JPS6049429A - Graphic producer - Google Patents

Abstract

PURPOSE:To inform assuredly a state change of a display dot of a free drawing mode to an operator by using a means which performs comparison between the states set before and after the operation of the display dot and a means which performs an external notification in response to the result of comparison. CONSTITUTION:A control part 16 extracts X0, Y0 and DOT2 out of a memory part 15 and rewrites the contents of the positions corresponding to X0 and Y0 of a dot refresh memory 12 to the contents of the DOT2 in order to display the results of operations in dots at the corresponding position of a CRT monitor 13. Then DOT1 and DOT2 are extracted out of the part 15, and the comparison is given between the states of display dots set before and after the operation. Then a state change of the dot, if detected, is informed aurally or visually to an operator via an external notification part 18 and by means of a buzzer, a lamp, etc. Then the part 16 shifts a cursor.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention includes a display monitor that displays figures in dots,
In particular, the present invention relates to a graphic creation device having a free drawing function.

[Technical background of the invention]

Generally speaking, there are two methods for drawing figures on the display screen of a display monitor: one is to sequentially specify the screen position using a special input device such as a light pen, joystay, lever, or mouse, and the other is to use a keyboard. It is being The former method is applied to free drawing to draw arbitrary shapes. On the other hand, the latter method draws basic figures such as straight lines, circles, rectangles, ellipses, and even triangles by specifying attributes such as their type, size, position, and inclination. It was applied to the drawing of.

[Problems with background technology]

As described above, in the past, free drawing required a special input device such as a light pen, joystick, and mouse in addition to a normal keyboard, and the device had the disadvantage of being expensive.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and its purpose is to provide a graphic creation device that can reliably notify an operator of changes in the state of the graphic creation device, which allows free drawing using the cursor movement instruction function of the keyboard. ◎ [Summary of the Invention] This invention provides a method in which cursor position information indicating the display position of the cursor and calculation designation information indicating the content of the demonstration without being applied to the displayed dot are initially set. The cursor movement amount information (including movement direction) corresponding to the cursor movement instruction content from the cursor movement instruction means is further set in the cursor movement instruction means, and the display dot at the screen position indicated by the cursor position information in the storage unit is set. Performs the calculation indicated by the calculation specification 111 report in the storage unit on the state of , and displays the result at the corresponding screen position,
The states of the display dots that have undergone this calculation before and after the calculation are compared, and an external notification is sent according to the comparison result. 1. A new cursor position is determined based on the cursor position information and cursor movement amount information in the storage unit. By obtaining the cursor position information shown in the drawing, and updating the cursor position information in the storage unit based on the cursor position information and moving the cursor, free drawing is possible, and the state of the displayed dots at the time of free drawing is Changes can be notified to the operator.

[Embodiments of the invention]

FIG. 1 shows the configuration of a graphic creation device according to an embodiment of the present invention. In the figure, a display controller 11, for example a CRT controller, uses one screen worth of dots and mother turns stored in a dot refresh memory (plane memory, frame memory) 12 to perform a CRT controller.
Display control for the RT monitor 13 is performed. A cursor display/erase section 14 is connected to the CRT controller 1. This cursor display/erase section 14 has a cursor (・
generation and deletion of turns).

The cursor generated by the cursor display/erase section 14 is displayed on the CRT monitor 1 under the control of the CRT controller.
3. Information such as the cursor display position, cursor movement amount, and state changes of display dots on the CRT monitor 13 is stored in the storage section 15.
1 is connected to the control section 16. An input device having a cursor movement instruction function, such as a keyboard 17, and an external notification section 18 are also connected to the control section 16.

The control section 16 has built-in firmware (not shown), and the firmware controls the CRT controller 11, cursor display/erase section 14, storage section 15, keypad 17,
and controls the external notification section 18. key + l'-do 17
The key human input data from the controller 16 is taken in by the control unit 16, and transferred as necessary via the path 20 to the CPU 7y, which controls the entire device. A storage device 21 in which various programs, data, etc. are stored is connected to this path 20.

Next, the operation of one embodiment of the present invention will be explained with reference to FIGS. 2 to 5. Now under the control of N CPU 79,
It is assumed that, for example, a work menu is displayed on the CRT monitor 13 via the control unit 16 and the CRT controller 1, and a menu selection indicating free drawing is made by the operator's manual key operation. In this state, the operator
3, specify and input the range in which the cursor can move from key date 17.

The position of the display dot, such as the cursor position on the CRT monitor 13, is XI'! Coordinates in the Cartesian coordinate system (x.

y). Here, XtV is (CRT monitor 13
Since it corresponds to the display dot above), it is a discrete quantity and is a non-negative integer. Therefore, if the rectangular closed area indicated by the diagonal line in Figure 2 is the range in which the cursor can move, this range is defined by the two points (xi +
yx ) +'(x2172). In this example, the upper and lower sides, the left side and the right side of the boundary of the closed area defined by % (''1 +)'1 ) + (X2 + y2) are treated as if they were in instant contact, and the cursor moves outside this closed area. In addition, in this embodiment, the cursor position on the CRT monitor 13 is particularly set at (XQ +
yo). In addition, the cursor /
``+'' (glass symbol) is used.

When the operator finishes specifying the range in which the cursor can move (closed area), the operator operates the keyboard 17 to specify the content of the calculation to be performed on the displayed dots to be free drawn. Further, the operator inputs the coordinates (xo+yo) indicating the initial position of the cursor from the key date '17 in order to specify the starting position of free drawing. A series of instruction contents from the keyboard 17 are transferred to the CP (IJ9) via the control section 16.The CPU 9 temporarily stores these instruction contents in the storage device 21, and then converts them into a format that can be used by the control section 16. The information is converted into information and transferred to the control unit 16.As a result, the control unit J6 converts the information (coordinate information) that defines the closed area to the information (coordinate information) that defines the closed area, as shown in the flowchart of FIG.
, calculation designation information indicating the content of the calculation to be performed on the displayed dots and gs, and cursor position information indicating the initial position of the cursor are stored in the storage unit 15 (steps Sl to S3).

In this way, the initial setting of the contents of a series of instructions from the keyboard 17 in the storage section 15 is completed.

FIG. 5 shows a storage unit 15 in which a series of instruction contents are set.
Indicates the content of In FIG. 5, X 1 +Yl , X
2 e Y2 is the above-mentioned "I 1 )'l r X2+
Corresponds to y2, and Xo, Y, is X. , yo.

However, Xo and Yo change as the cursor moves. That is, X. , Yo is the cursor display position (x, y coordinates)
This corresponds to xo+yo (free drawing start position) in the initial state.

Further, OPX indicates operation designation information. In addition, DX.

D Y , DOT 1 , and DOT 2 are set in response to a cursor movement operation using the - key 17, as will be described later. DX and DY indicate the amount of movement (+1.O, -1, etc.) including the direction of movement of the cursor. For example, if DX=+1(-1), move the cursor to X1ilI!
This indicates that I will move by one tot in the positive (buy) direction. DOT 1 and DOT 2 indicate the states of the display dots specified by the cursor before and after the calculation, respectively.

When the initial setting to the storage section 15 is completed, the control section 16 displays a kernel on the CRT monitor 13 as shown in the flowchart of FIG. 4 (step S4). In other words, control
The + section 16 first receives information Xo, Y indicating the cursor display position (in this case, the initial position of the cursor) from the storage section 16.
o is taken out and the cursor display/erase section 14 generates a υ cursor. Therefore, the control unit 16
A cursor is displayed on the CRT monitor 13 by the controller 11.

When the cursor is displayed on the CRT monitor 13, the operator operates a cursor movement means such as a cursor movement instruction key on the keyboard 17 for free drawing. Control unit 16
reads the key manual data associated with the cursor movement instruction operation from key date 17, converts the data to the corresponding cursor movement ff1bMDX, DY, and then DX, DY.
is stored in a predetermined area of the storage unit 15 (Step S5).

Next, the control unit 16 retrieves the cursor display position information XO, Y stored in a predetermined area of the storage unit 15. Then, the control section 16 performs X. .

The state of the display dot on the CRT monitor 13 indicated by Yo is read in by IJ-dot access to the dot refresh memory 12, and the read information (the state of the 19 dots at the position specified by the cursor) is read as DOT J. The information is stored in a predetermined area of the storage unit 15. In addition, the control unit Noro retrieves the calculation specification information opx stored in a predetermined area of the storage unit 15, and extracts the calculation (
For example, dot ON, dot OFF, dot state inversion, etc.) are applied to the contents of DOT 1 (step S6).

Then, the control unit 16 stores the calculation result as DOT 2 in a predetermined area of the storage unit 15.

Next, the control unit 16 receives Xo from the storage unit 15.

Yo, take out DOT2 and set X in dot refresh memory 12. By rewriting the contents of the position corresponding to IYo with the contents of DOT2, the calculation result is displayed as a dot at the corresponding position on the CRT monitor 13 (step 87). Subsequently, the control unit 16 reads DOT J and DO from the storage unit 15.
T2 is taken out and the states of the displayed dots before and after the calculation are compared 1. It is determined whether the state of the dots has changed (step sg).

If the determination in step S8 is YES 4: IJ is fixed, that is, if the state of the dot is changing, the control unit 16 activates a buzzer or rung, etc. via the external notification unit 18, so that the operator's auditory or visual sense The operator is notified of the change in the dot state by resorting to the following (step S9). Thereafter, the control unit 16 performs the cursor movement process (swag 510) described below. Incidentally, if the determination in step S8 is NO, that is, if the state of the dot has not changed, the step S10 is executed without going through the Stellar fs9.
will be carried out.

In step S10, first, Xor is stored in the storage unit 15.

Y(1+X11 yl l x21 YI r DX
r DY is taken out. Therefore, the control unit 16 controls the current cursor display position (X(1+Yo)), the closed area (XH
+YI)+(X2rYI), and a new cursor position (Xo', Y0/) on the closed area is calculated based on the cursor moving hands (DX, DY). Based on the new cursor position (XO' p yo'), the control unit 16
The old cursor is erased by the cursor display/erase unit 14,
A IIr cursor is generated and the cursor is moved on the CRT monitor 13 via the CRT controller 1. Further, the control unit 16 controls the cursor position (X(
1', yoI) to the current cursor display ability R(xO.

Yo), and the information X0eYQ in the storage unit 15 is updated. When the control unit 16 finishes the cursor movement processing in step SIO, the control unit 16 performs the cursor movement instruction operation r of Stella fS5.
(Accompanying) Return to key manual data reading process. In this Stella fS5, key manual data is also determined, and if the data is key manual data indicating the end of free drawing, the control unit 16 notifies the CPU 19 of the end of free drawing. At the same time, information Xo and Yo indicating the current cursor display position is stored in the storage device 21. This ends the free drawing process and returns to the drawing process of the CPU 19 (main body).

In this manner, in this embodiment, free drawing, which is one of the drawing processes, can be performed separately from the main body, so that the load on the main body can be reduced.

The contents of the calculation performed on the display dot specified by the cursor include the ON/OFF of the dot shown in the above embodiment.
In addition to state reversal, there are also brightness changes. In addition, in the case of color display, there are changes in color, etc. Also, the cursor movement amount DX.

It is possible to apply any integer not limited to ±1 or 0 as DY.

〔Effect of the invention〕

As detailed above, according to the present invention, the existing key is
Free drawing can be performed using the cursor movement instruction function of the card. Therefore, special input devices such as a light pen, stick, mouse, etc. are not required, and the cost of the device can be reduced.

Further, according to the present invention, the operator can judge changes in the state of the display dots during free drawing without visually checking the fine display dots one by one. Therefore, the burden on the operator during free drawing can be reduced, and drawing efficiency can be improved.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a figure creation device according to an embodiment of the present invention, FIG. 2 is a diagram for explaining the range (closed area) in which the cursor can move on a display drawing, and FIG. FIG. 4 is a flowchart showing the procedure of free drawing processing, and FIG. 5 is a diagram showing the main part of the storage unit. 13... CRT monitor, 15... Storage section, 16...
- City control unit, 17...Keyboard, 18...External notification sound, 19...CPU. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Book 4$

Claims (1)

[Claims] In a figure creation device equipped with a display monitor that displays figures as dots, a cursor movement instruction means for instructing the movement of a cursor displayed on the display monitor, cursor position information indicating a display position of the cursor, and a display dot. a storage section having an area in which calculation designation information indicating the content of the calculation to be performed is initially set and cursor movement amount information indicating the movement amount including the movement direction of the cursor; A means for setting out-of-date cursor movement amount information in the storage unit, and a state of a display dot at a screen position indicated by the cursor position information set in the storage unit, and setting in the storage unit. means for performing the calculation indicated by the calculation specification information and displaying the result on the display device; means for comparing the state of the display dots before and after the calculation on which the calculation has been performed by this means; cursor position information indicating a new cursor position based on the cursor position information and cursor movement amount information set in the storage unit; A graphic creation device comprising means for updating the cursor position information and moving the cursor.