CN103186507A - Dot matrix font library processing method - Google Patents

Abstract

The invention provides a dot matrix font library processing method which is suitable for a dot-matrix display screen. The dot matrix font library processing method comprises the following steps: step one, generating a standard dot matrix font library; and step two, adjusting each dot matrix character according to the order of dot matrix characters in the standard dot matrix font. Step two comprises the following sub-steps: extracting corresponding font date of the dot matrix character; adjusting the height and width of the data of the extracted character according to the size of the dot matrix display screen so as to generate font date with adjusted height and width; adjusting the modular mode of the font date with adjusted height and width according to the modular requirement of the dot-matrix display screen so as to generate font data with adjusted modular mode; storing the font data with adjusted modular mode according to the character reading and displaying order of the dot-matrix display screen; and generating a target font library after each dot matrix character being adjusted. The dot matrix font library processing method is applicable to various dot matrix font libraries, can be used for various embedded systems and terminal devices, and can provide a good man-machine interaction interface.

Description

Dot matrix font processing method

technical field

The invention relates to a dot matrix font processing method, in particular to a dot matrix font processing method which can process a dot matrix font of a standard size into a target font meeting the requirements according to the requirements of different dot matrix display screens for display data.

Background technique

The dot matrix font library is a data file in which the dot matrix data of all characters are stored. The font data of the characters stored in the dot matrix font, for the 16*16 dot matrix Chinese character font, each Chinese character occupies 32 bytes, a total of 16 lines from top to bottom, each line has two bytes and a total of 16 bits. The font data storage of dot-matrix Chinese characters is very standardized, and it is divided into two types: horizontal modulus and vertical modulus: horizontal modulo is based on row units, and font data is stored in order from left to right and from top to bottom; vertical modulo is The font data is stored in the order of the first 8 rows from top to bottom and from left to right, and the last 8 rows from top to bottom and from left to right in units of columns.

With the continuous development of embedded technology, the user's demand for embedded products is increasing day by day, and the interface display effect of the product can directly affect the user's choice of the product. At present, for domestic users, most LCD screens use 16*16 dot-matrix Chinese character fonts. Because the displayed character spacing and line spacing are very small, the display effect is relatively crowded and not beautiful enough. The common method is to pass Chinese characters through relevant The algorithm compresses to 14*14 size. Although the appropriate spacing can be guaranteed after compression, the compressed Chinese characters themselves will become unattractive due to deformation. There are also some font processing chips on the market now, which can achieve good results after use, but also increase the hardware cost. If the dot matrix font library is developed by itself, it will cost a lot of manpower and time, and the gain outweighs the gain. Therefore, it is extremely critical to be able to develop a font with beautiful fonts and a suitable size on the basis of the standard dot matrix font.

Contents of the invention

In view of the above reasons, the purpose of the present invention is to provide a dot matrix font processing method that can process a dot matrix font of a standard size into a target font that meets the requirements according to the requirements of different dot matrix display screens for display data.

To achieve the above object, the present invention adopts the following technical solutions:

A dot-matrix font processing method, suitable for dot-matrix display screens, is characterized in that the method comprises the following steps:

1) Generate a standard dot matrix font library;

2) According to the order of the dot matrix characters in the standard dot matrix font library, each dot matrix character is processed, specifically:

21) For the processed dot matrix text, extract the font data corresponding to the dot matrix text;

22) According to the size requirements of the dot-matrix display screen, adjust the height and width of the extracted character data to generate height- and width-adjusted character data;

23) According to the modulo-taking requirements of the dot matrix display screen, adjust the modulo-taking mode of the font data adjusted through height and width, and generate the modulo-taking mode adjusted through the modulo-taking mode;

24) According to the order in which the display text is read by the dot matrix display screen, the font data adjusted by the modulus mode is stored;

3) After each dot-matrix character in the standard dot-matrix font is processed, the target font is generated.

The standard dot matrix font is a dot matrix font encoded based on the GB2312-80 standard.

The dot matrix display is an LCD display.

The advantages of the present invention are:

1. It can effectively adjust the overall display effect of the text. Compared with the compression method, the text display effect is more beautiful.

2. It is suitable for various dot matrix fonts, and can be used in various embedded systems and terminal devices, and can provide a good human-computer interaction interface.

Description of drawings

Fig. 1 is the processing flowchart of the present invention;

Fig. 2 is a display effect diagram after being processed by the present invention in an embodiment.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

The dot matrix font processing method provided by the present invention is suitable for dot matrix display screens, and the dot matrix display screens can be LCD display screens, LED display screens and other display screens with a dot matrix structure; Array English fonts, dot matrix Japanese and Korean fonts, etc., are just examples and are not limited thereto.

The technical solution of the present invention will be described below with an embodiment in which the dot matrix Chinese character library is processed to be suitable for LCD display.

If the requirement of the selected LCD display screen is: 16*12 customized character library, modulus vertically, and display the data of each byte in reverse order, then in order to generate the target font library suitable for this LCD display screen display, the present invention can pass The following steps are implemented:

1) Generate a standard dot matrix font library;

According to the requirements of the selected LCD display, firstly use the dot matrix font generation software to automatically generate a 12*16 standard dot matrix Song style Chinese character font, in which, the font data size of each Chinese character is 24 bytes, and the modulus is taken horizontally module, the standard dot matrix font is a dot matrix font based on GB2312-80 standard encoding.

2) According to the order of the dot matrix characters in the standard dot matrix font library, each dot matrix character is processed, specifically:

21) For the processed dot-matrix characters, extract the font data of the dot-matrix characters;

In this embodiment, first locate the first address of the dot matrix Chinese character data to be processed, and then extract 24 bytes of data from the first address, which is the dot matrix Chinese character data.

22) According to the size requirements of the dot-matrix display screen, adjust the height and width of the extracted character data to generate height- and width-adjusted character data;

In the present embodiment, because each font data of the selected standard dot matrix Chinese character library is 12*16, and each font data required by the selected LCD display screen is 16*12, so the font extracted in step 21) needs to be extracted. The height of the data is increased from 12 to 16, and the width is reduced from 16 to 12 to obtain 16*12 font data.

23) According to the modulo-taking requirements of the dot matrix display screen, adjust the modulo-taking mode of the font data adjusted through height and width, and generate the modulo-taking mode adjusted through the modulo-taking mode;

In the present embodiment, because the modulus mode of the selected standard dot matrix Chinese character library is horizontal modulus, and the modulo mode of the selected LCD display screen is vertical modulo, so the height and width after processing in step 22) need to be The adjusted font data is converted from a horizontal mode to a vertical mode.

24) According to the order in which the display text is read by the dot matrix display screen, the font data adjusted by the modulus mode is stored;

In this embodiment, since the selected LCD display screen displays the data of each byte in reverse order, each byte of the font data adjusted by the modulo mode after processing in step 23) needs to be processed in reverse order first and then processed in reverse order. Store it up.

3) After each dot-matrix character in the standard dot-matrix font is processed, the target font is generated.

After each dot-matrix Chinese character in the selected standard dot-matrix Chinese character library has been converted from step 21) to step 24), a target font suitable for display on the selected LCD screen can be generated.

After the target font library is generated, you can write a test program to test the effect. As shown in Figure 2, the Chinese characters displayed on the selected LCD display have moderate character spacing and line spacing, and the display effect is more beautiful.

The present invention firstly generates a standard dot matrix font, and then according to the requirements of the selected dot matrix display, adjusts the height and width of the font data of each character in the standard dot matrix font, adjusts the mode of taking the model, and adjusts the byte storage order, etc. , after each character in the standard dot-matrix font is adjusted, the target font suitable for the selected dot-matrix display can be generated. The dot matrix font processing method of the present invention is applicable to various standard dot matrix fonts, can be used in various embedded systems and terminal equipment, and can provide a good human-computer interaction interface.

The above are the preferred embodiments of the present invention and the technical principles used therefor. For those skilled in the art, without departing from the spirit and scope of the present invention, any technical solution based on the present invention Obvious changes such as equivalent transformation and simple replacement all fall within the protection scope of the present invention.

Claims (3)

1. a dot matrix word library disposal route is applicable to dot matrix display screen, it is characterized in that, this method may further comprise the steps:

1) generates the standard dot matrix word library;

2) according to the order of dot matrix character in this standard dot matrix word library, each dot matrix character is handled, is specially:

21) dot matrix character that processing is arrived extracts the corresponding character pattern data of this dot matrix character;

22) according to the size requirements of described dot matrix display screen, adjust height and the width of this character pattern data that extracts, generate the character pattern data through height and width adjustment;

23) according to the delivery requirement of described dot matrix display screen, adjust this through the delivery mode of the character pattern data of height and width adjustment, generate the character pattern data of adjusting through the delivery mode;

24) according to the order of described dot matrix display screen reading displayed literal, this character pattern data of adjusting through the delivery mode is stored;

3) after each dot matrix character is all handled in the standard dot matrix word library, generate the target character library.

2. a kind of dot matrix word library disposal route according to claim 1 is characterized in that, described standard dot matrix word library is the dot matrix word library based on the GB2312-80 standard code.

3. a kind of dot matrix word library disposal route according to claim 2 is characterized in that, described dot matrix display screen is LCD display.

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