JPH0855006A - Electronics - Google Patents

Abstract

(57) [Abstract] [Object] The present invention provides a variety of processes such as a graphic drawing process in an electronic device in which a cursor can be operated on a display screen by designating a plurality of positions on the display screen by the cursor operation. The purpose is to greatly improve operability. [Structure] When the "Cursor display" key 12c is operated, "01" is set to the cursor pointer CP, the first cursor C1 is designated and displayed on the display screen of the liquid crystal display unit 16, and the "Cursor switch" key 12d is operated. Then, "10" is set to the pointer CP, the second cursor C2 is designated and displayed while the first cursor key C1 is displayed, and the cursor keys "↑" 12U, "↓" 12D, "←" 12L, When the "→" 12R is selected and operated, the first or second cursor C1 or C2 designated by the pointer CP is moved in any direction according to the operation of the "cursor switching" key 12d, and the "LINE" key 12e
When is operated, a straight line graphic L is drawn and displayed between the first and second cursors C1 and C2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device in which a cursor can be operated on a display screen.

[0002]

2. Description of the Related Art Generally, in an electronic computer such as a personal computer or a workstation, the position of a drawing point on a graphic display screen is designated by a cursor.

That is, 1 displayed on the display screen
The two cursors are moved to desired positions by operating the cursor keys and the mouse, and fixedly displayed as one drawing point. Further, the cursor is moved again to a desired position from the first drawing point and fixedly displayed as another drawing point.

[0006] Then, after repeatedly performing the operation of fixing the drawing points by sequentially moving one cursor to a desired position, the drawing of a figure is instructed, and for example, a line segment is drawn between the drawing points. The figure connected by is drawn and displayed.

[0005]

However, in the above-mentioned conventional computer, since a plurality of drawing points must be sequentially fixed and displayed by one cursor, it takes time to move the cursor to each drawing point. However, there is a problem that it is difficult to correct the position of the drawing point that is already fixedly displayed.

Therefore, there is a problem that the operability of various processes performed by designating a plurality of positions on the display screen by operating the cursor is poor. The present invention has been made in view of the above problems, and in graphic drawing processing and the like, a plurality of cursors on a display screen can be displayed by a cursor operation without a troublesome operation of moving a cursor to a plurality of points or correcting a position of a point. It is an object of the present invention to provide an electronic device capable of significantly improving the operability of various processes performed by designating the position of.

[0007]

That is, the first electronic device according to the present invention is a display means, a cursor display means for displaying a plurality of cursors on a display screen of the display means, and the cursor display means. The present invention is configured by including cursor designating means for selectively designating a plurality of displayed cursors and cursor moving means for moving the cursor designated by the cursor designating means in an arbitrary direction.

A second electronic device according to the present invention is
Display means, cursor display means for displaying a plurality of cursors on the display screen of the display means, cursor designating means for selectively designating the plurality of cursors displayed by the cursor display means, and the cursor designating means Cursor moving means for moving the designated cursor in an arbitrary direction, and at least 2 displayed on the display means
And a graphic drawing means for drawing a graphic according to one or more cursors.

[0009]

In other words, in the first electronic device, the plurality of cursors displayed by the cursor display means are selectively designated by the cursor designating means, and the arbitrarily designated and designated cursors are arbitrarily designated by the cursor moving means. Since the cursors are moved in the direction, a plurality of cursors on the display screen are selectively selectively switched and designated to be moved and displayed.

Further, in the second electronic device, the plurality of cursors displayed by the cursor display means are selectively designated by the cursor designating means, and the arbitrary cursor thus selectively designated is designated by the cursor moving means. The cursor is moved in the direction and the figure is drawn by the figure drawing means in accordance with at least two cursors. Therefore, the plurality of cursors on the display screen are selectively selectively moved and displayed, and the figure is drawn between the cursors. Can be done.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an electronic circuit of an electronic computer that implements the electronic device of the present invention.

This electronic computer has a central processing unit (CP).
U) 11. This central processing unit (CPU) 1
1 indicates RO according to a key operation signal from the key input unit 12.
The system program stored in advance in M13 is activated to control the operation of each part of the electronic circuit. The central processing unit (CPU) 11 includes the key input part 12
In addition to the ROM 13 and the RAM 14, the RAM 14 is connected,
A dot matrix type liquid crystal display unit 16 is connected via the display drive circuit 15.

The key input unit 12 includes a numeric keypad, a symbol key, an operator key, a function key 12a including various function keys, and a function key 12a, as well as for switching between an arithmetic processing mode and a graph processing mode. A "mode" key 12b operated to the cursor, a "cursor display" key 12c operated to display a cursor on the liquid crystal display 16 or to erase the cursor displayed on the liquid crystal display 16, On the liquid crystal display unit 16, a "cursor switch" key 12d that is operated to selectively switch the cursor to be operated among the two displayed cursors C1 and C2 on the liquid crystal display unit 16 is selected. Cursor keys "↑" 12U, "↑" 12U ↓ ”12D,“ ← ”12L,“ → ”
12R is provided.

The key input section 12 has two cursors C1 displayed on the liquid crystal display section 16 as one of its numeric keypad and function key 12a.
, C2 is provided with a "LINE" key 12e which is operated when drawing a linear figure.

The ROM 13 has a system program for controlling the entire control process of the electronic computer,
A calculation processing program and a graph processing program activated in this system program are stored.

FIG. 2 is a diagram showing the structure of a data storage area developed in the RAM 14 of the electronic computer. R
In the AM 14, display data to be displayed on the liquid crystal display unit 16 is written as image data of a bitmap pattern, a display register 14a functioning as a frame memory, and various control processes in the central processing unit (CPU) 11 are performed. A work area 14b for temporarily storing various data that is input and output, and the key input unit 1
Set to "0" when the central processing unit (CPU) 11 is set to the arithmetic processing mode according to the operation of the "mode" key 12b in 2, and set to "1" when it is set to the graph processing mode. Mode flag register M, and two cursors C1 and C displayed on the liquid crystal display unit 16
Among them, a cursor pointer CP or the like in which pointer data indicating a cursor to be operated according to the operation of the “cursor switching” key 12d in the key input unit 12 is set is provided.

In this case, the cursor pointer CP is
"01" is set when the first cursor C1 is designated and "1" is set when the second cursor C2 is designated.
It is set to 0 ".

On the liquid crystal display section 16, for example, in the arithmetic processing mode, arithmetic expressions and arithmetic result data which are input in response to the operation of the ten keys of the key input section 12 and the function keys 12a are displayed. For example, in the graph processing mode, two cursors are displayed and moved according to the operation of the "cursor display" key 12c, the "cursor switching" key 12d of the key input unit 12 or the respective cursor keys 12U, 12D, 12L, 12R. Cursors C1 and C2,
Depending on the operation of the "LIN" key 12e, each cursor C1,
A straight line figure drawn between C2 is displayed.

Next, the operation of the electronic computer having the above configuration will be described. FIG. 3 is a flowchart showing the overall processing of the electronic computer. That is, when the "mode" key 12b in the key input unit 12 is operated, the RAM 1
4 is set to "0" in the mode flag register M, that is, when the central processing unit (CPU) 11 is currently set to the arithmetic processing mode, "1" is set in the mode flag register M. Is set, and the central processing unit (CPU) 11 is switched to the graph processing mode and set (steps S1 → S2 → S3).

When the "mode" key 12b is operated, "1" is set in the mode flag register M of the RAM 14.
Is set, that is, when the central processing unit (CPU) 11 is currently set to the graph processing mode, "0" is set in the mode flag register M, and the central processing unit (CPU) is set. 11 is switched to the arithmetic processing mode and set (steps S1 → S2 → S4).

In the arithmetic processing mode in which the mode flag register M of the RAM 14 is set to "0", the central processing unit (CPU) 11 performs arithmetic processing according to the arithmetic operation in the key input unit 12. It is executed (steps S5 → S6).

In the graph processing mode in which "1" is set in the mode flag register M, the central processing unit (CPU) 11 executes the graph processing corresponding to the graph operation in the key input unit 12 (see FIG. 4, FIG. 4). 5) is executed (step S5 → SA).

FIG. 4 is a flow chart showing the graph processing in the electronic computer. FIG. 5 is a view showing a cursor display state accompanying a key operation of graph processing in the electronic computer.

That is, in the graph processing mode in which "1" is set in the mode flag register M of the RAM 14 in response to the "mode" key 12b of the key input section 12, the "cursor display of the key input section 12 is displayed. Key 12
When c is operated, the cursor pointer CP in the RAM 14
Is read by the central processing unit (CPU) 11, and it is determined whether or not the pointer data is "CP =" 00 "", that is, whether or not the cursor is not designated (steps A1 → A2).

In this case, since the cursor pointer CP is reset to "00" in the initial state of this graph processing, it is judged that "CP =" 00 "", that is, no cursor is designated, and the cursor pointer CP The pointer data "01" for designating the first cursor C1 is set in (step A2 → A3).

Then, as shown in FIG. 5A, the liquid crystal display section 16 has a first cursor C1 at the center of its display screen.
Is displayed blinking. As shown in FIG. 5A, the first
When the cursor keys "→" 12R and "↑" 12U of the key input unit 12 are operated to move the first cursor C1 to the upper right of the display screen while the cursor C1 is blinking in the center, the central processing unit ( CPU) 11 causes the pointer data of the cursor pointer CP to be “CP =“ 0
It is judged whether or not it is "1""(step A4 → A5).

In this case, since the cursor pointer CP is set to "01" for designating the first cursor C1, it is judged that "CP =" 01 "", and as shown in FIG. The first blinking display in the center of the screen
The cursor C1 is moved and displayed at the upper right of the display screen as indicated by broken line arrows R and U according to the operation of the cursor keys "→" 12R and "↑" 12U (steps A5 → A6).

Then, when the "cursor switch" key 12d of the key input unit 12 is operated to designate a second cursor C2 different from the first cursor C1, the cursor pointer CP is currently set to the first cursor C1. To specify "0
Since it is determined that the pointer data is set to "1", pointer data "10" designating the second cursor C2 is set to the cursor pointer CP (steps A7 → A8 → A).
9).

Then, as shown in FIG. 5C, the liquid crystal display unit 16 is moved to the upper right position on the display screen.
The cursor C1 is lit and displayed, and the second cursor C2 is flickered and displayed in the center of the display screen.

As shown in FIG. 5C, when the first cursor C1 is in the upper right lighting display state and the second cursor C2 is in the center blinking display state, the second cursor C2 is displayed in the upper left corner of the display screen. When the cursor keys "←" 12L and "↑" 12U of the key input unit 12 are operated to move the cursor pointer C by the central processing unit (CPU) 11.
Since it is judged that the pointer data of P is set to "10" for designating the second cursor C2,
As shown in (D), the second cursor C2, which is displayed blinking in the center of the display screen, is the cursor key "←".
In accordance with the operation of 12L and “↑” 12U, the display is moved to the upper left on the display screen as indicated by broken line arrows L and U (steps A4 → A5 → A10 → A11).

On the other hand, as shown in FIG. 5 (D), the first
The upper right lighting display state of the cursor C1 and the second cursor C
When the "cursor switching" key 12d of the key input unit 12 is operated to specify the first cursor C1 again in the state of the upper left blinking display of 2, the cursor pointer CP is
At present, it is judged that the cursor is set to "10" for designating the second cursor C2, and therefore pointer data "01" for designating the first cursor C1 is set to the cursor pointer CP (steps A7 → A8 → A12 → A1
3).

Then, as shown in FIG. 5 (E), the liquid crystal display unit 16 is moved to the second upper left position on the display screen.
The cursor C2 is illuminated and displayed, and the first cursor C1 moved to the upper right of the display screen is again blinked.

When the cursor key "↓" 12D of the key input unit 12 is operated to move and correct the display position of the first cursor C1 from the upper right to the lower right on the display screen,
Since the central processing unit (CPU) 11 judges that the pointer data of the cursor pointer CP is set to "01" for designating the first cursor C1, FIG.
As shown in (F), the first cursor C1 blinking in the upper right corner of the display screen is the cursor key "↓" 1
In accordance with the 2D operation, as indicated by the broken line arrow D, it is moved to the lower right on the display screen and corrected and displayed (step A4 →
A5 → A6).

Thus, the first cursor C1 on the display screen
If the "LINE" key 12e in the key input unit 12 is operated in a state in which the second cursor C2 and the second cursor C2 are individually designated and moved to desired positions, the first cursor C1 and the second cursor C2 The XY coordinates on each display screen are the central processing unit (CPU) 11
Then, as shown in FIG. 5G, a straight line figure L connecting the coordinates of the first cursor C1 and the coordinates of the second cursor C2 as a drawing point is drawn and displayed.

When the "cursor display" key 12c in the key input section 12 is operated again, the cursor pointer CP is currently set to "01".
= “00” ”, that is, it is determined that the cursor is not designated, and the pointer data of the cursor pointer CP is set to“ 00 ”to set the cursor not designated (step A1 → A2). → A14).

Then, as shown in FIG. 5H, both the first cursor C1 and the second cursor C2 on the display screen are erased, and only the drawn straight line figure L is displayed (step A15).

Therefore, according to the electronic computer having the above structure, when the "cursor display" key 12c of the key input unit 12 is operated, "0" is displayed on the cursor pointer CP in the RAM 14.
1 ”is set and the first image is displayed on the display screen of the liquid crystal display unit 16.
Cursor C1 is designated and displayed, and "Cursor switch" key 1
When 2d is operated, "1" is displayed on the cursor pointer CP.
0 "is set, the second cursor C2 is designated and displayed while the first cursor key C1 on the display screen is displayed, and the cursor keys" ↑ "12U," ↓ "12D," ← "
When 12L or "→" 12R is selected, the cursor pointer C is displayed in response to the operation of the "cursor switching" key 12d.
The first cursor C1 or the second cursor C2 designated by P is moved and displayed in any direction, and the "LINE" key 1
When 2e is operated, a straight line figure L connecting the first cursor C1 and the second cursor C2 is drawn and displayed.
Also, it becomes possible to quickly specify the different positions on the display screen by the second cursors C1 and C2, and to easily correct the positions of the cursors C1 and C2 on the display screen.

Therefore, the first and second cursors C1 and C2
The drawing position can be used as the drawing point to efficiently perform the graphic drawing process. In the embodiment, the two cursors C1 and C2 of the first cursor C1 and the second cursor C2 are displayed on the liquid crystal display unit 16, and the two cursors C1 and C2 are selectively operated by the "cursor switching" key 12d. Although the configuration has been described in which the cursors are designated and freely moved in arbitrary directions, the number of the cursors is not limited to two, and three or more cursors are displayed and each of them is referred to as the "cursor switching". It is also possible to adopt a configuration in which a moving operation is performed by selectively designating with a "key" or the like.

Also, in the above embodiment, two cursors C
Although the configuration in which the linear figure L is drawn according to 1 and C2 has been described, the shape of the drawn figure is not limited to a straight line, and may be, for example, a circular figure or a polygonal figure.

[0040]

As described above, according to the first electronic device of the present invention, the plurality of cursors displayed by the cursor display means are selectively designated by the cursor designating means,
Since the arbitrarily selected and designated cursor is moved in any direction by the cursor moving means, a plurality of cursors on the display screen can be selectively selectively designated for movement and displayed.

According to the second electronic device of the present invention,
Multiple cursors displayed by the cursor display means
The cursor is selectively designated by the cursor designating means, the arbitrarily selected and designated cursor is moved by the cursor moving means in any direction, and the graphic drawing means draws a graphic according to at least two cursors. A plurality of cursors above can be selectively selectively switched and designated to be moved and displayed, and a graphic can be drawn between the cursors.

Therefore, according to the present invention, in the graphic drawing process and the like, a plurality of positions on the display screen can be designated by the cursor operation without the trouble of moving the cursor to a plurality of points and correcting the position of the point. It is possible to greatly improve the operability of various processes performed by the above.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an electronic circuit of an electronic computer according to an embodiment of an electronic device of the invention.

FIG. 2 is a diagram showing a configuration of a data storage area developed in a RAM of the electronic computer.

FIG. 3 is a flowchart showing the overall processing of the electronic computer.

FIG. 4 is a flowchart showing graph processing in the electronic computer.

FIG. 5 is a diagram showing a cursor display state accompanying a key operation of graph processing in the electronic computer.

[Explanation of symbols]

11 ... Central processing unit (CPU), 12 ... Key input unit, 1
2a ... Numeric keys and function keys, 12b ... "Mode" key, 12c ... "Cursor display" key, 12d ...
"Cursor switch" key, 12e ... "LINE" key, 1
2U ... "↑" key, 12D ... "↓" key, 12L ...
"←" key, 12R ... "→" key, 13 ... ROM, 14
... RAM, 14a ... Display register, 14b ... Work area, 15 ... Display drive circuit, 16 ... Dot matrix type liquid crystal display section, M ... Mode flag register, CP ... Cursor pointer, C1 ... First cursor, C2 ... Second cursor .

Claims (2)

[Claims] 1. Display means, cursor display means for displaying a plurality of cursors on a display screen of the display means, and cursor designating means for selectively designating a plurality of cursors displayed by the cursor display means. An electronic device comprising: a cursor moving unit that moves the cursor designated by the cursor designating unit in an arbitrary direction. 2. Display means, cursor display means for displaying a plurality of cursors on a display screen of the display means, and cursor designating means for selectively designating the plurality of cursors displayed by the cursor display means. A cursor moving means for moving the cursor designated by the cursor designating means in an arbitrary direction; and a graphic drawing means for drawing a graphic according to at least two cursors displayed on the display means. Characteristic electronic equipment.