JPS60130793A - Information processor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to an information processing device that uses a pointing device, etc. to draw figures, etc., and particularly to an information processing device that can later read out instruction information from a pointing device, etc. It is related to.

[Prior Art] In recent years, information processing apparatuses have become commonplace in which various types of drawings can be drawn using a pointing device called a mouse that can point to any point on a drawing using a graphic cursor. The display screen 1Z of these devices displays ICOs that are easily understood by operators using pictograms, etc.
There is a display area for symbolic figures called N, and you can move the graphic cursor using the mouse to move it to this display area, and then select a process by pressing the point key of the mouse or click the graphic cursor on the screen. The location was specified by specifying a single point.

For example, if you want to draw a 1-pie graph, first operate the mouse to move the graphic cursor to the ICON position indicating a circle, then press the point key on the mouse to select the process of drawing a circle. Then, to specify the center point and radius of the circle, move the graphic cursor to the top of the display screen to the center where you want to draw the circle, press the point key, and use the mouse to specify the size of the radius of the next circle. Move to a point on the circumference of the circle you want to draw and press the point key to draw the circle.

In this way, the selection of a series of processes for drawing a circle using the mouse, and the method for specifying the center point and radius of the circle, are operated in a manner similar to human sensations, and this type of information processing device
It is an excellent machine interface.

However, as the resolution of display devices has improved in recent years, there is a drawback that it is difficult to indicate the same point by moving the graphic cursor 6 as the mouse moves.

Particularly in the case of drawing the circle described above, it is almost impossible to accurately specify the point where the center of the circle was specified again.

When creating a pie chart, etc., it is necessary to first draw a circle and then draw a line from the center point of the circle, and if the center point cannot be accurately specified again, the center of the graph shifts.

[Objective] An object of the present invention is to provide an information processing device capable of reading out a previously specified designated position in order to solve the drawbacks of the above-mentioned prior art.

[Embodiment] FIGS. 1 to 4 are diagrams showing an embodiment of the present invention, and an embodiment of the apparatus of the present invention will be described below based on the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention, in which 2 is a CPU that controls the entire information processing device, 2 is a CRT display (hereinafter abbreviated as CRT) for displaying characters, figures, etc., 3 is a block diagram of an embodiment of the present invention. is a display control unit that controls the display of the CRT2;
4 is a video RAM storing information to be displayed on the CRT 2; 5 is a pointing device called a mouse; 6 is a pointing device that detects the position information of the mouse 5 and displays graphics on the CRTZ based on the detected position. This is a mouse control unit that outputs the cursor position. The mouse 5 has two point keys, and by pressing these keys, the CPU can read the current position of the graphic cursor from the mouse control section 6. Further, the display control section 3 synthesizes the display information stored in the video RAM 4 and the graphic cursor information output from the mouse control section 6, and displays the synthesized information on the display surface of the CRT 2.

The mouse control unit 6 constantly detects the movement of the mouse 5 and controls the mouse 5.
The position information of the graphic cursor corresponding to the position information of is output to the display control section 3, and the CRT is
2.4: The graphic cursor now moves quickly. Further, the position of the graphic cursor can also be moved by instructions from the CPU 1 through the mouse control unit 6t.

7 is a ROM in which a control program for the CPUI that implements the present invention is stored, and 8 is a RAM used for arithmetic control of the CPU. This RAMB is provided with a stack 8a in which position designation information using the mouse 5, which will be described later, is stored.

FIG. 2 is an external view of the mouse 5 shown in FIG.
0 is a point key, and 11 is an "UNDO" key.

Point key 9 of mouse 5 is your index finger, point key 1
0 can be operated with the middle finger, UNDO key II can be operated with the thumb, and it is designed to fit well in the palm of the hand.

Next, the control of the position designation process using the mouse 5 when creating a figure using the CPU of the apparatus of this embodiment will be explained with reference to the flowchart shown in FIG.

First, in step St, the mouse control unit 6 turns the mouse 5 UN.
Check whether DO key 11 was pressed manually and press UNDO key l
If l has not been input, the process advances to step S2, and it is then checked whether point key 9 or 10 has been input. When point key 9 or 10 is not input, the process exits from this processing routine. If the point key 9 or 10 is pressed manually, the process advances to step S3, and the current position of the graphic cursor is read from the mouse control unit 6. Then, it is determined whether or not the graphic cursor position read in step S4 is within the graphics area of the CRT 2. If it is within the graphic area, the graphic cursor position read in step S5 is pushed onto the stack 8a in the RAMB. Then, this process ends.

If it is outside the graphic area in step S4, the process advances to step S6 to check whether it is within the display effective range of the CRT 2, and if it is within the range, no processing is performed to invalidate the input by point keys 9 or 10. This process ends. If it is within the effective range, this is the image display position specified by the processing mode of the apparatus of this embodiment (hereinafter referred to as IC0N), so the process is set to the processing execution mode for executing the specified process, and the process ends.

An example of the display screen of this CRT 2 is shown in FIG.

20 in the figure is the graphic area where various drawings can be made, and the surrounding figures are IC0Ns that specify the processing mode.
For example, 21 is an area for specifying a processing mode for drawing a circle, and 22 is an area for specifying a processing mode for drawing a straight line.

Returning to the flowchart of FIG. 3, if in step S1 the UNDO key 11 is manually operated, the process proceeds to step S10, where one graphic cursor position address stored in the stack 8a in the RAMB is popped. As a result, the addresses of the graphic cursors that were pressed in the previous step S6 are read out in reverse order, and the addresses of the graphic cursors that were previously input can be sequentially read out. Then, the process proceeds to step S11, and the address read from the stack 8a is sent to the mouse control unit 6, and the mouse control unit 6 outputs position information to the display control unit 3 in order to move the graphic cursor to the sent address position. , moves the graphic cursor on the CRTZ to the popped address position.

- For example, when drawing a pie chart, first move the mouse 5, bring the graphic cursor 23 to the circle drawing mode designation area of 21 of IC0N, manually press point key 9 or 10, and draw the circle. Set to drawing processing execution mode. In the example of FIG. 4, the graphic cursor 23 is 24.
Move to the center point of the circle corresponding to , and press point key 9 or 1.
Input 0 to set the 24th position as the center point of the circle and store it in the stack 8a. Then, the graphic cursor 23 is moved to 23 points corresponding to the circumference of the circle to be drawn, and the point key 9 or 10 is pressed manually.

As a result, a circle can be drawn with point 24 as the center and point 25 as one point on the circumference 1-. This state is shown in FIG.

Next, in order to draw a pie chart, IC0N22 for straight line drawing is specified, and the mode is set to straight line drawing processing execution mode.

Here, in the past, it was extremely difficult to accurately position the graphic cursor at the center point of the circle.
In the device 8 of this embodiment, the UNDO key 1.1 of the mouse 5 is set to 1.
By pressing once, the graphic cursor 23 is moved to point 25, and by pressing it again, it is moved to point 2, which is the center of the circle.
You can move it to point 4 with a force of 1. Then manually point 24 points (position input) using point keys 9 or 10, and then point to a point on the circumference, i + I 4 people 1 are connected by a jα line, and the pie chart is created. Can be created. As mentioned above, the 24 points are pointed again and stored in the stack 8a, and a pie chart can be easily created by repeating the same operation.

In the above explanation UNDO key 11 Display of graphic cursor moved manually 1 Even if the display continues until a point is reached using the point key, it will automatically be pushed to the stack and correspond to the mouse position after a certain period of time has passed. It may also be possible to automatically change the color to white at the position where the image is displayed.

[Effects] As explained above, according to the present invention, when an arbitrary point in the display area of the display means is specified, a storage means for storing the specified position and a means for reading out the stored specified position in reverse order are provided. With this feature, you can re-specify a previously specified position with a simple operation, and even when drawing a pie chart or drawing a figure with complex intersections, you can easily draw a complex figure etc. An information processing device capable of drawing can be provided.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of an embodiment device δ of the present invention, Fig. 2 is an external view of a mouse of an embodiment of the present invention, and Fig. 3 is a view of the display screen of a CRT using a mouse of the embodiment device. FIG. 4 is a flowchart showing position designation processing control, and is a diagram showing an example of a display screen of the apparatus of this embodiment. In the figure, 1...CPU, 2...CRT, 3...Display control unit, 4...Video RAM, 5...Mouse, 6...
...Mouse control unit, 7...ROM, 8...RAM,
8a...Stack, 9.10...Point key, 1
1... UN'DO key, 20... Graphic area, 23... Graphic cursor. Figure 3 Figure 4 D

Claims (2)

[Claims] (1) A display means for displaying information, a designation means for designating an arbitrary point in the display area of the display means, a storage means for sequentially storing designated positions of the designation means, and the designation stored in the storage means 1. An information processing apparatus comprising: position reading means for reading out positions designated by the means in the reverse order of storage. (2) The information processing apparatus according to claim 1, wherein the position specification of the specifying means and the reading instruction of the position reading means are performed by a key switch provided adjacently.