JP2956784B2 - Kanji font data conversion method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for converting a kanji phant into data as a set of outlines of "pictures" constituting the phantom.

[Conventional technology]

2. Description of the Related Art Conventionally, as a method of converting a kanji font into a data, a method of mechanically processing an original kanji font prepared as an analog image and converting it to an outline vector is known.

[Problems to be solved by the invention]

However, such a method and a so-called "outline font" converted into data by the method have the following problems.

In other words, a kanji font can be originally defined as a set of stroke patterns of a finite number of strokes, but according to the conventional method, the generation of intersection vectors due to the intersection of strokes and the continuation of outline curves Sex disconnection results in a large amount of harmful redundant data. Therefore, a considerably large amount of memory is required for storing Kanji font data. In addition, when performing font deformation or correction, processing is limited to the "character" as the minimum unit, so partial deformation / correction of wire diameter (weight) and detail patterns (such as "scale") can be easily performed. Can't do it. Further, the conventional data conversion method requires an original analog font, and thus is not useful for the kanji font design process.

An object of the present invention is to provide a new kanji font data conversion method which can solve the above-mentioned problems.

[Means for solving the problem]

The present invention provides a structure description parameter group of a single-line stroke corresponding to the skeleton of an "image" outline that constitutes a "partial" or "nearby" of a kanji font, its thickness, a starting pattern,
A structure table in which the structure of an “image” outline is represented by a group of detailed pattern structure description parameters such as a knot pattern and a terminal pattern, and a parameter group describing the outline structure of the “image” is hierarchically registered; By letter,
A numerical table in which specific numerical groups for rendering the structural description parameter group of the "image" outline constituting the numerical table are registered, and a character table in which the structural table and pointers to the numerical tables are registered for each character. It is characterized by having.

The structure table includes a “proximal” table, an “image” table, an “image” function table, and a detail pattern table. “Draw” function table is “Draw”
It is a table that registers the number of points that need to define the start point, inflection point, and end point of the single line stroke, which is the outline skeleton, the number of thicknesses that need to be defined, and a pointer to the detail pattern table. This is a table in which the number of points for which a pattern needs to be defined and the numbers of points on a single-line stroke serving as a base point are registered. The "image" table is a pointer to the "image" table for each "uneven" or "nearby" image. Is registered in the table, and the "nearby" table is a table in which pointers to the "picture" table are registered separately for "uneven" or "nearby".

[Operation] According to the present invention, the outline of a "kan" of a kanji font is represented by basically independent elements such as a skeleton and details, and the qualitative structure and the quantification (drawing) of the kanji font are described. Since the numerical values are described independently, the skeleton design and the detail design, which are independent processes in character generation, can be performed independently.
In other words, moving the skeleton point does not change the detail pattern, and conversely changing the detail pattern does not change the skeleton. Also, since the generation of harmful redundant data as in the conventional method can be greatly reduced, the amount of data of kanji fonts can be reduced, and the amount of memory for storage and the amount of data processing for generation and processing are reduced. be able to.

In addition, traditionally, Kanji font design (generation)
Had to be done on a character-by-character basis, regardless of the tool used, and because kanji had complex patterns and huge character types, it required a huge amount of work and time.

On the other hand, according to the present invention, various characters can be easily formed by defining the qualitative structure of the font using a minimum required table such as a detail pattern table and an "image" function table common to many character types. Can be generated. In character design, freedom is an element that can be said to be a life element, so it is extremely difficult to automatically generate all kanji fonts according to the present invention. There is no need to prepare it, and a method of automatically generating a prototype and editing it to complete individual kanji fonts can be easily adopted, thereby dramatically improving the kanji font design process.

Further, according to the present invention, it is possible to easily measure and evaluate the black / white ratio and the uniformity of the center of gravity, which are important in font design.

〔Example〕

FIG. 1 is a block diagram showing a functional configuration of one embodiment of the present invention. 1 is an input unit for inputting a character code and the like, 2 is a table memory for storing a character table T1, a structure table T2 and a numerical value table T3, and 3 is a corresponding kanji font by referring to a table (table) in the table memory 2 according to the character code. Reference numeral 4 is a drawing unit for drawing a kanji font using the data, and reference numeral 5 is an output unit for displaying, printing, or storing the drawn kanji font.

FIG. 2 is an explanatory diagram schematically showing the detailed structure of each table and how to refer to it, using the Chinese characters “matsu” and “pha” as examples.

The structure table T2 is a parameter group table that hierarchically describes the outline structure of the “picture” as a component of “partial” or “side”, and includes a “partial” table T2a, a “table” table T2b, It consists of a function table T2c and a detail pattern table T2d.

The “side-by-side” table T2a is for each “side-by-side” or “side-by-side” for the purpose of referring to the information of the “drawing” constituting this, and
This is a table in which pointers to b are registered. “Drawing” table T2b
Is a pointer to the corresponding address in the “drawing” function table T2c that defines a point group and a curve type for drawing an outline table of various “drawings” (horizontal, vertical, left-padding, right-close, etc.) This is a table registered for each "image".

One “picture” is represented by three types of independent parameters shown in Table 1. However, in order to facilitate understanding of the following description, “picture” is used.
5 are shown in FIG.

The "image" function table T2c has the contents as shown in FIG. The first item in the table is the name (type) of "image", and here, the five types of "image" shown in FIG. 5 are exemplified.
The second term is the starting point, inflection point or midpoint (only when necessary), and the ending point (p1, p2, p3 in FIG. 5), which are the points that need to define the single line stroke (core image), which is the skeleton of the "picture". ). However, this single stroke or skeleton image is not a simple geometric centerline of the "draw" outline (geometric centerlines are generally meaningless). The third term is the data of the thickness (weight), which is the detail of the "image", and the thickness parameter of the linear (linear) portion of the outline that needs to be defined (w1, w2 in FIG. 5).
It is represented by the number of The fourth term is a pointer to a detail pattern table T1d for referring to information of a necessary detail pattern which is a detail of “picture”.

The detail pattern table T2d is a table having contents as exemplified in FIG. 4, and for each detail pattern,
The number of points that need to be defined (1, 2, ... in Fig. 5) and the number of the base point (the point that matches one of the skeleton definition points) are registered. It is a table. Here, the detail pattern is a standardized pattern having the skeleton of the “image”, that is, the point of the single-line stroke as the origin (base point), and the starting point pattern (stroke entering pattern) and the bending point with the starting point as the base point. It is divided into a knot pattern as a base point and an end pattern (stroke output pattern) as a base point. Specifically, “scale”, “bounce”, “clasp” and the like are used.

The numerical value table T3 is a table in which, for each character, a numerical value (parameter value) necessary for specifically drawing using the parameters of the structural description of the “image” constituting the character is registered. Specifically, the definition points (p1, p2, p
The parameter value of 3) is the coordinate of the position, and the parameter value of thickness (w1, w2,...) Is the number of pixels from the skeleton to the outline. The parameter value of the defined point in the detail pattern table T2d is the amount of change (Δx, Δy) from the base point. However,
These are just examples.

Next, for the kanji “matsu” cited as an example in FIG.
The table reference and drawing will be described.

As is clear from FIG. 2, in the case of "matsu", the character table T1
A pointer indicating the storage location of the information near the “tree” bias and “public” in the “nearby” table T2a and a pointer indicating the storage location of the parameter value group for “pine” in the numerical value table T3 are registered in Have been. The “horizontal”, “vertical”, “left-pay”, and “right-clamp” pointers are read from the “picture” table T2b by the “tree” bias pointer, and each “picture” is used by using this pointer.
Are read from the "image" function table T2c, and the necessary detail pattern parameters are read from the detail pattern table T2d using the pointer read from the table T2c. The parameter group (structural parameter group) read in this way and the parameter value group (specific numerical group) for “pine” read from the numerical value table T3
Is input to the drawing unit 4, and the drawing unit 4 draws a font using the parameter group and the parameter value group. That is, the position of the definition point of the "image" and the thickness of the linear part are determined using the parameter values, and the points are connected by a specified line type to draw an outline, and the outline of the detail pattern is drawn. Fill the inside with dots.

Similarly, in the case of “phase”, “tree”
Each “image” parameter group that constitutes the bias and “eye”,
A parameter value group for “phase” is read from the table memory 2 and input to the drawing unit 4 to draw a font.

Here, the drawing of the outline of the “picture” (horizontal) shown in FIG. 5A will be described. The definition point of this skeleton is the point of the starting point p1 and the ending point p2, and there is only one linear part of the outline. Therefore, the parameter of the thickness w1 is 1. The detail pattern is a start pattern (h1) defined by three points and an end pattern (t1) defined by four points. These points or thicknesses are quantified by assigning corresponding parameter values and the outline is drawn by dot interpolation. Finally, the dots inside the outline are filled, and the font is completed.

In addition, the kanji font digitized by the present invention is:
Affine transformation can be performed for any of character units, "image" units, and detail pattern units, and correction and processing can be performed.

〔The invention's effect〕

As described in detail above, according to the present invention, the amount of data of a kanji font can be reduced, the amount of memory for storing the kanji font, and the amount of data processing for generation and processing can be reduced. It is possible to obtain effects such that the design (generation) and correction of the kanji font can be performed easily, freely and efficiently by making the details independent of each other.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic block diagram showing a functional configuration of an embodiment of the present invention, FIG. 2 is an explanatory diagram showing a table structure and a reference state thereof, and FIG. FIG. 4 is an explanatory diagram of the details of the function table, FIG. 4 is an explanatory diagram of the details of the detail pattern table, and FIG. 5 is an explanatory diagram of the “picture” outline. 1 ... input unit, 2 ... table memory, 3 ... table reference unit, 4 ... drawing unit, 5 ... output unit, T1 ... character table, T2 ... structure table, T2a ... "uneven" table , T2b… “image” table, T2c… function table, T2d… detail pattern table, T3… numerical value table.

Claims (2)

(57) [Claims] 1. A method of converting a kanji font into data as a set of outlines of "pictures" constituting the same, comprising: a structural description parameter group of a single stroke corresponding to a skeleton of the "picture"outline; ,
A structure table in which the structure of an “image” outline is represented by a group of detailed pattern structure description parameters such as a knot pattern and a terminal pattern, and a parameter group describing the outline structure of the “image” is hierarchically registered; For each character, a numerical table in which specific numerical groups for rendering the structural description parameter group of the "image" outline constituting the numerical table are registered, and for each character, the structural table and pointers to the numerical tables are registered. And a character table. 2. The structure table comprises a "proximal" table, an "image" table, an "image" function table and a detail pattern table.
The function table shows the number of points that need to be defined, such as the starting point, bending point, and ending point of a single-line stroke,
It is a table in which the individuality of the thickness that needs to be defined and a pointer to the detail pattern table are registered, and the detail pattern table is a table in which the number of points that require the definition of the detail pattern and the number of the base point are registered. And the "drawing"
The table is a table in which pointers to the “picture” table are registered for each of the “partial” or “side” pictures, and the “partial” table is for registering a pointer to the “picture” table for each of the “partial” or “side”. 3. The data conversion method for kanji fonts according to claim 1, wherein the data is a table.