JPH05173706A - Plotting input device - Google Patents

Abstract

PURPOSE:To display in real time an output approximating the pressure of handwriting by providing a pressure sensing means to sense pressure applied to the tip of a plotting device when inputting a coordinate point. CONSTITUTION:While holding a main body 1 of the plotting input device by a hand, a ball 2 is abutted onto an object to be read, rolled between read coordinates and moved. With the rotation of the ball 2, a roller 3 is rotated as well and by extracting the rotation as rotating components in X and Y directions, the moving amount of the ball 2 in the X and Y directions is detected. An operator operates a switch 5 as needed and the control of fix/ cancel or the like is executed to a central processing unit (CPU). In this case, a pressure sensor 6 detects the pressure pressing the ball 2 onto the object to be read by the hand of the operator holding the device, and the information is transmitted to the CPU. Corresponding to the pressure, the CPU displays line width on a display device. Therefore, the desired line width can be obtained by arbitrarily changing the pressure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drawing input device such as a pointing device used by connecting to an information processing device.

[0002]

2. Description of the Related Art With a mouse as a conventional pointing device, only position information and switch information are sent to an information processing device, and when changing a line type or line width, a menu of the line type and line width is specified. , Of which you can select the desired line width.

[0003]

As described above, in the conventional pointing device, since the line width menu is activated to change the line width, there is a problem that the operation becomes complicated and takes time.

The present invention solves the above problems,
To provide a drawing input device for displaying a desired line width on a display device so as to capture the pressure applied to the tip of the device in real time according to the operator's feeling and obtain the line width according to the pressure applied to the brush tip. With the goal.

[0005]

In order to achieve the above object, the present invention comprises a pressure sensing means for sensing the pressing force applied to the tip of the drawing input device when inputting coordinate points.

[0006]

According to this structure, the pressing force applied to the tip of the drawing input device at the time of inputting the coordinate points is detected by the pressure sensing means, and a signal corresponding to the pressing force is sent to the central processing unit. The line width can be arbitrarily changed depending on how much force is applied to the device, and an output close to a handwriting can be displayed on the display device in real time.

[0007]

Embodiments will be described in detail below with reference to the drawings. FIG. 1 shows a drawing input device according to an embodiment of the present invention, in which 1 is a drawing input device main body and 2 is a main body 1 thereof.
A ball placed at the tip of the ball that can rotate in either direction,
A pair of rollers 3 contacts the ball 2 and rotates along with the rotation of the ball, and two-dimensionally decomposes the rotation of the ball into rotational components in the X and Y directions. The encoder detects the amount of movement in the Y direction, and the detection signal is sent to the central processing unit. A switch 5 is used by the operator to control the central processing unit such as confirmation, cancellation and selection.

Reference numeral 6 denotes a pressure sensor, which is used when the operator holds the drawing apparatus main body 1 in his hand and presses the ball 2 onto a desk or the like.
The magnitude of the pressing force is detected by receiving the reaction force of the pressing force.
Since the output of the pressure sensor 6 is an analog value, it is converted into a digital value by the analog / digital converter 7 and sent to the central processing unit.

FIG. 2 is a block diagram showing each part of FIG. 1. 11 is a drawing input device, 12 is a movement amount detecting part including a ball 2, a roller 3 and an encoder 4, and 13 is a switch 5. A switch unit, 14 is a pressure detection unit including a pressure sensor 6 and an analog / digital converter 7, 15 is a central processing unit, and 16 is a display unit.

Next, the operation of this embodiment will be described. The operator holds the drawing apparatus main body 1 in his / her hand and brings the ball 2 into contact with the object to be read, and rolls and moves between the reading coordinates. As the ball 2 rotates, the roller 3 also rotates and is taken out as a rotational component in the X direction and the Y direction.
The amount of movement in the Y direction and the Y direction is detected. Further, the operator operates the switch 5 as necessary to control the central processing unit such as confirmation / cancellation.

Here, the pressure sensor 6 detects the pressing force with which the operator presses the ball 2 on the object to be read with the hand holding the drawing input device, and sends the information to the central processing unit 15. The central processing unit causes the display device to display the line width corresponding to the pressure.

In the present embodiment configured as described above, a desired line width can be obtained by arbitrarily changing the pressing force applied to the tip of the drawing input device at the time of inputting coordinate points, and an output similar to a handwriting can be obtained in real time. Can be displayed on the display device.

[0013]

As described above, according to the present invention,
The line width can be changed in real time without the complicated operation of activating the line width menu to change the line width as in the past, and the line width can be changed by the operator's force. Since it can be arbitrarily changed, it is possible to display an output close to that of a handwriting on the display device.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a drawing input device according to an embodiment of the present invention.

FIG. 2 is a block diagram of the drawing input device.

[Explanation of symbols]

1 ... Drawing input device main body, 2 ... Ball, 3 ... Roller, 5 ... Switch, 6 ... Pressure sensor, 7 ... Analog / digital converter.

Claims (1)

[Claims] 1. A movement amount detection unit for detecting a movement amount in the vertical direction and a horizontal direction, and a switch unit for transmitting a control signal such as confirmation / cancellation to a central processing unit, and an operator's hand. A drawing input device such as a pointing device that is held and operated, wherein pressure sensing means for sensing the pressing force applied to the tip of the drawing input device when inputting coordinate points is provided, and a line width corresponding to the pressing force is obtained. Drawing input device.