JPS60231272A - Graphic processing system - Google Patents

Abstract

PURPOSE:To detect graphic coordinates only by a character cursor and to execute graphic processing simply by the movement of the character cursor by making the moved distance of one character by the cursor on a virtual screen correspond to the unit movement of graphic processing to execute graphic processing. CONSTITUTION:When a virtual display mode for setting a virtual screen is set to the size of 16 times a normal display screen 3 in both lateral and longitudinal directions, the lateral movement of 8 characters corresponds to the lateral display of 8X16 characters and the longitudinal movement of 8 characters corresponds to the longitudinal display of 8X16 characters. Consequently, one unit of graphic display can be moved every one movement of the character moving carsor 4 and the graphic coordinates on the whole screen can be extracted in accordance with the movement. A normal screen 5 before the setting of the virtual screen is shifted to the state of the virtual screen 6 and the cursor 4 is set on a slightly upper left position from the center part of the display screen 3. A block corresponding to one character is displayed as a dotted line on the virtual screen 6. The block is a character block 7 displaying the range of one character and a character block 8 positioning the cursor 4 is located on the center of the virtual screen 6.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a graphic processing method, and when creating a screen in an interactive manner using, for example, a CRT display device, only a cursor for characters is used. This invention relates to a graph ink processing method that allows easy graphic processing using .

[Conventional technology]

Input/output devices that perform interactive processing include so-called man-machine interfaces (devices), such as display devices (keyboard + CRT display) that perform interactive input/output, personal computers, various intelligent terminals, input/output typewriters, etc. can be mentioned.

By the way, recently, as one form of information processing, there has been an increasing number of forms in which computers and people interact through man-machine interfaces (devices), and in particular,
This can be said to be indispensable when handling information such as documents, figures, and images.

In general, display devices with interactive processing functions that can perform graphical processing have cursor control functions that support graphic processing, but those that are mainly used for document processing or low-priced devices Some devices do not have a cursor function that supports such graphic processing.

Generally, when performing graphic processing on such a display device, a cursor pattern is created using software, displayed, and moved, or a cursor pattern is created using software, and a predetermined pattern is selected from among predetermined patterns created using hardware. Graph ink processing is performed by selecting patterns and combining them.

[Problem that the invention seeks to solve]

In this way, when creating a cursor pattern using software, displaying it, and moving it to perform graph ink processing, the process is not only troublesome, but also because the cursor is moved one dot at a time. The problem is that it takes time.

In addition, in cases where a predetermined pattern is selected from predetermined patterns created in hardware and these are combined, the selection of this pattern is troublesome, and it is limited to the predetermined pattern. This is graphic processing. the result,
The drawback is that you cannot draw the fine line drawings you want.

[Purpose of the invention]

The purpose of the present invention has been made in view of the problems and drawbacks of the prior art. To provide a graph ink processing method that can detect coordinates and easily perform graph ink processing by moving a cursor for characters.

[Means for solving problems]

This invention provides a virtual display mode, sets a virtual screen enlarged to a predetermined size, and considers the movement of one character in normal character control or an integral multiple of this amount of movement as one dot on this virtual screen. The idea is to deal with it.

Therefore, the feature of the technical means of the present invention for solving the above-mentioned problems and drawbacks is that a virtual screen with an integer multiple of the dot configuration of one character is set, and on this virtual screen, Graphic processing is performed by making the amount of movement of one character by the cursor correspond to the unit movement amount of graph ink processing.

[Effect]

In this way, if you set a virtual screen that is an integer multiple and move one character on this virtual screen, on the virtual screen, this is treated as a movement amount of 1/integer according to the integer multiple. Therefore, the movement of a character cursor on the virtual screen can be made to correspond to the graphic processing of one dot movement on the virtual screen, and its coordinates can be detected.

Therefore, a figure drawn on the virtual screen by moving the cursor for a character can be converted into a graphic ink processing figure as it is, and furthermore, this figure can be reduced to an integer fraction on the screen of the original display device. After processing, you can easily obtain the graph ink-processed figure on the original screen.

As a result, it is now possible to easily process figures by moving the character cursor without having to create and display a special cursor pattern using software, and the drawing of figures is also equivalent to do-no-do units. can.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

Fig. 1 is an external view of a display device to which the graphic processing method of the present invention is applied, Fig. 2 is an explanatory diagram of the dot configuration when a cursor for characters is made to correspond to graphic display, and Fig. 3 is an illustration of the dot configuration. FIG. 4 is an explanatory diagram showing the correspondence of the origin, FIG. 4 is an explanatory diagram of the transition of the graphic processing to the virtual screen, and FIG. 5 is a flowchart of the processing in the arithmetic processing unit. In addition, in each of these figures, the same reference numerals indicate the same things.

In FIG. 1, reference numeral 10 denotes a CRT display device, which includes a display section 1 and a keyboard section 2. As shown in FIG. Here, the display unit 1 is provided with an arithmetic processing unit, a memory (ROM/RAM), an interface, etc., and has a display screen 3. On the other hand, a virtual screen setting key 2a (EXP) is provided on the keyboard section 2 to set a virtual screen enlarged to a predetermined size. Further, 4 is a cursor for a character displayed on the display screen 3.

By the way, in normal cursor control for character movement, if the size of one character is 8 x 16 with dot correspondence as shown in Figure 2, then cursor 4 can be moved horizontally by one character (one digit). Now, when corresponding to the graph ink display, the movement is 8 dots at a time, and when it is vertically moved (one line), the movement is 16 dots.

Therefore, if the movement of the cursor 4 is detected as is, it is not possible to extract the position within 8×16 for one character. Therefore, with graph ink processing, the amount of cursor movement is reduced to 1/8 in the vertical direction. Instead of setting it to 1/16 horizontally, if you enlarge the side of the screen and set a large display screen that is an integer multiple of the dot configuration for one character, you will not need to change the amount of movement of cursor 4. .

By the way, when considering the screen configuration in the character display mode and the screen configuration in the graphic display mode, as shown in FIG. It can be mentioned as a general thing. In contrast, the graph ink display mode generally has 640 dots horizontally and 40 dots vertically.
0 dot is assigned. In addition, in the character display mode, the display process is performed using a coordinate system S whose origin is located at the topmost position 3a on the left end of the display screen 3, and in the graph ink display mode, the origin is located on the display screen 3.
The display process is performed using a coordinate system G with the leftmost bottom position 3b.

Therefore, in this embodiment, corresponding to the example shown in FIG. 3, a case will be explained in which the virtual display mode in which the virtual screen is set is set to, for example, 16 times the size of the normal display screen 3 in the vertical and horizontal directions. However, the magnification is not limited to this magnification.

On such a virtual screen, 8 characters can be moved horizontally by 8 characters.
Corresponds to the horizontal display of 1 character of ×16, and 1 character vertically.
Movement of 6 characters corresponds to displaying one 8×16 character in the vertical direction. As a result, each time the character movement cursor 4 is moved one unit, the graph ink display can be moved by one unit, and the graph ink coordinates within the entire screen can be extracted along with the movement.

FIG. 4 shows the relationship between the normal screen 5 set on the display screen 3 in this case and the virtual screen 6 set.

Here, if the virtual screen setting key 2a of the keyboard section 2 is pressed in order to shift to the graph ink display mode, a keyboard interrupt process is performed, and a predetermined magnification, in this case, both vertically and horizontally relative to the normal screen 5, is pressed. Processing is performed to set the virtual screen at a magnification of 16x.

In this case, as shown in FIG. 4, the normal screen 5 before setting the virtual screen shifts to the virtual screen 6, and the cursor 4 is set slightly to the upper left of the center of the display screen 3. Ru. Here, on the virtual screen 6, a block corresponding to one character is displayed as a dotted line. The displayed block indicated by the dotted line is a character block 7 that displays a range of one character, and the character block 7 on which the cursor 4 is positioned is located at the center of the character block 7.

Next, the relationship between this virtual screen 6 and the normal screen 5 will be explained.

The enlarged virtual screen 6 displays a part of the set virtual screen, and the coordinates on this set virtual screen (also on the virtual screen 6) are set as X and Y, and the normal screen 5 Assuming that the coordinates of the character position above are x and y, these relationships can be expressed by the following relational expression.

X = 8 X X −−−−−−−−−−−−−−+
1) Y= 16 x (25-y) -1-------
-----(21 Here, as shown in FIG. 3, the coordinate position of the origin coordinate position 3a on the normal screen 5 is x=o, y
= 0, the origin position 3b in the case of graph ink display is set at the lower left corner of the set virtual screen, and its coordinate positions are set as x=o, y=o.

In other words, when compared to FIG. 3, the normal screen 5 is horizontally 8
Assuming 0 column and 25 vertical lines, its coordinates are its origin position 3a
From (0, 0) to (79, 24) with reference to . On the other hand, the set virtual screen is 640 dots horizontally and 4 dots vertically.
00 dot, its coordinates are from (0°0) to (639, 399) with its origin position H3b as a reference.

Now, the horizontal coordinate X, which is the current coordinate position in the character display, has moved by 8XX on the enlarged virtual screen, and the vertical direction y, which is the current coordinate position in the character display, has moved from the origin to the maximum. In the virtual screen enlarged from the bottom edge, the origin position is 3 at (25-y).
Convert to coordinates based on b and multiply by 16,
-1 to find the Y coordinate position, and as a result,
The position of the cursor 4 at the upper right corner of the character block 7 at the center of the virtual screen 6 in FIG. 4 is calculated using equations (11 and (2)).

By the way, the constant 8.16 in equations (11 and (21) corresponds to the size of the cursor 4 on the normal screen 5 projected onto the virtual screen 6. A crease 8 shown by a thin line in the central character block 7 shown by a dotted line above 6 is provided to explain the relationship between these characters as a character range corresponding to one character and one dot on a virtual screen.

However, since the horizontal direction is 16 times the display screen 3 and the display of one character is 8 x 16,
Two scales will be assigned to the dot.

Here, by calculating the X and Y coordinates using the previous coordinates (11 and (21), it is possible to calculate the address (coordinate position) at which the cursor 4 is located in the graphic coordinate system.

By the way, on the virtual screen 6, only a part of the set virtual screen is displayed, so the origin position on the left bottom position backfunk display on the display screen 3 is converted into coordinates on the partially displayed virtual screen 6. will be the value.

Therefore, each character block 7 is indicated by a dotted line, and the cursor 4 is placed at the character display block position in the center.
If the coordinates on the virtual screen 6 set to the origin (bottom left position) on the display screen 3 when performing graphic processing are XIl, Y+++, the origin position is expressed by the following formula. be able to.

Xl1=X −16−−−−−−1・−・・−・
・・・・・・・・(3) Ym = Y −20−−−−
−−−−−−−−−−−(4). Here, the constant 16.20 is the distance to the cursor 4 on the virtual screen 6, Xc.

This corresponds to the YcO value.

Therefore, the origin coordinates (Xm, Ym) of the display screen 3 on the graph ink display on the virtual screen 6 are calculated based on formulas (11, +2), +3), and (4), and are stored in a predetermined storage area. is memorized. The calculated coordinates of the origin position of the display screen 3 of the graph ink display are:
On the normal screen 5 and the virtual screen 6, Xm00. It is displayed as Y=O○ (in the illustrated example, Xm136.Ym320).

Now, the coordinate position on the virtual screen 6 in the graphic processing state is the origin coordinate of this display screen 3 (Xs, Ym
) is calculated using the following formula.

X = Xm + x / 2 + 16 ・---
−−−−−−−−−−+51Y=Ym+20+y −−
−−−１・−・・−−−−１・−−−(61 Here,
x/2 is obtained by performing graph ink display processing by treating the movement of two characters in the horizontal direction as the movement of one dot.

In graph ink processing, this formula +51.
(Based on 61, the coordinate address is calculated according to the movement of the cuttle 4.

As a result, as the cuttlefish 4 moves on the virtual screen 6, its movement locus is sequentially displayed on the virtual screen 6 as predetermined graphic information, and the coordinate values calculated above (
X, Y) will be stored in memory sequentially.

Note that when the cursor 4 moves beyond the area of the current display screen 3 on the virtual screen 6, the screen is l
Each character block 7 is displayed shifted and moved up and down. Then, in accordance with this movement, the newly calculated origin coordinates (XIIl, Ym) of the display screen 3 are also displayed.

When the graphic processing is completed in this way, the virtual screen setting key 2a on the keyboard section 2 is pressed again, and conversion display processing to the normal screen 5 is performed based on the detected coordinate position in the graphic processing. . In other words, the width of the created figure is 16 times (32 times as 8 x 16 dots)
, the graphical information created at 16 times the height is conversely reduced to 1/16 in the height and width, converted to the normal size, and displayed on the normal screen 5. Note that such reduction processing may be performed as necessary, and it is not necessary to provide such a function.

This reduction conversion process is performed based on the relative relationship between the coordinate position in one character block 7 indicated by the dotted line on the virtual screen 6 and the coordinate position obtained during the graph ink process. This is done by program processing by selecting corresponding graphic patterns and combining them.

Therefore, various graph ink patterns required for such display conversion and their conversion programs are stored in the memory of the display device 1 or its ROM.

Next, based on FIG. 5, the flow of processing of the arithmetic processing unit of the display device IO when transitioning to graph ink processing will be described.

First, when the cursor 4 that is displayed on the screen moves in step (2), the coordinates of the movement are read as the address for the character, and the value is set as the variable X.

Set to y. Next, in step (2), as a mode check, it is determined whether the virtual display mode (graph ink processing mode) is selected.

As a result of this determination, if it is determined that the mode is not virtual display mode, the process moves to step ■ as a normal mode.
From the character addresses x and y, calculate the coordinates of cursor 4 in the case of graphic processing using the formula +11. (Calculated by 21. Then, in step 2, the origin position on the graph ink display on the display screen 3 for processing in the virtual mode is calculated by equations (31, (4), and in step 2, the coordinates of this origin are calculated graphically. The coordinate positions in the process are displayed as X-〇〇, Y-〇〇 at the bottom left end of the display screen 3, and the coordinate positions are displayed in a predetermined area set in advance on the memory on the display screen 3 for graph ink processing. Store as the coordinates of the origin.

Next, return to the step, and when the cursor 4 moves on the screen, read the moved coordinates again and set the values to variables x and y. Next, in step ■, Determine the mode and step from step ■ to step■
Perform the processing that leads to.

In such a cyclical processing state, the keyboard section 2
When the upper virtual screen setting key 2a is pressed, keyboard interrupt processing is performed, the processing state shifts from the normal character display mode to the virtual display mode, and the processing shifts to the graph ink processing state. Therefore, in the mode check of step (2), it is determined that the mode is virtual display mode, and the process moves to step (2). In this step (2), a graph ink address (X, Y) is calculated from the character address (x, y) using equations (5) and (6), and is stored in a predetermined memory area.

In this way, graph ink processing is performed, a predetermined graph ink display address is detected, and the movement locus of the cursor 4 is displayed.

As explained above, in the embodiment, an example is taken that is magnified 16 times vertically and horizontally, but the magnification is m times horizontally and n times vertically with respect to the display screen. ,n
may be a positive integer). In this case, the amount of movement of one character in the vertical and horizontal directions by the cursor may be set as a dot in the vertical and horizontal directions, or an integer fraction thereof, and this may be made to correspond to the unit movement amount of graphic processing. Therefore, it is not limited to this multiple.

In addition, the expansion may be only in either the vertical or horizontal direction,
In this case, simply set a virtual screen that is an integer multiple of the dot configuration of the character, set a virtual screen that is an integer multiple of the dot configuration of one character, and adjust the amount of movement of one character by the cursor on the screen. It is sufficient to perform graphic processing by making it correspond to the unit movement amount of graphic processing.

Further, in the embodiments, the explanation is centered on a CRT display device, but the display device is not limited to this.

〔Effect of the invention〕

As can be understood from the above explanation, this invention has the following features.

A virtual screen that is an integer multiple of the dot configuration of one character is set, and the amount of movement of one character by the cursor on this virtual screen corresponds to the unit movement amount of graphic processing, and graph ink processing is performed. Therefore, if you set a virtual screen that is an integer multiple and move one character on this virtual screen, on the virtual screen,
This can be treated as a movement amount of 1/integer in accordance with the integer multiple. As a result, the movement of a character cursor on the virtual screen can be made to correspond to the graph ink process of moving one dot on the virtual screen, and its coordinates can be detected.

Therefore, a figure drawn on the virtual screen can be converted into a graphic ink processed figure as it is, and if this figure is further reduced to an integer fraction on the screen of the original display device, the original Graphically processed figures can be easily obtained on the screen.

Therefore, without creating and displaying a special cursor pattern using software, graphic ink processing of figures etc. can be easily done by moving the cursor for characters, and the figures can also be freely created in a form equivalent to dot units. I can draw it.

[Brief explanation of the drawing]

FIG. 1 is an external view of a display device to which the graph ink processing method of the present invention is applied, FIG. 2 is an explanatory diagram of the dot configuration when a character cursor is made to correspond to graphic display, and FIG. FIG. 4 is an explanatory diagram showing the correspondence of the origin, FIG. 4 is an explanatory diagram of the transition of the graphic processing to the virtual screen, and FIG. 5 is a flowchart of the processing in the arithmetic processing unit. 1--display device, 2--keyboard. 2a - virtual screen setting key, 3 - display screen. 4- Cursor, 5- Normal screen. 6 - Virtual screen, 7- Character block. Patent Applicant Fuji Electric Manufacturing Co., Ltd. Fuji Facom Control Co., Ltd. Agent Patent Attorneys Tetsuya Mori Patent Attorney Takayoshi Naito Patent Attorney Masaru Shimizu Patent Attorney Kajiyama Anze-xc-111 Soichi Figure 5

Claims (2)

[Claims] (1) Set up a virtual screen that is an integer multiple of the dot configuration of one character, and perform graphic processing by making the amount of movement of the cursor for one character on this virtual screen correspond to the unit movement amount of graphic processing. A graph ink processing method characterized by: (2) A virtual screen of integral multiples is one that is m times horizontally and n times vertically as the display screen (where m and n are positive integers), and is 2. The graphic processing method according to claim 1, wherein the amount of movement for each character corresponds to a unit amount of movement in the vertical and horizontal directions.