JPS6139120A - Three-dimensional track ball device - Google Patents

Abstract

PURPOSE:To easily control three-dimensional display operation by rotating respective three orthogonal axes X, Y, and Z around the centers of rotation, and leading parameters of rotation out by three rotation detecting devices which detect the respective quantities of rotation. CONSTITUTION:When a spherical part 1 is rotated as shown by an arrow Xr, a rotational component in the direction of the arrow Xr is detected by a rotation detecting device 2 and outputted as the 1st parameter of rotation. Further, when the spherical part 1 is rotated as shown by an arrow Yr, a rotational component in the direction of the arrow Yr is detected by a rotation detecting device 3 and outputted as the 2nd parameter of rotation. Furthermore, when the spherical part 1 is rotated as shown by an arrow Zr, a rotational component in the direction of the arrow Zr is detected by a rotation detecting device 4 and outputted as the 3rd parameter of rotation. The device which operates as mentioned above is used as an external input means to easily control three-dimensional display operation.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention provides a method for controlling three-dimensional image display, for example.
The present invention relates to a dimensional trackball device.

[Technical background of the invention and its problems] Generally, a trackball device is used to control image display, but conventional trackball devices are difficult to specify two-dimensional position and control display. It was sufficient to have a two-dimensional, original displacement function. However, in recent years, three-dimensional images have been displayed on displays, and since the displays are flat, even trackball devices that have conventional two-dimensional displacement functions cannot display three-dimensional images. It is possible to specify the position, but if the position can be specified along the three axes (X-axis, Y-axis, Z-axis) of a 3D image, it will be possible to perform operations that are compatible with human vision. Therefore, it is possible to improve the operability.

However, conventionally, a simple trackball device having a three-dimensional displacement machine t#,1 has not been provided.

[Object of the Invention] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a three-dimensional trackball device having a three-dimensional displacement function at a low cost.

[Summary of the Invention] The outline of the present invention for achieving the above object is to provide a three-dimensional track that has a spherical part that can rotate in any direction and that can output three types of parameters according to the rotation of the spherical part. In a ball device, the X-axis in space.

The first axis rotates about each of three orthogonal axes, namely the Y-axis and the Y-axis, and detects the amount of rotation of each axis.
．． Second. It is characterized by comprising a third rotation detection means.

[Embodiments of the Invention] Hereinafter, embodiments of the present invention will be described with reference to the present invention.

FIG. 1 is a perspective view showing the configuration of a three-dimensional trackball device which is an embodiment of the present invention, and FIG.
(b) and (c) are respectively plan views of the device shown in FIG.
They are a front view and a right side view.

In Figures 1 and 2 (a), (b), and (C), 1
is a spherical part that can be rotated in any direction by operator operation,
2.3.4 has three orthogonal axes in space, that is, the X-axis, Y-axis, and Y-axis, as centers of rotation, and by rotating in accordance with the rotation of the sphere 1, respectively. The first one that can output different parameters. Second. This is third rotation detection means. This first. Second. The third rotation detection means 2°3.4 is constructed as follows.

The first rotation detecting means 2, which is rotatable about the X-axis, is in contact with the periphery of the spherical portion 1 and is rotatable in accordance with the rotational component of the spherical portion 1 in the direction of arrow Xr force. A generator 2b that is capable of fixing the ring portion 2a at its center of rotation and outputting an electromotive force according to the rotation of the ring portion 2a.
It is composed of:

Further, the second rotation detecting means 3, which is rotatable about the Y-axis, is in contact with the periphery of the spherical portion 1, and is rotatable in accordance with the rotational component of the spherical portion 1 in the direction of the arrow Yrh. Na limbus 3
a, and a generator 3b which pivots the ring portion 3a at its center of rotation and is capable of outputting an electromotive force in accordance with the rotation of the ring portion 3a.

Furthermore, the third rotation detection means 4, which is rotatable about the Y-axis, is in contact with the periphery of the spherical portion 1, and responds to the force and the rotational component of the front 58 spherical portion 1 in the direction of the arrow Zrh. ``U It has a ring part 4a that can rotate, and a power generation fl14b that fixes the ring part 4a at its center of rotation and can output an electromotive force according to the rotation of the ring part 4a. It consists of

Next, the operation of the embodiment device having the above configuration will be explained.

When the ball part 1 is rotated in the direction of arrow xr in Fig. 1, this arrow
The rotation component in the r force direction is detected by the first rotation detection means 2 and outputted to the outside as a first rotation parameter. Furthermore, when the spherical portion 1 is rotated in the direction of the arrow Yr force in the figure, the motion component in the direction of the arrow Yr force is detected by the second rotation detection means 3 and outputted to the outside as a second rotation parameter. . Further, when the spherical portion 1 is rotated in the direction of arrow Zr in the figure, the rotation component in the direction of arrow 7r is detected by the third rotation detection stage 4 and outputted to the outside as a third rotation parameter. .

If the device of this embodiment, which operates in the same manner as 7-1, is used as an external input means, it is possible to easily control the three-dimensional image display.

For example, 1st. Second. The output of the third rotation detection means 2°3.4 is used as the X-axis and Y-axis of the pseudo three-dimensional display image.

If image data is rotated in correspondence with three orthogonal axes, namely the Y axis, the display will be as shown below.

The displayed image is, for example, a head Xl1 as shown in FIG. 3(a).
When the spherical part 1 is rotated in the direction of the arrow xrh as shown in FIG. 3(b), the head X-ray CT image 5 becomes the X-ray CT image 5 as shown in FIG. 4(a). Rotate around an axis. Furthermore, when the ball portion 1 is rotated in the direction of force indicated by the arrow Yr, the head X
The 15CT image 5 rotates around the Y axis as shown in FIG. 4(b). Similarly, when the spherical portion 1 is rotated in the direction of the arrow Zr, the head x m cr image 5 rotates around the Y axis as shown in FIG. 4(C).

It should be noted that the present invention is not limited to the above embodiments,
It goes without saying that modifications can be made as appropriate within the scope of the gist of the present invention.

1. of the device of this embodiment. Second. The third parameter, namely the first. Second. The coordinate system component to which the output of the third rotation detection means 2, 3.4 corresponds is determined by the relationship with, for example, an image processing device, etc., which is equipped with the device of this embodiment as an external input means. However, the present invention is not limited to the above embodiments.

As an example, for example, r, θ, 2 of the cylindrical coordinate system as shown in FIG. Second. A third parameter can also be made to correspond, and coordinates in a cylindrical coordinate system can also be easily specified.

1 in the above embodiment. Second. Third rotation detection means 2
, 3.4 are ring portions 2a and 3a, respectively.

4a and generators 2b, 3b, and 4b,
It is not limited to this configuration. The point is that each of the three orthogonal axes in the three-dimensional space is the center of rotation, and the spherical part 1
It is only necessary that it is possible to output different parameters by rotating in accordance with the rotation of . Further, the output form of the parameter may be either an analog signal or a digital signal.

[Effect of the Invention 1 According to the present invention detailed above, Section 1.12. A ball part with a simple configuration equipped with M3 rotation detection means. Three types of parameters can be set depending on the rotation, so
A three-dimensional trackball device having a three-dimensional displacement function can be provided at low cost.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the configuration of a three-dimensional trackball device which is an embodiment of the present invention, and FIG. 2(a). (b) and (c) are a plan view, a front view, a right side view of the apparatus shown in Fig. 1 and Fig. 3 (a), (b), and Fig. 4 (a), (b), ( c) is an explanatory diagram for explaining the control of three-dimensional image display using the device of this embodiment;
The figure is an explanatory diagram for explaining a modification of the above embodiment. DESCRIPTION OF SYMBOLS 1... Ball part, 2... First rotation detection means, 3...
- Second rotation detection means, 4...Third rotation detection means.

Claims (1)

[Claims] In a three-dimensional trackball device that has a spherical part that can rotate in any direction and can output three types of parameters according to the rotation of the spherical part, three orthogonal three axes, the X-axis, Y-axis, and Z-axis in space A three-dimensional trackball device characterized by comprising first, second, and third rotation detection means that rotate about each axis of the shaft as a center of rotation and detect the amount of each rotation.