JPS62278051A - Character dictionary forming method - Google Patents

Abstract

PURPOSE:To obtain a high quality synthetic character with reduced dictionary capacity, by describing an outline character pattern according to a chain code then shifting said pattern according to a thickness information thereafter filling the gap to thicken the line. CONSTITUTION:A CPU 2 reads out a character code from a data memory 4 and retrieves a character dictionary 5 to obtain a starting point, thickness and a chain code of a corresponding stroke so as to form a synthetic character. The formed synthetic character pattern is outputted through a font memory 6 to an output device 7 such as a display, a printer, etc. An outline pattern of the stroke is described according to the chain code then in a thickness processing a shifting quantity of the outline pattern is determined base upon a thickness information so as to fill up with black picture elements by that shifting quantity. Then a pointer of chain code is stepped on and same processing is repeated untill an end mark is detected. Accordingly a thickness materix is not required, and the capacity of dictionary can be reduced.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Technical Field] The present invention relates to a method of creating composite characters using a stroke method.

[Prior art]

Conventionally, creating composite characters using the stroke method indexes a character dictionary that stores the stroke start point, thickness, chain code, etc. of a character, and then uses the obtained thickness,
This is achieved by selecting a thickness matrix that matches the chain code from the matrix dictionary and applying thick line processing.In addition to the character dictionary that stores the chain code, etc.
Requires a matrix dictionary to store the thickness matrix,
There was a problem that the dictionary capacity was enormous.

〔the purpose〕

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art and to obtain high-quality composite characters with a small dictionary capacity when creating composite characters using the stroke method.

〔composition〕

When creating a composite character using the stroke method, the present invention draws a bone character (skeletal pattern) using a chain code, then shifts and thickens the bone character according to thickness information, and creates a thickness matrix. This eliminates the need for a matrix dictionary to be stored.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a block diagram of one embodiment of the invention.

In FIG. 1, a character code is input from an input device 1 such as a keyboard, and is sent to a data memory (RA) via a CPU 2.
M) stored in 4. On the other hand, in the one-character dictionary 5, one character is one stroke, and the stroke start point, stroke thickness, and chain code are stored together. CPU2 is
Read the character code from the data memory 4 and read the character code from the character dictionary 5
is indexed, the stroke start point, thickness, and chain code corresponding to the character code are obtained, and a composite character is created.

The created composite character pattern is outputted via the font memory 6 to an output device 7 such as a display or a printer. A series of processes in Cr'U2 are accomplished under the control of a program stored in program memory 3.

Figure 2 is a diagram explaining the structure of the letter 5.
b) Kana character [for J, as shown in the same figure (b),
The starting point, thickness, chain code, etc. are stored together in the character dictionary 5. The chain cord is the core wire of the stroke (
For example, 0 as shown in the same figure (c).
It is described with a direction code of ~7.

Next, the processing procedure for creating composite characters according to the present invention will be explained in detail according to the flowchart shown in FIG.

First, the character dictionary 5 is indexed to read out the starting point, thickness, and chain code of the stroke corresponding to the Kuga character code (step 101), and the first starting point S and thickness F are set (step 102). ). Next, step 103 determines whether the chain code is an end mark.
), if it is not an end mark, draw a skeletal pattern of the stroke according to the chain code in step 1.
゜4), then perform thickness processing (step 1゜5)
. In the thickness processing, the amount of shift of the skeleton pattern is determined based on the thickness information, and black pixels are filled in by the amount of shift. Next, advance the chaincode pointer (step 106
), the same process is repeated until the end mark is detected = 3-.

FIG. 4 shows a specific example of creating a composite character according to the present invention, where the solid line is a skeleton pattern based on a chain code, and the broken line is a shifted skeleton pattern obtained by shifting the skeleton pattern by a predetermined distance to the right. By filling the space between these two patterns with black pixels, a composite character of a desired thickness can be obtained. Although FIG. 4 shows an example in which the skeleton pattern is uniformly shifted to the right, it may be shifted to the left or down by ]-1 as necessary.

〔effect〕

As is clear from the above description, according to the present invention, the skeleton pattern drawn by the chain code is shifted to obtain the desired thickened character pattern, so there is no need to prepare a thickness matrix, and the dictionary capacity is reduced. It can be reduced. Furthermore, in the present invention, by changing the shift direction, it is possible to synthesize various phono).

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a diagram for explaining the structure of a character dictionary, FIG. 3 is a flowchart for explaining the creation of composite characters according to the present invention, and FIG. 4 is a diagram for explaining the structure of a character dictionary. FIG. 3 is a diagram showing a specific example of creating a composite character according to the present invention. DESCRIPTION OF SYMBOLS 1... Input device, 2... CPU, 3... Program memory, 4... Data memory, 5...
Character dictionary, 6... Font memory, 7... Output device.

Claims (2)

[Claims] (1) In the method of creating composite characters using the stroke method,
Read the stroke start point, thickness, chain code, etc. from the character dictionary, draw a skeletal character pattern according to the chain code, shift the skeletal character pattern according to the thickness information, and fill in the gaps to draw the thick line of the skeletal character pattern. A composite character creation method characterized by achieving . (2) The composite character creation method according to claim 1, wherein the skeleton character pattern is shifted in one direction or in a plurality of directions.