JPH01283621A - Coordinate input system - Google Patents

Abstract

PURPOSE:To use a coordinate input device of a low resolution, and also, to miniaturize the coordinate input device by providing two kinds of input means of a regular input and a fine input and displaying an inputtable range by a rectangular frame on a display screen of a display device in the case of the fine input. CONSTITUTION:In case of switching a regular input to a fine input, it is switched by picking an icon for its switching. An a means for informing a corresponding varia tion in a corresponding relation of a display screen coordinate of a display device 1 and an input device coordinate of a coordinate input device 5, to an operator, a rectangular frame is displayed on the display screen of the display device 1 so that a pointer (cursor) becomes the center. At this time point, the corresponding relation of the input device coordinate of the coordinate input device before that time and the display screen coordinate of the displace device 1 is switched to the corresponding relation of the input device coordinate of the coordinate input device 5 and the rectan gular frame on the display screen of the display device 1. In such a way, a linear graphic in the rectangular frame on the display screen of the display device 1 can be picked with high accuracy, the coordinate input device of a low resolution can be used, and also, the coordinate input device can be miniaturized.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a coordinate input device used in a display device.

[Prior Art] FIG. 4 is a block diagram showing the configuration of a conventional coordinate input device. In the figure, 1 is bit map memory, CR
2 is a display device including a T-display, etc.; 2 is a microprocessor; 1 is a processor including a memo program; 3 is a coordinate input device, such as a digitizer;
er).

FIG. 5 is a flowchart showing the operation of the coordinate input device of FIG. 4.

Next, the operation of the above conventional coordinate input device will be explained. In response to an input instruction from the coordinate input device 3, the processing device 2 performs calculations to convert the x, y coordinate data read from the coordinate input device 3 into display screen coordinates of the display device l,
Display a pointer (cursor) at the converted coordinate position.

The control operation of the coordinate input device as described above is shown in the flowchart of FIG.

[Problems to be Solved by the Invention] Since the conventional coordinate input device described above is configured as described above, the coordinate input device 3 requires a certain degree of coordinate accuracy in order to start the icon (9 figures in the picture). However, in order to pick figures such as straight lines in figure processing, it is necessary to increase the coordinate accuracy of the coordinate input device 3, and for this reason, the coordinate input device 3 is large. Therefore, there were problems such as being expensive.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a coordinate input method that allows the use of a low-resolution coordinate input device and also allows the coordinate input device to be made compact.

[Means for Solving the Problems] The coordinate input method according to the present invention provides two types of input means, normal input and fine input, and in the case of fine input, the possible input range is displayed in a rectangular frame on the display device. It is displayed on the display screen.

[Operation] The coordinate input method in this invention has two types of input means, normal input and fine input. In the case of fine input, by switching between the two types of input means, fine input of figures etc. is input into a rectangular frame. to display it on the display screen of the display device.

[Embodiment] FIG. 1 is a block diagram showing the configuration of a coordinate input device that is an embodiment of the present invention. In the figure, 1 is a display device including a bit map memory, a CRT display, etc.
4 is a microprocessor.

A processing device includes a memory, a program, etc., and 5 is a low-resolution coordinate input device, such as a digitizer.

Figure 2 is a flowchart 1 showing the operation of the coordinate input device in Figure 1, and Figure 3 is the coordinate relationship between the display screen and digitizer in the case of normal input and fine input in the coordinate input device in Figure 1. FIG. 3(a) shows the case of normal input, and FIG. 3(b) shows the case of fine input.

Next, the operation of the coordinate input device which is an embodiment of the present invention will be described. To pick an icon (picture 9 shape) with the small and low resolution coordinate input device 5,
The coordinate input device 5 can be used satisfactorily because it does not require much coordinate accuracy. However, in order to pick a figure such as a straight line in figure processing, it is necessary to combine the display screen coordinates of the display device 1 and the input device coordinates of the coordinate input device 5. It is necessary to change the correspondence personnel. Here, coarse input such as picking a normal icon is called normal input, and picking a straight line figure is called fine input.

The normal input process is the same as that of the conventional device, so its explanation will be omitted.

To switch from normal input to fine input, click the switch icon. As a means of informing the operator of a change in the correspondence between the display screen coordinates of the display device l and the input device coordinates of the coordinate input device 5, the display screen of the display bag al is displayed so that the pointer (cursor) is centered on the rectangular frame. Display above. At this point, the correspondence relationship between the input device coordinates of the coordinate input device 5 and the display screen coordinates of the display device 1 up to now can be compared to the input device coordinates of the coordinate input device 5 and the rectangular frame on the display screen of the display device l. Switch to the corresponding relationship. This results in
A straight line figure within a rectangular frame on the display screen of the display device 1 can be accurately surprised. The control operation of the coordinate input device as described above is shown in the flowchart of FIG.

In the above embodiment, the coordinate input device 5 was described as a digitizer, but it may also be used as a mouse, and the same effects as in the above embodiment can be obtained.

[Effects of the Invention] According to the coordinate input method of the present invention, two types of input means, normal input and fine input, are provided, and in the case of fine input, the possible input range is defined by a rectangular frame. Since the display is configured to be displayed on the display screen of the display device, a low-resolution coordinate input device can be used, and the coordinate input device has the excellent effect of providing a highly accurate coordinate input device that can be configured compactly and at low cost. It is something that plays.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a coordinate input device that is an embodiment of the present invention, FIG. 2 is a flowchart showing the operation of the coordinate input device shown in FIG. 1, and FIG. 3 is a block diagram showing the configuration of the coordinate input device shown in FIG. 1. Fig. 4 is a block diagram showing the configuration of a conventional coordinate input device, and Fig. 5 is a diagram showing the coordinate relationship between the display screen and the digitizer in the case of normal input and fine input. 3 is a flowchart showing the operation of the device. In the figure, l...display device, 2...processing device, 3
...Coordinate input device, 4...Processing device, 5...
It is a coordinate input device. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Agent Masuo Oiwa 1st
Figure 2 Figure 3 @ 3 G (a) (b) 4th
@

Claims (1)

[Claims] In a coordinate input device using a display device and a coordinate input device, the coordinate relationship between the display screen of the display device and the coordinate input device is switched according to an operator's instruction, and the range corresponding to the coordinate input device in fine input is displayed in a rectangular frame. A coordinate input method characterized by comprising means for displaying on a screen.