JPH0778262A - Ruled line input device - Google Patents

Abstract

PURPOSE:To input and display a ruled line by determining a line kind by the handwriting operation by an input pen by reading a coordinate when a pen up state is discriminated and discriminating whether or not either one of line kind of setting codes is plotted by the input pen based on each coordinate of the moving locus in a prescribed range from a pen down time. CONSTITUTION:When a pen down state is discriminated in a step S3, the coordinate of the pen down fetched in a step S1 is stored in a buffer for start point coordinate save in a step S4 and a pen drag state where an input pen is moved is waited. When the pen drag state is discriminated in a step S5, each coordinate of the moving locus of the input pen is successively fetched and is stored in a work, the coordinate at the time of a pen up state is temporarily stored in a buffer for start point coordinate save in the step S5, and each stored coordinate data is read in a step S9. In the step S9, a handwriting recognition is performed to the read coordinate data and the line kind is set when line kind set code is recognized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ruled line input device which can be applied to an information processing device such as a Japanese word processor of a type in which handwritten data can be input to an input section with an input pen.

[0002]

2. Description of the Related Art Conventionally, as means for inputting ruled lines in an information processing apparatus of this type, a grid pattern is formed in a writing area of an input section of a display-integrated tablet in which an input section and an output section are formed on the same screen. When a large number of separated virtual frames are set and the movement of the input pen between at least two virtual frames is detected by the position information of the input pen, the width of one virtual frame is the unit of ruled line. There is a character recognition device (see Japanese Patent Laid-Open No. 2-118713) that displays a ruled line between both virtual frames as the length.

On the other hand, as a means for inputting and displaying ruled lines without using an input pen, after moving a graphic cursor on the screen to a position which is an intersection of a plurality of ruled lines by operating a mouse, the cursor position is moved to a point key. Replace the intersection of each ruled line you want to input with a ruled line mark, and move the graphic cursor to the position of the desired line type on the line type selection screen. An automatic ruled line drawing method (Japanese Patent Laid-Open No. 60-130792) is devised in which a ruled line is drawn between each of the ruled line marks with the selected line type by pressing.

[0004]

The former ruled line input means has an advantage of being able to input and display a straight ruled line regardless of hand shake when handwriting a ruled line with an input pen, but the width of one virtual frame is Since the unit length is used, there is a disadvantage that ruled lines other than horizontal ruled lines and vertical ruled lines and ruled lines of arbitrary length cannot be input and displayed. Further, when the line type such as the solid line or the broken line is changed, it is necessary to perform an operation different from the ruled line input operation by the input pen, for example, the line type selection by the key input operation of the keyboard, which makes the operation complicated. On the other hand, when the mouse operation by the ruled line input means is replaced with the input pen, the same problem as described above occurs.

Therefore, the present invention is to provide a ruled line input device capable of determining a line type by a series of handwriting operations for inputting ruled lines with an input pen and inputting and displaying various ruled lines of arbitrary length. This is an issue.

[0006]

The present invention has a ruled line input device configured as follows as a technical means for achieving the above-mentioned problems. That is, in a ruled line input device for recognizing and inputting a ruled line drawn by handwriting of an input pen on an input unit configured on the same screen as the display unit, a pen-down state in which the input pen is in contact with the input unit, the pen is A pen state determination unit that determines whether the pen is in a drag state in which the pen moves in contact with the input unit or a pen-up state in which the pen is separated from the input unit, and the pen state determination unit determines the state. When the pen-up state is discriminated by the coordinate state storage means for sequentially storing the coordinates of the locus of movement of the input pen on the input section from the pen-down state to the pen-up state to the pen-up state, And each of the coordinates stored in the coordinate storage means is read, and whether any of a plurality of preset line type setting codes is drawn by the input pen. Code recognition means for discriminating based on each coordinate of the movement locus within a predetermined range from the time of pen down, and the starting point is the coordinates in the pen down state with the line type recognized by the code recognition means or the line type currently specified when not recognized. And a ruled line displaying means for displaying a ruled line whose end point is the coordinate in the pen-up state on the display section.

[0007]

In this ruled line input device, a series of handwriting operations are performed in which the input pen is moved to the end point of the ruled line as it is after the input pen has been contact-moved to draw the desired line type setting code at the starting point of the ruled line. It is possible to set the line type and input and display a wide variety of ruled lines in any direction with any length connecting the start point and the end point.

Further, for example, when a frame or a table is input and displayed by a plurality of ruled lines of thick solid lines, if the line type setting code of the thick solid lines is first input once, the ruled lines are bent at right angles. After uploading, you can pen down to the same place again and input handwritten ruled lines continuously.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described in detail below with reference to the drawings. In FIG. 1 showing a block configuration of an embodiment of the present invention, the central processing unit (1) is R
The control program stored in the OM (3) is executed to control the entire apparatus. The data of the processing result is temporarily stored in the RAM (2) that stores various data, and the data is displayed. The data is displayed on the display device (6) via the controller (7) and is printed out from the printer (5) via the printer controller (4).

The input section is a display-integrated tablet integrally provided on the same screen as the display section of the display device (6), and information handwritten with the input pen (8) is input to this input section. It can be displayed on the display unit of the display device (6) and input. That is, the pen interface (9)
Is a pen-down state in which the input pen (8) is in contact with the tablet, a bend drag state in which the input pen (8) is moving in contact with the tablet, a pen-up state in which the input pen (8) is separated from the tablet, and In addition to discriminating which one of the above-mentioned unused states, the coordinate on the screen with which the input pen (8) is in contact is discriminated, and the type data of that state and the coordinate data on the screen are determined. It is converted and input to the central processing unit (1). Key input using the keyboard (10) is a key interface (11)
Is converted into a predetermined key code and input to the central processing unit (1). The floppy disk (12) and the IC card (14) are respectively a floppy disk controller (13) and an IC card controller (1
Data is loaded and saved under the control of 5).

Next, the operation of the above embodiment will be described with reference to the flowchart of FIG. Which of the above-mentioned four states the input pen (8) is in is detected and the data is taken in (step S1). First, it is judged from the taken-in data whether or not it is in an unused state (step S2). ), If it is unused, wait for the pen to go down,
If it is determined that the pen is in the pen-down state (step S3), the pen-down coordinates fetched in step S1 are stored in the starting point coordinate save buffer (step S4).
Next, it waits for the input pen (8) to move to the pen drag state.

When it is determined that the pen-drag state is present (step S5), steps S1 to S3 and step S3 are performed until the next pen-drag state, that is, the pen-up state is determined (step S5). By repeating the loop of steps S5 and S6, each coordinate of the movement locus of the input pen (8) is sequentially captured in step S1 and stored in the work (step S6). Next, when it is determined that the pen-up state is set (step S5),
The coordinates in the pen-up state fetched in step S1 are temporarily stored in the end point coordinate save buffer, and then each coordinate data stored in the work is read (step S9).

Subsequently, handwriting recognition is performed on the read coordinate data to determine whether or not the line type setting code can be recognized (step S9). The contents will be described with reference to FIGS. 3 to 6. As the line type setting code, for example, FIGS. 3 (a) to 3 (f) or 5 (a) to
The shape as shown in (f) is preset and stored. In both figures, (a) is a thick solid line, (b) is a thin solid line, (c) is a thin wavy line, (d) is a thick wavy line, (e) is a double line, and (f) is a broken line type. It is a setting code, and any line type setting code has a shape in which the start point and the end point of the code are substantially the same point.

As a handwriting recognition method for each line type setting code shown in FIG. 3, as shown in FIG. 4 (a), the coordinates of the pen-down start point (A) are read out, and ± is read from this start point (A).
The range indicated by the broken line of n dots is the code end point recognition range (B)
Then, by sequentially searching the stored coordinates of the movement locus of the input pen (8) indicated by the one-dot chain line, the point where the movement locus of the input pen (8) again enters the code end point recognition range (B). Code recognition is performed by obtaining the coordinates (C) and verifying the coordinates of the start point (A) and the code end point (C) with the line type setting code of FIG. 3 in the existing gesture recognition logic.

On the other hand, as a handwriting recognition method of each line type setting code shown in FIG. 5, the movement locus from the starting point (E) to the movement locus of the input pen (8) shown by the one-dot chain line in FIG. Coordinates are sequentially searched, and the gesture recognition logic performs collation with the line type recognition code, and when the collation with the line type setting code is obtained, the coordinate is recognized as the line type setting code.

When the line type setting code is recognized as described above, the line type of the recognized line type setting code is set (step S10). For example, "bold solid line" in FIG. 4 and "double line" in FIG. 6 are set as ruled line types. Finally, the coordinates between the start points (A) and (E) stored in the start point coordinate save buffer and the coordinates between the end points (D) and (F) stored in the end point coordinate save buffer are shown in FIG. Or, as shown in FIG. 6 (b),
The desired ruled line is automatically input and displayed by connecting with the set thick solid line or double line type.

On the other hand, when the line type setting code cannot be recognized, the line type designated up to that point is set again (step S11). Therefore, for example, in the case of inputting and displaying a frame or a table with a plurality of thick solid lines, if the thick solid line type setting code is entered once, after pen-up is performed at each position where the ruled lines are bent at right angles. , It is possible to continuously handwrite ruled lines by pen-down to the same place again.

In this ruled line input device, as shown in FIG. 4 (b) or FIG. 6 (a), the pen is moved down to the starting point of the ruled line, and then the input pen (8) is moved so as to draw a line type setting code. , Input pen as it is to the end of the ruled line (8)
By simply performing a series of handwriting operations for moving, the line type can be set, and a wide variety of ruled lines in any direction with any length connecting the start point and the end point can be input and displayed.

[0019]

As described above, according to the ruled line input device of the present invention, after pen-down to the starting point position of the ruled line to be input and displayed, the input pen is contact-moved so as to draw a desired line type setting code, and then, as it is. By simply performing a series of handwriting operations to move the input pen to the end of the ruled line, you can set the line type and operate a wide variety of ruled lines in any direction with any length connecting the start point and end point. Can be automatically input and displayed.

Further, for example, when a frame or table is input and displayed by a plurality of thick solid line ruled lines, if the thick solid line type setting code is first entered once, a pen is drawn at each position where the ruled line is bent at a right angle. There is a great advantage that the ruled lines can be continuously handwritten and input by pen-downing to the same place again after the input.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a flowchart of a functional process of the same.

3A to 3F are diagrams showing preset line type setting codes of the same.

4A to 4C are explanatory diagrams showing a procedure for inputting and displaying a ruled line with the line type of FIG. 3A.

5A to 5F are diagrams showing other examples of the previously set line type setting code.

6A and 6B are explanatory diagrams showing a procedure of inputting and displaying a ruled line with the line type of FIG. 5E.

[Explanation of symbols]

 1 central processing unit 2 RAM 6 display device 8 input pen 9 pen controller

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI Technical display location G06K 11/18 G06T 11/60 7315-5L G06F 15/20 547 A

Claims (1)

[Claims] 1. In a ruled line input device for recognizing and inputting a ruled line drawn by handwriting of an input pen to an input unit configured on the same screen as the display unit, a pen-down state in which the input pen is in contact with the input unit, A pen state determination unit that determines whether the pen is in a drag state in which the pen is in contact with the input unit or a pen-up state in which the pen is separated from the input unit, and a pen state determination unit. The pen-up state is discriminated by the coordinate storage means for sequentially storing the coordinates of the locus of movement of the input pen on the input portion from the determined pen-down state to the pen-up state to the pen-up state. At this time, each coordinate is read out by the coordinate storage means and any one of a plurality of preset line type setting codes is drawn by the input pen. Code recognition means for determining whether or not the pen is down based on each coordinate of the movement trajectory within a predetermined range, and a line type recognized by the code recognition means or a line type currently specified when not recognized in the pen down state. A ruled line input device comprising: ruled line display means for displaying on the display unit a ruled line having coordinates as a starting point and coordinates at a pen-up state as an ending point.