JP5632389B2 - Knit design equipment, design method, design program - Google Patents

Description

  The present invention relates to knit design, and more particularly to conversion from pattern data (pattern data) to knitting data.

  Japanese Patent Application Laid-Open No. H10-228707 discloses that knitting outer shape data (tissue data) is generated based on knitting pattern data, and design data such as intarsia or jacquard is input therein. The pattern data is vector data, the unit of which is length, and is data for each part of the knitted fabric. By the way, in order to convert the pattern data into the number of stitches, in addition to the vertical and horizontal sizes of the stitches, data such as the expansion / contraction ratio in finishing and the degree of deformation of the knitted fabric due to its own weight are necessary. In this regard, Patent Document 2 discloses that the vertical and horizontal sizes of a finished stitch are measured, and pattern data is converted into the number of stitches based on this. However, even if the method of Patent Document 2 is used, considerable skill is required to convert the pattern data into the number of stitches. For example, the knitted fabric is deformed by its own weight or the like, and for example, the neck hole has a characteristic that it can be easily spread laterally by the weight of a sleeve, and a thin knitted fabric such as a sleeve can easily stretch.

  When the pattern data is converted into the number of stitches, it is necessary to form a molding line for realizing increase and decrease as the next step. Here, it is necessary to arrange the fashion marks accompanying the increase and decrease so that the fashion marks look regular and beautiful, and it is also necessary to arrange the silhouettes of the parts. In addition, the molding line needs to be easily knitted so that it can be knitted efficiently with a flat knitting machine and considering the load on the yarn. Therefore, considerable skill is required to create a molding line. For these reasons, a division of labor is generally performed in which a designer creates pattern data and a knit engineer converts it into the number of stitches.

JP-A-7-70891 Patent 2676182

A basic object of the present invention is to make it possible to easily create stitch unit data from pattern data.
An additional problem with the present invention is to assist in the selection of the optimal molding line.
Another additional problem of the present invention is to make it possible to feed back the created stitch unit data to subsequent designs.

The knit design device of the present invention is a knit design device for converting knitted pattern data into stitch unit data.
First pattern data generating means for receiving an input of a finished size of each part of the knitted fabric and generating first pattern data of each part representing the size input as vector data;
Second pattern data generating means for converting the first pattern data of each part into second pattern data representing a size proportional to the number of stitches as vector data;
Raster data generation means for generating raster data representing each part in stitch units by converting the second pattern data of each part into the number of stitches and generating a molding line at the side edge of the part; and Is provided.

The knit design method of the present invention uses a knit design device to convert knitted pattern data into stitch unit data.
Steps for receiving the input of the finished size of each part of the knitted fabric by the knit design device and generating first pattern data of each part representing the size input as vector data;
A step for converting the first pattern data of each part into second pattern data representing a size proportional to the number of stitches as vector data by the knit design device;
The knit design apparatus converts the second pattern data of each part into the number of stitches and generates raster data representing each part in stitch units by generating a molding line at the side edge of the part. Steps are provided.

The knit design program of the present invention uses a knit design device to convert knitted pattern data into stitch unit data.
In knit design equipment,
A step for accepting an input of a finished size of each part of the knitted fabric and generating first pattern data of each part representing the size inputted as vector data;
Converting the first pattern data of each part into second pattern data representing a size proportional to the number of stitches as vector data;
The second pattern data of each part is converted into the number of stitches, and a molding line is generated at the side end portion of the part, thereby executing a step for generating raster data representing each part in stitch units. It is characterized by that.

  In the present invention, first pattern data is first generated as vector data. This data expresses the finished size (indicated dimensions) of the part, and it is not necessary to consider the vertical and horizontal sizes of the stitches and the expansion and contraction in finishing after knitting. As described above, the first pattern data is data that expresses what kind of part is necessary, and it is not necessary to consider problems specific to the knit such as expansion and contraction and deformation of the knitted fabric. Next, the first pattern data is converted as vector data into second pattern data representing a size proportional to the number of stitches. In this way, the problem that the size does not match the indicated dimension is solved in the process of converting the first pattern data into the second pattern data. Then, the second pattern data is converted into the number of stitches of the part, and a molding line is generated at the side end portion of the part, thereby converting the part into raster data (stitch unit data) representing the part in stitch units. Then, raster data is converted into knitting data by a knit design device or another design system. As a result, when the designer designs the first pattern data, a molding line that can be easily converted into raster data and that is regular and easy to knit can be generated.

Preferably, the raster data is converted into knitting data of the knitted fabric by the converting means.
Preferably, there is further provided an editing means for changing the molding line by accepting editing of the raster data in a state where the raster data and the second pattern data are displayed superimposed on a monitor. In this way, when there are many molding lines corresponding to the second pattern data, the optimum molding line can be easily selected.

  Preferably, an inverse conversion unit is further provided for inversely converting the raster data into the second pattern data. If it does in this way, the 2nd pattern data with respect to the design with high evaluation in a market will be obtained, it will be used as data of what kind of molding line is generated from the 2nd pattern data, and it becomes reference of subsequent designs. be able to.

Block diagram of the knit design device of the embodiment Flow chart showing conversion from pattern data for fabric to knitting data in the embodiment The flowchart which shows the conversion from the knitting data in the embodiment to the pattern data for knitting The figure which shows the pattern data for fabrics The figure which shows the pattern data for knit which converted the data of FIG. Diagram showing knit pattern data The figure which shows the pattern data for knitting and the candidate of a molding line in piles Figure showing the pattern data for knit and the molding line The figure which shows the design result with execution example and conventional example Diagram showing knitting data or raster data converted to pattern data and overlaid with the original knit pattern data

  In the following, an optimum embodiment for carrying out the invention will be shown. The scope of the present invention should be construed in consideration of the possibility of modification by well-known techniques in the description of the scope of claims.

  1 to 10 show a knit design apparatus 2, a knit design method, and a knit design program of the embodiment. In FIG. 1, 4 is a bus, 6 is a CPU, 8 and 10 are memories, the memory 8 stores programs such as a knit design program, and the memory 10 stores data such as design data and knitting data. Reference numerals 12 and 16 denote interfaces. Reference numeral 12 denotes an interface with an external storage, which inputs and outputs to an external storage 14 such as a CD-ROM or USB memory, and the network interface 16 connects to the Internet or the like. The knit design program is stored in the external storage 14 and stored in the memory 8.

  18 is a color monitor, 20 is a mouse, 22 is a keyboard, and 24 is a color printer. The knit design apparatus 2 is a computer, and implements the pattern data creation unit 26 to the inverse conversion unit 38 for fabric using the bus 4 to the color printer 24. The fabric pattern data creation unit 26 creates pattern data as vector data for each part of the knitted fabric, for example, the front body, the back body, and the sleeve. For example, when a designer inputs part designation dimensions, part attributes, types, and the like from the keyboard 22 or the like, pattern data (first pattern data) for the fabric is created. The part attributes include the type of parts such as the front body, back body, and sleeves, and parts within the parts such as arm holes, neck holes, and hem rubber. The pattern data for the fabric represents each part in actual size, for example.

  In parallel with the creation of the pattern data for the fabric, for example, data such as the type of yarn to be used and the material of the yarn such as the thickness, the gauge of the flat knitting machine, and the type of finishing are input. These data may be input when the pattern data for the fabric is converted into the pattern data for the knit (second pattern data).

  The knit pattern data creation unit 28 converts the fabric pattern data into knit pattern data (second pattern data), which is vector data representing the number of stitches. For this conversion, the macro storage unit 30 is used, and the macro storage unit 30 stores, for example, the expansion / contraction rate (reduction rate) by the finishing process after knitting and the deformation rate for each part. The reduction ratio may be stored for each combination of material and finishing type, or simply for each finishing type. As a deformation for each part, the neck hole may be pulled by the sleeve and easily stretched to the side, and as a deformation for each part type, a long knitted fabric such as a sleeve may be easily stretched. The macro storage unit 30 stores correction factors for these. Note that which part of the part is the neck hole is described as an attribute of the part.

  Preferably, a large number of data for each knitted fabric size and each body shape is generated for one standard indicated dimension. When changing the size of the knitted fabric, it is not sufficient to simply deform the standard pattern data, and the macro storage unit 30 stores data on how to change the height and width of the parts. Further, the macro storage unit 30 also stores data indicating which size of which part is changed at what ratio according to the body shape. Then, the knit pattern data creating unit 28 uses the attribute and size (indicated dimensions) in the pattern data for the fabric and uses the macro stored in the macro storage unit 30 to convert the pattern data for the fabric into the pattern data for the knit. Convert to A database may be used in place of the macro storage unit 30.

  The raster data generating unit 32 converts the knit pattern data into the number of stitches in the length direction and the width direction, and generates a molding line at the side end of the part. In order to convert the number of stitches, for example, the vertical and horizontal sizes of the stitches, or the number of stitches per unit length and per unit width are input from an arbitrary stage. When the vertical and horizontal sizes of the stitches are applied to the pattern data for knit, the number of stitches of the parts, that is, the number of stitches in each course in which the stitches are arranged horizontally, and the number of courses in the length direction are determined. When the number of stitches is determined, it is determined how many stitches are to be increased or decreased in which course. The molding line is an increase / decrease line, and there are cases where the increase / decrease is performed inside the part and cases where the decrease / increase is performed at the end of the part. If you increase or decrease inside the part, a fashion mark will appear at that point. Whether to increase / decrease at the inside of the part or increase / decrease at the end is input from the keyboard 22 or the like at an arbitrary stage. The raster data generation unit 32 generates a molding line corresponding to the shape (generally linear) of the side end in the pattern data for knit. The molding line connects short line segments and has a curved appearance. Then, the raster data generating unit 32 generates a molding line in which fashion marks appear regularly, knitting with a flat knitting machine is easy, and the silhouette of parts is beautiful, according to rules based on experience. Raster data is data representing the shape of a part in stitch units.

  In general, there are a plurality of molding line candidates, and even when there is only one candidate, the optimal candidate is not always generated from the beginning. The combining unit 34 superimposes the raster data and the knit pattern data and displays them on the color monitor 18. In this state, the editing unit 35 allows the designer to edit the molding line using the mouse 20 or the keyboard 22.

  A knitting data creation unit 36 converts raster data into knitting data. In addition to data that can directly drive a flat knitting machine (knitting data in a narrow sense), the knitting data represents the type of stitch and can be edited and converted to knitting data in a narrow sense by the knit design device 2 or the like (knitting in a broad sense) Data). The inverse conversion unit 38 inversely converts the knitting data or the raster data serving as the basis thereof into pattern data for knit. For example, a combination of knit pattern data and raster data is added to the macro storage unit 30 or the like in accordance with the designer's input.

  2 and 3 show conversion from pattern data for fabric to raster data. In step 1 of FIG. 2, pattern data for fabric is input. This data is vector data and represents the size of the part. The designer inputs the specified dimensions and part attributes, part type, part size, material, knitting machine gauge, etc. Generated by the data creation unit 26. By converting this data in consideration of the reduction ratio for each part or each part and each knitting structure, and deformation after knitting at the neck hole, sleeve, etc., pattern data for knitting can be obtained (step 2). The knit pattern data is vector data and represents a size proportional to the number of stitches. In the case where a plurality of design data is developed for each size and body shape, the data is developed into a plurality of knit pattern data in consideration of the correction to the length and width according to these. For these processes, the macro stored in the macro storage unit 30 is used and executed by the pattern data creation unit 28 for knit.

  Enter the number of stitches per knitting length and the number of stitches per knitting width, or the vertical and horizontal sizes of the stitches. Further, the raster data generation unit 32 converts the knit pattern data into the number of stitches in the length direction and the width direction, and approximates the outer shape of the knit pattern data with a molding line. In this way, raster data generation unit 32 generates raster data (step 3). This data is stitch unit data. In step 4, the raster data and the knit pattern data are displayed in an overlapping manner so that the designer can correct the raster data.

  If there is additional design data such as intarsia or jacquard, these data are added (step 5). The raster data is converted into knitting data (step 6). In accordance with the knitting data obtained as described above, a knitted product is obtained by knitting the parts individually or so that the parts are joined together and finishing.

  It would be useful to be able to feed back designs that were well received in the market to subsequent design work. Therefore, in step 7 of FIG. 3, the knitting data of the popular design is converted into raster data. If raster data is stored, step 7 may be omitted. In step 8, the raster data is converted into knit pattern data. Then, the original knit pattern data is displayed on the color monitor or the like, for example (step 9). In this way, it is possible to know what is suitable as pattern data for knit, and it can be used as a reference for subsequent designs. Further, the macro storage unit 30 or the raster data generation unit 32 stores the data as a preferable example of the knit pattern data (step 10), which can be used as a reference when converting to the knit pattern data or converted into the raster data. It can be a reference when doing.

  4 to 9 show the design process. FIG. 4 shows the pattern data 40 for the fabric, 41 is the front body, 42 is the back body, each showing the half of the body, and 43 is the sleeve. This data is converted into the pattern data 50 for knit shown in FIG. 5. 51 is a front body, 52 is a back body, and 53 is a sleeve. In the pattern data 50 for knit in FIG. 5, the shape of the body, the shape of the armhole, the shape of the neckhole, etc. are changed.

  FIG. 6 shows a part of pattern data for knit. The pattern data 60 for knitting is configured by connecting vectors in order. The scale in the figure represents the size corresponding to the stitch.

  FIG. 7 shows the generation of molding lines 71 and 72 from the pattern data 70 for knit. Here, two molding lines 71 and 72 are displayed as candidates. The designer selects and edits a preferred one from the displayed molding line.

  The display 80 on the left side of FIG. 8 is a display in which the grid representing the stitch is omitted, and the grid representing the stitch is added to the display 82 on the right side. Reference numeral 84 denotes pattern data for knit, which is linear data. The pattern data 84 is generally linear data, but the increase or decrease cannot be executed by the flat knitting machine. The pattern data can have any slope, but the slope that can be used in the molding line is limited. For this reason, the molding line 86 is slightly different from the pattern data 84. Then, the molding line 86 is generated in accordance with an empirical rule stored in the raster data generation unit 32 so that the reduction or reduction is performed in a regular and easy-to-knit manner, and the knitting is efficient and has a beautiful silhouette. The designer can edit the molding line 86 from the displays 80 and 82 in FIG.

  FIG. 9 shows a design example. An example in which a knit engineer manually generates a molding line for the same knit pattern data is automatically generated by the raster data generation unit 32 on the left side. An example is shown on the right. In the embodiment, a molding line that is smoother and less jagged is obtained.

  It would be convenient if a knitted fabric with high market reputation can be used as a reference for future designs. For a knitted fabric that is highly evaluated in the market, the knitting data is converted back to raster data, and the raster data is converted back to pattern data for knit. In FIG. 10, reference numeral 100 denotes original knit pattern data, and reference numeral 102 denotes knit pattern data obtained by reverse conversion from raster data. Then, it is understood that it is preferable to design from the beginning like the pattern data 102 instead of the pattern data 100. In addition, it is understood that it is preferable to convert the data into the raster data after converting it once as in the pattern data 102 during the conversion from the knit pattern data to the raster data. Therefore, such a rule is stored in the macro storage unit 30 or the raster data generation unit 32.

In the embodiment, the following effects can be obtained.
(1) A part can be designed as pattern data for a fabric without taking into account attributes such as knit-specific expansion and contraction and deformation for each part. Once the part design is obtained, raster data can be generated via the knit pattern data.
(2) In the conversion to raster data, the molding line can be edited with the pattern data for knit superimposed.
(3) It is possible to accumulate examples of what is preferable as pattern data for knits for designs that have been highly evaluated in the market.

2 Knit design device 4 Bus 6 CPU
8,10 Memory 12,16 Interface 14 External storage 18 Color monitor 20 Mouse 22 Keyboard 24 Color printer 26 Pattern data creation unit for fabric 28 Pattern data creation unit for knit 30 Macro storage unit 32 Raster data generation unit 34 Composition unit 35 Editing unit 36 Knitting data creation unit 38 Reverse conversion unit 40 Pattern data for fabric 41 Front body 42 Rear body 43 Sleeve 50, 60 Pattern data 51 Front body 52 Rear body 53 Sleeve 70 Pattern data 71, 72 for knit Molding line 80, 82 Display 84, 100, 102 Pattern data for knitting 86 Molding line

Claims (6)

In a knit design device that converts knitted pattern data into stitch unit data,
First pattern data generating means for receiving an input of a finished size of each part of the knitted fabric and generating first pattern data of each part representing the size input as vector data;
Second pattern data generating means for converting the first pattern data of each part into second pattern data representing a size proportional to the number of stitches as vector data;
Raster data generation means for generating raster data representing each part in stitch units by converting the second pattern data of each part into the number of stitches and generating a molding line at the side edge of the part; and A knit design device, characterized in that   The knit design apparatus according to claim 1, further comprising conversion means for converting the raster data into knitting data of a knitted fabric.   An editing means is provided for changing the molding line by accepting editing of the raster data in a state where the raster data and the second pattern data are displayed superimposed on a monitor. The knit design apparatus according to claim 1.   The knit design apparatus according to any one of claims 1 to 3, further comprising inverse conversion means for inversely converting the raster data into the second pattern data. In a method of converting knitted pattern data into stitch unit data using a knit design device,
Steps for receiving the input of the finished size of each part of the knitted fabric by the knit design device and generating first pattern data of each part representing the size input as vector data;
A step for converting the first pattern data of each part into second pattern data representing a size proportional to the number of stitches as vector data by the knit design device;
The knit design apparatus converts the second pattern data of each part into the number of stitches and generates raster data representing each part in stitch units by generating a molding line at the side edge of the part. A knit design method, characterized by comprising steps. In a program for converting knitted pattern data into stitch unit data using a knit design device,
In knit design equipment,
A step for accepting an input of a finished size of each part of the knitted fabric and generating first pattern data of each part representing the size inputted as vector data;
Converting the first pattern data of each part into second pattern data representing a size proportional to the number of stitches as vector data;
The second pattern data of each part is converted into the number of stitches, and a molding line is generated at the side end portion of the part, thereby executing a step for generating raster data representing each part in stitch units. A knit design program.