JPH02165389A - Information processor - Google Patents

Abstract

PURPOSE:To improve the quality of a straight line by forming the straight line so that the cut faces of both the ends, i.e. both the ends of the straight line are arrayed on a straight line intersecting with the long axis direction at right angles even in the case of displaying or printing out a thick straight line. CONSTITUTION:The information processor has the 1st and 2nd coordinate storage memories 21A, 21B, the 1st and 2nd computing elements 22A, 22B, the 1st and 2nd registers 23A, 23B, the 1st and 2nd four-connection line generators 24A, 24B, the 3rd, 4th coordinate storing memories 25A, 25B, a counter 26, a page buffer memory 27, a eight-connection line generator 28, a pattern generator 29, and the 1st and 2nd exclusive NOR circuits 30, 31. Since the coordinates (coordinates on the starting point A side and end point B side) on both the cut ends of a reference straight line are calculated by the four-connection line plotting method having an inclination vertical to the straight line A-B, the cut faces are always vertical to the reference straight line and the cut faces on both the ends are aligned to the straight line A-B. Thus, the straight line of high quality can be printed out or displayed.

Description

[Detailed Description of the Invention] This invention is applicable to personal computers, office computers, word processors, DTP (desk top publishing), DPS (data processing systems), and other various types of 4-connected rendering. In particular, it relates to an information processing device equipped with a drawing function based on the method and the 8-connected drawing method, and in particular,
When displaying or printing a straight line in a high-resolution information processing device, the cut at the WJ end point, that is, the shape of the line perpendicular to the long axis direction of the straight line, is made perpendicular to the long axis direction of the straight line to be drawn. Even if a pattern is added in thick processing, the cut edges of the pattern are arranged on a line perpendicular to the long axis direction of the line to be drawn, so that extremely high quality display/display can be achieved even when drawing a thick straight line.
The present invention relates to a processing device that enables printing.

In the conventional 4-connection drawing method and 8-connection drawing method, the thickness of the straight line is mostly one dot, and in order to display/print this straight line thickly, it is necessary to A commonly used method is to move the X or Y coordinates of the starting point and ending point one dot at a time and connect the coordinates with a straight line.

However, like this, the X coordinates or ym of the starting point and ending point
In the method of moving 'R one dot at a time, the cuts at both end points of the straight line are inevitably horizontal or vertical lines, so as the line width becomes thicker, the irregularities in the cuts at both ends become noticeable.

This inconvenience is the same when a pattern is drawn on a straight line, and the cut end of the pattern becomes a horizontal line or a vertical line (four-connected drawing method described later).

Furthermore, when displaying/printing thick straight lines, the 8-connected drawing method is also used as a method for smoothing the shape of the drawn lines.

According to this 8-connection drawing method, smooth straight lines can be obtained, but on the other hand, there is a problem in that the quality is degraded because dots are left out between the lines.

Incidentally, in recent years, there has been remarkable technological development in the field of DTP (desk top publishing), and as a result, there is a trend toward the use of high-resolution display devices and printing devices in order to improve print quality.

In this case, it becomes necessary to increase the thickness of the lines of the displayed or printed figures to correspond to the improvement in resolution.

As a result, the shapes of the cuts at both end points of a straight line (lines perpendicular to the long axis direction of the straight line), which did not pose much of a problem when the resolution was low, are no longer negligible as the resolution improves.

Next, the conventional 4-connection drawing method and 8-connection drawing method will be explained in detail with reference to one drawing.

Figures 6 (1) and (2) are diagrams showing an example of a straight line dot arrangement state by the conventional 8-connected drawing method, where (1) is a basic line of 1iI11 dots, and (2) is a line width. The straight line is shown when is made into 4 dots. In the drawings, the 0 mark indicates the dot part, and the mark indicates the dot part.
2) is a diagram showing an example of a straight line dot arrangement state using the same conventional 4-connected drawing method, and (1) is a diagram with a basic line width of 1.
The straight line of dots (2) shows the straight line when the line width is set to 4 dots. In the drawings, the 0 mark indicates a dot portion.

Figures 8 (1) and (2) are diagrams explaining the dot relationships in the conventional 8-connection and 4-connection drawing methods, where (1) shows the case of the 8-connection drawing method and (2) shows the case of the 4-connection drawing method. show. In the drawings, the O mark indicates a reference dot, and the tsuba mark indicates a position where the next dot can enter.

First, the 8-connected drawing method will be explained, but as already mentioned, this method has the problem of missing dots.

In this 8-connection drawing method, as shown in FIG. 8(1), the eight locations around the reference dot 0 marked with 1 m marks are the possible positions for the next dot.

Simply put, the next dot position can be specified not only above, below, left, or right, but also at the upper right, lower right, upper left, or lower left.

Therefore, if you want to thicken the line width of 1 dot shown in Figure 6 (1) to a straight line of 4 dots, for example, change the position of the primary dot by 3 dots to the lower right. Specify.

With this specification, each dot of the straight line with a line width of 1 dot in Figure 6 (1) is copied in the lower right direction by 3 dots, as shown in Figure 6 (2). The line width becomes a straight line with a width of 4 dots.

However, in the straight line shown in FIG. 6(2), the quality is not good because the dots are missing at the positions marked by the dots.

In the case of the 8-connected drawing method, as shown in Fig. 8 (1).

It is possible to specify eight surrounding locations as the next dot position.

However, as in the example in Figure 6 (2), if you specify a tilted position such as the lower right, the result will be in Figure 6 (1).

For example, there are no basic dots in the upper left of the positions immediately below the basic dots, such as the third, fifth, and seventh from the left, so the next dot will not be located directly below these basic dots. This results in a state of missing dots.

Therefore, when increasing the line width using this 8-connection drawing method, the cuts at both ends, that is, the plane perpendicular to the basic line, will have 4 dots, resulting in a clean straight line, but there will be a missing dot in the middle, so it will be difficult to print. quality will deteriorate,
There is this inconvenience.

On the other hand, in the case of the 4-connected drawing method, Fig. 8 (2)
As shown in the figure, with respect to the reference dot 0, the four positions marked with squares on the top, bottom, left and right are the positions where the next dot can be placed.

Therefore, in order to copy the basic line with a line width of 1 dot shown in Figure 7 (1) to the lower right by 3 dots as in the 8-connection drawing method described above, It is also necessary to specify the position immediately below this as the basic dot and specify the point to the right of it.

In this way, by performing the line drawing process (copying process) twice, the basic line with a line width of 1 dot in Figure 7 (1) can be changed to a line width of 4 dots as shown in Figure 7 (2). Changed to a thick straight line with dots.

However, in the case of the 4-connected drawing method, in order to draw only 3 dots to the bottom right, 2 dots are drawn for 1 dot.
Since the drawing process is required to be performed twice, the drawing process becomes complicated and the processing time also increases.

Moreover, even though the line width has been reduced to 4 dots, the cuts at both ends are 3 dots, so as the resolution increases, a straight line that is difficult to see will be obtained.

In this way, in the conventional 8-connection drawing method and 4-connection drawing method,
There is an advantage that the cuts at both ends of the straight line are aligned, but there are cases where dots are missing in the middle, and conversely, even if there are no missing dots in the middle, the cuts at both ends of the straight line are uneven. However, each method has its advantages and disadvantages, and it was not possible to obtain high-quality thick straight lines.

Here, the configuration of a personal computer will be described as an example of an information processing system equipped with a drawing function using the conventional 4-connection drawing method and the 8-connection drawing method.

FIG. 9 is a functional block diagram showing an example of a conventional information processing system equipped with a drawing function using the 4-connection drawing method and the 8-connection drawing method. In the drawings, 1 is an input device such as a keyboard, 2 is a pointing device (position input device), 3 is an image scanner, and 4 is a CR
T display unit, 5 is printer, 6 is FDD
(floppy disk driver) unit, 7 is H
DD (hard disk driver) unit, 8 is the system main unit, 9 is its CPU, 1o is ROM, 11
is RAM, 12 is keyboard controller, 13 is pointing device controller, 14 is scanner controller, 15 is CRT controller, 16 is printer controller, 17 is FDD controller, 18 is H
A DD controller, 19 a communication control unit, and 20 a system bus.

The functions of each part of the information processing system shown in FIG. 9, for example, a personal computer, are outlined as follows.

The input device 1 includes a keyboard and the like, and is an input means for inputting system startup and other commands, necessary character information, and the like. Information input from this input device 1 is sent to the computer side via the keyboard controller 12 and system bus 20.

The pointing device 2 is an input means (position input device) for a pointer cursor that indicates a position on the display screen, and the input information is also sent to the computer side via the pointing device/controller 13 and the system bus 20. Ru.

The image scanner 3 is a single image input means, and the read image information is similarly sent to the computer side via the scanner controller 14.

The CRT display unit 4 is a display means for visually displaying character/numeric information and image information of documents being created or already created, as well as guidance necessary for operation, etc., in the form of a dot pattern on its screen.

A CRT controller 15 is connected to the CRT display unit 4, and controls the display of data and guidance developed in a dot pattern on the screen of the CRT.

The printer 5 is a dot image printing device such as a thermal transfer type printing device having a current-heating head, a so-called thermal dot printer, an inkjet printer, a plunger magnet type printer, etc., and prints a document based on the created data. or images, etc., in a dot pattern.

This printer 5 is given data such as created characters and numbers, image information, format information, and other control information from the computer side via the system bus 20 and printer controller 16, and creates a hard copy.

The floppy disk of the FDD unit 6 and the hard disk of the HDD unit 7 are external storage devices,
The read information is sent to the computer side via the FDD controller 17, HDD controller 18, and system bus 20.

Note that as the external storage device, a magnetic disk, magnetic tape, or other large-capacity storage device can also be used.

A CPU 9 and a ROM1 provided in the system main unit 8
0 and RAMII constitute the system control section of the personal computer.

That is, the ROM10 stores programs that control the system, character pattern data, etc.
Further, RAMII is a system memory that stores necessary data.

The CPU 9 controls the entire system shown in FIG.

For example, it receives key information from the input device 1 and outputs corresponding processing operations and control commands, and also outputs data to the CRT display 4 or printer 5 based on the key human power information, or outputs data to the image scanner. It inputs image data from 3, and also controls various controls such as accessing the floppy disk of the FDD unit 6 and the hard disk of the HDD unit 7, and exchanging data via the communication control section 19.

The communication control unit 19 controls information exchanged with other communication terminal devices.

An information processing system such as a personal computer has a configuration as shown in FIG.

In an information processing system with such a configuration, as explained in detail in connection with FIGS. 6 to 8, there is a function that can draw straight lines and thicken them, that is, 4-connected drawing. It has drawing functions using the method and 8-connected drawing method.

In this way, conventional information processing devices have the ability to execute the 8-connection drawing method and the 4-connection drawing method for drawing straight lines and thickening straight lines, but with either of the thickening processing methods,
There are advantages and disadvantages, due to missing dots and irregularities on both ends,
In high-resolution display/printing devices, there has been a problem in that the quality of straight lines with large line widths is degraded.

Therefore, the information processing device of the present invention solves these inconveniences in conventional high-resolution display/printing devices, and
Even when displaying or printing thick straight lines, high-quality straight lines can be obtained by arranging the cuts at both ends of the straight line, that is, the ends of this straight line, on a straight line perpendicular to the long axis direction. An object of the present invention is to provide an information processing device that does the following.

In addition, in order to make the cuts at both ends of this straight line orthogonal to the long axis direction, the cut straight lines are drawn using the 4-connection drawing method, thereby eliminating dots (moiré) within the thick straight line.
The purpose of this study is to propose an information processing device that prevents this.

- The present invention includes a display device that displays dot information, a printing device that prints dot information, and a coordinate position input device such as a pointing device that indicates coordinates on the screen of the display device. In an information processing system having a drawing function using a 4-connection drawing method and an 8-connection drawing method, a starting point of a basic straight line that stores coordinate position information of a starting point and an end point of the basic straight line input from the coordinate position input device. and an end point storage means, with respect to two straight lines that are perpendicular to the basic straight line drawn between the two points based on the coordinate positions of the starting point and the ending point of the basic straight line, and that pass through each of the starting point and the ending point. Thickness specifying means for specifying the common thickness of two straight lines by the number of dots; Correspondingly, a starting point side and end point side calculation means that calculates and generates the required number of times using the 4-connection drawing method, coordinates based on coordinate position information of the starting point and ending point of the basic straight line, and further the calculated starting point side and ending point 8-connected drawing means for drawing between the coordinates according to side information by the 8-connected drawing method, and the 8-connected drawing means draws between the coordinates of the starting point and the end point of the basic straight line by the 8-connected drawing method, The start point side and end point side calculation means calculate the coordinates on the start point side and the end point side a number of times corresponding to the specified thickness using the 4-connected drawing method, and perform the above-mentioned 8 connected drawing between the calculated coordinates on the start point side and the end point side. By sequentially drawing and forming a straight line with a specified thickness,
It is configured such that both end points of a basic straight line of a specified thickness are arranged on a straight line orthogonal to the basic straight line.

In addition, the calculation means is provided for calculating and generating each coordinate on the starting point side and the ending point side of a straight line perpendicular to the basic straight line to be drawn by a four-connected drawing method, and the calculating means uses each coordinate on the starting point side and the ending point side. By calculating and generating coordinates,
It is configured to prevent missing dots when drawing the basic straight line using the 8-connection drawing method.

Furthermore, a calculation means for calculating and generating each coordinate of the starting point side and the ending point side of a straight line perpendicular to the basic straight line to be drawn by a four-connected drawing method, and the starting point side and the ending point calculated and generated by the calculation means. and a mask processing means for masking each coordinate on the side using an arbitrary pattern when drawing by the 8-connected drawing method, and by performing mask processing by the mask processing means, the cut ends of the pattern on the starting point side and the ending point side are It is configured to be formed by a straight line orthogonal to the basic straight line.

Next, embodiments of the information processing apparatus of the present invention will be described in detail with reference to the drawings.

First, the principle of thickening straight lines by the information processing apparatus of the present invention will be described.

FIG. 2 is a diagram showing the relationship between the coordinates of a basic straight line and the thicker direction. In the drawings, A indicates the starting point of the straight line, B indicates the ending point, ma indicates the upward direction of the thickening process, and moth indicates the downward direction.

In an operation of drawing a straight line in an information processing apparatus, the coordinate positions of a starting point A and an ending point B of the straight line are specified using a coordinate position reading device such as a pointing device.

Further, in the thickening process, information on the line width to be enlarged is inputted from an input device such as a keyboard.

FIG. 3 is a diagram showing an example of a basic straight line dot arrangement based on the 8-connected drawing method. In the drawings, a hatched O mark indicates a dot.

In the 8-connected drawing method, as shown in Figure 2 above, the starting point A of the straight line
, When the coordinate position of the end point B is specified, based on the coordinate information of the start point A and the end point B, and the state of their inclination, dots are sequentially arranged in the relationship shown in Fig. 3 to form a straight line. Draw AB.

In the case of this 8-connected drawing method, the previous figure 8 (1)
As explained in connection with , the position of the next dot can be given in eight directions around the basic dot, so depending on the state of inclination, the position of the next dot can be set to the upper right, right side, upper right side, upper right side, etc. of the starting point A.
Arrange the dots in the order shown and draw a straight line as shown in Figure 3. It should be noted that this 8-connected drawing method itself is well known as described above.

FIG. 4 is a diagram showing an example of a basic straight line dot arrangement based on the four-connected drawing method. Reference numerals in the drawings are the same as in FIG. 3.

In addition, in the 4-connected drawing method, as shown in Figure 2 above, when the coordinate positions of the starting point A and ending point B of a straight line are specified, based on the coordinate information of the starting point A and ending point B, and the state of the slope Then, a straight line AB is drawn by sequentially arranging dots in the relationship shown in FIG.

In other words, in the case of this 4-connected drawing method, the position of the next dot can be given only in the four directions of up, down, left, and right, as already explained in relation to FIG. 8 (2). .

Therefore, depending on the state of the inclination, the dots are arranged in the order of right side, directly above, right side, right side, right above, right side, right side, etc. of the starting point A, as shown in Fig. 4. Draw a straight line like this.

Note that, as already mentioned, this four-connected drawing method itself is well known.

As mentioned above, the information processing device of the present invention utilizes the well-known 4-connection drawing method to calculate and generate the coordinates of the cut corners (directions perpendicular to the long axis direction of the straight line) at both ends of a basic straight line. , the well-known 8-connection drawing method is also used for the drawing process between the calculated coordinates.

Next, the specific configuration of the information processing apparatus of the present invention will be explained.

FIG. 1 is a functional block diagram showing a detailed embodiment of the main configuration of an information processing apparatus according to the present invention. In the drawing, 21A is a first coordinate storage memory, 21B is a second coordinate storage memory, 22A is a first arithmetic unit, and 22B
is the second arithmetic unit, 23A is the first register, 23B is the second register, 24A is the first 4-connection line generator, 24B
is a second 4-connection line generator, 25A is a third coordinate storage memory, 25B is a fourth coordinate storage memory, 26 is a counter,
27 is a page buffer memory, 28 is an 8-connection line generator,
29 is a pattern generator, 30 is a first EX-NOR (exclusive NOR) circuit 1.31 is a second EX-N
An OR circuit is shown.

In the block diagram shown in FIG. 1, 21A to 25A mainly perform processing related to the starting point A and processing related to the slope of the straight line AB, and 21B to 25B mainly perform processing related to the ending point B and the slope perpendicular to the straight line 11iAB. Perform processing. In summary, these blocks only perform arithmetic processing of coordinates on the starting point side and the ending point side using the four-connected drawing method.

The actual straight line drawing is performed by an 8-connected line generator 28.

The counter 26 outputs "0" when the count value is rQJ, and outputs "1" when the count value is "1" or more.

When drawing the first g (basic line), the count value is "0", and in this case, the first EX-N
The information on the coordinate A stored in the first coordinate storage memory 21A is sent via the OR circuit 30 to the first 4-connection line generator 24A via the second EX-NOR circuit 31 to the second
Information on the coordinate B stored in the coordinate storage memory 21B is input to the second four-connected line generator 24B.

After that, when the count value becomes [1] or more, the information of the coordinate A' stored in the third coordinate storage memory 25A is transferred to the first four-connection line generator 24A, The information on the coordinate B' stored in the memory 25B is input to the second four-connection line generator 24B.

That is, the 4-connected line generators 24A and 24B draw the next coordinates A', 2, and 3' based on these coordinates A and B until the 8-connected line generator 28 draws one basic line of starting point A and ending point B.
B' is calculated and generated, and after drawing one basic line by the 8-connected line generator 28, the next drawing process is performed based on the calculated next coordinates A' and B'. The calculation and generation of new coordinates A' and B' for this purpose are continued sequentially.

When the count value of the counter 26 reaches the thickness of the line, the output causes the operation of the 8-connected line generator 28 to be stopped.

The page buffer memory 27 stores straight line pattern data to be output to a display device or a printing device. Further, the pattern generator 29 generates a pattern necessary for mask processing by the 8-connected line generator 28.

FIG. 5 is a flowchart showing the flow of main processing when thickening a straight line in the information processing apparatus of the present invention. In the drawings, #1 to #9 indicate steps.

As shown in FIG. 5, in step #1, the coordinate information of the starting point A read by a coordinate input device such as a pointing device is stored in the first coordinate storage memory 21A shown in FIG. The coordinate information of B is respectively stored in the second coordinate storage memory 21B.

In step #2, the first arithmetic unit 22A calculates the starting point A and the ending point B stored in the coordinate storage memories 21A and 21B.
The slope (dy/dx) of the straight line AB is calculated based on the coordinate values of , and the calculation result is stored in the first register 23A.

In step #3, the second arithmetic unit 22B calculates the slope (-dy/dx) for orthogonal to the straight line τi, and stores the calculation result in the second register 23B.

In step #4, the slope value (-dy/dx) stored in the second register 23B and the first coordinate storage memory 2
Based on the coordinate values of the starting point A stored in 1A, the first
The next coordinate value A' in the Zeng direction is calculated by the four-connection line generator 24A, and the calculation result is stored in the third coordinate storage memory 25A.

Also, the slope value (
-dy/dx) and the coordinate value of the end point B stored in the second coordinate storage memory 21B, the second four-connected line generator 24B similarly generates the next coordinate value B' in one direction. is calculated, and the calculation result is stored in the fourth coordinate storage memory 25B.

In step #5, the slope value (dy/dx) stored in the first register 23A, the third coordinate storage memory 25A
and the next coordinate value B' stored in the fourth coordinate storage memory 25B.
Based on the information, the 8-connected line generator 28 draws the data in the page buffer memory 27 while performing mask processing using pattern data generated from the pattern generator 29.

Through the above processing, one straight line is drawn.

In step #6, half the thickness (thickness in the direction of
Determine whether drawing has been completed up to half of the total thickness.

If drawing to half the thickness has not yet been completed, return to step #4 and repeat the same process.

On the other hand, if it is determined in step #6 that drawing up to half the thickness has been completed, the process proceeds to the next step #7.

In step #7, arithmetic processing for one hundred directions is performed. This process is basically the same as the previous step #4.

In step #8, for one hundred directions, eight connecting line generators 28
As a result, drawing is performed on the page buffer memory 27 while performing mask processing using pattern data generated from the pattern generator 29. This process also follows step #5
This is basically the same process.

In step #9, half the thickness (also the thickness in the downward direction,
Determine whether drawing has been completed up to half of the total thickness.

If drawing to half the thickness has not yet been completed, return to step #7 and repeat the same process.

If it is determined in step #9 that drawing up to half the thickness has been completed, the flow shown in FIG. 5 is completed.

In addition, in the above embodiment, 7. of the basic straight line is used. The case where thick processing is performed by adding patterns in both directions has been described.

However, it is not necessary to thicken the basic straight line in both directions; it is also possible to thicken the basic straight line by adding a pattern to only one direction (in this case, half of the thickness is finished). It is not necessary to judge whether or not the processing of the entire thickness has been completed (it is necessary to judge whether or not the processing of the entire thickness has been completed).

Furthermore, it is clear that the present invention can be implemented not only in printing devices but also in display devices, facsimile devices, and various other systems that express image data using dot patterns, and in this respect, the present invention is not limited to the case of the embodiment. Needless to say.

114-1 The information processing device of this invention calculates the coordinates of both end cuts of a basic straight line (coordinates of the starting point side and the ending point side) using the 4-connected drawing method with an inclination perpendicular to the straight line. ,
The cut is always perpendicular to the cardinal line. Similarly, the cut edges of the pattern are perpendicular to the basic straight lines.

Therefore, regardless of the thickness of the straight line, a display or print can be obtained in which the cut ends at both ends are neatly aligned on the straight line.

Moreover, since the coordinates of the cuts at both ends of a basic straight line are 4-connected lines, missing dots inside the straight line are also prevented, and even high-resolution printing and display devices can print and display sufficiently high-quality straight lines. Many excellent effects can be achieved, such as:

[Brief explanation of the drawing]

FIG. 1 is a functional block diagram showing a detailed embodiment of the main configuration of an information processing device of the present invention; FIG. 2 is a diagram showing the relationship between the coordinates of a basic straight line and the thicker direction; FIG. 3 is a diagram showing an example of a basic straight line dot arrangement based on the 8-connected drawing method. FIG. 4 is a diagram showing an example of a basic straight line dot arrangement using the 4-connected drawing method. FIG. 5 is a flowchart showing the flow of main processing when thickening a straight line in the information processing apparatus of the present invention. FIG. Figures showing an example of the state. (1) is a straight line with a basic line width of 1 dot, (2) is a diagram showing a straight line with a line width of 4 dots, and Figure 7 (1) and (2) This is a diagram showing an example of a straight line dot arrangement using the same conventional 4-connection drawing method. (1) shows the basic straight line with a line width of 1 dot, (2) shows the straight line when the line width is set to 4 dots, and Figures 8 (1) and (2) show the conventional 8-connection and 4-dot lines. These diagrams explain the relationship between dots using the connected drawing method, (1) is the 8-connected drawing method, and (2) is the 4-way
FIG. 9 is a functional block diagram showing an example of a conventional information processing system equipped with a drawing function based on the 4-connected drawing method and the 8-connected drawing method. In the drawing, 2LA is the first coordinate storage memory, 21B
is the second coordinate storage memory, 22A is the first arithmetic unit, 22
B is the second arithmetic unit, 23A is the first register, 23B is the second register, 24A is the first 4-connection line generator, 24
B is a second 4-connection line generator, 25A is a third coordinate storage memory, 25B is a fourth coordinate storage memory, 26 is a counter, 27 is a page buffer memory, and 28 is an 8-connection line generator. 29 is a pattern generator. O map O Seki monument map

Claims (1)

[Claims] 1. A display device that displays dot information, a printing device that prints dot information, and a coordinate position input device such as a pointing device that indicates coordinates on the screen of the display device. , an information processing system having a drawing function using a 4-connection drawing method and an 8-connection drawing method, a basic straight line starting point and a basic straight line storing coordinate position information of the basic straight line starting point and end point input from the coordinate position input device; an end point storage means, and two straight lines that are orthogonal to the basic straight line drawn between the two points based on the coordinate positions of the starting point and the ending point of the basic straight line, and that pass through each of the starting point and the ending point.
Thickness specifying means for specifying the thickness common to the straight lines of the book by the number of dots; and a thickness specifying means for specifying the thickness common to the straight lines of the book by the number of dots; A start point side and end point side calculation means that calculates and generates the required number of times using the 4-connected drawing method in accordance with and 8-connected drawing means for drawing between the coordinates based on the information of the 8-connected drawing method, respectively, and the 8-connected drawing means draws between the coordinates of the starting point and the end point of the basic straight line using the 8-connected drawing method. Then, the start point side and end point side calculation means calculate the number of times corresponding to the specified thickness for the coordinates of the start point side and the end point side using the 4-connected drawing method, and calculate the distance between the calculated coordinates of the start point side and the end point side. are sequentially drawn by the 8 connected drawing means to form a straight line of a specified thickness, thereby arranging both end points of the basic straight line of the specified thickness on a straight line orthogonal to the basic straight line. An information processing device characterized by: 2. In the information processing device according to claim 1, an operation for calculating and generating each coordinate on the starting point side and the ending point side of a straight line perpendicular to the basic straight line to be drawn using a four-connected drawing method. Information characterized in that the information comprises a means for calculating and generating coordinates on the starting point side and the ending point side by the calculating means to prevent missing dots when drawing the basic straight line using the 8-connected drawing method. Processing equipment. 3. In the information processing device according to claim 1, an operation for calculating and generating each coordinate on the starting point side and the ending point side of a straight line perpendicular to the basic straight line to be drawn using a four-connected drawing method. and a masking means for masking each coordinate of the starting point side and the ending point side calculated and generated by the calculating means using an arbitrary pattern when drawing by the 8-concatenation drawing method, the masking means An information processing apparatus characterized in that the cut ends of the pattern on the starting point side and the ending point side are formed by straight lines perpendicular to the basic straight line by performing mask processing by a processing means.