JPH10232942A - Plotting device and plotting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently plot a pattern for which basic shapes are arrayed with equal intervals by moving one of the two basic shapes, deciding a pitch between the basic shapes from the moving distance, arraying the basic shapes and preparing the pattern. SOLUTION: When a system is activated, the reference axis of the basic shape to be prepared is prepared and the basic shape is prepared for it. For the basic shapes, point sequence coordinate data are transformed to a coordinate system to the reference axis and they are displayed along with the reference axis respectively in two boxes inside a display (step 101). Then, the pitch of the basic shapes to be prepared is set to a default value (step 102) and a user drags one box by a mouse or the like and moves it along with the basic shape. Thereafter, the pitch between the basic shapes inside the display is decided (step 103). Then, the pattern for which the plural basic shapes are regularly arrayed on a determined line based on the decided pitch is prepared (step 104) and it is displayed on the display (step 105).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drawing method and a drawing apparatus for performing drawing by a computer.
The present invention relates to a technique of drawing a pattern by arranging a plurality of the same basic shapes regularly.

[0002]

2. Description of the Related Art A wide variety of computer graphics application software for drawing or drawing on a display by a computer is currently on the market. These application softwares include 1
A copying function for copying two shapes is naturally provided.

When one pattern is drawn by arranging a plurality of the same basic shapes, the entire pattern is drawn as it is,
Alternatively, the above-described copying function is used. When using the copying function, specifically, when drawing the pattern 1 composed of a plurality of basic shapes shown in FIG. 1, the basic shape 2 is drawn first, and the basic shapes are copied one after another and By writing in the position, a pattern 1 in which a plurality of the same basic shapes are arranged is drawn.

[0004]

When one pattern is drawn by arranging a plurality of the same basic shapes, if the entire pattern is drawn as it is, it takes a very long time and the drawing efficiency is reduced. There is. On the other hand, when the copying function is used, the drawing time is reduced and the efficiency is improved as compared with the case where the entire pattern is drawn.

However, when the same basic shape is arranged at equal intervals to form one pattern, it is difficult to arrange them at equal intervals even if the copying function is used. Similarly, when the same basic shapes are regularly arranged to form one pattern, it is difficult to arrange them regularly even if the copying function is used. It is also conceivable to copy a required number of basic shapes and move them to draw a pattern in which the same basic shapes are arranged at regular intervals or regularly. The method also requires a considerable amount of time, and the drawing accuracy is not good.

Therefore, the present invention has been made in view of the above situation, and has as its technical object to efficiently draw a pattern in which the same basic shapes are arranged at regular intervals or regularly. is there.

[0007]

According to the first aspect of the present invention, there is provided a basic shape display means for displaying at least two basic shapes consisting of one or more lines, Basic shape moving means for relatively moving one of the at least two basic shapes displayed on the basic shape display means with respect to the other, and a moving distance based on the relative movement of the basic shape by the basic shape moving means Pitch determining means for determining a pitch between the at least two basic shapes, and pattern generating means for regularly arranging a plurality of basic shapes on a determined line based on the determined pitch to form a pattern. And a pattern display means for displaying a pattern consisting of a plurality of basic shapes created by the pattern creation means.

According to the invention, at least two of the basic shapes displayed by the basic shape display means are moved relative to the other by the basic shape moving means. Then, the pitch between the basic shapes is determined by the pitch determining means from the movement distance based on the relative movement. Based on the determined pitch, create a pattern in which a plurality of basic shapes are regularly arranged on a determined line,
This is displayed. Therefore, when drawing a pattern in which the same basic shape is regularly arranged at equal intervals,
By setting the basic shape and pitch, it is possible to draw efficiently. Further, since at least two basic shapes are displayed on the basic shape display means, the user can actually visually confirm the pitch interval when setting these pitches, so that workability is improved, It is possible to draw a preferable shape more efficiently.

In order to solve the above technical problem, as in the invention taken in claim 2, the drawing apparatus may include a basic shape deforming means for deforming a basic shape displayed by the basic shape displaying means. preferable.

According to this, the basic shape displayed by the basic shape display means can be deformed by the basic shape deforming means. Therefore, when it is desired to modify the basic shape or to enlarge or reduce the basic shape, the basic shape can be easily deformed by the basic shape deforming means, and a preferable shape can be drawn more efficiently.

More preferably, the basic shape display means includes a box displayed in conjunction with the basic shape.

According to this, since the basic shape is displayed in conjunction with the box, the basic shape moving means moves the basic shape and sets the relative positional relationship between the two basic shapes. The relative positional relationship can be set by a simple operation of merely moving the whole, and the workability in drawing is further improved.

Still more preferably, as in the invention according to claim 4, the drawing apparatus includes a box enlarging / reducing means for changing the size of the box, and a box enlarging / reducing means for changing the size of the box changed by the box enlarging / reducing means. Box to change the size of the basic shape stored in the box
And a basic shape interlocking means.

According to this, in the drawing apparatus, the size of the box can be changed by the box enlarging / reducing means, and based on the changed size of the box, the size of the basic shape stored in the box is also linked. Therefore, when the basic shape is scaled, only the box needs to be scaled. Therefore, workability is improved when drawing.

Still more preferably, as in the fifth aspect of the present invention, the drawing apparatus includes a pattern reference line creating unit for creating a reference line of a pattern to be drawn, and the pattern creating unit determines the reference line. The pattern is created by regularly arranging a plurality of basic shapes along the reference line of the pattern created by the pattern reference line creating means based on the pitch.

According to this, the drawing apparatus creates a pattern by arranging the basic shapes along the pattern reference line created by the pattern reference line creating means. For this reason, patterns of the same shape can be regularly arranged at regular intervals, and various arrangement patterns can be drawn by arbitrarily setting the pattern reference line.

Still more preferably, as in the invention of claim 6, the reference line of the pattern is approximated by a three-dimensional free curve. According to this, the reference line of the pattern is approximated by a three-dimensional free curve. This is useful when drawing a pattern or the like in a three-dimensional three-dimensional shape as represented by an excavated cultural property or the like. That is,
When a pattern is drawn in a three-dimensional shape, if the pattern is captured two-dimensionally, the pattern shape is deformed as approaching both ends. In this case, if the reference line of the pattern is also formed as a three-dimensional free curve so as to follow the three-dimensional shape, the basic shape created along the reference line is also created along the three-dimensional shape. Therefore, a pattern drawn in a three-dimensional shape can be accurately drawn.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

First, the basic configuration of the drawing apparatus according to the present embodiment will be described with reference to FIG.

In FIG. 2, a drawing device includes a display device 3 for displaying a drawn image, an input device 4 for inputting predetermined information, calculating input information, executing a predetermined program, and executing a predetermined instruction. , A data storage device 6 for storing predetermined data and the like, a RAM 7 for storing a program for producing a drawing, and predetermined data and the like. Here, the display device 3 is actually a display such as a CRT or a liquid crystal, and the input device 4 is a keyboard, a mouse, or the like. Further, the data storage device 6 and the RAM 7 may be built in the computer, or may be external media such as a floppy disk and a hard disk. The display device 3 such as a CRT and a liquid crystal corresponds to the basic shape display means and the pattern display means in the present invention. The input device 4 such as a keyboard and a mouse corresponds to the basic shape moving means in the present invention.

The RAM 7 stores a predetermined control program for drawing, basic shape point sequence coordinate data, basic shape position point sequence coordinate data, box point sequence coordinate data, pitch coordinate data, etc., which will be described later. The control programs stored in the RAM 7 include programs corresponding to pitch determining means, pattern creating means, basic shape deforming means, box-basic shape interlocking means, and pattern reference line creating means of the present invention.

Next, a drawing creation method in this embodiment will be described.

FIG. 3 is a main flowchart of a program processed in the drawing apparatus in this embodiment. First,
This main flowchart will be described briefly. In FIG. 3, first, when the system is started, step 1 is executed.
At 01, a basic shape creation processing routine is entered. When the basic shape creation processing routine ends, in step 102, the pitch of the basic shape described later is set to a default value. Thereafter, in step 103, a basic shape change processing routine is executed. When the basic shape change processing routine ends, the pattern reference line creation processing routine is executed in step 104, and when the pattern reference line creation processing routine is ended, the pattern creation processing is executed in step 105.

Hereinafter, each subroutine will be described.

FIG. 4 shows a flowchart of a basic shape creation processing routine. In FIG. 4, in the basic shape creating process, in step 111, a reference axis of the basic shape to be created is created. The reference axis is created by the user giving two points (a start point and an end point) using a mouse or other input means in one window displayed on a display such as a CRT or a liquid crystal display. Subsequently, in step 112, the starting point coordinates and the direction vector of the reference axis are determined based on the coordinates of the two points, and stored in the RAM 7.
Next, in step 113, a basic shape is created for the created reference axis. The creation of the basic shape is such that the user draws in a window by connecting a straight line, a free curve and the like with an input means such as a mouse. When the creation of the basic shape is completed, in step 114, the point sequence coordinate data of the created basic shape is expressed in the coordinate system with respect to the reference axis (the starting point coordinates are set as the origin, and the reference axis is set as one axis of the orthogonal coordinate system). Is determined as the basic shape point sequence data, and the basic shape point sequence data is stored in the RAM 7. Next, at step 115, the basic shape is displayed in the window based on the basic shape point sequence data stored in the RAM 5. At this time, as shown in FIG. 8, two boxes 10 and 11 are displayed in a window 9 displayed on the display of the display device 3, and the created basic shape 1 is displayed.
Numeral 2 is displayed in the two boxes 10 and 11 together with the reference axis. With the above processing, the basic shape creation processing ends.

When the two boxes and the basic shape are displayed on the display in the basic shape creation processing routine (step 101) described above, the pitch of the basic shape to be created is then determined in step 102 in FIG. Set to default value. Then, the set pitch value is stored in the RAM 7 as pitch coordinate data. In this example, the default value of the pitch is set to the height of the basic shape created in the box 10. next,
In step 103, the process proceeds to a basic shape change processing routine. As will be described later, there are two types of basic shape change processing, a movement processing routine and an enlargement / reduction processing routine, and which routine is determined based on input information from the user.

FIG. 5 shows a flowchart of a basic shape change processing routine. When the two boxes and the basic shape are displayed on the display in step 121 of FIG. 5, the process waits for input by the input device in step 122. Then, in step 123, it is determined whether or not an input has been made by the input device. This is when the user clicks on or inside the sides of the boxes 10 and 10 in the window 9 shown in FIG. 14 by an input means such as a mouse, and when the user clicks the end button 12 displayed on the display by the input means. Only when this is done, it is determined that an input has been made. Even if the user clicks anywhere else, it is not determined that an input has been made, and the input wait state is continued.

If it is determined in step 123 that an input has been made, the process proceeds to step 124. Step 124
Then, it is determined what the input state is. If the input state is that the user is clicking inside either of the two boxes, the process proceeds to step 125.
In step 125, a box and basic shape movement processing routine is executed. If it is determined in step 124 that the input state is that one of the two boxes is clicked, the process proceeds to step 126. In step 126, an enlargement / reduction processing routine for changing the size of the box and the basic shape is executed. When the movement processing routine and the enlargement / reduction processing routine are completed, the process returns to step 122 in which the input device waits for input.

FIG. 8 shows a flowchart of the movement processing routine executed when the inside of the box is clicked in step 124 of FIG. In the movement processing routine, the user drags one of the two boxes shown in FIG. 14 using an input device such as a mouse. Then, the box on the dragged side moves up, down, left, and right along with the basic shape drawn inside. The user moves the box and the basic shape to a desired position and releases the drag. Then, the box and the basic shape on the dragged side end moving at that position. By the above operation, one box and the basic shape have moved relatively to the other box and the basic shape. After these operations are performed, the pitch determination processing shown in step 161 is executed in the movement processing routine, and thereafter, the offset determination processing shown in step 162 is executed.

FIG. 9 shows a flowchart of the pitch determination processing routine. The pitch determination process is a process for determining a pitch between two basic shapes displayed in the window. In this case, first, of the movement amounts of the box moved by the user's operation, the movement amount (parallel movement amount) in the same direction as the direction of the direction vector of the basic shape is calculated (step 171). Next, in step 172, the pitch between the basic shapes is updated by adding this parallel movement amount to the pitch amount between the basic shapes set to the default value. Then, in step 173, two boxes and a basic shape are displayed on the window based on the updated pitch amount.

Next, an offset determination processing routine will be described with reference to FIG. This offset determination process is a process for determining the amount of offset (deviation) of the basic shape from the reference axis. In the offset determination processing routine, the movement amount (vertical movement amount) in the direction perpendicular to the direction of the direction vector of the basic shape is calculated from the movement amount of the box moved by the user's operation (step 1).
81). The vertical movement amount indicates the amount of offset (deviation) from the reference axis of the box and the basic shape. Next, the vertical movement amount calculated in step 181 is added to the basic shape point sequence coordinate data and the box point sequence coordinate data stored in the RAM 5, and the result is added to the basic shape point sequence coordinate data in step 182. And is updated as box point sequence coordinate data. In step 183, two boxes and a basic shape are displayed on the window based on the updated basic shape point sequence coordinate data and box point sequence coordinate data. This offset determination processing corresponds to the basic shape deformation means of the present invention.

FIG. 11 shows a flowchart of a scaling processing routine executed when the side of the box is clicked in step 124 of FIG. In the enlargement / reduction processing routine, the user drags one side of one of the two boxes using an input unit such as a mouse. Then, the side of the dragged box moves. The user moves the side of the box to a desired position and releases the drag. Then, the side of the dragged box ends moving at that position. After these operations are performed, in the enlargement / reduction processing routine, first, box enlargement / reduction processing shown in step 191 is performed.
An interlocking process shown in step 192 is performed.

FIG. 12 shows a flowchart of a box enlargement / reduction processing routine. This box enlargement / reduction processing is processing for enlarging or reducing the size of the box itself.
In the box enlargement / reduction processing routine, first, step 2
At 01, the movement distance of the side of the box moved by the input operation from the user is calculated. Next, step 202
Then, the calculated moving distance is added to the point sequence coordinate data corresponding to the moved side of the box point sequence coordinate data stored in the RAM 5 to update the box point sequence coordinate data. Then, in step 203, a box is displayed based on the updated box point sequence coordinate data. By the above processing, the box is enlarged or reduced.

Next, an interlocking processing routine will be described with reference to FIG. This interlocking process is a process for enlarging or reducing the basic shape in the box in conjunction with the scaling of the box. In the linked processing routine, first, step 2
In step 11, a box scaling ratio based on the moving distance of the side is calculated from the updated box point sequence coordinate data and the box point sequence coordinate data before update. The point sequence coordinate data of the basic shape in the box is converted based on the enlargement / reduction ratio, and the converted point sequence coordinate data of the basic shape is updated as a new basic shape point sequence coordinate data (step 212). And
In step 213, the basic shape is displayed in each box on the window based on the updated coordinate data of the point sequence of the basic shape.

The size of the box and the basic shape can be changed by the above-described box enlargement / reduction processing and interlocking processing.

FIG. 15 shows an enlarged box. FIG. 15 shows a box before the boxes 13a and 13b are enlarged, and a box after the boxes 14a and 14b are enlarged.

In each of the subroutines described above, the enlargement / reduction processing corresponds to the basic shape deformation processing in the present invention, and the interlocking processing corresponds to box-basic shape interlocking means in the present invention.

In step 124 shown in FIG. 5, if the end button displayed on the display is clicked by the input means, the basic shape change processing routine is ended. In the above-described basic shape changing process, the same process as the process performed on the box and the basic shape that is not clicked by the input means such as a mouse is performed in conjunction with the box and the basic shape that are being clicked. It is performed automatically.

Returning to the main flowchart of FIG. FIG.
In the basic shape change processing routine (step 10)
When 3) is completed, the process proceeds to step 104. Here, a pattern reference line creation processing routine (pattern reference line creation means) is executed.

FIG. 6 shows a flowchart of the pattern reference line creation processing routine. In the pattern reference line creation processing, first, in step 141, the apparatus is in a state of waiting for input by the user's input means. In this case, the user freely draws a pattern reference line 16 whose basic shape is to be repeated on the window 15 of FIG. 8 using input means such as a mouse. Then, in step 142, it is determined whether or not the input by the user has been completed. If the processing has not been completed, that is, if the user is creating a pattern reference line, the input wait state is repeated. When the processing has been completed, the process proceeds to the next step 143. In step 143, the point sequence coordinates of the drawn pattern reference line are calculated, and
Store it in AM7. Then, in step 144,
The pattern reference line is displayed on the window of the display based on the pattern reference line point sequence coordinate data stored in the RAM 7. With the above operation, the pattern reference line creation processing ends, and this routine ends.

In FIG. 3, when the pattern reference line creation processing routine is completed, the routine proceeds to step 105, where the pattern creation processing routine (pattern creation means) is executed.

FIG. 7 shows a flowchart of a pattern creation processing routine. In FIG. 7, in step 151, the length of the pattern reference line is calculated from the point sequence coordinates of the pattern reference line created by the above-described pattern reference line creation processing routine. In this example, the pattern reference line is approximated to a multidimensional polynomial from the pattern reference line point sequence coordinate data stored in the RAM 7, the approximated multidimensional polynomial is subjected to a predetermined conversion, and the length is obtained by integration. I asked. However, the multidimensional polynomial approximation need not be performed. For example, the number of pattern reference line point sequence coordinate data may be used as the length of the pattern reference line, or adjacent point sequence coordinates may be connected by straight lines to approximate a plurality of straight lines. Next, in step 152, the number and positions of the basic shapes arranged on the pattern reference line are calculated. The number of the basic shapes is obtained as a value obtained by dividing the calculated length of the pattern reference line by the pitch between the basic shapes, rounding the decimal point or less, and converting it to an integer. The position of the basic shape is obtained by equally dividing the pattern reference line by the number of the basic shapes and expressing the coordinate value at the equally divided position. These are R
Stored in AM7. Next, in step 153, the direction vector of the pattern reference line at the position of the basic shape is calculated. This direction vector is obtained from the derivative of the approximate curve at that position when the pattern reference line is created by curve approximation, and when the pattern reference line is created by connecting the point sequence coordinates with a straight line. , Obtained from the inclination between adjacent point sequence coordinates. Next, in step 154,
At step 155, the basic shapes are arranged along the pattern reference line.
In FIG. 14, a plurality of basic shapes are displayed in a window 15 on the display in FIG. At this time, the basic shapes are arranged such that the direction vector of the basic shape matches the direction vector at each position of the pattern reference line. With the above operation, the pattern creation processing ends.

By the above processing, a plurality of basic shapes arranged along a pattern reference line can be displayed on the window of the display based on the determined pitch.

(Embodiment) An example in which the above-described drawing apparatus and drawing method are applied to drawing a pattern shape of an excavated cultural property such as earthenware will be described below.

First, a basic shape of an earthenware or the like is modeled three-dimensionally. This involves capturing the outline of an earthenware with a CCD camera or the like, creating point sequence coordinate data on the outline of the captured image based on the principle of triangulation, and then rotating the earthenware to create point sequence coordinate data for the entire outline Then, by performing B-spline approximation on the point sequence coordinate data of each contour,
Next, the contour shape data viewed from a predetermined angle in the captured three-dimensional model of the earthenware is extracted, and the pattern of the earthenware when viewed from the predetermined angle is taken as a digital still camera or the like. Take in. Then, the captured pattern is attached to the contour shape of the earthenware.

The image captured as described above is displayed in one window on the display, for example, window 15 in FIG.

The process of drawing the image displayed in the window in this manner will be described below.

First, according to the flow chart shown in FIG. 4, point sequence data of a basic shape is created. In this case, as described above, the basic shape of the earthenware pattern may be written in the box by input means such as a mouse, but such a basic shape is registered in the RAM, floppy disk, or hard disk in advance. if there are,
You may call it and have it automatically drawn in the box. As a result, the two basic shapes drawn in the box are displayed in the window on the display.

Incidentally, the pattern engraved on an excavated cultural property such as an earthenware often has a shape in which only the both ends are different from the shapes of the other portions. For this reason, in this example, a basic shape at both ends (hereinafter, referred to as an adjacent shape) is also created. The method of creating the adjacent shape is created according to the above-described process of creating the basic shape. As a result, two adjacent shapes drawn in the box are displayed in the window of the display.

As described above, a total of four boxes, two boxes displaying the basic shape and two boxes displaying the adjacent shapes, are displayed in the window on the display as shown in FIG. . In FIG.
17a, 17b are boxes of basic shapes, 18a, 18b
Is a box of an adjacent shape.

Next, according to the flowchart shown in FIG. 5 described above, the basic shape drawn in the box, the pitch between adjacent shapes, the size of the box, and the offset are set. Thus, the basic shape displayed in each box,
By setting the pitch, size, and offset of adjacent shapes, various basic shapes and adjacent shapes are displayed in a box as shown in FIGS.

Next, a pattern reference line of a pattern in which a basic shape is to be arranged is created according to the flowchart shown in FIG. This is created by tracing a real image of an earthenware or the like projected in one window on the display with an input means such as a mouse. In this case, the depth of the pattern provided on the surface of the pottery or the like increases as the position of the pattern approaches the both ends of the pottery, so that the pattern appears to be smaller and the shape itself changes slightly.
Also, when a curve drawn on a curved surface is viewed two-dimensionally, the curve has a very complicated shape and cannot be easily represented by an approximate curve. In this example, the following method is used to three-dimensionally express such a three-dimensional image.

First, a NURBS curve is approximated to a free curve traced along a real image. When approximating the NURBS curve, three-dimensional point sequence coordinate data of the contour shape determined when the earthenware was modeled is used. As a result, the free curve traced along the real image on the two-dimensional plane (on the window of the display) is approximated to the three-dimensional curve. Then, according to the flowchart shown in FIG. 7, the length of the pattern reference line approximated by the NURBS curve is calculated, and from this length and the pitch between the basic shapes and the pitch between the adjacent shape and the basic shape, the basic shapes arranged on the pattern reference line are calculated. , The basic shape and the position of the adjacent shape are calculated. Further, the direction vector of the pattern reference line is calculated, and the basic shape and the adjacent shape are arranged along the pattern reference line. At this time, the basic shape and the adjacent shape are defined by the two-dimensional coordinate system. Since the pattern center line is defined in the three-dimensional coordinate system, it is necessary to match these. This is performed by the following operation. First, each basic shape on the pattern reference line,
The position of the adjacent shape is defined as the origin, and the NU at that point is further determined.
A local three-dimensional coordinate system is newly defined from a tangent vector of the RBS curve and a normal vector of the surface of the three-dimensional model of the actual pottery. Then, the basic shape already defined on the plane is subjected to coordinate conversion and displayed around the pattern reference line. As a result, the basic shape and the adjacent shape defined in the two-dimensional coordinate system are converted to the three-dimensional coordinate system. And
The basic shape and the adjacent shape represented by the three-dimensional coordinates are made two-dimensional by perspective projection transformation. Then, the two-dimensional basic shape and the adjacent shape are displayed in a window on the display. The above operation, that is, the basic shape and the adjacent shape defined in two dimensions are once made three-dimensional,
By displaying the coordinate in a coordinate system defined around the pattern reference line defined in three dimensions, the basic shape and the adjacent shape in a tilted state are two-dimensionally displayed by perspective projection transformation, and the three-dimensional display is performed. You can draw patterns.

Although the preferred embodiments of the present invention have been described above, the present invention should not be limited to the above embodiments and examples. For example, in the above-described embodiments and examples, the example in which the basic shape is displayed in the box is shown. However, even if the basic shape is not displayed in the box, the basic shape and the box are even linked. If so, the present invention is fully realized. Thus, the present invention is applicable without departing from the spirit of the present invention.

[0055]

As described above, according to the present invention, the basic shapes forming the pattern are relatively moved by the moving means, and the pitch between the basic shapes is determined from the moving distance based on the relative movement. Based on the determined pitch, a pattern in which a plurality of basic shapes are regularly arranged is created and displayed, so when drawing a pattern in which the same basic shapes are arranged at equal intervals, the basic shape is drawn. And the pitch can be set for efficient drawing.

[Brief description of the drawings]

FIG. 1 is a diagram showing a pattern in which a plurality of basic shapes are arranged.

FIG. 2 is a diagram illustrating a system configuration of a drawing apparatus according to an embodiment of the present invention.

FIG. 3 is a flowchart illustrating a main routine of a drawing process according to the embodiment of the present invention.

FIG. 4 is a flowchart showing a basic shape creation processing routine in a main routine in FIG. 3;

FIG. 5 is a flowchart showing a basic shape change processing routine in a main routine in FIG. 3;

FIG. 6 is a flowchart showing a pattern reference line creation processing routine in a main routine in FIG. 3;

FIG. 7 is a view showing a flowchart of a pattern creation processing routine in a main routine in FIG. 3;

FIG. 8 is a view showing a flowchart of a movement processing routine in FIG. 5;

9 is a diagram showing a flowchart of a pitch determination processing routine in FIG.

FIG. 10 is a diagram showing a flowchart of an offset determination processing routine in FIG. 8;

FIG. 11 is a diagram showing a flowchart of a scaling processing routine in FIG. 5;

FIG. 12 is a diagram showing a flowchart of a box enlargement / reduction processing routine in FIG. 11;

FIG. 13 is a view showing a flowchart of an interlocking processing routine in FIG. 11;

FIG. 14 is a diagram illustrating a display device according to an embodiment of the present invention.

FIG. 15 is a diagram showing an enlarged / reduced state of a box according to the embodiment of the present invention.

FIG. 16 is a diagram showing a basic shape, an adjacent shape, and a box surrounding them in the embodiment of the present invention.

FIG. 17 is a diagram in which a basic shape, an adjacent shape, and a box surrounding the basic shape and the adjacent shape in the embodiment of the present invention are modified.

FIG. 18 is a diagram in which a basic shape, an adjacent shape, and a box surrounding them are modified according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Pattern 2 ... Basic shape 3 ... Display device 4 ... Input device 5 ... Data storage device 6 ... CPU 7 ... RAM 9 ... Window 10 ... Box 11 ... basic shape 12 ... end button 15 ... window 16 ... pattern reference line

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takeshi Yamada 2-1-1 Asahi-cho, Kariya-shi, Aichi Pref. Aisin Seiki Co., Ltd.

Claims (12)

[Claims] 1. A basic shape display means for displaying at least two basic shapes composed of one or more lines, and one of the at least two basic shapes displayed on the basic shape display means is positioned relative to the other. Basic shape moving means for moving the basic shape, pitch determining means for determining a pitch between the at least two basic shapes from a moving distance based on relative movement of the basic shape by the basic shape moving means, Pattern creating means for creating a pattern by regularly arranging a plurality of basic shapes along a predetermined line based on the pattern, and pattern displaying means for displaying a pattern composed of the plurality of basic shapes created by the pattern creating means And a drawing device comprising: 2. The drawing apparatus according to claim 1, wherein the drawing apparatus includes a basic shape deformation unit configured to change a basic shape displayed by the basic shape display unit. 3. The drawing apparatus according to claim 1, wherein the basic shape display means includes a box displayed in conjunction with the basic shape. 4. The box according to claim 3, wherein the drawing device stores the size of the box based on a size of the box changed by the box scaling device. A drawing apparatus comprising: a box for changing the size of a basic shape; 5. The drawing device according to claim 1, wherein the drawing device includes a pattern reference line creation unit that creates a reference line of a pattern to be drawn, wherein the pattern creation unit sets the reference pitch to the determined pitch. A drawing apparatus, wherein a pattern is created by regularly arranging a plurality of basic shapes along a reference line of the pattern created by the pattern reference line creating means based on the pattern. 6. The drawing apparatus according to claim 5, wherein the reference line of the pattern is approximated by a three-dimensional free curve. 7. Displaying at least two basic shapes composed of one or more lines, setting a relative positional relationship between the displayed at least two basic shapes, and setting the at least two basic shapes based on the set relative positional relationship. A pitch between the basic shapes is determined, a pattern is created by regularly arranging a plurality of basic shapes on a determined line based on the determined pitch, and a pattern including the created plurality of basic shapes is displayed. Drawing method. 8. The drawing method according to claim 7, wherein the drawing method deforms a basic shape displayed by a basic shape deforming unit. 9. The drawing method according to claim 7, wherein at least two basic shapes are displayed in a box. 10. The drawing method according to claim 9, wherein the size of the box is changed by box scaling means, and the size of the basic shape stored in the box based on the changed size of the box. Is changed. 11. The drawing method according to claim 7, wherein a reference line of a pattern to be drawn is created by a pattern reference line creation unit, and a plurality of basic shapes are created by the pattern reference line creation unit. A drawing method, wherein a pattern is created by being regularly arranged along a reference line of the created pattern. 12. The drawing method according to claim 11, wherein the reference line of the pattern is approximated by a three-dimensional free curve.