JP2791014B2 - Character processor - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a character processing device that transforms and outputs a character or a character string. 2. Description of the Related Art In a conventional character processing device such as a word processor, font data (generally stored as dot data) stored in a ROM of a character generator is stored in the horizontal direction by x. Double (1,1.5,2,4,1 / 2 times, etc.), expand or shrink y times (1,1.5,2,4,1 / 2 times, etc.) in the vertical direction and display on the display A device or the like for displaying or printing out from the position of the displayed cursor has been proposed. Also, in the typesetting input system, there has been proposed a model capable of designating long / flat, italic, rotation of characters, etc. for each character deformation in an input character string.
The character string is expanded in such a manner that horizontal and vertical box grouping, diagonal grouping, circumferential grouping, and the like can be performed. [Problems to be Solved by the Invention] However, in the former character processing device, since the built-in font data is generally stored as dot data, the output character quality after the deformation operation is significantly reduced. In addition, there is a limitation that the character string development method is limited to horizontal (horizontal composition) or vertical (vertical composition), and there is a problem that the expression format of the character string layout is significantly restricted. Further, in the latter character processing device, as described above, for each character deformation, long / flat, italic, character rotation, and the like can be designated. Or only in vertical cases, individual letter variants,
In other words, since it is only possible to rotate long / flat, italic, and character, etc., it is not possible to POP such as POP that requires design elements, that is, it is not possible to skew italic characters or circumscribe italic deformed characters. There was a problem that characters with a high design that could give a strong impression at first glance could not be output, and could be used only for limited applications. The present invention has been made in order to solve the above-described problems. An input character string can be deformed and developed on a circumference of a specified shape, and a deformed character with high design can be easily operated. An object of the present invention is to provide a character processing device capable of editing a layout. [Means for Solving the Problems] In order to achieve the above object, a character processing device of the present invention comprises: input means for inputting a character string; and character deformation information for the character string input from the input means. Character transformation designating means; developing method designating means for designating a developing method for a character string input from the input means; coordinate value input means for inputting developing position coordinates for a character string input from the input means; First calculating means for calculating the deformed character position coordinates of each character of the character string input from the input means based on the character deformation information specified by the character deformation specifying means; input from the coordinate value input means; The expanded position coordinates and the transformed character position coordinates calculated by the first calculating means on the circumference determined by the expanding method specified by the expanding method specifying means. Second computing means for computing contour position coordinates for expanding a transformed character string, and a transformation computed by the first computing means based on the contour position coordinates computed by the second computing means. Expanding means for expanding a transformed character string corresponding to the character coordinates in the storage means. [Operation] With the configuration described above, the input character string is transformed and developed on the circumference of the specified shape. [Embodiment] FIG. 1A is a block diagram for explaining the arrangement of a character processing apparatus according to an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a character transformation input unit, which displays characters on a CRT display 3 via a VRAM 2. A deformation designation screen (see FIG. 2A) is displayed. Reference numeral 4 denotes a character string development method input unit, which displays a character string development method designation screen (see FIG. 2B) on the CRT display 3 via the VRAM 2. Reference numeral 5 denotes a development position coordinate input unit, which displays a paper screen (see FIG. 2 (c)) showing an area for developing characters on the CRT display 3 via the VRAM 2. Reference numeral 6 denotes a character string input unit. After the developed position coordinate input unit 5 displays a paper screen on the CRT display 3, a character screen (see FIG. 2C) is displayed on the CRT display 3 via the VRAM 2. Reference numeral 7 denotes a pointing device, which is a character transformation designating means of the present invention.
The character transformation input unit 1 also serves as the expansion method designating unit and the coordinate value input unit. Character transformation information (long, flat, italic, etc.) displayed on the character transformation designation screen displayed on the CRT display 3 by the character transformation input unit 1 By designating a desired character transformation, a transformation of each character of the character string input from the keyboard 8 is instructed. In addition, pointing device 7
Specifies the desired character string expansion method among the expansion methods (horizontal, vertical, diagonal, and circumference) displayed on the character string expansion method specification screen displayed on the CRT display 3 by the character string expansion method input unit 4. By doing so, the expansion method for each character of the character string input from the keyboard 8 is commanded. Further, the pointing device 7 designates development position coordinates (for example, two or three arbitrary points) on the paper screen displayed on the CRT display 3 by the development position coordinate input unit 5. 9
Is a parameter storage unit for temporarily storing character deformation information, development information, and the like specified by the pointing device 7. 10 is a coordinate value register, which is a pointing device 7
The development position coordinates (the development start position coordinates and the development end coordinates) specified in (1) are temporarily stored. A character code storage unit 11 stores code information corresponding to a character string input from the keyboard 8. Numeral 12 denotes an operation unit serving as a first operation means of the present invention, and based on the character deformation information stored in the parameter storage unit 9, calculates a deformed character position coordinate corresponding to each character of the character string input from the keyboard 8. calculated, the calculated deformation character position coordinate via line L ₂ is sent to the arithmetic unit 13 as a second calculation means of the present invention. The operation unit 13 is determined based on the character string expansion method stored in the parameter storage unit 9 and the expansion position coordinate values stored in the coordinate value register 10 for the deformed character position coordinates transmitted from the operation unit 12. Coordinate transformation for developing the transformed character string on a circle passing through three points having an arbitrary angle with respect to the horizontal direction,
Each character of the transformed character string is expanded to an address on the VRAM 2 corresponding to the converted coordinate position. Incidentally, L ₁ is string expansion method input section 4 is a string deployment method designation screen on the CRT Deisupurei 3 in line, when the vertical or horizontal is specified,
Information for matching the x-coordinate or the y-coordinate value among the coordinates of the two points specified by the pointing device 7 is input to the development position coordinate input unit 5, and the pointing device 7
Forcibly match the x or y coordinates indicated by. FIG. 1 (b) is a system configuration diagram illustrating a character processing system having the character processing device shown in FIG. 1 (a), and the same components as those in FIG. 1 (a) are denoted by the same reference numerals. It is. In this figure, reference numeral 21 denotes a system control microcomputer, which includes an MPU 21a, an internal memory (ROM, RAM) 21b, a floppy disk 21c serving as an external memory, a cartridge 21d, a disk 21e, and the like. The internal memory 21b also serves as the parameter storage unit 9, the coordinate value register 10, and the character code storage unit 11. Reference numeral 22 denotes an output unit, which includes a high-speed printer 22a for recording an image on a recording material based on information converted into an electric signal from a laser beam printer or the like, an interface circuit 22b, and the like. Reference numeral 23 denotes an image memory which can store the image information developed in the VRAM 2, and the image information is read out when the output unit 22 accesses the image memory 23. Reference numeral 24 denotes a BMU, which controls rotation and movement of image data. Next, a modified character string output operation according to the present invention will be described with reference to FIGS. 2 (a) to 2 (d). 2 (a) to 2 (d) are schematic diagrams for explaining a modified character string output instructing operation according to the present invention, and the same components as those in FIG. 1 are denoted by the same reference numerals. FIG. 7A shows a character deformation screen, in which the character definition on the editing menu 31 is indicated by the pointing device 7 and the deformation definition 32 is displayed in multi-windows. It is defined as body, flat body, mirror image inversion, italic, shadow, middle coat, etc. In this display example, the pointing device 7 indicates a long body and an oblique body,
This is a state in which the percentage is “50”, the oblique direction is the x direction, and +5 is designated and input by the keyboard 8. In this embodiment, +5 means + 15 °. FIG. 7B shows a character string development method designation screen, which shows a state in which the character type table 33 is displayed in a multi-window when the "character type" on the editing menu 31 is designated by the pointing device 7. 33, an area 34 for designating an unfolding method is provided. In this embodiment, unfolding methods such as “horizontal, vertical”, “diagonal”, “circle”, and “box set” are prepared. The case where “circumference” is selected by the pointing device 7 is shown. In addition,
When the rotation of a character is designated, the character rotation 35 is instructed by the pointing device 7 and the amount of rotation is further input by the keyboard 8, whereby the character string input from the keyboard 8 can be rotated. FIG. 3C shows a paper screen and a character string input screen.
This shows a state in which the expansion start position coordinates Ps, the expansion end position coordinates Pe, and the circumferential specific position coordinates Pq, which are the expansion position coordinates, are designated by the pointing device 7, and the expansion start position coordinates Ps,
When the development end position coordinates Pe and the circumference specific coordinates Pq are designated by the pointing device 7, the area 36 serving as a character string input screen and the input mode area 37 are displayed on the CRT display 3 as shown in FIG. Is displayed. In this embodiment, a case where a character string, for example, “Aioe, Kakikukeko, Sashisusesoso” or “Tatsutsuto Nan Naneno” is input from the keyboard 8 is displayed. FIG. 4D shows a modified character string display screen in which character strings 38 and 39 (“Aioe, Kakikukeko, Sashisusesoso”, “Tatsutetsu and Nanoneno”) input on the character string input screen are displayed. The expansion method specified on the character string expansion method specification screen, that is, the character string deformed based on the character deformation information (long, italic) specified in the “circumference” and the character deformation screen, and the expansion start position coordinates Ps, unfolding end position coordinates Pe, circumference specific position coordinates Pq
The state displayed based on is shown. First, the character transformation screen shown in FIG. 2 (a) is displayed on the CRT display 3, and desired character transformation information, for example, long and italic, is designated from the transformation definition 32 by the pointing device 7, and the keyboard 8 is displayed. By inputting the% as "50" and inputting the amount of italic, that is, +5 in the x direction, the deformed character 32a is displayed in the space of the deformed definition 32, and the input parameters are input by the character deformation input unit 1. Write to the parameter storage unit 9. When the writing is completed, the character string development method designation screen shown in FIG. 2 (b) is displayed on the CRT display 3, and by operating the pointing device 7, the development information provided in the area 34 in the character type table 33 is displayed. Development method, for example, "circumference"
Is input, the character string expansion method input unit 4 writes the expansion method “circumference” into the parameter storage unit 9. When this writing is completed, the paper screen and the character string input screen shown in FIG. 2C are displayed, and the system waits for designation of the development value coordinates by the pointing device 7 and character string input by the keyboard 8. Here, the expansion start position coordinates Ps, the expansion end position coordinates Pe, and the circumference specific position coordinates Pq, which are the expansion position coordinates for the character string input from the keyboard 8 by the pointing device 7, are specified.
For example, “Aioe, Kakikukeko, Sashisusesoso” and “Tatsutsute no Naneno” are Area 3 of CRT Display 3.
Displayed in 6. Next, the determined deployment start position coordinates Ps,
The development position coordinate input unit 5 writes the development end position coordinates Pe and the circumference specific position coordinates Pq into the coordinate value register 10,
The character string input unit 6 writes the code information corresponding to “Aioo, Kikukoke, Sashisusesoso” and “Tatsutsuto Nan Naneno” into the character code storage unit 11. On the other hand, the calculating unit 12 calculates the deformed character position coordinates from the character deformation information stored in the parameter storage unit 9, for example, the length, the italic, and the amount of the italic. In this embodiment, each character data is composed of an array having the outline portion of the character image as a principal point i, and one character is defined by the coordinate values (xi, yi) of the principal point.
Here, i is 0 to n-1. Therefore, the modified character value coordinate value (xi, Yi) with respect to the coordinate value (xi, yi) is obtained by the following equation (1). However, the parameters a ₁ , a ₂ , b ₁ , b ₂ ,
c ₁ and c ₂ are determined by the flowchart shown in FIG. 3 based on numerical values selected or input in the modification definition 32 displayed on the character modification screen shown in FIG. 2 (a). Next, the parameter setting operation according to the present invention will be described with reference to FIG. FIG. 3 is a flowchart for explaining the parameter setting operation according to the present invention. In addition, (1) to (9) show each step. The parameter a ₁ "1", "0" to the parameter a _2, "0" to the parameter b _1, "1" to the parameter b _2, parameter
"0" to c _1, respectively excisional to "0" to the parameter c ₂ (1). Thus, the initial setting is completed. Then, the arithmetic unit 12 determines whether the reference to the long body parameters storage unit 9 is made (2), the process proceeds to NO if step (4) or later, step to YES if the parameters a ₁ (1 with a value obtained by multiplying the rx ₁ to parameter a _1, which is set to excisional (a ₁ = a ₁ * rx ₁₎ in), multiplied by rx ₁ to parameter b ₁ set in step (1) to the parameter b ₁ Is set (b ₁ = b ₁ * rx ₁ ) and the parameter c ₁
The step value obtained by multiplying the rx ₁ to parameter c ₁ set in (1) excisional (c ₁ = c ₁ * rx ₁₎ to (3). Then
In arithmetic unit 12 determines whether the reference to the long body parameters storage unit 9 have been made (4), the process proceeds to later NO if step (6), YES if step the parameter a ₂ (1) The value obtained by multiplying the set parameter a ₂ by ry ₁ is set (a ₂ = a ₂ * ry ₁ ), and the parameter b ₂ is multiplied by ry ₁ to the parameter b ₂ set in step (1). value excisional _{(b 2 = b 2 * ry} 1) as well as, excisional a value obtained by multiplying a ry ₁ to the parameter c ₂ set in step (1) to the parameter c ₂ (c ₂ = c ₂ * ry ₁₎ (5). Next, the operation unit 12 determines whether or not the x-direction italic is designated by referring to the parameter storage unit 9 (6). If NO, the process proceeds to step (8). If YES, the process proceeds to step (1) or step (1). step the parameter a ₁ set in (3) (1) or rx against a ₂ set in step (5)
Set the value obtained by adding the value obtained by multiplying ₂ (a ₁ = a ₁ + a ₂ * rx ₂ )
While excisional and a value obtained by adding the rx ₂ multiplied values for b ₂ set in step (1) or step (3) step the parameter b ₁ set in (1) or step (5) The set (b ₁ = b ₁ + b ₂ * rx ₂ ) is set, and the parameter c ₁ set in step (1) or step (3) is set to c ₂ set in step (1) or step (5). Then, a value (c ₁ = c ₁ + c ₂ * rx ₂ ) is set to a value obtained by adding a value obtained by multiplying rx ₂ to (7).
Next, the arithmetic unit 12 refers to the parameter storage unit 9 to determine whether or not the y-direction italic designation has been made (8).
If exit control, YES if step (1) or step (5) the parameter a ₂ set in step (1), (3), to a ₁ set in any of (7) a value obtained by adding the value obtained by multiplying a ry ₂ Te excisional _{(a 2 = a 2 + a} 1
* Ry ₂₎ as well as excisional a step (1) or step (5) step (1) to the parameter b ₂ set in, (3), with respect to b ₁ set in any of (7) A value (b ₂ = b ₂ + b ₁ * ry ₂ ) obtained by adding the value obtained by multiplying ry ₂ (b ₂ = b ₂ + b ₁ * ry ₂ ) is set, and the parameter c ₂ set in step (1) or step (5) is set to step (1),
Ry ₂ for c ₁ set in either (3) or (7)
Set the value obtained by adding the value multiplied by (c ₂ = c ₂ + c ₁ * ry ₂ )
Is set (9), and the control is terminated. Note that rx ₁ , rY ₁ , rx ₂ , and ry ₂ are deformation information stored in the parameter storage unit 9 in advance, and the deformation information rx
₁ corresponds to the long body ratio of the long body pattern 41a of the basic character parameter 41 shown in FIG. 4 (a), and the deformation information ry ₁ is the flat body pattern 42a of the basic character pattern 42 shown in FIG. 4 (b). the response to Heitai rate, deformation information rx ₂ is tangent value when the x-direction italic angle x-direction italic pattern 43a of the base character pattern 43 shown in FIG. 4 (c) and θx (tan (θx) ), And the deformation information ry ₂ corresponds to a tangent value (tan (θy)) when the y-direction oblique angle of the y-direction oblique pattern 44a of the basic character pattern 44 shown in FIG. doing. The modified character value coordinate value (xi, Yi) obtained in this way
Is designated on the character string development method designation screen shown in FIG. 2B. In this embodiment, "diagonal" (stored in the parameter storage unit 9) and the paper screen shown in FIG. Based on the expansion start position coordinates Rs, expansion end position coordinates Pe, and circumference specific position coordinates Pq specified by the pointing device 7 on the character string input screen, the calculation unit 13 calculates the modified character string expansion coordinate values as described later. . 5 (a) to 5 (c) are schematic diagrams for explaining a modified character string development coordinate value calculation operation by the calculation unit 13 shown in FIG. 1 (a), and FIG. 5 (a) shows coordinate values. The three coordinate values Ps (xs, ys), Pe (xe, ye) and Pq stored in the register 10
From (xq, yq), the center coordinate O (xc, yc) radius r of the circumference
And the calculation for obtaining the character development start angle sd on the circumference thereof. That is, the center coordinate Oc of the circumference
(Xc, yc) is two line segments ▲ ▼ and ▲ ▼
Is easily found as the intersection of the perpendicular bisectors of And the start angle sd is sd = atan ((ys−yc) / (xs−
xc)). Here, atan () is an inverse trigonometric function for finding an angle having a specified value as a tangent value. Here, the rotation angles are all expressed in counterclockwise angles with a line segment extending in the positive x direction (horizontal direction in the figure) as a reference line, with the rotation center as a base point. Hereinafter, the processing for the i-th character in the character string composed of n characters stored in the character code storage unit 11 of FIG. 1A will be generalized and described. First, in the case of the first character of the character string (i = 1), the center angle tdi = sd and the position coordinates Moi (xmi, ym) in FIG.
i) = Ps (xs, ys). Next, the character width Wi of the corresponding character is obtained. Figure 5 (c) is a diagram showing an operation for obtaining the above-described operation coefficient _{a 1, b 1, c 1} , and a _2, b _2, c ₂ character width Wi of the relevant character determined by the arithmetic unit 12 using It is. That is, the coordinate value that defines the character width before replacement is
If (0,0) and N ₁ i (w, 0), then Wi = a ₁ * w. Θi in FIG. 5 (b) is a rotation angle required when the character is developed from a predetermined position Moi on the circumference. In the case of the first character (i = 1), Moi (xmi, ym
i) = Ps (xs, ys) and tdi = sd. At this time, the rotation angle θi is θi = tdi− (φi + π / 2)
More required. This equation holds when tdi has any angle value. Here, φi is 1/2 of the center angle of the circumference, that is, φi = as
in ((Wi / 2) / r), and a sin () is an inverse trigonometric function for finding an angle having a given value as a sine. From the values obtained as described above, it is possible to obtain a final exchange coefficient when the data is developed on the circumference. That is, A ₁ = a ₁ * cos (θi) −a ₂ * sin (θi) B ₁ = b ₁ * cos (θi) −b ₂ * sin (θi) C ₁ = c ₁ * cos (θi) −c ₂ * Sin (θi) + xmi A ₂ = a ₁ * sin (θi) + a ₂ * cos (θi) B ₂ = b ₁ * sin (θi) + b ₂ * cos (θi) C ₂ = c ₁ * sin (θi) + C ₂ * cos (θi) + ymi where sin () and cos () are trigonometric functions for finding a sine value and a cosine value for a given angle, respectively. Next, the transformation variables for the individual characters in the character string input from the keyboard 8 based on the flowchart shown in FIG. 6 are converted into the principal point coordinate values ((xi, yi), However, the outline coordinate position ((xi, Y) of the character of each character which is developed on the final character string by performing the operation on i = 0 to n-1
i), where i = 0 to n-1). FIG. 6 is a flowchart for explaining the outline coordinate position calculation processing procedure according to the present invention. (1) to (4)
Indicates each step. First, “0” is set to the variable i, and the contour coordinate position Xi, Y
i is calculated based on the following equation (4) (2). Next, “1” is incremented to the variable i (3). Next, it is determined whether or not the variable i is smaller than the number of main points n of the outline portion of each character image (4). If YES, the process returns to step (2), and if NO, the control is terminated. Based on the contour coordinate positions Xi, Yi obtained in this way, a character string input from the keyboard 8 is expanded in the VRAM 2 and transformed into a character string 38, 39 on the CRT display 3, that is, a long and italic font. Can be expanded and displayed on the imaginary circumference. The character position coordinates Moi (x) of the second and subsequent characters (i> 1)
mi, ymi) and the rotation angle θi can all be determined using the calculation result of the immediately preceding character. That is, the final conversion coefficient A _1i-1 , B for the immediately preceding character
_1i-1 , C _1i-1 and A _2i-1 , B _2i-1 , C _2i-1 , and the character width wi _-1 before the conversion of the immediately preceding character, the _i- th character position coordinate Moi (xmi, ymi) is M ₁ i− ₁ . That _{xmi = A 1i-1 * w} i-1 + xm i-1 ymi = A 2i-1 * w i-1 + ym is _i-1 i th character rotation angle θi is 3-3 view of (d) the _{td i = td i-1 -2} * φ i-1 becomes tdi may total wager to the aforementioned formula when 1/2 of the central angle of the immediately preceding character phi _i-1 and as. By repeating the above for each character in the character string as shown in the flowchart of FIG. 7, the character expansion operation of the present invention can be processed. In the above embodiment, the case where the transformed character string is developed from the start point to the end point of the circumference determined by the three points specified by the pointing device 7 has been described, but the determination is performed by the three points specified by the pointing device 7. It is also possible to apply the present invention to develop a deformed character string only in an arbitrary section between the starting point and the ending point of the circumference of the circle, thereby displaying or outputting a character string having a very high design effect. In the embodiment, the modified character string is transferred to the CRT via the VRAM2.
Although the case of displaying on the display 3 has been described,
By expanding the displayed deformed character string in the image memory 23 shown in FIG.
It is also possible to output the transformed character string displayed on the RT display 3 as an image. [Effects of the Invention] As described above, according to the present invention, a character string to be input can be deformed and developed on the circumference of a specified shape, and a layout character can be edited by a simple operation with a deformed character having a high design. it can.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 (a) is a block diagram for explaining the configuration of a character processing apparatus showing one embodiment of the present invention, and FIG. 1 (b) is shown in FIG. 1 (a). FIGS. 2A to 2D are schematic diagrams illustrating a modified character string output instruction operation according to the present invention, and FIGS.
FIGS. 4A to 4D are flow charts for explaining a parameter setting operation according to the present invention. FIGS. 4A to 4D are schematic views for explaining graphic elements dependent on character deformation parameters.
6A to 6C are schematic diagrams for explaining a modified character string development coordinate value calculation operation by the calculation unit shown in FIG. 1A, and FIG. 6 is a flowchart for explaining a contour coordinate position calculation processing procedure according to the present invention. FIG. 7 is a flowchart of a series of coordinate calculation processing for developing characters in a character string on the circumference. In the figure, 1 is a character transformation input unit, 2 is a VRAM, 3 is a CRT display, 4 is a character string development method input unit, 5 is a development position coordinate input unit, 6 is a character string input unit, 7 is a pointing device, 8 Denotes a keyboard, 9 denotes a parameter storage unit, 10 denotes a coordinate value register, and 11 denotes a character code storage unit.

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Masaki Hamada               3-30-2 Shimomaruko, Ota-ku, Tokyo               Inside Canon Inc. (72) Inventor Akifumi Shirasaka               3-30-2 Shimomaruko, Ota-ku, Tokyo               Inside Canon Inc. (72) Inventor Tanaka Kensaku               3-30-2 Shimomaruko, Ota-ku, Tokyo               Inside Canon Inc. (72) Inventor Takahiro Kato               3-30-2 Shimomaruko, Ota-ku, Tokyo               Inside Canon Inc.                (56) References JP-A-60-107695 (JP, A)                 JP-A-59-220365 (JP, A)                 JP-A-60-58853 (JP, A)

Claims (1)

(57) [Claims] Input means for inputting a character string; character deformation specifying means for specifying character deformation information for the character string input from the input means; and expansion method specifying means for specifying an expansion method for the character string input from the input means A coordinate value input unit for inputting a development position coordinate for a character string input from the input unit; and a character string input from the input unit based on character deformation information specified by the character deformation specifying unit. First calculating means for calculating the deformed character position coordinates of the character; and the developing position coordinates input from the coordinate value input means and the developing method specified by the developing method specifying means, on a circumference determined by the developing method. A second calculating means for calculating contour position coordinates for developing a deformed character string corresponding to the deformed character position coordinates calculated by the first calculating means; Expansion means for expanding a deformed character string corresponding to the deformed character position coordinates calculated by the first calculating means in the storage means based on the outline position coordinates calculated by the calculating means. Character processor.