JPS61147288A - Character pattern generation display unit - 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 (a) Technical Field The present invention relates to a character pattern generation and display device, and more particularly to a character pattern generation and display device that can generate and display patterns such as characters in a predetermined font based on skeleton information.

(2) Prior art In various recent information processing devices, character patterns such as alphabets and kanji are generated and displayed on the monitor screen. device),
When generating characters, each character is read out as dot information, as seen in a character generator, and this is displayed on the monitor screen. Therefore, when the number of dots per character is small, the quality of the displayed characters is poor, and it is especially difficult to enlarge or reduce the characters to any desired ratio.
Furthermore, the quality of characters usually deteriorates significantly due to enlargement or reduction. Also, when trying to display in many fonts,
It was necessary to store character patterns for each typeface, and the storage device (ROM) required an enormous capacity.

C) Purpose Therefore, the present invention has been made in order to eliminate such conventional drawbacks, and it is possible to display patterns such as characters in any font and any size without degrading the quality. An object of the present invention is to provide a character pattern generation/display device capable of reducing the storage capacity of a memory.

2) Structure of the Invention According to the present invention, in order to achieve this object, character skeleton information is stored with geometric information added to each predetermined stroke or each stroke, and this geometric information is stored in a predetermined typeface. A configuration is adopted in which the characters are displayed in a predetermined font by modulating the strokes or strokes or strokes in sequence.

e) Example The present invention will be described in detail below according to embodiments shown in the drawings.

FIG. 1 shows a schematic configuration of an apparatus of the present invention realized by a computer or the like as a block diagram. In the figure, what is indicated by the reference numeral 1 is the central processing unit M,' (CPU
), and the program memory 3 . Skeletal information (grapheme data) memory 4. Drawing controller 5. A keyboard 6 is connected. The program memory 3 is a memory that stores a program for generating character patterns in a predetermined font, and also includes a work area for the program. Further, the skeleton information memory 4 is a memory that stores skeleton information of each character, that is, glyph data. A drawing controller 5 is connected to a frame memory 7 and performs control to draw the character pattern of the calculated typeface. For example, this controller 5 has the function of drawing straight lines, nine circles, nine arcs, etc., and the function of filling in the areas surrounded by these lines.

On the other hand, the frame memory 7 is a pack memory for displaying on the CRT 8, and has, for example, a memory composed of 640 x 400 pixels and 600 x 400 x 3 dots for displaying eight colors. Also frame memory 7
An output processor 9 is connected between and 0818 and functions to display data read from the frame memory 7 on the CRTB.

FIGS. 2(a) to 2(j) show various character skeleton information and characters drawn in each typeface used in the present invention. As can be seen from Figures 2(b) to (j), the characters of each typeface are shown in Figure 2(a).

It is created based on the skeleton information shown in (f). In any case, as shown in each figure, the characters are composed of strokes or grapheme data of "01" to "07" in the case of "A". The glyph data includes not only ``07'' but also ``OD'' in the case of ``唖'', and the number of glyph primes is increased according to each character to be displayed.

Hereinafter, a method for storing and modulating the skeleton information using the character "A" as an example will be explained.

In FIG. 3, the skeleton information of "A" is displayed along with the code and mechanical information. The code for this character is "01"
to "07", and its geometric information is (10,14), (70,1
4) coordinates are given. (However, the coordinate values are displayed in hexadecimal.) Similarly, for "02", (34, 14).

The coordinates of (64,32) are "04", and for the code "o3", the coordinates of (34,14) and (34,78) are "04".
For the code of (34°78), (IC, 32), tr05. , + for (64,'32), (I
C, 32), and for the code “06” (3
4,14).

(34,78) and (4C,14), (4C.

78), but for the code “01” (10,
78) and (70, 78) are given as coordinates, respectively.

The state in which such codes and geometric information are stored in memory is illustrated in FIG.
, 4), the state in which the coordinates of (X19.Yl,) are used as geometric information is stored for each glyph element.

On the other hand, in FIG. 5, the state of modulation according to each font for the glyphs of each code is shown in the form of a table. The modulation states of the glyphs are illustrated for each code in the order of round Gothic typeface, square Gothic typeface, and Mincho typeface 1st floor typeface from the left.

For example, the code "07" is shown in the blank area in the same figure.
Since the round Gothic font is the same as the round Gothic font of the code "01", only the modulation code M101 is shown and the font is omitted.

Next, the operation of the apparatus of the present invention configured as described above will be explained with reference to flowcharts.

FIG. 6 shows the flow of control for each stroke, and parameters are set from step Sl to step S6. That is, the position (PX) of the character drawn on the screen of the CRT 8 in step S1.

PY). Subsequently, in step S2, the character size, that is, the horizontal and vertical lengths (sx, sy) are specified. Further, in step S3, the width (TX, TY) of the character in the horizontal and vertical directions is specified. Further, in step S4, the character color CC is specified, in step S5 the character font FT is specified, and in step S6 the character CH to be drawn is specified.

In step S7, the glyme data (skeletal information) of the designated character is read out from the glyme data memory 4 (shown in FIG. 4) to the work area. Next, in step S8, the pattern generation program 3 that draws the designated font is selected.

In the following step S9, data for each stroke is read out from the glyph data of the character. That is, (in the case of "A") data "07" (geometric information, ie, coordinates) is read from rolJ. Subsequently, in step SIO, one stroke data is converted into absolute coordinate values on the screen according to the information set in step 51-33, and that one stroke is modulated in accordance with the font specified in step S8. For example, the situation when modulating "Ol" in a round Gothic font is illustrated in FIG. 7(a), and the skeleton information memory 4
Coordinates (X+
, Yl ), (X2 , Y2) to (Xu , Y
u) and (X22. Y22) respectively, and for example, in a basic language, use the LINE instruction or C
A stroke pattern as shown in FIG. 7(a) is drawn using the IRCLE command (step 511). In the following step S12, it is determined whether one character has been written, and if it has not been written, the process returns to step YS9 and the next stroke is written.
02" is read out. Similarly to "Ol", (X24.Y24) is calculated from ni (xl, , y, 1) according to the specified font according to the specified font, and "02" is obtained. ” stroke pattern is drawn. Similarly, "03" to "07" are each drawn, and one character is drawn. This state is illustrated in FIG. 2(b).

Next, in step 313, it is determined whether or not to draw the next character. If the next character is to be drawn, the process returns to step S1, and if the next character is to be drawn, the program is terminated.

In the case of the round Gothic typeface explained above, it is relatively easy to modulate the glyphs, but for example, when specifying a patterned typeface, r
The modulation of oll is relatively complicated as shown in FIG. 7(C). However, as shown in the table of FIG. 5, each code can be arbitrarily modulated according to a designated font.

In other words, FIGS. 7(d) to (g) show examples of modulation of the skeleton information of "01" (MIOI to M401) in round Gothic typeface, square Gothic typeface, Mincho typeface, and block typeface.
h) to (k) are examples of modulation of skeleton information of "04"(M'1
04 to M404) are illustrated, and it can be understood that the coordinate points are calculated according to each typeface.

In the embodiments described above, character patterns are displayed using a stroke method, but FIGS. 8 and 9 illustrate a method of drawing using a partial and labor method. In this embodiment, the skeleton information of the character is also stored, but in this case, the skeleton information is stored with geometric information attached to each stroke, not every stroke. In other words, as illustrated in Figure 8, the character for ``kon'' is broken down into ``onna'', ``Mr.'', and ``te'', and as illustrated in Figure 8 (b), the character for ``kon'' is broken down into two parts:
coordinates) and deviations.

It is stored with a code rH**J indicating labor.

The generation and display of characters according to this bias and effort formula are illustrated in FIG. Steps Sll to 316 are parameter settings, which are the same as those shown in FIG. In step S1.7, the grapheme data of the specified character (partial, partial,
data) from the grapheme data memory to the work area.

In the following step 318, a pattern generation program that draws the specified font is selected. In step S19, data is read out from the glyph data on a partial or time-by-moment basis.

In the following step S20, the stroke data constituting the read bias or labor data is read out in accordance with the designation of the read bias or labor data. In the following step S21, the digit 1 δ and the size within the character coordinates of the bias specified in the labor data are calculated. This is further converted into the absolute coordinate system of screen-1- according to the parameter settings. In step S22, draw the character pattern of that bias or depth, and in step S23. Step S24
Repeat the above steps until you have drawn all the lines or strokes for that letter, and have finished drawing one letter. Subsequently, in step S25, it is determined whether or not to draw the next character. If you want to draw, return to the beginning, and if you want to finish, exit the program.

In this bias/effort formula, each character is decomposed into bias/division, and memory access is performed for each bias/division, so it is possible to improve the data compression rate of the memory. For example, for characters that include a "female" bias, the bias data is first read from the memory address that stores the "female" bias, and then that bias is drawn according to the stroke method, so each character is converted into a stroke. Rather than disassembling and storing all character information, data can be stored in a more compressed manner if it is disassembled into parts and stored. Similarly, character data can be further compressed by storing strokes that are grouped together as a single stroke rather than separating them into individual strokes.

In addition, in the stroke method and bias/labor method described in -, only coordinates were used as geometric information, but it is also possible to use the direction and length of one point as coordinates as geometric information. good.

f) Effects As explained above, according to the present invention, not dot information but skeletal information is stored with geometric information attached, and it is modulated according to a predetermined font. Various effects can be obtained.

a) From a small amount of character pattern information (skeletal information), high-quality characters can be drawn in various fonts based on common glyph data. Therefore, the data compression rate is enormous.

b) It is possible to enlarge or reduce in very small increments, and in the process, the quality of characters is always maintained at the pixel density of the frame memory for display. Even when enlarged, the aliases (jaggies) do not get larger like dot characters.

C) Even for characters of the same size, the thickness of the strokes can be specified arbitrarily in the vertical and horizontal directions, allowing for greater variation in character design.

d) Coordinate conversion processing can be performed when drawing characters, so the drawing can be modified by rotating the characters or making them fan-shaped vertically and horizontally.

e) Character patterns can be given a three-dimensional effect by adding shadows to the characters.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the schematic configuration of the device of the present invention, Figs. 2 (a) to (j) are explanatory diagrams explaining skeleton information and display of characters in each typeface, and Fig. 3 is a diagram showing the graphemes of characters. An explanatory diagram explaining the data, Figure 4 is an explanatory diagram explaining the state in which skeleton information is stored in memory, Figure 5 is a table diagram showing the modulation of each typeface by the stroke method, and Figure 6 is a stroke method. FIG. 7 (a) is a flowchart showing the flow of control according to
) to (k) are explanatory diagrams explaining the modulation of grapheme data, No. 8
Figures (a) and (b) are explanatory diagrams illustrating data formats based on the bias and dominance methods, and FIG. 9 is a flowchart illustrating the flow of control based on the bias and effort formats. 1...CPU 3...Program memory for character pattern generation 4...
Skeleton information memory for character pattern generation 5...Drawing controller 6...Keyboard 7...Frame memory 8
...CRT9...Output processor Fig. 3 (10,78) (34,78) (4C,7
8) (70,78) Figure 4 area

Claims (1)

[Scope of Claims] 1) means for storing character skeleton information with geometric information appended to each predetermined stroke; means for modulating the geometric information of each stroke of the skeleton information in accordance with a predetermined typeface; 1. A character pattern generation and display device comprising: means for sequentially displaying strokes of characters, and displaying said characters in a predetermined font. 2) The character pattern generation and display device according to claim 1, wherein the typeface is a round Gothic typeface, a square Gothic typeface, a Mincho typeface, a block typeface, a reisho typeface, or the like. 3) means for storing skeletal information of a character with geometric information added to each font; means for modulating the geometric information of the skeletal information and font according to a predetermined font; 1. A character pattern generation and display device comprising means for sequentially displaying 旁 and displaying the characters in a predetermined font. 4) The character pattern generation and display device according to claim 3, wherein the typeface is a round Gothic typeface, a square Gothic typeface, a Mincho typeface, a block typeface, a Tenji typeface, a Reisho typeface, or the like.