JPH09106338A - Cursor display system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To watch displayed contents hidden under the display location of a cursor by changing a cursor display pattern according to the moving direction of a two-dimensional coordinate. SOLUTION: A moving amount reading means 2 reads the moving amount of the two-dimensional coordinate inputted by a mouse 1, calculates the present location coordinate of a cursor and stores the coordinate in a location coordinate storage area 8. A moving direction calculation means 3 calculates the moving direction based on the moving amount. A cursor display pattern selection means 4 refers to a cursor display pattern table 6, selects the cursor display pattern corresponding to the moving direction and saves the pattern in a save area 7. A cursor display means 5 displays the cursor display pattern of a save area 7 on a display 9 so that the pattern may be the location of the location coordinate stored in the location coordinate storage area 8. The cursor display means 5 redisplays the cursor display pattern displayed previous time when the moving amount is smaller than a fixed value.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cursor display system, and more particularly to a cursor display system for rotating and displaying a cursor corresponding to a moving direction based on a moving amount of two-dimensional coordinates input from a coordinate input device.

[0002]

2. Description of the Related Art Conventionally, as a cursor display system of this type, as disclosed in Japanese Patent Laid-Open No. 4-77785,
The shape of the cursor can be changed based on the detection result of the moving speed detecting means of the coordinate input device, or the like.
As disclosed in Japanese Laid-Open Patent Publication No. 17-17, the shape of the cursor is changed based on the width of change between the previous and current input values from the coordinate input device, or as disclosed in Japanese Laid-Open Patent Publication No. 4-198986. There has been a method of measuring the unoperated elapsed time of the coordinate input device and changing the shape of the cursor based on the measured value.

[0003]

In the above-mentioned conventional cursor display system, the direction of the cursor is always constant even if the shape of the cursor is changed. Therefore, the display contents below the display position of the cursor are changed by the cursor. There was a problem that it might be hidden and disappear.

On the other hand, in order to solve this problem, the shape of the cursor may be made small. However, if the shape of the cursor is made small, the area hidden and invisible becomes small, but on the contrary, the cursor becomes difficult to see. There was a point.

In view of the above points, an object of the present invention is to change the cursor display pattern according to the moving direction based on the moving amount by the coordinate input device when it is desired to see the display contents hidden under the display position of the cursor. Thus, it is to provide a cursor display method that allows the user to see the display contents hidden under the display position of the cursor.

[0006]

The cursor display system according to the present invention includes a movement amount reading means for reading a movement amount of two-dimensional coordinates input from a coordinate input device and a movement amount read by the movement amount reading means. A moving direction calculating means for calculating a moving direction based on the moving direction, a cursor display pattern selecting means for selecting a cursor display pattern corresponding to the moving direction calculated by the moving direction calculating means, and a cursor display pattern selecting means Cursor display means for displaying the cursor display pattern on the display device.

[0007]

Next, the present invention will be described with reference to the drawings.

[0008]

1 is a block diagram showing the configuration of a cursor display system according to an embodiment of the present invention. The cursor display system of the present embodiment uses the mouse 1 as the coordinate input device and the movement amount (Δx, Δ) of the two-dimensional coordinates input from the mouse 1.
y), a moving amount reading unit 2, a moving direction calculating unit 3 for calculating the moving direction θ based on the moving amount (Δx, Δy) read by the moving amount reading unit 2, and a moving direction calculating unit 3. Cursor display pattern selection means 4 for selecting a cursor display pattern corresponding to the selected moving direction θ, and cursor display means 5 for displaying the cursor display pattern selected by the cursor display pattern selection means 4 on a display 9 which is a display device. , A cursor display pattern table 6 for storing the cursor display pattern in association with the movement direction θ, a save area 7 for saving the cursor display pattern to be displayed, and position coordinates (x,
y) is stored in the position coordinate storage area 8 and a display 9 which is a display device.

FIG. 2 is a flow chart showing the process of the cursor display system of the present embodiment, and this process is activated by an interrupt from the mouse 1 at fixed time intervals. Referring to FIG. 2, the process of the cursor display method according to the present embodiment includes a movement amount reading / position coordinate calculation step S10, a movement distance calculation step S11, and a movement distance / specified value comparison step S12.
Exception processing flag OFF setting step S13, moving direction calculation step S14, cursor display pattern determination step S15, cursor display pattern saving step S16, cursor display step S17, exception processing flag ON determination step S21, exception Processing flag ON
A setting step S22, a movement amount storing step S23,
Moving amount adding step S24 and moving distance calculating step S
25, a movement distance / specified value comparison step S26, and a movement amount transfer step S27. Step S2
The processes after 1 are exceptional processes when the moving distance z is very small, and when the exceptional process flag F is ON, the process proceeds to step S2.
Indicates that exception processing after 1 is continuously executed.

FIG. 3 is a diagram for explaining a method of determining the moving direction θ in the cursor display system of this embodiment. The moving direction θ is obtained by the arctan of the quotient obtained by dividing the moving amount Δy in the y direction by the moving amount Δx in the x direction.

FIG. 4 shows a cursor display pattern table 6
It is a figure which illustrates the content of. The cursor display pattern table 6 stores a moving direction θ and a cursor display pattern corresponding to the moving direction θ in association with each other. The movement direction θ is incremented by a resolution obtained by dividing 2π by a step width n (a positive integer).

FIGS. 5B and 5B are views showing display examples of the cursor on the display 9.

Next, the operation of the cursor display system of the present embodiment thus constructed will be described.

When an interruption occurs from the mouse 1 at a constant time interval, the movement amount reading means 2 reads the movement amount (Δx, Δy) of the two-dimensional coordinates of the mouse 1 and stores it in the position coordinate storage area 8 the previous time. The current position coordinate (x, y) pointed by the cursor by the formulas x = x + Δx and y = y + Δy with reference to the position coordinate (x, y) of
And the present position coordinates (x, y) are stored in the position coordinate storage area 8 (step S10).

Next, the moving direction calculating means 3 calculates the moving amount (Δ
x, Δy) Moving distance z = {(Δx) ² + (Δ
y) ² } ^1/2 is calculated (step S11), and the moving distance z
And the default value k are compared (step S12).

If the moving distance z is equal to or larger than the predetermined value k, it means that the mouse 1 has been moved and operated within the range of operation error such as camera shake. Therefore, the moving direction calculating means 3 turns off the exception handling flag F. Then (step S13), the movement amount (Δ
x, Δy) based on the moving direction θ = arctan (Δy
/ Δx) is calculated (step S14).

Subsequently, the cursor display pattern selection means 4
Refers to the cursor display pattern table 6 to find the angle θ closest to the moving direction θ, obtains the cursor display pattern from the corresponding cursor display pattern column (step S15), and saves this cursor display pattern in the save area 7. Yes (step S16).

Next, the cursor display means 5 displays the cursor display pattern saved in the save area 7 on the display 9 so as to be the position of the position coordinate (x, y) stored in the position coordinate storage area 8. Display (Step S1
7). The coordinate conversion between the moving two-dimensional coordinate system of the mouse 1 and the two-dimensional coordinate system on the display 9 is automatically performed by the movement amount reading means 2 or the cursor display means 5.

If the movement distance z is less than the specified value k in step S12, it is possible that the mouse 1 has been moved within the range of the operation error. Therefore, the movement direction calculation means 3 sets the exception processing flag F to ON. It is determined whether or not (step S2
1) If the exception handling flag F is not ON, the exception handling flag F is turned ON (step S22), and the current movement amount (Δx, Δy) is stored in the movement amount (Δx ′, Δy ′) (step S22). (S23), control is transferred to step S17.

As a result, the cursor display means 5 sets the previously displayed cursor display pattern saved in the save area 7 to the position of the position coordinate (x, y) stored in the position coordinate storage area 8. It is displayed on the display 9 (step S17).

On the other hand, in step S21, the exception handling flag F
If is ON, the moving direction calculation means 3 performs step S2.
The amount of movement (Δx ′, since the start of exception processing after 1)
Δy ′) in the equations Δx ′ = Δx ′ + Δx and Δy ′ = Δ
y ′ + Δy is added (step S24), and the movement distance z ′ = {(Δx ′) ² + after the processing of step S21 and subsequent steps is started based on the movement amount (Δx ′, Δy ′).
(Δy ′) ² } ^1/2 is obtained (step S25).

Next, the moving direction calculating means 3 determines whether the moving distance z'is not less than the specified value k (step S2).
6) If the moving distance z'is smaller than the specified value k, the control is moved to step S17.

As a result, the cursor display means 5 sets the previously displayed cursor display pattern saved in the save area 7 to the position of the position coordinate (x, y) stored in the position coordinate storage area 8. It is displayed on the display 9 (step S17).

On the other hand, when the moving distance z'is larger than the specified value k in step S26, the moving direction calculating means 3 transfers the moving amount (Δx ', Δy') to the moving amount (Δx, Δy) ( Control is returned to step S27) and step S13.

After that, the moving direction calculating means 3 turns off the exception handling flag F (step S13), and the moving amount (Δ
The moving direction θ is calculated based on (x, Δy) (step S14).

Subsequently, the cursor display pattern selection means 4
Refers to the cursor display pattern table 6 to find the angle θ closest to the moving direction θ, obtains the cursor display pattern from the corresponding cursor display pattern column (step S15), and saves this cursor display pattern in the save area 7. Yes (step S16).

Next, the cursor display means 5 displays the cursor display pattern saved in the save area 7 on the display 9 so as to be the position of the position coordinate (x, y) stored in the position coordinate storage area 8. Display (Step S1
7).

In other words, according to the exceptional processing after step S21, whether the movement direction θ is changed when the movement distance z is small, or the movement of the mouse 1 is simply caused by an error (movement by the operator, etc.). Since it is unknown whether the distance is z, the cursor display can be made closer to the operability and visibility of the operator of the mouse 1 by displaying the previous cursor display pattern.

FIG. 5A shows a display example of the cursor when the moving direction θ is 225 °. When the user wants to see the display contents hidden under the display position of the cursor by the cursor in this way, the mouse 1 is changed in the moving direction again and moved to change the cursor display pattern as shown in FIG. 5B. This makes it possible to make the hidden display contents visible under the display position of the cursor.

In the above embodiment, the example in which the coordinate input device is the mouse 1 has been described, but it goes without saying that the present invention is similarly established even if the coordinate input device is a pointing device other than a mouse. .

[0031]

As described above, according to the present invention, the moving amount reading means for detecting the moving amount of the two-dimensional coordinates input from the coordinate input device, the moving direction calculating means for calculating the moving direction based on the moving amount, By providing the cursor display pattern selection means for selecting the cursor display pattern corresponding to the moving direction and the cursor display means for displaying the cursor display pattern on the display device, the display contents hidden under the display position of the cursor can be seen by the cursor. If desired, by operating the coordinate input device while changing the moving direction again, there is an effect that the display contents hidden under the display position of the cursor can be seen.

Further, within the range in which the movement distance is smaller than the default value, the cursor display pattern displayed last time is re-displayed so that the cursor is displayed in the range of the error in the operation of the coordinate input device (hand shake by the operator, etc.). By not changing the pattern, it is possible to prevent the cursor moving operation and the visual display from being separated from each other.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a cursor display system according to an embodiment of the present invention.

FIG. 2 is a flowchart showing processing of a cursor display system according to an embodiment of the present invention.

FIG. 3 is a diagram showing a method of obtaining a moving direction based on a moving amount in the cursor display system of the present embodiment.

4 is a diagram showing the contents of a cursor display pattern table in FIG.

5A is a diagram for explaining that the display contents are hidden under the cursor, and FIG. 5B is a portion hidden in FIG. 5A by rotating the cursor in the movement direction to display it. It is a figure which shows that is displayed.

[Explanation of symbols]

 1 Mouse 2 Movement amount reading means 3 Movement direction calculating means 4 Cursor display pattern selection means 5 Cursor display means 6 Cursor display pattern table 7 Save area 8 Position coordinate storage area 9 Display S10 Movement amount reading step S11 Movement distance calculation step S12 Movement distance / Specified value comparison step S13 Exception processing flag OFF setting step S14 Movement direction calculation step S15 Cursor display pattern determination step S16 Cursor display pattern save step S17 Cursor display step S21 Exception processing flag ON determination step S22 Exception processing flag ON setting step S23 Movement amount Storing step S24 Moving amount adding step S25 Moving distance calculating step S26 Moving distance / regulated value comparing step S27 Moving amount transferring step

Claims (3)

[Claims] 1. A moving amount reading means for reading a moving amount of two-dimensional coordinates input from a coordinate input device, and a moving direction calculating means for calculating a moving direction based on the moving amount read by the moving amount reading means. A cursor display pattern selection means for selecting a cursor display pattern corresponding to the movement direction calculated by the movement direction calculation means, and a cursor display means for displaying the cursor display pattern selected by the cursor display pattern selection means on a display device. A method for displaying a mouse cursor, which comprises: 2. The cursor display method according to claim 1, wherein the cursor display means redisplays the previously displayed cursor display pattern when the movement amount read by the movement amount reading means is smaller than a predetermined value. 3. The cursor display pattern selection means,
2. The cursor display method according to claim 1, wherein the cursor display pattern is determined by referring to a cursor display pattern table that stores the moving direction and the cursor display pattern in association with each other. [0001]