an extended area is generated so as to include the area. Then, an outline is generated at the end of the part in the extension area, and a processing line is generated in accordance with a rule stored in advance in the extension area. In addition, if the distance between the vertices of the mesh is extended to a predetermined position or more, the crease is performed, and the crease area is generated so as to include the excessively stretched area. Then, an outline is generated in a range where the intrusion area appears at the end of the part, and a processing line is generated in accordance with a rule stored in advance in the intrusion area (step 6). Further, it stores the outline and the length of the outline after changing the pattern. These areas, outlines, processing lines, processing lines, and other data are stored, and a seal is added to the parts to be stitched and stored (step 7).

  Subsequently, the processing in steps 2 and 3 in FIG. 2 (processing in FIGS. 5 and 6) is executed, and the virtual clothing whose part pattern data is changed is again three-dimensionally simulated and displayed on the color monitor. The user approves the pattern data after the change, or inputs an outline, a stretch outline, and a process line, and executes the processes shown in FIGS. Pattern data that has undergone warping and stretching is output, the fabric is cut in accordance with the pattern data, and sewing is performed in accordance with marks 49 and 49 while performing warping or stretching. This gives a garment that corresponds to the virtual intrusion in FIG. 3g) or the virtual stretch in FIG. 4h).

In the embodiment, the following effects can be obtained.
1) Pattern data for clothing including warping and stretching can be created easily.
2) By setting the crease area and increasing the size of the part, the feeling of pressure at the part where the human body swells is eliminated, and by setting the extension area and reducing the size of the part, clothing looseness in the dent of the human body is eliminated. It can be lost.
3) If 3D simulation is performed so that sewing is performed with the outline length before deformation due to squeezing and stretching, a simulation simulating squeezing and stretching during sewing can be performed.
4) A seal is added to the pattern data, and it is possible to accurately specify the range to be squeezed or stretched, and to sew the other part accurately.
5) It is possible to automatically generate data for intrusion and stretching.
6) The interval between the seal marks is the length of the outline in the virtual clothing in the 3D space before it is expanded into 2D data. As a result, it can be sewn or stretched so as to match the clothing designed in the three-dimensional space.

2 Design device 4 Bus 5 Color monitor 6 Mouse 7 Keyboard 8 LAN interface 9 Removable disk 10 Color printer 12 Program memory 14 Human body model memory 16 Clothing model creation unit 18 Two-dimensional development unit 20 Three-dimensional simulator 22 Detection unit 23 Designated area memory 24 Gap detection unit 25 Deformation detection unit 26 Intrusion / extension information generation unit 28 Pattern correction unit 30 Intrusion / extension processing unit 32 Memory 33 Three-dimensional processing unit 34 Pattern change unit 40 Parts 41 before deformation Other parts 42 Intermediate parts 43 Processing line 44 Deformed part 45 Deformed outline 46 Indentation area 47 Gap 48 Outline before deformation 49 Joint mark 50 Parts 51 before deformation Other parts 52 Parts 53 after deformation Process line 55 Out after deformation In 56 extended area 58 prior to deformation of the outline 59, 60 overlapping portion

Claims (3)

In a design device for editing clothing pattern data in a three-dimensional space,
A memory for storing the three-dimensional shape of the human body model;
Means for creating or inputting pattern data of clothing composed of a plurality of parts;
A virtual clothing based on the pattern data, a simulation unit for virtually wearing a human body model by simulation;
Generates a 3D shape part that has an outline that shows the extent to which the end of the part is stitched to other parts by intrusion or stretching, and a processing line that extends from the outline to the inside of the part and fits the human body model A processing unit;
An unfolding unit that unfolds the three-dimensional part on a two-dimensional plane so that the part is cut by a processing line;
As a result of development in a two-dimensional plane, when a gap is generated along the processing line, a cloth is added to the gap, and when a part where parts overlap along the processing line is generated, the overlapping cloth is cut out. A clothing design device comprising: a pattern changing unit that deforms a part developed on a three-dimensional plane.   The simulation unit re-simulates the garment wearing state based on the part deformed so as to follow the length of the outline of the part before deformation and add a cloth to the gap or cut off the overlapping portion. The garment design device according to claim 1, wherein the garment design device is configured as follows.   The length of the outline before deformation is configured to add information indicating a range to be stitched to the pattern data of the other part so that the outline of the deformed part is stitched to the other part. The garment design device according to claim 1, wherein the device is a clothing design device.