EP1137349B1 - Vefahren un vorrichtung zur simulation und darstellung der kleidung eines mannequin - Google Patents

Vefahren un vorrichtung zur simulation und darstellung der kleidung eines mannequin Download PDF

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Publication number
EP1137349B1
EP1137349B1 EP00967981A EP00967981A EP1137349B1 EP 1137349 B1 EP1137349 B1 EP 1137349B1 EP 00967981 A EP00967981 A EP 00967981A EP 00967981 A EP00967981 A EP 00967981A EP 1137349 B1 EP1137349 B1 EP 1137349B1
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Prior art keywords
garment
piece
pieces
dummy model
manikin
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French (fr)
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EP1137349A1 (de
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Michel Ziakovic
Ramon Yepes Segovia
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Investronica Sistemas SA
Lectra SA
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Investronica Sistemas SA
Lectra SA
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    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
    • A41H3/00—Patterns for cutting-out; Methods of drafting or marking-out such patterns, e.g. on the cloth
    • A41H3/007—Methods of drafting or marking-out patterns using computers

Definitions

  • the invention relates to the field of simulation of dressing of a manikin, and finds particular application in garment and / or sewing industries.
  • the invention describes a method and a device for setting up, on a virtual manikin, a floating garment originally described by its two-dimensional fabric pieces.
  • the problem is to sew the pieces together in one space three-dimensional (3D) and place the garment thus obtained, around the virtual dummy, in a correct position.
  • FIG. pieces of clothing 2, 4, 6 to be assembled, approximately in front of their final position around a manikin 8. Then, we connect the lines sewing by "elastics" 10, 12, 14, 16, 18, 20, 22. The simulation tissue is then made in "weightlessness”. The pieces are move closer to each other and eventually stabilize edge to edge. It only remains to sew.
  • Simulation of the approximation of parts according to this method takes a lot of time because calculating the physical behavior of a moderately rigid fabric, like cotton, involves the use algorithms for the integration of Euler differential equations, or Runge-Kutta, with a time step significantly lower than the half-period of the lowest sustained oscillation of the differential equation (Exceeding this time step implies an exponential increase errors, and so the fabric explodes).
  • a classic garment (a shirt) represents approximately 1.5 m 2 of fabric. With an average mesh of 1 cm 2 , we obtain a mesh of this garment of about 15000 elements.
  • Each stage of the calculation requires the measurement of the forces applying to each element, and thus at least four measurements of the distance separating it from the neighbors (chain, frame and shears), which, in 3D, represents 12 subtractions, 12 multiplications, and especially 4 square root extractions. It is therefore necessary to make about 60000 square roots, and 180000 multiplications, at least, at each time step.
  • US-5,615,318 discloses a method in which a three-dimensional shape is first achieved by assembling the pieces of clothing. Then sections of a standard model of dummy are dilated until some of these sections dilated areas correspond to sections of the 3D form, and leaving spaces between the manikin and the garment at the level of others sections.
  • the calculation of the dilation is quite complex. It requires locate corresponding characteristic points on the manikin and on the pieces of each garment, and calculate lengths of arches characteristics passing through some of these characteristic points.
  • the characteristic arches pass for example through the neck, shoulders, or the chest.
  • a dilation factor is deduced for each of these arcs.
  • the piece of clothing and the model of manikin can be represented by data stored in a memory of a computer.
  • the pieces are first "painted" at the surface of the manikin, in a contiguous way, without respecting the geometry or the physical behavior of the tissue.
  • the parts are pressed against the manikin.
  • the pieces are deformed continuously, without tearing or intersection.
  • the compression energy of the fabric is minimized: the fabric is relaxed, or "re-inflated”. He goes from a state where this energy of compression is important to a state where it is reduced to a value compatible with the position of the garment on the manikin.
  • the 3D shape obtained is then ready for the simulation of draped fabric.
  • the method according to the invention has a computation time reduced compared to methods using tissue simulation for perform the assembly, sewing and donning of the garment, respecting at all times the dimensions and efforts in the fabric.
  • the invention avoids the preliminary steps of tissue simulation, then bringing the fabric closer to the body or manikin. It avoids in particular the calculations of the physical behavior of the tissue, before assembly. It solves the problems of calculation time, by removing the physical constraints associated with fabric simulation and the approximation of the fabric, and realizing or simulating directly seams (junction of garment parts).
  • the method according to the invention makes it possible to temporarily eschew respect for geometry (respect for lengths, angles of the fabric) to keep only the relations of continuity in topology: it only implements continuous deformations.
  • the invention makes it possible to avoid complex calculations of dilation that involve deformity of the manikin: in particular, relaxation involves a deformation of the garment, but not of the dummy.
  • the deposit of coins clothing on the surface of the manikin involves the establishment of a point-to-point relationship, or bijective and continuous, between the piece, or a part of that piece, or points representative of such a part, and a corresponding portion of the surface of the manikin, or points such a portion.
  • the deformations can be chosen so as to respect the topological relations of the Euclidean volume. The result of this choice is that the calculation of collisions of the fabric becomes useless.
  • the visualization may take place at a place distinct from the place of physical realization of the pieces of clothing, the data on the parts visualized garments being transferred, after visualization or simulation, on the place of realization of the pieces of clothing.
  • Another subject of the invention is a device for placing implementation of the method according to the invention.
  • This device may further comprise means for modify a selected piece of clothing or to replace a piece of clothing by another piece of clothing.
  • the means for making the cutting of the pieces of clothing can be controlled by a microcomputer, the means of data transmission then connecting the display device and the microcomputer.
  • the means of data transmission can by example to be part of a communication network.
  • mannequin a representation computing the volume (or useful part of the volume) of a manikin clothing or a human body.
  • the volume will be assumed to be described by its external surface, itself described as a triangular mesh, the vertices of the triangles of the mesh being points of this outer surface.
  • Other representations are possible (parametric external surface, or the volume defined by voxels (small volume elements)).
  • the manikin can therefore be represented by data stored in a memory of a computer or a system computer data, these data corresponding for example to a mesh triangular, or to a parametric outer surface, or to these voxels.
  • manikins can be defined, depending on different parameters, for example the age and / or sex of the person that the model represents. It is possible to provide various types of dummy, and make a selection of a particular type of dummy.
  • a database "mannequins" can be initially defined, in which a user can select a manikin particular, depending on the needs. Such a database can be previously stored in a computer system, as described later in this text.
  • U.S. Patent No. 5,850,222 discloses a modeling of manikin, usable in the context of the present invention.
  • “Clothing” means the computer representation of two-dimensional pieces (2D) of a garment, by their lines of finish and their cutting.
  • the finish of a room is the set of lines delimiting the apparent part of the piece once mounted.
  • the finish contains the lines stitching, the visible limits of the hems and fold lines or clamp.
  • the finish is associated with an implicit concept of interior.
  • the part of outer fabric to finish ie between finish and cut
  • the parts are supposed to be described with the x-axis corresponding to the warp direction of the fabric (the "straight line"), where they must be cut out.
  • the garment can therefore be represented by data stored in a memory of a computer or a system computer, these data corresponding for example to the finished lines and cutting.
  • various types of clothing can be defined, in function of different parameters, for example the age and / or sex of the person to whom the garment is intended. It is possible to predict various types of clothing, and to make a selection of a type of special clothing.
  • a database "clothing" can be initially defined, in which a user can select a particular garment, as needed. Such a database can also be previously stored in a computer system, as described later in this text.
  • a preliminary step of a method according to the invention can therefore consist in the selection and / or visualization of a type of manikin and a particular type of clothing.
  • the method according to the invention is first step of depositing pieces of clothing on the surface, or against the surface of the manikin. But we do not take into account, for this step, respect for the geometry or physical behavior of the tissue. We only take into account the relations of continuity, classical in topology; for example, deformations are carried out continuous, without tearing or intersection.
  • a part is applied 30, called "half-front", on the corresponding surface of the bust 32 of a dummy.
  • FIG. 5 represents a part 40 of shape initially complex, with the front and rear parts of a same half-room. Cutting makes it possible to isolate the part before 30 which is then applied to the manikin 32. Again, a cutting Corresponding data representative of the piece 40 is made.
  • this one or this one will apply this one or this one, not directly to the initial surface manikin, but to a surface deducted from the manikin or deducted from the outer surface that defines the manikin.
  • This result can be obtained by calculating the convex hull the usable area of the manikin or part of the dummy.
  • the garment does not fit anymore topologically on the surface of the manikin 48: the surface of the skirt, once it is applied in three dimensions, has two holes 43, 45, while the manikin's usable area (reduced to the legs and basin) has three holes 47, 49, 51. So we correct the surface of the manikin filling the space between the two legs. The method simpler is to use a mannequin already presenting this property. We can also automatically obtain this result by calculating the convex hull of the usable surface of the manikin or, more just yet (from the point of view of computing time), by calculating the surface resulting from the accumulation of convex polygons of sections horizontal legs.
  • FIG. 6 represents the application of a panel 44 of skirt to a surface 46 deduced from the manikin 48. The result is equivalent to introducing both legs into a sheath,
  • every point of the surface of the manikin or (in the case described above with reference to Figure 6) of the area deduced from manikin is associated with one and only one point of the garment or the piece of clothing to apply.
  • Figure 2 corresponds to a homology between a room half-front and the corresponding surface of the manikin, and Figure 6 to a homology between a skirt panel and a surface deduced from dummy.
  • Figure 5 cutting beforehand the complex part makes it possible to simplify the calculation of the homology.
  • a mesh of clothing or 2D document, or corresponding representative data suitable for support the simulation of the fabric, for example a triangular mesh.
  • the garment is then topologically complete, sewn and donned on the mannequin.
  • it is generally extremely compressed and distorted (it can be stretched in places for example) and this physically unfeasible. This is normal since the garment is pressed against the manikin; indeed, as already explained above, the initial steps of the method according to the invention do not take respect for the mechanical and / or geometrical aspect of the constituent material of the garment.
  • a method will now be described, which helps to build a homology between the manikin and a piece of clothing.
  • the parts of the manikin are described in elliptical coordinates.
  • the axis AA 'most adapted in the case of the example of figure 8 (trunk of the manikin), one chooses for example an axis passing on the one hand by the center of symmetry of a first section S 1 (passing through the neck) and secondly by the center of symmetry of a second section S 2 , here an abdominal section.
  • Each point M is thus described by a set of coordinates r, ⁇ , ⁇ , where r denotes the distance from the point M to the center O of the coordinate reference.
  • ⁇ and ⁇ make it possible to locate the point M respectively with respect to a horizontal plane and a vertical plane of reference.
  • One volume is then isolated topologically counterpart to the piece, using the characteristic lines of the dummy. These characteristic lines define surfaces of the manikin that can be laid flat.
  • Figure 9B shows the front upper part of a mannequin, cut along certain characteristic lines.
  • This projection is in bijection with the surface (corrected by the maximum radius) of the manikin.
  • a projection is made beforehand, on a plan, of the selected area of the manikin.
  • a first bijection between the surface (in 3D) of the manikin (or data representative of this surface) and its projection on a plane.
  • the deformation algorithm used consists, at each step, to first move the points of the contour to a new position closer to the desired contour, while respecting the constraint of non-flipping triangles, while ensuring that the new contour remains a simple polygon, that is to say does not auto-intersect. he There are two possibilities for triangles to be superimposed: by flipping a triangle, or in the case of a complex polygon. Then all the other points of the triangulation are moved to the location of the average points surrounding them, in respecting the constraint of non-inversion of the triangles. For each point, is calculated the center of gravity of its neighbors, and this point follows this centroid. The deformation of the triangular mesh is therefore based on effects of average displacements.
  • the initial and final contours are sufficiently similar so that it is often unnecessary to respect the constraint "simple polygon". It is sufficient if the initial triangulation is reduced, by a scale factor, to fit within its projection. We can then go in a straight line, step by step, from the outline of the mesh to the corresponding point of the projection.
  • a combination of these two bijections allows to clothe the garment (or its innermost layer) against the surface of the manikin, or again to put the garments on the surface of the manikin, since each point of the piece of clothing considered is in correspondence with a point on the surface of the manikin.
  • the layers, constituting the garment are placed in 3D in successive layers separated by a sufficiently small thickness to preserve the bijectivity. This thickness is related to the minimum radius of curvature of the surface of the dummy.
  • the thickness separating two successive layers is chosen very small before the radius of curvature of said portion of the manikin, and the sum of successive thicknesses is less than this same radius of curvature.
  • the innermost layer is preferably pressed against the mannequin; in other words, the thickness separating this inner layer from the surface of the manikin is nil.
  • Figure 12 summarizes the plating operations of a garment against the manikin that are actually made on the data representative parts of clothing and manikin.
  • a first step (S26) the volume of the manikin a part topologically homologous to the piece.
  • step S28 this part is projected in two dimensions, on a plane.
  • the triangulation of the piece of clothing, obtained previously or simultaneously to previous operations, is then deformed (step S29).
  • the data obtained during these last two stages can be stored.
  • step S30 the different layers of garment against the surface of the manikin.
  • seams are made (joining pieces of clothing (or their representative data) according to their lines of sewing: step S31).
  • the garment is then ready for relaxation.
  • the purpose of relaxation is to bring back each piece of clothing towards his state of equilibrium. More precisely, the energy state tissue, initially very high due to topological treatment explained above, is brought back to a value close to the minimum, compatible with the launch of the simulation of the material.
  • Different algorithms are possible. We can use a model more or less simplified and / or realistic tissue simulation (managing collisions), by direct introduction into such a model.
  • the dominant energy factor for a any displacement
  • the tensile strength is usually at least 100 times larger than resistance to shear, and even greater with respect to bending resistance, for typical curvatures. Curvature resistance becomes no negligible if you try to bend the fabric at a sharp angle.
  • the invention it is also possible to treat the problem from large areas, then "go down" to small areas. For example, one homogeneously “deforms" first of all the garment, preferably by seeking a minimum of traction energy (the examples of energy calculation are given below). Then we deform a set of large sub-parts of the garment, then sets of smaller and smaller parts ... etc.
  • the size of a part can be defined according to the number of triangles that it contains: thus, the average number of triangles of each part of the first set is chosen larger than the average number of triangles of each part of the set next, and this second number is itself larger than the average number of triangles of each part of a third set ... etc.
  • the crumpling is avoided by using "soft" deformations of space, that is to say, preferably continuous, differentiable and more preferably whose derivative is continuous (function C 2 , from a mathematical point of view) .
  • Deformation chosen is a deformation (continuous and differentiable) of space, instead of simply a deformation of the fabric. So we move each point according to its position in space, and not according to its position relative to its neighbors. The deformations can then be chosen to respect the topological relations of the volume Euclidean. The result of this choice is that the calculation of tissue collisions becomes useless: the lining can no longer cross the canvas, the sleeve does not can no longer touch the small side, the garment can not penetrate the mannequin ... etc.
  • the triangulation is preferably chosen dense enough so that the deformation of the space around a elementary triangle can be considered linear.
  • the mannequin remains, him, undistorted.
  • the subdivision of the part of clothing (or data corresponding) to be treated may be to isolate related areas globally compressed or stretched. An arbitrary related breakdown works just as well, at the cost of a slight degradation of performance.
  • the garment is sewn, entity on the manikin, and it suffers only weak constraints, compatible with the launch of a realistic simulation of the fabric.
  • the traction energy of each piece is calculated in relation to at the initial position of this piece, in two dimensions.
  • FIG. 14 represents steps of a method of relaxation according to the invention. Again, these steps are performed on the memorized data of clothing.
  • a first set of parts is defined according to its size (step 340).
  • a deformation function is then selected for each field line (step S341). This function is optimized according to of a criterion for minimizing energy (step S342). Function energy has of course been previously defined.
  • step S344 we define another subset smaller parts (step S344) and a function of deformation is again chosen according to the field lines, and is optimized.
  • the algorithm stops when the operator judges the result satisfactory, or after a predetermined number of iterations (step S343).
  • a triangular mesh point is moved without reversing triangles, provided that the displacement is limited within a polygon delineating all the points that see directly from the inside, the outer contour of the triangles.
  • Respecting the non-reversal constraint therefore consists in test the direction of rotation of the triangles adjacent to the point to be moved considered, and, if a reversal is detected (a direction of rotation which reverses), try a lower displacement (for example half initial displacement). In case of total failure, we can try to Unlock the situation by moving the point randomly.
  • FIG. 19 is a general diagram of a method according to the invention, whose operations described above can be part of.
  • a first step (S10), the shapes, or subassemblies of clothing, are defined flat, in two dimensions. At during this stage can also be defined positions assembly of the different parts.
  • This step can be implemented using the software marketed by Lectra under the designation "Modaris”.
  • Step S20 groups the dressing operations of the manikin, as already described above.
  • the pieces of clothing after having been selected, are placed against the surface of the manikin without consider their physical parameters. Then, the operation takes place junction parts between them, then relaxation.
  • a simulation step (S40) can then take place, by example by the finite element method.
  • a simulation method which can be used is described by D. Baraff et al. "Large Steps in Cloth Simulation”: Sigraph 1998, Computer Graphics Conference Proceedings, Addison-Wesley, ISBN 0-201-30988-2.
  • the "portability" of the garment can then be analyzed (step S50): the operator can then visualize the garment, analyze the configuration or overall impression. If something does not not satisfied (a particular piece of clothing is, for example, badly adapted to a part of the body), it is possible to select a new piece of clothing replacing the previous one, or else modify the piece of clothing, for example using the software "Modaris" of the applicant.
  • the manikin is dressed again (step S20).
  • the process is then reiterated from the stage where the pieces are plated on homologous forms of the manikin and laid flat.
  • the edges of the part are joined with the neighboring parts.
  • the relaxation process can then be performed again, and will act on all the garment to bring it to its position of balance on the dummy.
  • all interactions can be taken into account possible between the modified part and all other parts of clothing.
  • step S60 the manufacture of the garment (step S60) can take place.
  • Figure 20 is a detailed flowchart showing a dressing method according to the invention.
  • a first step (S21) the flat pattern (two-dimensional representation) and the manikin are selected.
  • step S22 It can then be checked (step S22) if there is compatibility topological relationship between the type of garment selected and the corresponding dummy. For example, it can be checked whether the number of holes in the garment corresponds to that of that part of the dummy. If there is no compatibility, we can proceed with the alteration of the manikin (step S23), for example by melting parts of the manikin or by determining a surface deduced from the manikin, as already explained above.
  • Steps S24 (S241-S244), S25 and S26 are performed for each pair consisting of a piece of clothing and a surface or part of the manikin.
  • step S27 this which determines the number of points to be matched with points of the manikin, as well as flattening the surface corresponding manikin (step S28).
  • the contour of the part can then be brought to the contour of the projection of the manikin (step S29): the mesh is therefore gradually deformed.
  • This step S33 completes the placement of the garment on the dummy.
  • the garment can then be relaxed (step S34). comes then the mechanical simulation step (S38), which allows, for a tissue given, to find the right drape, and that eliminates the last deformations. We obtain a realistic image of the garment put on the manikin (S39).
  • FIGS. 21A and 21B An example of a device, illustrated in FIGS. 21A and 21B, will now be given, for the implementation of the method according to the invention.
  • This device is generally designated by reference 119.
  • Fig. 21A globally represents a graphics station comprising a microcomputer 120 configured appropriately for processing, according to a method according to the invention, of models of mannequin and garment parts, a display device 122 and control devices (for example a keyboard 124 and a mouse 125).
  • the microcomputer 120 includes a calculating section with all electronic components, software or other, necessary for the simulation of the dressing of a manikin with pieces of clothing.
  • the microcomputer may comprise calculation means, to calculate for example the projections of the selected parts of the manikin, or to calculate values of the field lines of if they are not already associated with the manikin selected, or to perform the triangulation and their deformations, and / or the operations of application of the garment to dummy. These calculation means also make it possible to carry out the energy calculations (traction energy) and minimization calculations of these energies during relaxation ..
  • the microcomputer 120 can be programmed to generate mannequin shapes. or such forms can be previously stored, for example in the memory 128. Even forms of clothing pieces can also be previously stored. In this case, means are provided which select a manikin and one or more pieces of clothing. These elements may have been obtained by CAD or by automatic generation systems.
  • the microcomputer 120 can also be connected to other peripheral devices, such as, for example, devices 132. It may be connected to an electronic network, for example example Internet or Intranet type, to send data mannequins and / or clothing.
  • peripheral devices such as, for example, devices 132.
  • It may be connected to an electronic network, for example example Internet or Intranet type, to send data mannequins and / or clothing.
  • the operator can then visualize the garment, analyze the configuration or overall impression, and if something does not not satisfied, he can select a new piece of clothing replace the previous one, or modify a piece of clothing.
  • FIG. means 136 of cutting table type on which can be positioned sheets 138 of material to be cut, for example fabric, means 140 for positioning and moving a tool 150 above this table, and means 142 of steering or controlling these positioning and cutting.
  • the control means are computer means. they may further include means 144 for viewing the room to be cut, whose data has been transmitted and / or means of viewing the area of the workpiece positioned on the cutting table.
  • the data concerning the parts, which have been validated according to the invention by simulation using the device 119, can for example be transmitted to the control means 142 of the cutting device via a link 146 of a communication network electronic. It is also possible to memorize the data on a floppy disk, and then load them into a memory means 142 for controlling the cutting device.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Processing Or Creating Images (AREA)
  • Details Of Garments (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Toys (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Claims (32)

  1. Verfahren zum bildlichen Darstellen eines Kleidungsstücks, welches aus Kleidungsstückteilen zusammengesetzt ist, und durch in einem Speicher eines Computers (119) abgelegte Daten verkörpert wird, und welches Nahtlinien aufweist, auf einem Schneiderpuppenmodell, welches durch in einem Speicher eines Computers (119) abgelegte Daten verkörpert wird, und wobei dieses Verfahren umfasst:
    das Anbringen der Kleidungsstückteile (30, 34, 36, 38, 40, 44, 50) auf der Oberfläche des Schneiderpuppenmodells (32, 42) oder auf einer von dem Schneiderpuppenmodell abgeleiteten Oberfläche (48),
    das Verbinden der Kleidungsstückteile längs ihrer Nahtlinie,
    das Entspannenlassen jedes Kleidungsstückteils ausgehend von seiner Position auf der Oberfläche der Modellpuppe in die Gleichgewichtsposition auf dem Schneiderpuppenmodell.
  2. Verfahren nach Anspruch 1, wobei das Anbringen der Kleidungsstückteile auf der Oberfläche des Schneiderpuppenmodells das Aufstellen einer Beziehung zwischen zumindest einem Abschnitt eines Kleidungsstückteils und einem entsprechenden Abschnitt der Oberfläche des Schneiderpuppenmodells umfasst, welche bijektiv und kontinuierlich ist.
  3. Verfahren nach Anspruch 1 oder 2, wobei das Anbringen der Kleidungsteilstücke auf der Oberfläche des Schneiderpuppenmodells das Herstellen einer Beziehung zwischen für ein Kleidungsstückteil repräsentativen Punkten und Punkten eines entsprechenden Abschnitts der Oberfläche des Schneiderpuppenmodells umfasst, welche bijektiv und kontinuierlich ist.
  4. Verfahren nach Anspruch 2 oder 3, wobei das Aufstellen einer Beziehung zwischen einem Kleidungsteilstück und einem entsprechenden Abschnitt der Oberfläche des Schneiderpuppenmodells umfasst, welche bijektiv und kontinuierlich ist:
    die Auswahl eines Teils des Schneiderpuppenmodells, welches zu dem Kleidungsteilstück topologisch homolog ist;
    das Projizieren dieses Teils des Schneiderpuppenmodells auf eine Ebene;
    das Verformen des Stücks, um es mit der Projektion zusammenfallen zu lassen.
  5. Verfahren nach Anspruch 4, bei welchem:
    man eine Aufteilung des Kleidungsteilstücks in Dreiecke erzeugt;
    man die Dreiecksaufteilung des Stücks verformt, um es mit der Projektion zusammenfallen zu lassen.
  6. Verfahren nach Anspruch 5, wobei die Dreiecksaufteilung des Stücks verformt wird, durch:
    Verschieben von Punkten, welche einen Umriss des Stücks definieren, zu Punkten eines Umrisses der Projektion hin;
    Verschieben von Punkten, welche Scheitelpunkte von Dreiecken sind, im Innern des Umrisses des Stücks.
  7. Verfahren nach Anspruch 5 oder 6, wobei die Dreiecksaufteilung unter Berücksichtigung einer Zwangsbedingung des Nichtwendens der Dreiecke der Dreiecksaufteilung des Teils verformt wird.
  8. Verfahren nach einem der Ansprüche 1 bis 7, wobei das Entspannen eines Kleidungsstückteils umfasst:
    das Unterteilen des Kleidungsstückteils in eine erste Einheit von Teilen,
    das Verformen dieser Einheit von Teilen unter Minimieren einer Energiefunktion des Kleidungsstückteils.
  9. Verfahren nach Anspruch 8, wobei das Entspannen des Kleidungsstückteils femer umfasst:
    das Unterteilen des Kleidungsstückteils in eine zweite Einheit von Teilen, welche kleiner als die Teile der ersten Einheit sind,
    das Verformen dieser zweiten Einheit von Teilen unter Minimieren einer Energiefunktion des Kleidungsstückteils.
  10. Verfahren nach einem der Ansprüche 8 oder 9, wobei die Energiefunktion die Energie des mechanischen Zugs des Kleidungsstückteils repräsentiert.
  11. Verfahren nach einem der Ansprüche 8 bis 10, wobei die Energiefunktion des Kleidungsstückteils bezogen auf die Position dieses Teils in zwei Dimensionen und in Abhängigkeit von einem Wert für die Steifigkeit K eines Gewebes berechnet wird.
  12. Verfahren nach Anspruch 8 bis 11, wobei das Verformen der Einheiten von Teilen umfasst:
    ein Verschieben längs von Feldlinien, welche von dem Schneiderpuppenmodell ausgehen,
    ein Verschieben längs der Oberfläche des Gewebes in die anderen Richtungen.
  13. Verfahren nach Anspruch 12, wobei Feldlinien entsprechende Daten vorher abgelegt werden.
  14. Verfahren nach einem der Ansprüche 9 bis 13, wobei die Teile der ersten und zweiten Einheiten von Teilen zusammenhängende Bereiche des Kleidungsstückteils sind.
  15. Verfahren nach einem der vorherigen Ansprüche, wobei ein Kleidungsstückteil einen Faltenschnitt (40) enthält, welcher vor dem Anbringen des Teils auf der Oberfläche des Schneiderpuppenmodells (32) geschlossen wird.
  16. Verfahren nach einem der vorherigen Ansprüche, wobei zunächst zwei Kleidungsstückteile (34, 36) miteinander verbunden werden, bevor sie auf der Oberfläche des Schneiderpuppenmodells (32) angebracht werden.
  17. Verfahren nach einem der vorherigen Ansprüche, wobei eines der Kleidungsstückteile (40) vor dem Anbringen auf der Oberfläche des Schneiderpuppenmodells (42) zunächst in zumindest zwei Unterteile geteilt wird.
  18. Verfahren nach einem der vorherigen Ansprüche, welches ferner umfasst:
    das Auswählen eines der entspannten Kleidungsstückteile, welches als zu ersetzender Teil bezeichnet wird,
    das Auswählen eines anderen Kleidungsstückteils, welches als Ersatzteil bezeichnet wird,
    das Anbringen dieses Ersatzteils auf der Oberfläche des Schneiderpuppenmodells,
    das eventuelle Verbinden dieses Ersatzteils mit den anderen Teilen längs der Nahtlinien,
    das Entspannen der Gesamtheit der Kleidungsstückteile ausgehend von ihrer Position auf der Oberfläche der Puppe hin zu ihrer Gleichgewichtsposition auf dem Schneiderpuppenmodell.
  19. Verfahren nach einem der vorherigen Ansprüche, welches ferner umfasst:
    das Auswählen eines der entspannten Kleidungsstückteils, welches als zu veränderndes Teils bezeichnet wird,
    das Verändern dieses Teils,
    das Anbringen dieses veränderten Teils auf der Oberfläche des Schneiderpuppenmodells,
    das eventuelle Verbinden dieses veränderten Teils mit den anderen Teilen längs der Nahtlinie,
    das Entspannen der Einheit der Kleidungsstückteile ausgehend von ihrer Position auf der Oberfläche des Schneiderpuppenmodells hin zu ihrer Gleichgewichtsposition auf dem Schneiderpuppenmodell.
  20. Verfahren nach einem der vorherigen Ansprüche, welches femer einen Schritt der mechanischen Simulation des Kleidungsstücks umfasst.
  21. Verfahren zum Herstellen von Kleidungsstückteilen, welches umfasst:
    die zuvorige bildliche Darstellung des Kleidungsstücks auf einem Schneiderpuppenmodell gemäß einem Verfahren nach einem der Ansprüche 1 bis 20,
    die Herstellung der Kleidungsstückteile.
  22. Vorrichtung (119) zum bildlichen Darstellen von Kleidungsstückteilen auf einem Schneiderpuppenmodell, mit:
    Mitteln (120, 126, 128, 132) zum Berechnen, um:
    Kleidungsstückteile auf der Oberfläche des Schneiderpuppenmodells oder auf einer von dem Schneiderpuppenmodell abgeleiteten Oberfläche anzubringen,
    Zusammenfügen der Kleidungsstückteile längs ihrer Nahtlinie,
    Bewirken einer Entspannung der Kleidungsstückteile ausgehend von ihrer Position auf der Oberfläche des Schneiderpuppenmodells hin zu ihrer Gleichgewichtsposition auf dem Schneiderpuppenmodell,
    Mitteln (122) zum bildlichen Darstellen, um das Schneiderpuppenmodell wie auch die Kleidungsstückteile auf dem Schneiderpuppenmodell bildlich darzustellen.
  23. Vorrichtung nach Anspruch 22, welche es ferner erlaubt, zuvor das ausgewählte Schneiderpuppenmodell und/oder die ausgewählten Kleidungsstückteile bildlich darzustellen.
  24. Vorrichtung nach Anspruch 22 oder 23, welche ferner Mittel (24, 125) umfasst, um ein ausgewähltes Kleidungsstückteil zu ändern und/oder um ein Kleidungsstückteil durch ein anderes Kleidungsstückteil zu ersetzen.
  25. Vorrichtung nach einem der Ansprüche 22 bis 24, welches femer Mittel (124, 125) umfasst, um Kleidungsstückteile aus einer zuvor erstellten Datenbasis für Kleidungsstücke auszuwählen.
  26. Vorrichtung nach einem der Ansprüche 22 bis 25, welche ferner Mittel (124, 125) zum Auswählen eines Schneiderpuppenmodells aus einer Basis von zuvor erstellten Daten für Schneiderpuppen umfasst.
  27. Vorrichtung nach einem der Ansprüche 22 bis 26, welche femer Mittel zum Speichern von Daten umfasst, welche sich auf Kleidungsstückteile und/oder Schneiderpuppenmodelle beziehen.
  28. Vorrichtung zum Herstellen von Kleidungsstückteilen, mit:
    einer Vorrichtung zum bildlichen Darstellen (119) gemäß einem der Ansprüche 22 bis 28,
    Mitteln (136, 138, 140, 150) zum Bewirken des Zuschneidens von Kleidungsstückteilen,
    Mitteln (146) zum Übertragen von Daten zwischen der Vorrichtung zur bildlichen Darstellung (119) und den Mitteln zum Bewirken des Zuschneidens der Kleidungsstückteile.
  29. Vorrichtung nach Anspruch 28, wobei die Mittel (140, 150) zum Bewirken des Zuschneidens der Kleidungsstückteile von einem Mikrocomputer (142) angesteuert werden, und wobei die Mittel (146) zum Übertragen von Daten die Vorrichtung zur bildlichen Darstellung (119) und den Mikrocomputer miteinander verbinden.
  30. Vorrichtung nach Anspruch 28 oder 29, wobei die Mittel (146) zum Übertragen von Daten Teil eines Kommunikationsnetzes sind.
  31. Computerprogramm, welches die Anweisungen umfasst, um ein Verfahren gemäß einem der Ansprüche 1 bis 21 auszuführen.
  32. Träger, der von einem Computersystem gelesen werden kann, das Daten oder Informationen für das Ausführen eines Verfahrens gemäß einem der Ansprüche 1 bis 21 umfasst.
EP00967981A 1999-10-08 2000-10-09 Vefahren un vorrichtung zur simulation und darstellung der kleidung eines mannequin Expired - Lifetime EP1137349B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9912563 1999-10-08
FR9912563A FR2799556B1 (fr) 1999-10-08 1999-10-08 Procede et dispositif de simulation et de representation de l'habillage d'un mannequin
PCT/FR2000/002798 WO2001026496A1 (fr) 1999-10-08 2000-10-09 Procede et dispositif de simulation et de representation de l'habillage d'un mannequin

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EP1137349B1 true EP1137349B1 (de) 2004-01-14

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US6968297B1 (en) 2005-11-22
DE60007720T2 (de) 2005-01-13
FR2799556B1 (fr) 2002-01-25
CA2354708A1 (en) 2001-04-19
CA2354708C (en) 2008-01-15
FR2799556A1 (fr) 2001-04-13
JP2003511576A (ja) 2003-03-25
WO2001026496A1 (fr) 2001-04-19
ES2214324T3 (es) 2004-09-16
EP1137349A1 (de) 2001-10-04

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