JPH0312697A - Character drawing device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a drawing device having an outline font expressed by contour line data, and is particularly suitable for preventing thinning of line width when drawing half-width characters. The present invention relates to a character drawing device.

[Conventional technology]

The conventional technology will be explained below. FIG. 5 is a block diagram of a drawing device in the prior art. 51 is a CPU that controls the drawing device; 52 is an input device that inputs characters; and 53 is a buffer memory that stores character data input by the input device 52.

54 is an outline font memory that stores contour line data for outline fonts.

55 is a drawing means, and 56 is a display device such as a CRT.

57 is an output device such as a printer, and the drawing means 55 reads character data (character code, character size, character attributes, etc.) stored in the buffer memory 53, and outputs the corresponding outline font data to the outline font memory 54. The image data is read out from the computer and drawn on the display device 56 or output device 57. Also, 58 is C
This is a program memory for controlling the PU51.

Next, the operation of the drawing means 55 will be explained with reference to FIG.
horizontal direction). In step 63, font data corresponding to the character data is read from the outline font memory 54. In step 64, it is checked whether the characters to be drawn are full-width characters or half-width characters. If half-width characters are designated, in step 65, the horizontal character size calculated in step 62 is halved. In step 66, the display device 56. Or draw on the output device 57.

In this way, when drawing half-width characters, simply reducing the horizontal character size by half is not a problem for normal kanji, but for alphanumeric characters, symbols, etc., the width of the letter area is small, so it is necessary to reduce the horizontal character size by half. There is a tendency for the letters to be spaced apart and the lines to be thin and thin.

[Problem to be solved by the invention]

In the above conventional technology, when drawing half-width characters, the character size in the horizontal direction is simply halved, so there is no consideration given to the quality of half-width characters, and there is too much space between half-width characters, There was a problem of deterioration of character quality due to thin lines.

An object of the present invention is to improve the quality of half-width characters when drawing them.

[Means to solve the problem]

The above object is achieved by adding letter area width data for each character to the outline font data, determining the half-width character reduction ratio of each character using the data, and drawing the character.

[Effect]

The letter area width is stored for each character in the outline font data. Since the letter area width is used to calculate the reduction ratio that can be drawn within the horizontal character size of a half-width character, there is no malfunction.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. FIG. 1 is a block diagram of a drawing device in this embodiment. 1 is the CPU, 2 is the input device, 3 is the buffer memory,
6 is a display device, 7 is an output device, and 8 is a program memory, and since these functions are the same as those of the prior art, details will be omitted. An outline font memory 4 stores outline font data, and the outline data stores outline data and the letter area width of each character. 4 is a drawing means.

In addition to the functions described in the prior art, when drawing half-width characters, the reduction ratio is calculated from the letter area width in the outline font memory 4, and the letter area width for half-width characters is determined. Alternatively, the image may be drawn on the output device 7.

Next, the operation of the present invention will be explained with reference to FIG. Steps 11 to 14 are the same as in the prior art and will therefore be omitted.

If half-width character drawing is specified in step 14, step 15
In step 16, the letter area width of the outline font data is taken in, and in step 16, the percentage of the font body area width that the letter area width corresponds to is calculated, and the reduction ratio is determined from that value. In this embodiment, in order to improve the processing speed, a table of letter area width ratios and reduction ratios is created and processed as follows.

60% or less 75% 90%61-70%
70% 98%71~80%
60% 96%81~100% 5
0% 100% Next, in step 17, the reduction ratio obtained above is multiplied by the full-width horizontal character size to calculate the half-width horizontal character size. Drawing is performed in step 18 based on the character size determined above.

FIG. 3 shows the relationship between the body area and letter area of the font, and FIG. 4 shows an example of this embodiment.

Also, the letter area width data is in this example.

Although it is stored in the outline font memory 6,
You can create a separate letter area width data table,
A similar effect can be obtained by inputting from the input device 2.

As described above, by calculating the reduction rate using the letter area width data of each character and determining the horizontal character size when drawing half-width characters, the letter area width is larger than when the horizontal direction is set to 172. This improves problems such as too much space between characters and thin lines.

〔Effect of the invention〕

As described in the embodiments above, according to the present invention, by calculating the reduction rate using the letter area width of the font, the horizontal character size when drawing half-width characters is reduced to 1/2 the size of full-width characters in the conventional technology. This makes it possible to increase the size of half-width characters, which improves quality by eliminating too much space between characters and thin lines when drawing half-width characters.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2 is a flowchart showing the operation, Fig. 3 is an explanatory diagram showing the relationship between the body area and letter area, and Fig. 4 is a diagram showing an example of the embodiment. , FIG. 5 is a block diagram of the prior art, and FIG. 6 is a flowchart showing the operation. 1.51...CPU, 2.52...Input device, 3゜53...Buffer memory, 4...Outline font memory (with letter area width data), 54...
Outline font memory, 5, 55... drawing means, 6.56... display device, 7, 57... output device,
8゜Figure 2 Figure 3 Figure 6

Claims (1)

[Claims] 1. It has an outline font expressed by contour line data, and has the same character with a normal character width (hereinafter referred to as a full-width character) and a character with approximately half the normal character width (hereinafter referred to as a half-width character). ) If a half-width character is specified when drawing an outline font on a drawing device that has a function that allows both to be specified, the reduction rate is calculated according to the letter area width for each character stored in the outline font data, and the half-width character is A character drawing device characterized by drawing characters. 2. When a half-width character is specified when drawing an outline font, the reduction ratio is calculated according to the letter area width in the letter area width table and the half-width character is drawn. character drawing device.