JPH0627926A - Character processor - Google Patents

Abstract

PURPOSE:To generate natural connected characters and to select the thickness of their connection parts by the character processor which has the characters in the form of outline data and outputs them. CONSTITUTION:The character processor is equipped with a character information storage means 1 which stores pattern data on the characters, two pieces of skeleton start point information on ways of writing the characters, and two pieces of skeleton end point information, an indicating means 2 which indicates the formation of the connected characters, an indicating means 3 which specifies the line width of the connection parts of the connected characters, a line width information storage means 4 which stores the specified line width, a reading means 5 which reads characters to be connected out of the character information storage means 1 by receiving the indication for the connected character formation, and a connected character generating means 6 which finds the intersection of the 1st and 2nd read characters by crossing their pieces of skeleton end points and skeleton start point, specifies the intersection positions as two points having the specified line width, and connects the two skeleton end points, two points having the specified line width, and two skeleton start points by spline curves, etc., respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a character processing apparatus which has characters in an outline font and creates a cursive style document.

[0002]

2. Description of the Related Art Conventionally, as a structure of an apparatus for creating a cursive type document, one character data is divided into upper and lower parts like a "character pattern composition method" of Japanese Patent Laid-Open No. 58-155490. And has data for connecting the lower part of the upper character and the upper part of the lower character (see FIG. 14), or like the "document creating device" in Japanese Patent Laid-Open No. 62-177586,
Data having the start point and end point of a character and connecting the start point and end point with an equation (see FIG. 15), or JP-A 1-2219
In order to connect characters smoothly, as in the "Image processing device" of Japanese Patent Publication No. 79, the characters are formed so that they start at the same angle and the same position and end at the same angle and the same position. Things (see FIG. 16) and the like are known.

[0003]

However, in the method described in Japanese Patent Laid-Open No. 58-155490 described above, one character data is divided into two upper and lower ones, unlike ordinary character data of one character per character. There is a problem that it is difficult to produce a smooth curve in one character when the outline data has it. In addition, since it is necessary to have many combinations for the continuation characters, only 64 combinations of 80 × 80 can be obtained even if only the kana is combined.
Data of 00 or more was required, and it was physically impossible to combine with kanji.

The device described in Japanese Patent Laid-Open No. 62-177586 has a problem in that the start point and the end point are connected by an equation, but they are not connected smoothly by simply connecting them. Therefore, in order to tie it smoothly, it is conceivable to use characters that make a rule that they start at the same angle and end at the same angle.

In the apparatus described in Japanese Patent Laid-Open No. 1-219799, as described above, the characters are formed such that they start at the same angle and the same position and end at the same angle and the same position. There was a problem that the characters became unnatural.

[0006]

FIG. 1 is a block diagram clearly showing the basic configuration of the present invention. In the figure, the character processing device of the present invention stores the pattern data of a character to be displayed or printed in a character processing device having a character as outline data and outputting it to a display device or a printing device. A character information storage unit 1 for storing two skeleton start point information and two skeleton end point information in writing, and an instruction unit 2 for instructing continuous character formation.
A designating means 3 for designating a line width connecting the first character and the second character for forming a continuous character, a line width information storage means 4 for storing the specified line width, and a continuous character forming In response to the instruction, the reading means 5 for reading the character to be the continuation character from the character information storage means 1 and the read first character
The intersection point is obtained by connecting the skeleton end point and the skeleton start point of the second character and the skeleton point, and the intersection point positions are designated as two points having the designated line widths, and the two skeleton end points are designated. It is characterized by further comprising a character generator 6 for continuously connecting two points each having a line width and two skeleton starting points respectively with a spline curve or the like.

A spline is an approximate function that complements a value given at a finite number of points on an interval, and shows a function uniquely determined in each small interval, for example, a polynomial or a simple function corresponding to it. The curve refers to a curve in which differentiation is smoothly connected to a sufficient degree at a joint and an end point.

The skeleton end point means the end point of the skeleton of the character whose contour does not change even when the character is continued in the first character, and the skeleton start point is the contour when the character is continued in the second character. It means the starting point of the character skeleton that does not change.

[0009]

According to the present invention, when the line width connecting the first character and the second character in the continuation character is specified and the continuation character formation is instructed, the continuation character is stored in the first character. The skeleton end point information and the skeleton start point information of the second character are read out, the intersection point connecting these end points and the start points is determined, the line width at the intersection point position is determined, and then the skeleton of the first character The two coordinates of the end point, the coordinates of two points with the specified line width, and the two coordinates of the starting point of the skeleton of the second character are connected by a spline curve, etc. Will be generated.

[0010]

1 is a block diagram of a Japanese word processor which is an embodiment of the present invention. In the figure, reference numeral 11 is an input device which functions as an instruction means and a designation means, and is composed of a keyboard for inputting characters and the like, a pointing device and the like. Reference numeral 12 is a CPU that functions as a reading unit. Reference numeral 13 is a display device including an LCD, a CRT and the like. Reference numeral 14 is a sentence buffer that functions as a character information storage unit, and stores characters and the like that are input from the input device 11 and processed. Reference numeral 15 is a character complementing device that functions as a continuous character generating means in cooperation with the CPU 12, and also includes a line width information storage means. Reference numeral 16 is a character expansion buffer, 17 is a complement control flag, 18 is outline font data, and 19 is a printer.

With such a configuration, the continuous character processing of this embodiment will be described with reference to the flowchart shown in FIG. In FIG. 3, when an output command is issued from the CPU 12, the contents of the character expansion buffer 16 and the complement control flag 17 are first initialized (step 501). Next sentence buffer 1
Character data is fetched from the beginning of step 4 (step 502), and then the next character is fetched from the sentence buffer 14 (step 503).

Next, it is checked whether it is the head (step 504). The first character is at the beginning of the line, so there is no previous character. Therefore, the skeleton starting point is not subjected to continuous character processing (step 505). Further, in the case of a character having no skeleton start point, the additional character processing is not performed. That is, it is checked whether it is the end of line (step 506), and if YES, there is no character thereafter, so the skeleton end point is not subjected to continuous character processing (step 507).

In the case of a punctuation mark, the additional character processing is not performed (step 508 → 507). In other cases, that is, if it is not the beginning of the line, the end of the line, or the punctuation mark, the continuous character processing is executed for the next character (step 509 → 510).

FIG. 4 is a table for determining whether or not the starting point processing should be performed. If there is a skeleton starting point and there is a skeleton ending point of the previous character, processing of the continuous character for the starting point is performed. Otherwise, the processing of continuous characters is not performed.

FIG. 5 is a table for determining whether or not the end point processing should be performed. If there is a skeleton end point and there is a skeleton start point for the next character, the continuous character processing for the end point is performed. Otherwise, the processing of continuous characters is not performed.

FIG. 6A shows an example of outline data. The outline of the character is stored as straight line, spline curve, or Bezier curve data. In addition, the characters are disassembled into parts such as the radicals and held in layers to reduce the capacity. The dots represent the points of passage of the outline. Bezier curves have control points outside the contour. The line represents the contour.

When continuing a character, the end point of the previous character and the start point of the next character are connected. However, when comparing the character with the case where there is only one character, one part of the end point and one part of the start point are connected. There is some deviation (see FIG. 6B). The thick line shows the case of continuous characters, and the thin line shows the case of normal characters. The start point and the end point where there is no deviation are called the skeleton start point and the skeleton end point.

FIG. 6D shows an example of a skeleton start point and a skeleton end point. X represents the skeleton start point and the skeleton end point. This example is the position of the line in the skeleton, and depending on how to hold the data such as the Bezier curve with the control point, it is necessary to hold it so that it will change from around this position.

FIG. 6D shows the skeleton start point (or skeleton end point).
It is an example of a character without. Some characters may not be continuous characters. In this case, there is no skeleton start point or skeleton end point. In the case of "ga", there is no skeleton end point.

FIG. 7 shows the difference in the starting point processing. 7A shows the case of normal processing, and FIG. 7B shows the case of continuous characters. FIG. 8 shows the difference in the end point processing. FIG. 8A shows the case of normal processing, and FIG. 8B shows the case of continuous characters.

FIG. 9 shows an example of a continuation character. FIG. 9A shows the case of continuing. FIG. 9B shows the case where the continuation is not performed. 10 (a), (b), and (c) are examples of the process of changing the character spacing and balancing the continued characters. You may use the table to adjust the most balanced spacing according to the combination of letters.

FIG. 11 shows the types when continuing. Figure 1
1 (a) is an example when the thickness is changed. FIG. 11B is an example when the image is blurred. FIG. 12 is a selection screen for the continuous characters. By specifying the selection items on the screen by operating the input device, it is possible to select whether or not to continue the characters, what to do with the thickness, and whether or not to blur.

FIG. 13 shows an example in which a curve of a character and a portion where the character continues is complemented by a spline curve. Let P be the intersection of the two end points A and B of the character and the two start points C and D of the next character. When the thickness at the position P is determined, the positions are designated as P1 and P2. In order not to rattle the connection at A, B, C, and D, points where a length of 1/20 of the distance between ACs is extended above the characters are defined as A ′ and C ′. (It is not the point on the straight line of AC but the point inside 1 / 20th from A on the curve of the preceding character is A ′. The same shall apply hereinafter.)

Similarly, the point where BD is extended on the character is B ',
D '. Connect A ', A, P1, C, C'with a spline curve. Similarly, B ', B, P2, D and D'are connected by a spline curve. The thickness of the line becomes thin when P1 and P2 are close to P, and becomes thick when they are separated. In this way, it is possible to realize the thickness and fading of the continuation portion of the continuation character.

[0025]

According to the present invention, when a continuation character is created, the connection between characters becomes smooth, and the line thickness and faintness of the connected portion can be selected.

[Brief description of drawings]

FIG. 1 is a block diagram showing a basic configuration of the present invention.

FIG. 2 is a block diagram showing a configuration of a Japanese word processor which is an embodiment of the present invention.

FIG. 3 is a flowchart showing a continuous character process of the embodiment.

FIG. 4 is a start point processing reference table according to the embodiment.

FIG. 5 is an end point processing reference table according to the embodiment.

FIG. 6 is an explanatory diagram showing outline data according to the embodiment.

FIG. 7 is an explanatory diagram showing a start point process of the embodiment.

FIG. 8 is an explanatory diagram showing end point processing according to the embodiment.

FIG. 9 is an explanatory diagram showing continuation characters in the example.

FIG. 10 is an explanatory diagram showing character spacing processing according to the embodiment.

FIG. 11 is an explanatory diagram showing selection of thickness of continued characters according to the embodiment.

FIG. 12 is an explanatory diagram showing a continuous character selection screen of the embodiment.

FIG. 13 is an explanatory diagram showing a process of a connecting portion of continuous characters.

FIG. 14 is an explanatory diagram showing conventional continuous character processing.

FIG. 15 is an explanatory diagram showing conventional continuous character processing.

FIG. 16 is an explanatory diagram showing conventional continuous character processing.

[Explanation of symbols]

 1 Character Information Storage Means 2 Designating Means 3 Designating Means 4 Line Width Information Storage Means 5 Reading Means 6 Continuation Character Generating Means

Claims (1)

[Claims] 1. A character processing device having a character as outline data and outputting to a display device or a printing device, stores pattern data of a character to be displayed or printed, and two skeleton starting points in writing the character. Character information storage means for storing information and two skeleton end point information, instructing means for instructing continuous character formation, and line width connecting the first character and the second character for forming continuous character Specifying means, a line width information storage means for storing the specified line width, a reading means for receiving a character to be a continuation character from the character information storage means in response to an instruction to form a continuation character, and a read-out first character. An intersection is obtained by intersecting and connecting the skeleton end point and the skeleton start point of the first character and the second character, and the intersection point position is defined by the specified line width.
Character processing characterized by comprising a point character designating means for continuously connecting two skeleton end points and two skeleton starting points and two skeleton start points each smoothly with a spline curve or the like. apparatus.