JPS62154069A - Straight line input device using mouth - Google Patents

Abstract

PURPOSE:To automatically draw a straight line by providing a direction designating means, a start point designating means and a mouth for inputting data to a straight line forming means. CONSTITUTION:A mouth cursor is removed, an automatic line drawing mode on a picture of a CRT 8 is selected and the mouth 6 is moved, and then, mouth moving data 63 is inputted to a start point arithmetic part 21 and the position of the mouth cursor is calculated. Subsequently, when a left button of the mouth 6 is pressed a left button input 61 is inputted to the start point arithmetic part 21 through a CPU5, the position of the mouth cursor at that time is set to a start point data memory 22 as the start point of the straight lien and at the same time, the left button input 61 is inputted to an automatic line drawing part 3. Thereby, the automatic line drawing part 3 fetches the contents of the start point data memory 22 and a direction data memory 12 through the CPU5, forms straight line data from the start point decided by start point data towards the direction decided by direction data and writes in a picture data storage part 7.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a simple linear input method using a mouse.

[Prior art and its problems]

2. Description of the Related Art Graphic creation devices using a personal computer and a mouse are rapidly becoming popular as a means for easily creating accurate graphics.

When drawing a straight line using a conventional mouse, the most common method is to specify the start and end points on the CRT screen using the first button of the mouse, and then press the second button to automatically draw the line. It is true. There is also a method of drawing a straight line from the current cursor position along the path moved by the mouse.

However, in the case of the conventional method described above, it is difficult to draw horizontal lines and vertical lines accurately, and similarly, it is difficult to draw many parallel lines. In addition, when drawing many straight lines in the same direction, the method of specifying the start and end points as in the first conventional method is cumbersome to operate, and the second conventional method requires drawing the straight lines themselves. The problem was that it was difficult.

[Purpose of the invention]

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned problems, it is an object of the present invention to provide a straight line input device using a mouse that can automatically draw a straight line simply by specifying the direction and starting point of the straight line using the mouse.

[Key points of the invention]

In order to achieve the above object, the present invention includes a direction specifying means (1) and a starting point specifying means (2) for specifying the direction and starting point of a straight line using a mouse (6), and thereby automatically moving from a predetermined starting point to a predetermined direction. Straight line creation method for drawing straight lines (3, 4>
and has. At this time, automatic line drawing means (3) that automatically draws a straight line until it intersects with other straight line data or touches one end of the screen is provided as the first straight line creation means.

In addition, as a second straight line creation method, a line drawing method that draws a straight line at a constant speed while holding down the first button of the mouse, and deletes the straight line in the opposite direction at a constant speed while holding down the second button. Line erasure means (4) are provided.

[Embodiments of the invention]

Hereinafter, embodiments of the present invention will be described in detail.

FIG. 1 is a block diagram of a linear input device according to the present invention. c.
pus is left button manual power 61 from mouse 6, right button manual power 62. and mouse movement data 63, and selectively selects the direction specifying unit 1. Starting point specification part 2. It is output to the automatic line drawing section 3 or the line drawing/erasing section 4. The direction specifying section 1 is constituted by a direction calculating section 11 and a direction data memory 12. The direction calculating section 11 creates direction data through mouse input via the CPU 5 and stores it in the direction data memory 12. The contents of the direction data memory 12 are output to the CPU 5 at any time. The starting point specifying section 2 is composed of a starting point calculating section 21 and a starting point data memory 22, and the starting point calculating section 21 is composed of a CP
Start point data is created by mouse input via U5 and stored in the start point data memo IJ22. Starting point data memory 2
The contents of 2 are output to the CPU 5 at any time. Automatic line drawing section 3
The line drawing/line erasing section 4 creates straight line data while checking the contents of the screen data storage section 7 via the CPU 5, and outputs it to the same storage section. Further, the CPU 5 has a screen data storage section 7.
The contents are displayed on the CRT 8 at any time.

Next, the operation of the linear input device having the above configuration will be explained. First, the operation of specifying the direction of a straight line will be explained. CRT
Since a mode selection screen is displayed on the screen of 8 at any time, move the mouse cursor to select the direction designation mode. As a result, an arrow indicating the 3 o'clock direction is displayed in a circle on the screen of the CRT 8, as shown in FIG. 2 (al).

With this direction as a default, by first pressing the left button of the mouse 6, the left button manual input 61 is input to the direction calculation unit 11 via the CPU 5. As a result, the direction calculation section 11 creates direction data such that the arrow moves clockwise by 5 degrees each time the left button is pressed once, and sets it in the direction data memory 12. The contents of the direction data memory 12 are output on the screen of the CRT 8 at any time via the CPU. That is, each time you press the left button of the mouse 6, the arrow on the screen rotates 90 degrees clockwise as shown in Figure 2 (bl).Next, by pressing the right button of the mouse 6, The human power 62 passes through the CPU 5 to the direction calculation section 11.
and move clockwise 2 to 3 degrees each time you press the right button.
Direction data is created so that the arrow moves in degrees, and is set in the direction data memory 12. As a result, the arrow on the screen rotates by a small angle as shown in FIG. 2(C). By the above operation, any direction can be quickly specified using the mouse 6. Note that if the left button is pressed in a location where the direction of the arrow is other than the up, down, left, or right direction, the arrow will move to point in the up, down, left, or right direction closest to the clockwise direction.

That is, for example, if the left button is pressed when the arrow is pointing in the 4 o'clock direction, the arrow will point in the 6 o'clock direction.

Next, the operation of drawing a straight line will be explained. First, assume that the automatic line drawing mode on the screen of the CRT 8 is selected by moving the mouse cursor. When the mouse 6 is moved in this state, the mouse movement data 63 is input to the starting point calculation unit 21 via the CPU 5, and the position of the mouse cursor is calculated. Next, press the left button of mouse 6. Left button manual 6
1 is input to the starting point calculation unit 21 via the CPU 5, and the position of the mouse cursor at that time is set in the starting point data memory 22 as the starting point of the straight line. At this time, the left button 61 from the mouse 6 is simultaneously input to the automatic line drawing section 3 via the CPU 5. As a result, the automatic line drawing section 3
The contents of the starting point data memory 22 and the direction data memory 12 are taken in through the starting point data memory 22 and the direction data memory 12, and straight line data is created from the starting point position determined by the starting point data in the direction determined by the direction data, and is written into the screen data storage section 7. At this time, the contents of the screen data storage section 7 are monitored via the CPU 5, and the created straight line data is displayed at the position where it intersects with other straight line data as shown in Fig. 3 (al), or as shown in Fig. 1b. The end point is automatically set at the position touching one edge of the screen, and the creation of the straight line is finished. This operation is displayed on the CRT 8 from the screen data storage section 7 via the CPU at any time. FIG. 4 shows an example using the above straight line creation function. First, use the box creation function to create the frame shown at A in FIG. 4(a). After that, the direction of the straight line is set in the same figure (
The direction is 3 o'clock as shown in b). Next, select the automatic line drawing mode and use the mouse 6 to draw each point A to A in the figure (a).
By pressing the left button at the work position, a horizontal line is automatically drawn to the rightmost straight line, allowing you to easily create a table.

Next, suppose that after the direction specifying operation, the line drawing/erasing mode is selected with the mouse cursor on the screen of the CRT 8. When the mouse 6 is moved in this state, the position of the mouse cursor at the time the left button of the mouse 6 is pressed is set in the starting point data memory 22 as the starting point of the straight line, as in the automatic line drawing mode. At this time, mouse 6
The left button human power 61 from
Input it to the line eraser section 4. As a result, the line drawing/erasing unit 4 takes in the contents of the starting point data memory 22 and the direction data memory 12 via the CPU 5, and creates straight line data at a constant speed from the starting point position determined by the starting point data in the direction determined by the direction data. The screen data storage unit 7 then writes the data to the screen data storage unit 7.

This operation continues as long as the left button of mouse 6 is pressed. On the other hand, if you press the right button of mouse 6,
The line drawing/line erasing unit 4 deletes the straight line data written in the screen data storage unit 7 in the opposite direction from the current end point position at a constant speed. This action allows you to easily and freely draw many parallel lines. Note that the above operation is performed from the screen data storage section 7 to the CRT 8 via the CPU 5.
displayed from time to time.

As described above, by combining the direction designation mode and the automatic line drawing mode or the line drawing/erasing mode, it becomes possible to easily draw many straight lines in any direction. or,
By selectively combining the present invention and the conventional method, it becomes possible to perform linear input that is even more user-friendly.

〔Effect of the invention〕

According to the present invention, it is possible to easily draw many parallel lines just by changing the starting point. Also, since the direction can be set in degrees, horizontal and vertical lines can be drawn accurately. Furthermore, since you can set any angle, you can combine it with the line drawing/erasing mode to make it easier to draw 3D figures. In addition, the automatic end point setting function in the automatic line drawing mode makes it easy to draw parallel lines of the same length beautifully, which is very effective for creating tables.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a linear input device according to the present invention, FIG. 2 is an explanatory diagram of direction designation operation, and FIGS. 3 and 4 are explanatory diagrams of operation in automatic line drawing mode. DESCRIPTION OF SYMBOLS 1...Direction specification part, 2...Start point specification part, 3...Automatic line drawing part, 4...Line drawing/line erasing part, 5...cpu. 6...Mouse, 7...Screen data storage section, 8...CRT. DESCRIPTION OF SYMBOLS 11... Direction calculation part, 12... Direction data memory, 21... Starting point calculation part, 22... Starting point data memory. Patent applicant: Casio Computer Co., Ltd. Figure 1 (b) Figure 2 (CI) Figure 3

Claims (1)

[Claims] 1) Direction specifying means (1) for specifying the direction of the straight line, starting point specifying means (2) for specifying the starting point of the straight line, screen data storage means (7), and the screen data storage means Line creating means (3, 4) for creating straight line data starting from the position specified by the starting point specifying means and in the direction specified by the direction specifying means; the direction specifying means; the starting point specifying means; and a mouse (6) for inputting data to the straight line creation means. 2) The straight line creation means creates straight line data on the screen data storage means from the starting point position in the direction until it intersects with other straight line data or touches one of the left, right, top, and bottom edges of the screen. Automatic line drawing means (3
) A linear input device using a mouse according to claim 1. 3) The straight line creation means creates straight line data on the screen data storage means from the starting point position toward the direction at a predetermined speed while the first button of the mouse is pressed; While the button is pressed, draw a line to delete straight line data at a predetermined speed from the end point of the current straight line data in the opposite direction to the above direction.
A linear input device using a mouse according to claim 1, characterized in that it is constituted by line erasing means (4).