JP3616675B2 - Character drawing system - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a character drawing system, and more particularly to a character drawing system including a client device and a server device.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a so-called client / server system configured with a client device 10 and a server device 20 has been provided as a character drawing system. FIG. 8 shows a block diagram of a character drawing system and a window display device 30 that displays characters drawn by the character drawing system.
[0003]
A character drawing system realized by a client / server system normally manages character data to be drawn by either the client device 10 or the server device 20, and the system shown in FIG. It is an example to manage.
[0004]
In FIG. 8, a character pattern data storage device 40 stores character pattern data in which characters are expressed by a collection of dots. The character pattern data memory registration unit 14 reads the character pattern data from the character pattern data storage device 40, generates character image data, and registers it in the memory 16. This registration is performed as one of initial processes.
[0005]
After performing such initial processing, the drawing character information output unit 13 outputs the drawing character information and the image data to the drawing processing unit 22 of the server device 20, thereby performing character drawing. That is, the drawing character information and the image data are generated by referring to the image data stored in the memory 16, the clipping information output from the clip processing unit 12, and the character management information stored in the character management information storage unit 15. The
[0006]
Here, the clip processing unit 12 compares the position where the character is displayed with the position where the clip is applied, and obtains the display portion that needs to be clipped. Here, clipping refers to an operation of excluding a character, a figure, or the like that protrudes outside a preset display area from being displayed. An example will be described with reference to FIG. 4. A portion shaded inside is a display area, and the upper part of the character “F” is displayed and the lower part is not displayed.
[0007]
The character management information storage unit 15 stores character management information including the width and height of the drawing target character, the development position of the character drawing destination, and the like.
Then, the drawing processing unit 22 of the server device 20 copies to a bitmap memory or the like (not shown) included in the window display device 30 based on the notified drawing character information and image data.
[0008]
[Problems to be solved by the invention]
In the conventional character drawing system, drawing character data is managed on the client device side 10 side. For this reason, every time a character is drawn, the image data of the character to be drawn must be output from the client device 10 to the server device 20, which causes a problem that it is difficult to draw the character at high speed.
[0009]
On the other hand, when the drawing character data is managed on the server device 20 side, there is no problem if only a single server device 20 is provided, but usually a plurality of server devices 20 are provided. Depending on the type of character data, some characters may not be drawn in a uniform font. This is a problem particularly in the printing industry and the newspaper industry in which a large number of server devices 20 are installed.
[0010]
The present invention has been made in view of such circumstances, and a first object thereof is to provide a character drawing system that can draw characters at high speed with a uniform font.
[0011]
Another object of the present invention is to provide a character drawing system that can draw characters at high speed with a uniform font and can also perform clip processing of drawn characters.
[0012]
[Means for Solving the Problems]
<< First Character Drawing System of the Present Invention >>
The first character drawing system of the present invention is configured as follows to solve the first problem described above.
[0013]
In other words, the configuration includes the client device 10 and the server device 20 (corresponding to claim 1).
(Client device 10)
The client device 10 includes an initial processing unit 11 and a drawing character information output unit 13.
[0014]
The initial processing unit 11 reads from the character pattern data storage device 40 character pattern data representing a character as a set of dots, and develops character-by-character image data generated based on the read character pattern data.
[0015]
The drawing character information output unit 13 outputs drawing character information including a drawing target character.
The character pattern data storage device 40 may be provided as one function inside the client device 10 or may be provided separately outside the client device 10.
[0016]
The character pattern data storage device 40 includes, for example, a ROM (Read Only Memory), a semiconductor storage device, a magnetic disk storage device, a magnetic tape device, and a CD-ROM (Compact Disc ROM; optical storage device). M / O (Magnet Optical; magneto-optical disk device), I / C card, and the like can be used.
[0017]
Further, the character image data may be generated using the character pattern data as it is, or may be generated by changing the scale. Alternatively, the compressed character pattern data may be generated. Further, it may be generated by combining character pattern data of different characters.
[0018]
(Server device 20)
The server device 20 includes a storage unit 21 and a drawing processing unit 22.
The storage unit 21 stores the image data developed by the initial processing unit 11 of the client device 10.
[0019]
The drawing processing unit 22 reads image data of a drawing target character included in the drawing character information output from the drawing character information output unit 13 of the client device 10 from the storage unit 21, and It transfers to the window display device 30 which displays a character.
[0020]
Here, the window display device 30 displays various information on a window screen such as an X window.
<< Second Character Drawing System of the Present Invention >>
In order to solve the first problem described above, the second character drawing system of the present invention is configured as follows.
[0021]
That is, in the first character drawing system, the initial processing unit 11 of the client device 10 sets the development position setting unit 11A for setting the development position of the image data and the development position set by the development position setting unit 11A. And a development processing unit 11B for instructing to develop the character unit image data (corresponding to claim 2).
[0022]
<< Third Character Drawing System of the Present Invention >>
In order to solve the first problem described above, the third character drawing system of the present invention is configured as follows.
[0023]
In other words, in the first character drawing system, the client device 10 has a character management information storage unit 15 for storing character management information for managing characters to be drawn, and a drawing character information output unit of the client device 10. 13 is configured to output the drawing character information by referring to the character management information stored in the character management information storage unit 15 (corresponding to claim 3).
[0024]
<< Fourth Character Drawing System of the Present Invention >>
The fourth character drawing system of the present invention is configured as follows to solve the second problem described above.
[0025]
That is, in the first character drawing system, the client device 10 compares the drawing position of the drawing target character with the position where the clip is applied, and obtains a clip processing unit 12 that obtains an area where the drawing target character is clipped. And the drawing character information output unit 13 of the client device 10 is configured to output drawing character information with reference to an area where the clip obtained by the clip processing unit 12 is applied (Claim 4). Correspondence).
[0026]
[Action]
In the first character drawing system of the present invention, the initial processing performed by the initial processing unit 11 and the drawing processing performed by the drawing character information output unit 13 are performed.
[0027]
In the initial process, image data in character units is generated based on the character pattern data read from the character pattern data storage device 40. The image data is stored in the storage unit 21 of the server device 20.
[0028]
Next, in the drawing process, the image data of the drawing target character included in the drawing character information output from the drawing character information output unit of the client device is read from the storage unit and transferred to the window display device.
[0029]
According to the second character drawing system of the present invention, in the first character drawing system, the process of the initial processing unit 11 is performed in the following two steps. That is, in the first step, the development position of the character image data is set by the development position setting unit 11A. Next, in the second step, the development processing unit 11B instructs to develop the character image data at the development position set by the development position setting unit 11A.
[0030]
According to the third character drawing system of the present invention, in the first character drawing system, the drawing character information is output with reference to the character management information stored in the character management information storage unit 15.
[0031]
According to the fourth character drawing system of the present invention, in the first character drawing system,
The drawing character information is output with reference to the area where the clip obtained by the clip processing unit 12 is applied.
[0032]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
<< Configuration of Example >>
The present embodiment includes a character drawing system and a window display device that displays characters drawn by the character drawing system. FIG. 2 is a configuration block diagram of the present embodiment. The character drawing system includes a client device 10 and a server device 20 connected to the client device 10 via a communication line (not shown). In FIG. 2, only one client device 10 is shown, but two or more client devices 10 may be provided. Further, only one server device 20 is shown, but two or more server devices can be provided.
[0033]
Hereinafter, internal configurations of the client device 10, the server device 20, and the window display device 30 will be described.
(A) Client device 10
The client device 10 includes a character pattern data storage unit 40, an initial processing unit 11, a clip processing unit 12, a drawing character information output unit 13, and a character management information storage unit 15.
[0034]
Hereinafter, each component will be described.
(A-1) Character pattern data storage unit 40
The character pattern data storage unit 40 stores character pattern data in which characters are expressed as a collection of dots. FIG. 3 shows character pattern data of the character “F”. As shown in the figure, the character pattern data is composed of 16 dots in both the vertical and horizontal directions. For each dot, “1” (the shaded portion in FIG. 3) or “ One value of 0 ”(blank portion in FIG. 3) is assigned. The value assigned to each dot is regarded as binary notation, and character pattern data is configured.
[0035]
The character pattern data storage unit 40 according to the present embodiment is provided as one function within the client device 10, but can also be provided as an external device connected to the client device 10.
[0036]
(A-2) Initial processing unit 11
The initial processing unit 11 includes a development position setting unit 11A and a development processing unit 11B, reads character pattern data from the character pattern data storage unit 40, and generates an image for each character generated based on the read character pattern data. The data is expanded in the bitmap memory unit 21 of the server device 20. In this embodiment, the character image data is generated by using the character pattern data as it is, and therefore, in the following description, the image data is character pattern data.
[0037]
Here, the development position setting unit 11A sets the development position of the character pattern data. The development processing unit 11B develops the character pattern data in the bitmap memory unit 21 based on the development position set by the development position setting unit 11A.
[0038]
In the following description, the storage position is used to mean the development position.
Each character has a unique character width and height. For example, in the case of the character “F”, as shown in FIG. 4, the character width is “13” and the height is “10”.
[0039]
(A-3) Clip processing unit 12
The clip processing unit 12 compares the drawing position of the drawing target character with the position where the clip is applied, and obtains an area where the drawing target character is applied.
[0040]
(A-4) Character management information storage unit 15
The character management information storage unit 15 stores character management information including the storage position of the character pattern data in the bitmap memory unit 21, the character width / height, the drawing position at the character drawing destination, and the like.
[0041]
(A-5) Drawing character information output unit 13
The drawing character information output unit 13 refers to the character management information stored in the character management information storage unit 15 and the region to which the clip obtained by the clip processing unit 12 is applied, and outputs the drawing character information.
[0042]
(B) Server device 20
The server device 20 includes a bitmap memory unit 21 and a drawing processing unit 22.
[0043]
Hereinafter, each component will be described.
(B-1) Bitmap memory unit 21
The bitmap memory unit 21 stores the character pattern data developed from the development processing unit 11B of the client device 10. The entire character corresponding to the character pattern data is not always displayed on the window screen. For example, as shown in FIG. 4, only the upper half of the letter “F” may be displayed.
[0044]
(B-2) Drawing processing unit 22
The drawing processing unit 22 converts the character pattern data stored in the bitmap memory unit 21 based on the drawing character information output from the drawing character information output unit 13 of the client device 10 into the window display device 30 that is a character drawing destination. Are transferred to the image memory 31.
[0045]
(C) Window display device 30
The window display device 30 is a device that displays various information on a window screen such as an X window, and includes a display 32 and an image memory 31.
[0046]
(C-1) Display 32
The display 32 displays a window screen.
(C-2) Image memory 31
The image memory 31 stores data corresponding to the window screen displayed on the display 32.
[0047]
《Character drawing processing concept when clip processing is not performed and when clip processing is performed》
Next, a character drawing processing concept when the clip processing is not performed and a character drawing processing concept when the clip processing is performed will be described.
[0048]
FIG. 5 shows a processing concept of character drawing when clip processing is not performed. When the client device 10 determines that the clip processing is not performed on the drawing target character, the following (1) to (4) are prepared as character management information.
(1) Character pattern data storage position in the bit map memory unit (2) Character width / height (3) Display position (4) Character drawing destination (1) Storage position is the character to be drawn The X-coordinate and the Y-coordinate indicate where the character pattern data corresponding to the character “M” is stored in the bitmap memory unit 21 provided on the server device 20 side. Is.
[0049]
The character width / height of (2) is a character width / height specific to each character to be drawn.
The display position (3) refers to the position of the window screen displayed on the display 32 of the window display device 30 (the part indicated by P in FIG. 5).
[0050]
The drawing position at the character drawing destination (4) refers to the transfer destination position when the character pattern data corresponding to the drawing target character “M” is transferred from the bitmap memory unit 21 to the image memory 31.
[0051]
On the other hand, FIG. 6 shows a processing concept of character drawing when clip processing is performed. When the client device 10 determines that the clip process is to be performed on the drawing target character, the following (1) to (5) are prepared as character management information.
(1) Character pattern data storage position in bitmap memory unit (2) Character width / height (3) Display position (4) Drawing position at character drawing destination (5) Clip information (upper left XY, lower right XY) Coordinate)
(1) to (4) are the same as (1) to (4) when clip processing is not performed.
[0052]
The clip information of (5) is the upper left XY coordinate (portion indicated by Q in FIG. 6) and the lower right XY coordinate (R in FIG. 6) of the rectangular area to be clipped on the window screen displayed on the display 32. The portion shown).
[0053]
<< Operation of Example >>
Next, operation processing according to the embodiment will be described with reference to an operation processing flowchart shown in FIG.
[0054]
First, as an initial process, the development position setting unit 11A sets a development position of the character pattern data for each character on the bitmap memory unit 21 (S701). Further, the development processing unit 11B develops the character pattern data in the bitmap memory unit 21 based on the development position set by the development position setting unit 11A (S702).
[0055]
Next, the clip processing unit 12 determines whether or not to perform clip processing (S703).
If it is determined in step S703 that the clip processing is to be performed, the drawing character information output unit 13 displays the drawing character information generated by referring to the area to be clipped and the character management information stored in the character management information storage unit 15. The data is output to the bitmap memory unit 21 of the server device 20 (S704).
[0056]
On the other hand, when it is determined in S703 that the clip process is not performed, the drawing character information output unit 13 uses the character management information stored with reference to the character management information stored in the character management information storage unit 15 as the server device 20. Are output to the bitmap memory unit 21 (S705).
[0057]
Then, the drawing processing unit 22 transfers character pattern data from the bitmap memory unit 21 to the image memory 31 based on the drawing character information output in S704 and S705 (S706).
[0058]
The display 32 of the window display device 30 displays the drawn characters transferred to the image memory 31 (S707).
[0059]
【The invention's effect】
According to the first to fourth character drawing systems of the present invention, since character image data is transferred from the client device to the server device in advance before character drawing, a plurality of server devices are provided. Even if the models of are different, the uniformity of the fonts of the drawn characters is not lost.
[0060]
According to the first to fourth character drawing systems of the present invention, in order to draw a character, it is only necessary to send drawing character information from the client device side to the server device. Characters can be drawn at a higher speed than when they are sent together.
[0061]
In particular, according to the third character drawing system of the present invention, the character management information stored in the character management information storage unit can be provided with information such as proportionality found in Western characters, thereby enabling beautiful character drawing. It becomes.
[0062]
Further, according to the fourth character drawing system of the present invention, since the clip processing unit obtains the area where the drawing target character is clipped, the clip processing can be performed on the drawn character.
[Brief description of the drawings]
FIG. 1 is a principle block diagram of a character drawing system of the present invention.
FIG. 2 is a configuration block diagram of the embodiment.
FIG. 3 is a diagram illustrating an example of character pattern data in the embodiment.
FIG. 4 is a conceptual diagram of clip processing in the embodiment.
FIG. 5 is a conceptual diagram of character drawing processing when clip processing is not performed in the embodiment.
FIG. 6 is a conceptual diagram of character drawing processing when clip processing is performed in the embodiment.
FIG. 7 is an operational process flowchart of the embodiment.
FIG. 8 is a configuration block diagram of a conventional character drawing system and window display device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Client device 11 ... Initial processing part 11A ... Development position setting part 11B ... Development processing part 12 ... Clip processing part 13 ... Drawing character information output part 14 ... ... Character pattern data memory registration unit 15 ... Memory 20 ... Server device 21 ... Storage unit (bitmap memory unit)
22.... Drawing processing unit 30... Window display device 31... Image memory 40... Character pattern data storage device (character pattern data storage unit)

Claims (4)

Reads in the character pattern data representing the a collection of points characters from the character pattern data storage device, the initial processing unit for developing the image data of the character unit is generated based on the character pattern data read, and the character to be drawn character A client device having a drawing character information output unit for outputting drawing character information including management information ;
A storage unit that stores image data developed by the initial processing unit of the client device, and the image data of a drawing target character based on the drawing character information output from the drawing character information output unit of the client device A character drawing system comprising: a server device having a drawing processing unit that reads out the data from a unit and transfers the drawing target character to a window display device that displays the drawing target character. An initial processing unit of the client device includes a development position setting unit that sets a development position of the image data;
The character drawing system according to claim 1, further comprising: a development processing unit that instructs to develop the image data in character units at the development position set by the development position setting unit. The client device has a character management information storage unit for storing character management information for managing drawing target characters,
The character drawing system according to claim 1, wherein the drawing character information output unit of the client device outputs the drawing character information with reference to character management information stored in the character management information storage unit. The client device has a clip processing unit that compares a drawing position of a drawing target character with a position where the clip is applied, and obtains a region where the drawing target character is clipped,
The character drawing system according to claim 1, wherein the drawing character information output unit of the client device outputs the drawing character information with reference to an area where the clip obtained by the clip processing unit is applied.

Images