JP6933544B2 - Character data processing device and program - Google Patents

Description

The present invention relates to a character data processing device and a program.

Conventionally, a printer that prints a logo has been known (see, for example, Patent Document 1). For example, in logo printing, printing is executed by synthesizing image data (logo) of inclined characters on the background of characters (text data).

Japanese Unexamined Patent Publication No. 2006-35729

In logo printing, image data of a logo is created, the created image data is expanded in a memory, and printing is performed. Therefore, it takes time and effort to create image data. Further, since the image data has a larger capacity than the text data, the data transfer time becomes longer than that of the text data.

An object of the present invention is to provide a character data processing device and a program capable of creating inclined characters without creating image data.

In order to achieve the above object, the character data processing device disclosed in the specification corresponds to any one of the dots at the four corners of the area where the character data is developed, based on the set rotation angle of the character data. The writing address is used as the reference writing address, and the first means for updating the writing address to a position separated by a predetermined number of dots from the reference writing address, and each dot constituting the character data based on the set rotation angle. A second means for reading the data corresponding to the above and updating the read address each time the data corresponding to each dot is written, and writing the data corresponding to each dot read by the second means to the write address. Each time data corresponding to each dot is written, a third means for updating the write address to a dot write address arranged at a position tilted by the set rotation angle with respect to the horizontal direction, and the character data. When the writing of all the dots for one line constituting the above is completed, the reference writing address is transferred by a predetermined amount based on the set rotation angle, and the reading address of the character data is transferred to the next line. It is characterized by including means and a fifth means for converting non-printed dots surrounded by printed dots after the character data is expanded into printed dots.

According to the present invention, tilted characters can be created without creating image data.

It is a block diagram which shows the structure of the character data processing apparatus which concerns on this embodiment. It is a flowchart which shows the enlargement inclination processing of a character. It is a figure which shows the conversion state of the character which performed the enlargement inclination processing. (A) and (B) are diagrams showing the character conversion state when the thinning process is executed. It is a figure which shows the state which the enlarged inclined character is combined with the background of the text data. It is a figure which shows an example of the setting screen of various setting information. (A) and (B) are diagrams showing an example of the expansion order, expansion direction, and expansion position of the enlarged tilt characters. (A) is a figure which shows an example of a character. FIG. 8B is a diagram showing an example in which the character of FIG. 8A is rotated by +45 degrees. FIG. 8C is a diagram showing an example in which the character of FIG. 8A is rotated by −45 degrees. (A) is a figure which shows the dot of the 1st line and the 2nd line of the character of FIG. 8A. FIG. 8B is a diagram showing a state in which the dots on the first line of the characters in FIG. 8A are expanded in the + 45 degree direction. FIG. 8C is a diagram showing a state in which the dots on the second line of the character of FIG. 8A are expanded in the + 45 degree direction. FIG. (D) is a diagram showing an example of new dots generated between the dots of the first row and the second row developed in the + 45 degree direction. FIG. 8A is a diagram showing an example in which the dots on the first line of the characters in FIG. 8A are expanded in the +30 degree direction. FIG. 8B is a diagram showing an example in which the dots on the second line of the character of FIG. 8A are expanded in the +30 degree direction. (C) is a diagram showing an example of new dots generated between the dots of the first row and the second row developed in the + 30 degree direction. FIG. 8A is a diagram showing an example in which the dots on the first line of the characters in FIG. 8A are expanded in the +60 degree direction. FIG. 8B is a diagram showing an example in which the dots on the second line of the character of FIG. 8A are expanded in the +60 degree direction. (C) is a diagram showing an example of new dots generated between the dots of the first row and the second row developed in the + 60 degree direction. (A) is a figure which shows the dot of the 1st line and the 2nd line of the character of FIG. 8A. FIG. 8B is a diagram showing an example in which the dots on the first line of the characters in FIG. 8A are expanded in the −45 degree direction. FIG. 8C is a diagram showing an example in which the dots on the second line of the character of FIG. 8A are expanded in the −45 degree direction. FIG. (D) is a diagram showing an example of new dots generated between the dots of the first row and the second row developed in the −45 degree direction. It is a flowchart which shows the expansion inclination processing at the time of rotating a character by +30 degree, +45 degree or +60 degree. It is a flowchart which shows the expansion inclination processing at the time of rotating a character by −45 degrees.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of a character data processing device according to the present embodiment. In the present embodiment, the printer 1 as the character data processing device is, for example, a thermal printer, but the printer is not limited to the thermal printer, and may be an inkjet printer, a dot impact printer, or the like.

The printer 1 includes a controller 11 that controls the entire operation of the printer 1, a memory 12 that stores various data and programs, a printing unit 13 that prints characters and images on paper, and various setting information (start of developing character data). An operation unit 14 for inputting print data (position, expansion end position, rotation angle of enlarged tilt character, etc.), a display unit 15 for displaying information and print data required for various settings, and an external terminal 2 for connecting. It has an interface (IF) 16. The external terminal 2 is a personal computer, a mobile terminal, or the like. The display unit 15 and the operation unit 14 may be provided on the external terminal 2, and the printer 1 may not include the display unit 15 and the operation unit 14. The enlarged tilt character is a character that is expanded and enlarged in an oblique direction. Hereinafter, the characters that have been subjected to the tilt processing only may be collectively referred to as "enlarged tilt characters".

The controller 11 is connected to the memory 12, the printing unit 13, the operating unit 14, the display unit 15, and the IF 16 via the bus 17. The printing unit 13 includes a thermal head, a platen roller, and the like. The operation unit 14 is provided with a button, an input key, a touch panel, or the like. The display unit 15 is, for example, a liquid crystal display. The IF16 is, for example, a serial interface, a USB (Universal Serial Bus) interface, or a network interface. In the present embodiment, various setting information and print data can be input using the operation unit 14, but various setting information and print data may be input from the external terminal 2.

In the present embodiment, the characters and character data are typeface data (including characters, numbers, symbols, figures, etc.) registered in the font memory 12a of the printer 1.

FIG. 2 is a flowchart showing the enlargement / tilting process of characters. FIG. 3 is a diagram showing a character conversion state when the enlargement tilt processing is executed. 4 (A) and 4 (B) are diagrams showing the character conversion state when the thinning process is executed. FIG. 5 is a diagram showing a state in which enlarged inclined characters are combined with the background of the text data. The character enlargement / tilting process may be executed by the external terminal 2 and the processed character pattern may be transmitted to the printer 1 for printing.

First, the controller 11 determines whether or not the enlarged tilt character setting for expanding each character of the print data into the enlarged tilt character is input from the operation unit 14 or the external terminal 2 (S51). When the enlarged tilt character setting is not input (NO in S51), the controller 11 causes the printing unit 13 to print the print data without performing the enlarged tilt process (S56). When the enlarged tilt character setting is input (YES in S51), the controller 11 executes the enlarged tilt process for expanding each character to be processed into the enlarged tilt character (S52). When the enlargement tilting process is executed, for example, as shown in FIG. 3, the character "A" is obliquely tilted and converted into the enlarged character "A". The details of the expansion tilt processing will be described later.

Next, the controller 11 determines whether or not the light character setting for expanding the enlarged tilted character into the light character printed lighter than the normal printing is input from the operation unit 14 or the external terminal 2 (S53). ). When the light character setting is input (YES in S53), the controller 11 executes the thinning process of the dots constituting the character pattern in order to expand the enlarged inclined character into the light character (S54).

In the thinning process, for example, as shown in FIG. 4 (A), the dot strings constituting the enlarged tilt character "A" are thinned out, and the black dots in the columns to be thinned out are converted into white dots. Here, a thinning pattern in which dot rows are thinned out for each row is used, and black dots are converted to white for each row. Alternatively, as shown in FIG. 4 (B), the dot lines constituting the enlarged tilt character "A" are thinned out. Here, a thinning pattern in which dot lines are thinned out line by line is used, and black dots are converted to white line by line. The thinning process may be executed by using the checkered pattern or the thinning pattern having a predetermined shape. Since the number of black dots constituting the enlarged tilted character is reduced by the thinning process, the color of the enlarged tilted character becomes lighter as a whole. If the font is thinned out at the same magnification, the font structure may be corrupted and the characters may not be readable. Therefore, when expanding the diagonal font, the data is enlarged and expanded diagonally, and then the thinning process is executed (. See S52 and S54 in FIG. 2).

Next, the controller 11 synthesizes the enlarged tilt character on the background of the text data (S55). The controller 11 OR-synthesizes the text data and the enlarged tilt character for each dot, and expands the enlarged tilt character and the text data in the buffer area for expanding the print data in the memory 12. When the synthesis process of S55 is executed, for example, as shown in FIG. 5, the enlarged tilt character 200 (“HAHA”) is synthesized on the background of the text data 201 (“2017/1/1 sale information”). After that, the controller 11 causes the printing unit 13 to print the combined print data (S56), and ends this process.

FIG. 6 is a diagram showing an example of a setting screen for various setting information. 7 (A) and 7 (B) are diagrams showing an example of the expansion order, expansion direction, and expansion position of the enlarged tilt characters.

The setting screen 20 of FIG. 6 is displayed on the display unit 15 or the external terminal 2. On the setting screen 20, for example, the enlargement size 21, the inclination angle 22, the density 23, the deployment direction 24, the deployment angle 25, the deployment start position 26, and the deployment end position 27 are set. The enlarged size 21 indicates the dot size after the enlarged inclined character is enlarged, and a value such as 24 × 24 dots is input. The tilt angle 22 indicates the rotation angle of the enlarged tilt character with respect to the horizontal direction, and for example, a value such as +45 degrees or −45 degrees is input. The +/- angle indicates counterclockwise / clockwise with respect to the horizontal direction. The inclination angle 22 can be set in units of 5 degrees, for example. The density 23 indicates the density of the enlarged inclined characters by the thinning process, and for example, a value of 1 to 10 is input. When the numerical value of the density 23 becomes small, the density of the enlarged inclined character decreases, and when the numerical value of the density 23 becomes large, the density of the enlarged inclined character increases.

The expansion direction 24 indicates the expansion direction of the enlarged tilt character, and for example, directions such as "lower left → upper right", "upper left → lower right", "lower right → upper left", and "upper right → lower left" are set. 7 (A) and 7 (B) show a form when the characters "1" to "11" are expanded in the print area. When the direction of "lower left → upper right" is set as the expansion direction 24, each enlarged tilt character is expanded in the buffer so as to be printed from the lower left to the upper right of the paper as shown in FIG. 7 (A). In FIG. 7A, "1" to "11" each indicate one character of the enlarged tilt character. In this case, the enlarged tilt characters are expanded in the direction of "lower left → upper right" in order from "1". When the enlarged tilt character is expanded from "1" to "5" in order, the enlarged tilt character "6" is automatically broken and placed under "1" because it exceeds the print area (paper width). That is, when the enlarged tilt character exceeds the print area, an automatic line feed is executed and the print expansion position is updated.

Further, when the direction of "upper left → lower right" is set as the expansion direction 24, the enlarged tilt character is expanded in the buffer so as to be printed from the upper left to the lower right as shown in FIG. 7 (B). .. In FIG. 7B, the enlarged tilt characters are expanded in the direction of “upper left → lower right” in order from “1”. When the enlarged tilt character is expanded from "1" to "5" in order, the enlarged tilt character "6" is automatically broken and placed under "1" because it exceeds the paper width.

The development angle 25 indicates an angle in the development direction of the enlarged tilt character with respect to the paper width direction. When the expansion angle 25 is set to +45 degrees, the enlarged tilt character is tilted 45 degrees upward to the right and expanded in the buffer as shown in FIG. 7 (A). When the expansion angle 25 is set to -30 degrees, the enlarged tilt character is tilted 35 degrees downward to the right and expanded in the buffer as shown in FIG. 7 (B).

The expansion start position 26 indicates the expansion position of the expansion inclination character “1” in FIGS. 7 (A) and 7 (B), and the expansion end position 27 indicates the expansion of the expansion inclination character “11” in FIGS. 7 (A) and 7 (B). Indicates the position.

Hereinafter, the expansion tilt processing will be described.

FIG. 8A is a diagram showing an example of a character composed of 16 (row) × 8 (column) dots. FIG. 8B is a diagram showing an example in which the characters of FIG. 8A are rotated by +45 degrees. FIG. 8C is a diagram showing an example in which the characters of FIG. 8A are rotated by −45 degrees. 8 (B) and 8 (C) show an area of memory 12 used when rotating the characters of FIG. 8 (A). By rotating the characters by 45 degrees, the print size of the character patterns of FIGS. 8 (B) and 8 (C) is enlarged, and the enlargement ratio is about 1.41 times (√2 times). The area required to rotate a character composed of m (row) × n (column) dots by 45 degrees and develop it is (m + n-1) × (m + n-1). Therefore, the area where the character patterns of FIGS. 8 (B) and 8 (C) are developed is 23 × 23.

9 (A) is a diagram showing dots on the first and second lines of the characters of FIG. 8 (A). FIG. 9B is a diagram showing a state in which the dots on the first line of the characters in FIG. 8A are expanded in the + 45 degree direction. FIG. 9C is a diagram showing a state in which the dots on the second line of the characters in FIG. 8A are expanded in the + 45 degree direction. FIG. 9D is a diagram showing an example of new dots generated between the dots of the first row and the second row developed in the + 45 degree direction. Note that FIGS. 9 (B) to 9 (D) show a part of FIG. 8 (B), respectively.

In FIG. 9A, "0x80" to "0x01" indicate the address of each dot, that is, the address of the font memory 12a storing the character pattern. When the characters are expanded in the upward-sloping direction, the controller 11 reads the data constituting the characters (hereinafter referred to as character data) from the font memory 12a in the right direction in order from the dot of "0x80" on the first line. When the reading of the character data on the first line is completed, the character data is read from the font memory 12a in order from the dot of "0x80" on the second line in the right direction.

The reference value of the write address of the buffer that expands the character pattern (hereinafter referred to as the reference write address) is an address corresponding to any one of the dots at the four corners of the buffer that expands the character pattern, and is an address corresponding to FIG. 9 (B). ) Is the address of the upper left dot (P1). Here, the buffer for expanding the character pattern is, for example, a part of the area in the memory 12. Since the number of dots in the column direction of the read character pattern is 8, when the character pattern is rotated by +45 degrees, the controller 11 lowers the write address of the buffer by 7 dots from P1 to 8 dots as shown in FIG. 9 (B). The character data of "0x80" in the first line of FIG. 9A is written in P2 of the eye. As a result, character data is written in the lower left area of FIG. 9B. Next, the controller 11 updates the write address of the buffer to move one dot up and one dot to the right so that the next dot comes to the position of +45 degrees with respect to the dot written in P2. That is, the writing address of the next dot is updated from P2 to P3. Then, the character data of "0x40" on the first line of FIG. 9A is read from the font memory 12a and written to P3.

In this way, the controller 11 writes the character data to the buffer address that is 7 dots lower than the reference write address, and each time the character data is written by 1 dot, the write address is moved up by 1 dot and to the right by 1 dot, and the font memory. The read address of the character data from 12a is shifted to the right by 1 dot. As a result, 8 dots in the first line inclined by +45 degrees along the A direction in FIG. 9B are written in the buffer.

Next, the controller 11 shifts the reference write address from P1 to one dot down and one dot to the right, and shifts the character data read address to the second line. Then, as in the first line, each time the controller 11 writes the character data by 1 dot, the write address shifts to 1 dot up and 1 dot right, and the read address of the character data from the font memory 12a is 1 dot right. Move to. As a result, as shown in FIG. 9C, 8 dots constituting the second line are written to the buffer.

Here, by rotating or inclining the character, as shown in the area R1 of FIG. 9C, a new dot is generated between the first line and the second line of the rotated character data. Since the writing data corresponding to the new dots does not exist in the character pattern of FIG. 8A, white dots are generated in the enlarged inclined characters, and the appearance of the enlarged inclined characters deteriorates.

Therefore, the controller 11 converts the white dots surrounded by the black dots after the enlargement tilt processing into black dots. For example, since the white dots of P8 in FIG. 9 (C) are surrounded by the black dots of P2, P3, P5 and P6 on the top, bottom, left and right, the controller 11 shows the white dots of P8 as shown in FIG. 9 (D). Convert to black dots. On the other hand, the white dots of P9 in FIG. 9C are surrounded by the dots of P3, P4, P6 and P7 on the top, bottom, left and right, but since the dots of P4 and P7 are white dots, they are not converted into black dots.

The controller 11 repeats the above process until the writing of the character data of the third line to the buffer of the character data of the last line is completed.

By the above processing, as shown in FIG. 8 (B), an enlarged tilt character obtained by rotating the character "H" in FIG. 8 (A) by +45 degrees is created.

Next, an example of rotating a character by +30 degrees will be described.

FIG. 10A is a diagram showing an example in which the dots on the first line of the characters in FIG. 8A are expanded in the +30 degree direction. FIG. 10B is a diagram showing an example in which the dots on the second line of the characters in FIG. 8A are expanded in the +30 degree direction. FIG. 10C is a diagram showing an example of new dots generated between the dots of the first row and the second row developed in the + 30 degree direction.

The position and order in which the controller 11 reads the character data are as described with reference to FIG. 9A. The reference write address is the address of the dot P1 on the upper left of FIG. 10 (A).

First, the controller 11 lowers the write address by 4 dots from P1 as shown in FIG. 10 (A). The number of dots to be reduced from the reference writing address when the character is rotated at 0 degrees or more and 45 degrees or less is calculated by the following formula.
N = W- (45-V) / 5-1
Here, N indicates the number of dots to be lowered from the reference writing address. W indicates the horizontal size of the dots constituting the character. In the case of FIG. 8A, W is 8. V indicates the rotation angle. In this case, V is 30.

When the character of FIG. 8 (A) is rotated by +30 degrees, N becomes 4 (N = 8- (45-30) / 5-1 = 4). Further, when the character of FIG. 8A is rotated by +45 degrees, N becomes 7 (N = 8-0-1 = 7). If N is 0 or less, the set rotation cannot be performed.

The controller 11 writes the character data of "0x80" in the first line of FIG. 9A to P11, which is the lower left area of FIG. 10A, which is the writing address lowered by 4 dots from P1. Next, the controller 11 updates the write address of the next dot from P11 to P12 so as to shift to the right by one dot. Then, the character data of "0x40" on the first line of FIG. 9A is read from the font memory 12a and written to P12.

Next, the controller 11 updates the write address from P12 to P13 so as to move one dot up and one dot right. Then, the character data of "0x20" on the first line of FIG. 9A is read from the font memory 12a and written to P13. Next, the controller 11 updates the write address from P13 to P14 so that the write position to the buffer shifts to the right by one dot. Then, the character data of "0x10" in the first line of FIG. 9A is read and written in P14. Next, the controller 11 updates the write address to P15, which is shifted one dot up and one dot right from P14. Then, the character data of "0x08" on the first line of FIG. 9A is read from the font memory 12a and written to P15.

In this way, the controller 11 starts writing the character data by lowering the reference write address by 4 dots, and each time the character data is written to the 1-dot buffer, the write address is shifted to the right by 1 dot, and the font memory 12a is used. The read address of the character data of is moved to the right by 1 dot. Furthermore, every time the character data is written to the 2-dot buffer, the write address is moved up by 1 dot. As a result, the dots forming the first line of the character data inclined by +30 degrees along the B direction in FIG. 10A are written to the buffer.

Next, the controller 11 shifts the reference write address from P1 to one dot down and one dot to the right, and shifts the character data read address to the second line. Then, as in the first line, the controller 11 lowers the transferred reference write address by 4 dots, writes the character data of "0x08" on the second line to the buffer, and writes the character data each time it writes the character data to the 1-dot buffer. The address is moved to the right by 1 dot, and the reading address of the character data from the font memory 12a is moved to the right by 1 dot. Further, every time the character data is written by 2 dots, the writing address is moved up by 1 dot. As a result, the second line of the character data is written as shown in FIG. 10 (B).

Here, by rotating or tilting the character, a new dot is generated between the first line and the second line of the character data as shown in FIG. 10 (B). P51 to P53 are new dots generated in this way. Since there is no written data corresponding to the new dot, white dots are generated in the enlarged inclined character, and the appearance of the enlarged inclined character is deteriorated.

Therefore, the controller 11 converts the white dots surrounded by the black dots after the enlargement tilt processing into black dots. Since the white dots of P53 in FIG. 10 (B) are surrounded by the black dots of P16, P17, P26 and P27 on the top, bottom, left and right, the controller 11 displays the white dots of P53 as black dots as shown in FIG. 10 (C). Convert to. On the other hand, the white dots on P51 in FIG. 10B are not converted into black dots because the dots on P13 and P23 are white dots.

The controller 11 repeats the above process from the data on the third line of the character to the completion of writing the data on the last line.

By the above processing, an enlarged tilt character obtained by rotating the character "H" in FIG. 8 (A) by +30 degrees is created.

Next, an example of rotating a character by +60 degrees to enlarge it will be described.

FIG. 11A is a diagram showing an example in which the dots on the first line of the characters in FIG. 8A are expanded in the +60 degree direction. FIG. 11B is a diagram showing an example in which the dots on the second line of the characters in FIG. 8A are expanded in the +60 degree direction. FIG. 11C is a diagram showing an example of new dots generated between the dots of the first row and the second row developed in the + 60 degree direction.

The position and order in which the controller 11 reads the character data are as described with reference to FIG. 9A. The reference write address is the address of the dot P1 on the upper left of FIG. 11 (A).

First, the controller 11 lowers the write address by 14 dots from P1 as shown in FIG. 11 (A). When the character is rotated by more than 45 degrees and 90 degrees or less, the number of dots to be lowered from the reference writing address is calculated by the following formula.
N = W + (V-45) / 5 × 2
Here, N indicates the number of dots to be lowered from the reference writing address. W indicates the horizontal size of the dots that make up the character. In the case of the character of FIG. 8 (A), W is 8. V indicates the rotation angle. In this case, V is 60. When the character of FIG. 8 (A) is rotated by +60 degrees, N becomes 14 (N = 8 + (60-45) / 5 × 2 = 14).

The controller 11 lowers the write address by 14 dots from P1 and writes the character data of "0x80" in the first line of FIG. 9 (A) to P31 at the lower left of FIG. 11 (A). Next, the controller 11 updates from P31 to P32 so that the write address shifts 2 dots up and 1 dot to the right in order to write the next dot at a position of +60 degrees from P31. Then, the character data of "0x40" on the first line of FIG. 9A is read from the font memory 12a and written to P32.

In this way, the controller 11 lowers the reference write address by 14 dots, shifts the write address to 2 dots up and 1 dot to the right each time the character data is written by 1 dot, and reads the character data from the font memory 12a. Moves to the right by 1 dot. As a result, the first line of the character data inclined by +60 degrees along the C direction of FIG. 11A is written.

Next, the controller 11 shifts the reference write address from P1 to one dot down and one dot to the right, and shifts the read address of the character data from the font memory 12a to the second line. Then, as in the first line, the controller 11 writes the character data of "0x80" on the second line to P41, which is 14 dots lower than the reference write address after migration, and each time the character data is written by one dot, the write address is written. Is moved up by 2 dots and to the right by 1 dot, and the reading address of the character data from the font memory 12a is moved to the right by 1 dot. As a result, the second line of the character data is written as shown in FIG. 11 (B).

Here, by rotating or tilting the character, as shown in FIG. 11B, new dots P61 to P64 are generated between the first line and the second line of the character data.

The controller 11 converts the white dots surrounded by the black dots after the enlargement tilt processing into black dots. Since the two white dots P61 and P62 in FIG. 11B are surrounded by the black dots P31, P32, P41 and P42 on the top, bottom, left and right, the controller 11 sets the two white dots P61 and P62 in FIG. 11 (B). Convert to black dots as shown in C). On the other hand, the white dots of P63 and P64 in FIG. 10B are not converted into black dots because the dots of P33 and P43 are white dots.

The controller 11 repeats the above process from the character data on the third line to the completion of writing the character data on the last line.

By the above processing, an enlarged tilt character obtained by rotating the character "H" in FIG. 8 (A) by +60 degrees is created.

Next, an example of rotating a character by −45 degrees will be described.

12 (A) is a diagram showing dots on the first and second lines of the characters of FIG. 8 (A). FIG. 12B is a diagram showing an example in which the dots on the first line of the characters in FIG. 8A are expanded in the −45 degree direction. FIG. 12C is a diagram showing an example in which the dots on the second line of the characters in FIG. 8A are expanded in the −45 degree direction. FIG. 12D is a diagram showing an example of new dots generated between the dots of the first row and the second row developed in the −45 degree direction.

In FIG. 12A, "0x80" to "0x01" indicate the addresses of the dots stored in the font memory 12a. When expanding characters in the upward left direction, contrary to the above example, the controller 11 reads character data from the font memory 12a in order from the dot "0x01" located on the right side of the first line in the left direction, and buffers the characters. Write to. When the reading of the character data of "0x80" on the first line is completed, the character data of "0x01" on the second line is read in order from the dot to the left.

The write address at which the dot writing to the buffer in the normal state is started is the address of the upper left dot in FIG. 8C. When rotating the character data by -45, the data on the right side of the character is written to the buffer. Therefore, first, the controller 11 sets the address of the start of writing to the buffer to the upper right of the area of FIG. 8C, that is, the upper left. It shifts from the dot of 22 dots to the right of 22 dots. The area required to rotate a character composed of m (row) x n (column) dots by -45 degrees and expand it is (m + n-1) x (m + n-1), so the dots that move to the right. The number is (m + n-1) -1. In the case of FIG. 8C, the number of dots shifting to the right is 22 (= (16 + 8-1) -1). Therefore, the write start address shifts to the address of the dot on the upper right of FIG. 8C. The number of dots for shifting the writing address to the right is changed according to the character size.

Then, the controller 11 uses the address of the upper right dot in FIG. 8C, that is, the address of the upper right dot P70 in FIG. 12B as the reference writing address. Subsequently, as shown in FIG. 12B, the controller 11 lowers the writing address by 7 dots from P70, and writes the character data of “0x01” at the right end of the first line of FIG. 12A to P71. As a result, character data is written in the lower right corner of FIG. 12B. Next, the controller 11 updates from P71 to P72 so that the writing address of the next dot shifts one dot up and one dot left. Then, the character data of "0x02" to the left of "0x01" on the first line of FIG. 12A is read from the font memory 12a and written to P72.

In this way, the controller 11 lowers the reference write address by 7 dots, shifts the write address to 1 dot up and 1 dot to the left each time the character data is written by 1 dot, and reads the character data from the font memory 12a. Moves to the left by 1 dot. As a result, the first line of the character data is written along the D direction of FIG. 12B.

Next, the controller 11 shifts the reference write address one dot down and one dot left from P70, and shifts the read address of the character data from the font memory 12a to the second line. Then, as in the first line, the controller 11 lowers the reference writing address after migration by 7 dots and starts dot writing on the second line, and each time the character data is written by 1 dot, the writing address is moved up by 1 dot. The address for reading the character data from the font memory 12a is shifted to the left by 1 dot. As a result, the second line of the character data is written as shown in FIG. 12 (C).

Here, by rotating or tilting the character, as shown in the area R2 of FIG. 12C, a new dot is generated between the first line and the second line of the character data.

Therefore, the controller 11 converts the white dots surrounded by the black dots after the enlargement tilt processing into black dots.

Since the white dots of P78 in FIG. 12 (C) are surrounded by the black dots of P72, P73, P75 and P76 on the top, bottom, left and right, the controller 11 displays the white dots of P78 as black dots as shown in FIG. 12 (D). Convert to. On the other hand, the white dots on P79 in FIG. 12C are not converted into black dots because the dots on P74 and P77 are white dots.

The controller 11 repeats the above process from the data in the third row to the completion of writing the data in the last row.

By the above processing, as shown in FIG. 8 (C), an enlarged tilt character obtained by rotating the character "H" in FIG. 8 (A) by −45 degrees is created.

FIG. 13 is a flowchart showing an enlargement / tilting process when the characters are rotated by +30 degrees, +45 degrees, or +60 degrees. Here, it is assumed that the character is composed of 16 (row) × 8 (column) dots. Further, hereinafter, it is assumed that the data area to which the character data to which the expansion / tilt processing has been performed is written is initialized before the start of the expansion / tilt processing.

First, the controller 11 updates the write address of the buffer to a position N dots lower than the reference write address (S1). At +30 degrees, the N dots are 4 dots, at +45 degrees, the N dots are 7 dots, and at +60 degrees, the N dots are 14 dots. Next, the controller 11 reads character data for one dot from the font memory 12a (S2), and writes the read data to the write address updated in S1 (S3). Since the line width constituting the character may increase by enlarging the size of the character, one dot read from the font memory 12a is added to the buffer updated in S1 according to the enlarged size of the character. It may be expanded to the writing address of and the writing address of at least one dot adjacent to the writing address at the same time.

Next, the controller 11 determines whether or not the upper, lower, left, and right dots surrounding the dots written at the address adjacent to the left of the address where the data is written in S3 are black dots (print dots) (S4). .. If the top, bottom, left, and right dots are black dots (YES in S4), the controller 11 writes black dot data to the address adjacent to the left of the address in which the data was written in S3 (S5), depending on the rotation angle. The write address is updated, and the read address of the character data is moved to the right by 1 dot (S6). In the case of rotation of +30 degrees, the write address of S6 shifts to the right by 1 dot each time the character data is written by 1 dot, and further shifts to the top by 1 dot every time the character data is written by 2 dots. In the case of rotation of +45 degrees, the write address of S6 shifts one dot up and one dot right. In the case of rotation of +60 degrees, the write address of S6 shifts up by 2 dots and to the right by 1 dot each time the character data is written by 1 dot. If at least one of the upper, lower, left, and right dots is not a black dot (NO in S4), the process proceeds to S6 as it is.

The controller 11 determines whether or not the reading of the character data of the first line from the font memory 12a is completed (S7). If the reading of the character data of the first line is not completed (NO in S7), the process returns to the process of S2, and the character data of that line is written to the write address updated in S6.

On the other hand, when the reading of the character data of the first line from the font memory 12a is completed and expanded in the buffer (YES in S7), the controller 11 shifts the reference write address one dot down and one dot right to the right. (S8). Next, the controller 11 determines whether or not the reading of the character data of all the lines is completed (S9). If the reading of the character data of all the lines is not completed (NO in S9), the controller 11 shifts the reading address of the data to the reading address at the beginning of the next line (S10), and returns to the processing of S1. When the reading of the character data of all the lines is completed (YES in S9), this process ends.

FIG. 14 is a flowchart showing an enlargement / tilting process when the characters are rotated by −45 degrees. The preconditions are the same as in FIG.

First, the controller 11 shifts the write address in the initial state to the right by 22 dots, and sets the write address after the shift as the reference write address (S30). The number of dots for shifting the writing address to the right is not limited to 22 dots, but is changed according to the height and width of the characters and the rotation angle of the characters.

The controller 11 updates the write address of the buffer to a position 7 dots lower than the reference write address (S31). Next, the controller 11 reads the character data for one dot (S32) and writes the read character data to the write address (S33). Since the line width constituting the character may increase by enlarging the size of the character, one dot read from the font memory 12a is added to the buffer updated in S31 according to the enlarged size of the character. It may be expanded to the writing address of and the writing address of at least one dot adjacent to the writing address at the same time.

Next, the controller 11 determines in S33 whether or not the dots on the upper, lower, left, and right sides surrounding the dots adjacent to the right of the dots on which the character data is written are black dots (S34). When the top, bottom, left, and right dots are black dots (YES in S34), the black dot data is written to the writing address of the dot adjacent to the right of the dot in which the character data is written in S33 (S35), and the controller 11 The writing address is moved one dot up and one dot left, and the character data reading address is moved one dot left (S36). If the top, bottom, left, and right dots are not black dots (NO in S34), the process proceeds to S36 as it is.

The controller 11 determines whether or not the reading of the character data of the first line from the font memory 12a is completed (S37). If the reading of the character data of the first line is not completed (NO in S37), the process returns to the process of S32, and the character data of that line is written to the write address updated in S36.

When the reading of the character data of the first line from the font memory 12a is completed and expanded in the buffer (YES in S37), the controller 11 shifts the reference write address one dot down and one dot left (S38). ). Next, the controller 11 determines whether or not the reading of the character data of all the lines is completed (S39). If the reading of the character data of all the lines is not completed (NO in S39), the controller 11 shifts the reading address of the character data to the reading address of the beginning of the next line (S40), and returns to the processing of S31. .. When the reading of the character data of all the lines is completed (YES in S39), this process ends.

In this way, the controller 11 expands the data corresponding to the dots constituting the character data for each dot based on the set rotation angle and inclines the character data, so that the character data is not created. You can create magnified tilted characters.

When the enlargement size is specified in the enlargement size 21 of FIG. 6, the controller 11 writes 1 dot read from the font memory 12a to the write address of the buffer and at least 1 dot adjacent thereto. Expands to the address at the same time and expands the characters. After that, the controller 11 performs the enlargement tilt processing of FIG. 13 or FIG.

In FIGS. 9 to 12, the write start address is set at a position that is a predetermined number of dots lower than the reference write address, but the write start address is above, left, or right with respect to the "reference write address". It is also possible to set to. For example, in FIG. 8C, the reference write address is set to the upper right dot, the buffer write address is updated to a position 7 dots to the left of the reference write address, and the write address is shifted to the lower right to characterize. Even if it is expanded from the dot at the upper left end of, the expansion as shown in FIG. 8C is possible. Further, in FIG. 8C, the reference write address is set to the dot at the lower left, the write address of the buffer is updated to a position 7 dots above the reference write address, and the write address is shifted in the lower right direction to characterize. Even if it is expanded from the dot at the lower left end of, the expansion as shown in FIG. 8C is possible.

The present invention is not limited to the above-described embodiment, and can be variously modified and implemented within a range that does not deviate from the gist thereof.

1 Printer 11 Controller 12 Memory 13 Printing unit 14 Operation unit 15 Display unit 16 Interface (IF)

Claims (5)

Based on the set rotation angle of the character data, the write address corresponding to any one of the dots at the four corners of the area where the character data is developed is set as the reference write address, and is separated from the reference write address by a predetermined number of dots. The first means to update the write address to the position
A second means of reading data corresponding to each dot constituting the character data based on the set rotation angle and updating the read address each time the data corresponding to each dot is written.
The data corresponding to each dot read by the second means is written to the writing address, and each time the data corresponding to each dot is written, the writing address is written by the set rotation angle with respect to the horizontal direction. A third means to update to the write address of the dot placed at the tilted position,
When the writing of all the dots for one line constituting the character data is completed, the reference writing address is transferred by a predetermined amount based on the set rotation angle, and the reading address of the character data is transferred to the next line. 4th means to do
A fifth means for converting non-printing dots surrounded by print dots after expansion of the character data into print dots, and
A character data processing device characterized by being equipped with. The character data processing apparatus according to claim 1, further comprising a compositing means for synthesizing text data and dot by dot against a background of character data tilted by the set rotation angle. The character data processing apparatus according to claim 1 or 2, further comprising a thinning means for thinning out print dots of character data tilted by the set rotation angle according to the thinning pattern. When the set rotation angle is a positive angle with respect to the horizontal direction, the first means sets the write address corresponding to the upper left dot of the area where the character data is developed as the reference write address. The second means reads the data corresponding to each dot sequentially from the leftmost dot constituting the character data to the right, and the fourth means shifts the reference writing address to one dot down and one dot to the right.
When the set rotation angle is a negative angle with respect to the horizontal direction, the first means sets the write address corresponding to the upper right dot of the area where the character data is developed as the reference write address. The second means reads data corresponding to each dot sequentially from the rightmost dot constituting the character data in the left direction, and the fourth means shifts the reference writing address one dot down and one dot left. The character data processing apparatus according to any one of claims 1 to 3. Computer,
Based on the set rotation angle of the character data, the write address corresponding to any one of the dots at the four corners of the area where the character data is developed is set as the reference write address, and is separated from the reference write address by a predetermined number of dots. First means to update the write address to the location,
A second means of reading data corresponding to each dot constituting the character data based on the set rotation angle and updating the read address each time the data corresponding to each dot is written.
The data corresponding to each dot read by the second means is written to the writing address, and each time the data corresponding to each dot is written, the writing address is written by the set rotation angle with respect to the horizontal direction. Third means to update to the write address of the dot placed at the tilted position,
When the writing of all the dots for one line constituting the character data is completed, the reference writing address is transferred by a predetermined amount based on the set rotation angle, and the reading address of the character data is transferred to the next line. A program characterized by functioning as a fourth means for converting non-printed dots surrounded by printed dots after expansion of the character data into printed dots.

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