JPH0392897A - Pattern generating device - Google Patents

Abstract

PURPOSE:To adjust the line width of a character pattern while the beauty of characters is given top priority by providing a line interval adjusting device which adjusts a line interval limited by a line interval storage device for a character pattern after line width correction so that superior visibility is obtained. CONSTITUTION:The pattern generating device is provided with the line interval storage device 11 which secures visibility at a minimum corresponding to the resolution of an output device and the line interval adjusting device 12 which adjusts the line interval limited by the line interval storage device 11 for the character pattern after the line width correction so that the visibility is superior. The line interval storage device 11 receives a line width correcting value signal C sent out of a correcting value storage device 3 as a correcting value signal Co with line width through an adding and subtracting device 4 and collates it with values in a possessed table to send a line interval adjusting signal D to the line interval adjusting device 12. Thus, the minimum line interval is secured. Consequently, the line width can be adjusted while the beauty of characters is given top priority.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a pattern generation device, and particularly to a pattern generation device for characters, symbols, etc., using a stroke method or a stroke/dot method, which is mainly used in computer phototypesetting devices, etc. .

[Conventional technology]

Conventionally, the stroke method or stroke/dot method of this type of pattern generator stores the contours of individual patterns such as characters and symbols in a closed bag shape approximated by strokes. It is used by outputting to an output device.

Hereinafter, such a pattern generating device will be explained with reference to the drawings.

FIG. 4 is a book diagram showing a conventional example of a stroke/dot pattern generation device used in computer phototypesetting devices, etc.;
FIGS. 3(a) and 3(b) are diagrams showing character patterns stored in the conventional storage device 1 of FIG. 4, respectively.

The storage device 1 approximates the outline of the pattern shown in FIGS. 3(a) and 3(b) with a stroke having the required length and the direction indicated by the arrow 2, I remember the character batami of the content drawn in the state,
When a character signal A is given, a character pattern signal A corresponding to one character signal A is generated. Output k.

The arithmetic device 2 enlarges or reduces the character pattern signal A0 according to the magnification code signal B indicating the magnification and outputs it as a character pattern signal A1. It has a function to divide the vertical and horizontal line widths of the screen at the same magnification, and to adjust a preset value to the vertical or horizontal line width. That is, the magnification code number B is sent from the correction value storage device 3 to the addition/subtraction device 4 as a correction value number C that increments the vertical or horizontal line width according to the respective character size.

The addition/subtraction device 4 transforms the character pattern signal A1 outputted from the arithmetic device 2 by the correction value signal C, and converts the stroke portion into dots in the stroke/dot conversion device 5 as a character pattern signal A2, resulting in a dot-type character pattern signal. A
, through the one-character buffer storage device 6.

The conversion device 7 fills in the inside or outside of the dot-type character pattern signal A inputted from the L-character buffer storage device 6, and outputs it to the output device 8 as a dot-type character pattern signal A4, which becomes a display signal of the display device.

[Problem to be solved by the invention]

The conventional pattern generator described above obtains individual character patterns using the character signal A, magnification code signal B, and line width correction value signal C, and the individual line widths of the character patterns are determined by the line width correction value signal C. Since the entire character pattern is processed uniformly, it has the following drawbacks.

In general, kanji characters are diverse, ranging from simple line elements to complex ones. With conventional phototypesetting devices, which take pictures of characters and output them to an output device through optical processing, it is possible to express subtle line widths at the character capital stage, and even when outputting small characters with an output device, the line spacing can be adjusted. The phenomenon of disappearing did not occur.

In recent years, the stock μ-dot method has become popular, and when expressing characters digitally, the size that can reproduce characters is determined by the output density of the output device (generally expressed in DPI = dots per inch). It is said that there are limits to

For example, when a conventional pattern generator applies line width correction, which is generally said to be beautiful, to all characters, as shown in Fig. 3(a).
A simple character with line elements, such as , can be easily tolerated due to the surrounding margins, but a character with complex line elements, such as the one shown in Figure 3 (b), has very little space between adjacent line elements. The visibility of the characters deteriorates as the characters come into contact with the characters.

In particular, Gothic fonts for Kanji require a wider line width than Mincho fonts, and due to the large number of horizontal lines that are a characteristic of kanji, it was extremely difficult to obtain beautiful characters.

Therefore, the present invention solves the above-mentioned drawbacks and adjusts the line width of character patterns with the beauty of the characters as the first priority by ensuring the minimum line spacing without being limited by the output density of the output device. The purpose is to provide a pattern generator that can

[Means to solve the problem]

The structure of the pattern generator of the present invention reads pattern data written in a stroke method,
In a pattern generator that performs enlargement or reduction processing according to a specified magnification, converts the processed signal into a dot-type pattern signal that represents a pattern in dots, and outputs the signal.
A line spacing storage device that stores line spacing to ensure minimum visibility according to the resolution of the output device, and a line spacing storage device that stores the line spacing that is limited by the line spacing storage device for character patterns that have undergone line convergence correction. The present invention is characterized by having a line spacing adjustment device that adjusts line spacing to create a character pattern with excellent visibility.

〔Example〕

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

FIG. 1 is a block diagram showing one embodiment of the pattern generating device of the present invention, and FIGS. 2(a') and (b') are diagrams showing character patterns processed by the embodiment of FIG.

This embodiment uses the conventional addition/subtraction device 4 shown in FIG.
- a pattern correction device lO between the dot conversion device 5 and the dot conversion device 5;
, so the explanation will be limited to that part.

The pattern correction device 10 includes a line spacing storage device 11 and a line spacing adjustment device 12.

The line spacing storage device 1l stores line elements located parallel to the X direction or the Y direction depending on the output size of the character pattern.
A table contains values that should ensure the minimum distance between line elements that would cause them to come into contact and degrade visibility. This value changes depending on the resolution of the output device and is usually of a small number of types.

For example, 2 bits as shown in Table 1 are allocated.

Table 1 The line spacing storage device l1 receives the line width correction value signal C sent from the correction value storage device 3 via the addition/subtraction device 4 as a correction value signal C0 having a line width. Therefore, it is checked against the values in Table 1 and sent as a line spacing adjustment signal D to the line spacing adjustment device 12.

The line spacing adjustment device 12 receives the adjustment signal D, deletes excess line elements, and sends it to the stroke/dot conversion device 5 as a character pattern signal A 2 ).

Next, the operation of this embodiment will be explained with reference to FIGS. 2 and 3.

(a) and (b) in Fig. 3 are character patterns drawn in a bag shape, and the character pattern with a line width of 3 dots drawn through the addition/subtraction device 4 is (a' in Fig. 2). ) and (b'), respectively. Now, we are going to change the character pattern with this character size to a character pattern with a line width of 4 dots in both the X and Y directions.

The line spacing storage device 1l specifies the minimum visible spacing of 3 dots in both the X and Y directions of this output device. (a'
), which is composed of relatively simple line elements, has an interval of 7 dots in the Y direction, and there is no problem even if the horizontal line width is changed from 3 to 4 dots. In a character pattern with many horizontal line elements like (b'), only 3 dots are secured at intervals.

In this case, if the number is changed from 3 to 4 dots, the line spacing will be 2 dots. Therefore, the line spacing adjustment device sends the character pattern data to the stroke/dot conversion device 5 without incrementing from 3 to 4 dots only in this portion, leaving 3 dots unchanged.

〔Effect of the invention〕

As explained above, the present invention makes it possible to adjust the line width of a character pattern with the beauty of the characters as the top priority, without being limited to character turns with many line elements, by ensuring the minimum line spacing. There is an effect.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the pattern generator of the present invention, FIG. 2 is a diagram showing a character noku turn in which the character noku turn in FIG. 3
FIG. 4 is a diagram showing character patterns stored in a conventional storage device 1, and FIG. 4 is a block diagram showing a conventional example of a stroke-dot pattern generation device used in a computerized phototypesetting device. 1...Storage device, 2...Arithmetic device, 3
. . . Correction value storage device, 4 . . . Addition/subtraction device, 5 . . . Stroke/dot conversion device, 6.
...L-shaped buffer storage device, 7...Conversion device, 8...Output device, 10...Pattern correction device, 11... Line interval storage device, 12
・・・・・・Line spacing adjustment device.

Claims (1)

[Claims] In a pattern generator that reads pattern data written using a stroke method, processes the enlargement or reduction according to a specified magnification, converts the processed data into a dot-type pattern signal that represents the pattern in dots, and outputs it. , a line spacing storage device that stores the line spacing to ensure minimum visibility according to the resolution of the output device, and a line spacing storage device that stores the line spacing that is limited by the line spacing storage device for character patterns that have undergone line width correction. 1. A pattern generation device comprising: a line spacing adjustment device that adjusts line spacing to create a character pattern with excellent visibility.