JP2901002B2 - Stroke character output method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Overview] Regarding an output method of a stroke character represented by a plurality of broken lines, an object of the present invention is to output a stroke character using an output device having no stroke character output function. In a computer that controls an output device that does not have an output function but has a drawing function, in response to an instruction to output a stroke character string, obtains a conversion matrix for the character string based on the attribute data of the output device, and forms the character string. The stroke data of each character to be read is read from a stroke table in the processing unit of the computer, and the stroke data is decomposed into individual broken line data constituting the character,
The individual broken line data is converted into physical coordinates on the output device based on the conversion matrix, and the physical coordinates are output to the output device as line data for executing the drawing function. .

[Industrial applications]

The present invention relates to a data output method in a computer, and more particularly to an output method of a stroke character represented by a plurality of broken lines.

[Conventional technology]

In the computer system, the execution result of the program is output to an output device in the form of characters, numbers, figures, or the like. FIG. 5 shows a block diagram of a configuration example of a conventional computer.
In the figure, the application program 2 is executed by the processing device 1, and the resulting characters, numbers, figures, and the like are output to the output device 4 by the management unit 3.

For example, when outputting a figure or the like obtained in a business such as CAD, the figure order or attribute order inside the order area 5 managed by the management unit 3 is transferred to the output device 4,
Figures and characters are displayed. Here, the figure order is data indicating what kind of figure is to be output, and the attribute order is data such as the thickness and color of a line constituting the figure or the size of a character.

When the application program 2 executed by the processing device 1 can correspond to various output device functions, it is necessary to perform output processing corresponding to the functions of the opened output device 4.

Here, a case where a character string of a stroke character is output to the output device 4 having the stroke character data 6 will be considered.
The stroke character is, for example, a character in which one stroke of a kanji is displayed as a broken line, and the character is expressed as a set of a plurality of broken lines. FIG. 6 shows an example of the expression of a broken line constituting a stroke character. This folding line is composed of a starting point, an ending point, and one folding point, and each point is represented by two-dimensional coordinates X and Y.
Stroke characters represented as a set of broken lines can freely set the number of break points and line length, have a large degree of freedom in the font and size of the characters, and are extremely deformed such as enlarged and reduced characters. It has the feature of being easy.

That is, the coordinates X, Y of the point representing the stroke character are converted to new coordinates X ', Y' using the following matrix.

Here, a ₁₁ , a ₁₂ ,..., B ₁ , b ₂ are constants, and enlargement, reduction, rotation, movement, etc. of the character are performed by appropriately setting those values.

In FIG. 5, when the output device 4 can accept all of the character string attributes for the stroke character string and the character data 6 is stroke character data that can withstand processing in accordance with the character string attribute, the management unit 3 Order area 5
Characters can be output by transferring the internal character string output instruction order and attribute order. Here, the character string attribute is, for example, a character string direction that determines the direction of the character string,
Attributes such as the character spacing that determines the distance between characters and the character direction that transforms the character font, and character data that can withstand processing can be handled by numerical values such as coordinates, as shown by broken lines in FIG. Stroke characters and the like.

As described above, conventionally, stroke characters are output by order transfer from a processing device using an output device having stroke character data inside and having a stroke character output function.

[Problems to be solved by the invention]

However, depending on the model of the output device, there are devices that cannot accept all character string attributes due to economic considerations, and devices that do not have character data that can withstand processing, that is, stroke character data. There is a problem that a stroke character string cannot be output to the device.

An object of the present invention is to provide a stroke character output method capable of outputting a stroke character using an output device having no stroke character output function.

[Means and Actions for Solving the Problems]

The present invention employs a method of outputting each broken line constituting a stroke character from a processing device of a computer as line data in order to output a stroke character to an output device having no stroke character output function.

FIG. 1 is a functional block diagram of the present invention. When there is a stroke character string output instruction, first, at step 7, a conversion matrix for stroke characters is obtained based on the current attribute data of the output device, for example, the line thickness and the character enlargement ratio.

On the other hand, the stroke data of the character string is read from the stroke table which holds the stroke character data in the processing device of the computer by the character code of each character constituting the character string to be output at 8 and then the stroke data is read at 9 Is decomposed into data of individual broken lines constituting each character.

In step 10, using the transformation matrix for the stroke character string obtained in step 7 and the individual line data forming each character obtained in step 9, the break points of the broken lines to be actually output to the output device are obtained. Physical coordinates are calculated.

At 11, the stroke characters are output to the output device in the form of line data using the physical coordinates calculated at 10.

As described above, the stroke character is output as a line constituting the stroke character, and the stroke character can be displayed if there is a drawing line function. If the physical coordinates calculated in step 10 exceed the output range of the output device, a clipping process of cutting the character string in the output range can be performed before the output of step 11.

Furthermore, in executing the program, if the output device does not have a function of responding to a query from the processing device to know the latest attribute data of the output device, an attribute for storing the latest attribute data of the output device The table can also be provided in the processing device.

〔Example〕

FIG. 2 is a block diagram showing a configuration example of a computer for explaining the embodiment of the present invention. 5, unlike the conventional example of FIG. 5, the output device 12 does not have the stroke character data 6, but has a stroke table 17 for holding the stroke character data inside the processing device 13. The management unit 14 also includes a plurality of update tables 19a, 19b,... Corresponding to the attribute table 16 and the order areas 18a, 18b,.・ It has.

The attribute table 16 is for managing the attributes of the output device 12, and holds attribute data of the output device, that is, information such as display color, line type / thickness, and character size. When these attribute data are changed by an order from the processing device 13, the corresponding data in the attribute table 16 is updated, and the latest attribute data is always held.

Each of the order areas 18a, 18b,... Stores a series of orders including various orders such as the attribute order, the graphic order, and the character string output instruction order for outputting a stroke character string. When a series of orders in one order area is transferred to the output device 12, that is, output from the processing device 13, the order from the beginning to the end of the order area is output at one time. Or 1
It is also possible to store a plurality of order groups output at one time in one order area.

As described above, the update table 19a includes the order areas 18a and 19b.
Correspond to 18b,. Each update table includes a term corresponding to each attribute data in the attribute table 16 and the number of character string orders indicating the number of stroke character string output instruction orders in the order area corresponding to the update table. For example, when an attribute order stored in the order area 18a is created, a flag indicating an update and new attribute data are set in the update table 19a for the attribute item updated by the output of the order.

In FIG. 2, the management unit 14 manages the attribute state of the output device 12 when processing the application program 15, and when outputting a character string, reads necessary character data from the stroke table 17, processes it, and outputs it. Output to the device 12.

That is, the management unit 14 has the initial value of the attribute data for the output device 12 having no stroke character display function, and when the output device 12 is opened, the initial value is stored in the attribute table.
Set to 16. Then, when all the orders in a certain order area are output when the application program 15 is executed, the flags for the respective attribute items in the corresponding update table are checked.
The content of the item having the flag indicating the update, that is, the new attribute value is copied to the corresponding item of the attribute table 16, and the attribute table 16 is always kept up to date. For the order of the character string output instruction, the management unit 14 processes the broken lines and line segments constituting the stroke character based on the contents of the attribute table 16 at the time of outputting the order, and outputs the processed lines and lines having the drawing function. The data is output to the device 12 as line data.

FIG. 3 (a) shows a processing procedure of an order of an arbitrary number of character string output instructions included in all the orders in one of the order areas 18a, 18b,..., That is, a stroke character output method of the present invention. , (B) and an example of order contents in the order area of FIG.

By executing the application program 15, for example, the order area 18
When all the orders in a are output, the management unit 14 checks the number of character string orders stored in the update table 19a.
If it is '0', since there is no instruction to output a stroke character in the area 18a, all the orders are output to the output device 12 while keeping the attribute table 16 always up-to-date for the attribute orders in the same manner as described above. Output to

If the number of character string orders is not '0', the attribute table is displayed after all the processes in FIGS. 3 (a) and 3 (b) are completed.
The contents of the update table 19a are copied to 16. First, in step 1 of FIG. 3, all of the character string attributes and line-related attributes are obtained from the attribute table 16 and stored in a character string attribute table (not shown).

In step 2, it is determined based on the number of character strings stored in the update table 19a whether a character string order instructing the output of a character string remains in the output order group. Here, assuming that all the orders shown in FIG. 4 are to be output, there is character string orders e and h.

In step 3, the order is searched in order from the top. If the order is a character string order, step 5 is performed. If the attribute order is related to a character string or a line, step 4 is performed. Step 2
Return to In this case, since the triangle instruction order of the order a is an unrelated order, the process returns to the step 2 and the order search is continued.

Since the next orders b, c, and d are all attribute orders related to character strings and lines, they are stored in the character string attribute table in step 4. Since the order e is a character string order instructing the output of the stroke character “ABCDEFG”, the process proceeds to step S5.

In step 5, the order which has been skipped by the time the character example order e is searched as it is irrelevant to the stroke character output, here the order a, is transferred to the output device 12.

In step 6, an order for changing the attribute of the output device 12 to a line attribute required for stroke character output is created in a stroke order area (not shown). In step 7, a character string to be output, here "ABCDEFG" is transformed. For example, a transformation matrix for enlargement is obtained.

In step 8, it is determined whether or not the processing up to step 12 has been completed for all the characters in the character string to be output.
Here, the process proceeds to step 9, where the stroke data of the first character “A” is obtained from the stroke table 17, that is, the starting point of each broken line or line segment constituting the stroke character.
The coordinate data of the end point and the folding point are read.

In Step 10, it is determined whether or not the processing up to Step 12 has been completed for the data of each point constituting the character 'A'. In Step 11, the point data obtained in Step 9 and the data obtained in Step 7 are obtained. The physical coordinates of the point to be actually output are calculated from the transformation matrix.

In step 12, it is checked whether or not the physical coordinates obtained in step 11 are within the output possible range of the output device 12, and if the physical coordinates are within the range, they are adopted as they are. If it is out of the outputable range, obtain the line segment or broken line data within the outputable range by obtaining the intersection of the line segment or the broken line including the point and the outputable boundary line,
An order for outputting the line segment or the broken line is created in the stroke order area.

When the processing of Steps 10 to 12 for all the line segments and broken lines constituting the first character “A” is completed, Step 8
And the same processing is performed for the second character 'B'.
When the processes from Steps 8 to 12 for the last character 'G' are completed, the process proceeds to Step 13. After the stroke character is created, it is necessary to return the line attribute changed at the time of outputting the stroke character by the order created in step 6 to the original state again. Therefore, in step 13, the attribute order for returning the line attribute to the original state is stored in the stroke order area. create.

In the next step 14, all orders created in the stroke order area up to step 13 are transferred to the output device 12, and stroke characters are output. In step 15, the number of character string orders in the update table 19a is reduced by "1", and the process returns to step 2.

Next, the order f to h in the order area in FIG. 4 is processed in the same manner as described above, and the order necessary to output the stroke character string “Fujitsu Fujitsu Fujitsu” is stored in the stroke order area. It is created and returns to step 2 again.

At this point, the number of character string orders in the update table 19a is "0", and the routine goes to Step 16. Then, in step 16, it is determined whether or not an unprocessed order remains in the target order area, and if it remains, it is transferred in step 17, and if it does not remain as shown in FIG. All processing ends.

As described above, by outputting stroke characters as line data, stroke characters can be output using the drawing function of the output device.

〔The invention's effect〕

As described above, according to the present invention, stroke characters can be output even using an output device that does not have a stroke character output function. Therefore, device independence of an application program is improved and program development efficiency is improved. It has a remarkable effect.

[Brief description of the drawings]

FIG. 1 is a block diagram of the configuration of the present invention, FIG. 2 is a block diagram of a computer configuration example for explaining the embodiment, FIGS. 3 (a) and (b) are flowcharts of the embodiment, and FIG. FIG. 5 is a block diagram of an example of a conventional computer configuration, and FIG. 6 is a diagram showing an expression example of a broken line constituting a stroke character. 1,13 Processing device 2,15 Application program 3,14 Management unit 4,12 Output device 5,18 Order area 16 Attribute table 17 Stroke Table, 19 ... Update table.

Claims (3)

(57) [Claims] A computer for controlling an output device (12) having no stroke character output function but having a drawing line function, wherein the output device (12) outputs a conversion matrix for the stroke character string in response to a stroke character string output instruction. Based on the attribute data of (7), the stroke data of each character constituting the character string is read (8) from the stroke table (17) in the processing unit (13) of the computer, and the stroke data is obtained. Decomposing the data into individual broken line data constituting a character (9), converting the individual broken line data into physical coordinates on the output device (12) based on the conversion matrix (10), and converting the physical coordinates into A stroke character output method, wherein the stroke character is output to the output device (12) as line data for executing the drawing line function. 2. The physical coordinates calculated (10) for the broken line data are output from the output device (12) before the stroke character is output to the output device (12) as line data (11). 2. The stroke character output method according to claim 1, wherein a clipping process for cutting the broken line in the output possible range is performed when the stroke character exceeds the possible range. 3. An attribute table holding the latest attribute data of the output device (12) for an output device (12) having no function of responding to an attribute data inquiry from the processing device (13) of the computer. 3. A stroke character output system according to claim 1, wherein said processing device is provided in said processing device.