JPS6238927A - Fixation system for drawing start point on touch panel - Google Patents

Abstract

PURPOSE:To select a drawing start point freely and accurately without any operation on a computer side by providing a means which displays a time elapse indication mark displaying the stop time of a pen pressed against a touch panel on a CRT screen and sets the drawing start point when the stop time exceeds a limit time. CONSTITUTION:When the pen of a panel control part 9 is pressed against the touch panel 10, a cursor K and a timer indication frame W are displayed on the screen of the CRT 7 at a corresponding point. While the pen is moved on the touch panel 10 so as to determine a drawing start point, the cursor K and indication frame frame W also move on the screen according to the motion of the pen. When the drawing start point is determined by stopping the pen at one point on the touch panel 10 for specific seconds, the indication frame W is reduced gradually. The pen is moved on the touch panel 10 after the indication frame W disappears to draw an image on the screen on the CRT 7.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a drawing start point fixing method in a touch panel.

[Prior Art] In the conventional tablet-type graphic drawing machine, the user presses an appropriate key on the computer, such as a shift switch, etc., to determine where on the CRT screen to start drawing. When the cursor appears clearly on the screen, move the cursor to the desired location, then release the key to apply drawing power to the CRTI-. It was like that.

[Problems with the prior art] In this type of conventional Yu/Nchinonanel, in order to fix the drawing starting point, it takes a lot of time to trace the brush on the panel L, and the specified keys on the computer side have to be pressed at the same time. I had to. Therefore, if the timing of releasing the key is incorrect, the drawing start point may deviate from the intended position and force, making it extremely troublesome to start drawing. Therefore, input work efficiency was poor.

[Objective of the Invention] This invention was made in view of two consecutive circumstances, and its purpose is to move the drawing start point to the intended position by operating only the touch panel side without operating the computer side. The purpose of this invention is to provide a method for fixing the drawing start point on a touch panel that can be accurately and freely fixed.

[Summary of the Invention] In order to achieve the object described in (-) of the present invention, when the touch panel is pressed with a brush or the like, a cursor and a timer 1 frame are displayed on the CRT screen 1Z. The main point is that when the brush is fixed at one point on the touch panel, the timer indication frame gradually shrinks, and when the brush is moved after erasing it, drawing can be done on the CRT screen 1.

[Configuration of Example] Hereinafter, one embodiment will be described with reference to the drawings.

In FIG. 1, l is a CPU (central processing unit),
The CPUI controls the operation of the entire system, which will be described later. C
A keyboard 2 for input is connected to the PUI, and the output signals of each key of the keyboard 2 are sent to the RAM (
random access memory) 3. Also ROM
(Read-only memory) 4 stores character generators and predetermined image patterns in advance, and keyboard 2
In response to the input, the corresponding data is called up by the CPUI and displayed on the screen of the CRT 7 via the display control section 5 and VRAM (video RAM) 6. A panel control section 9 is connected to the CPU 1, and a touch panel 10 such as a tablet or a digitizer is connected to the panel control section 9.

The panel control unit 9 includes a brush or the like for specifying a position on the touch panel 10, and when a point on the touch panel 101- is pressed with this brush, the X and Y position data are digitally detected. register 13
are memorized respectively.

The register unit 11 is connected to the CPU via a pass line for arithmetic processing of stored data, and is connected to the CPU via a pass line.
register 14, Xl register 15, Yl register 16,
N register 17, X2 register 18, Y2 register 19
It is equipped with The CPU also includes a cursor display control unit 21.
and a frame display control section 22 are also connected. The above X and Y values are given to the cursor display control section 21, and the cursor pattern retrieved from the ROM 4 is combined with these coordinate values and displayed at the X and Y positions on the CRT 7 screen. In this case, when the brush of the panel control unit 9 moves on the touch panel 10, the X register 12. The contents of Y register 13 also change and the CRT
The cursor position on 7 also moves according to the movement of the brush. A waiting time is specified in seconds and stored in the T register 14 from the keyboard 2 via the CPUI. Since the CPU also performs timekeeping processing using the program from ROM4,
For example, if the content of the T register 14 is T seconds, the CPU will change the value to T-1, or 0.5 seconds (T-0, 5).
) A subtraction count is performed every arbitrary second, such as every second. A predetermined number of dots is designated and stored in the N register 17 from the keyboard 2 via the CPUI. This number of dots is CRT
7 screen” represents the number of pixels, for example, X-N is a CRT
7 screen-1-(value of X)-displaying the cursor on the Nth dot, etc. Further, a predetermined number of dots, for example, 6 dots, is subtracted by the CPU from the value set in the N register 17 every -1 seconds or every 0.5 seconds.

The number of dots to be subtracted every several seconds is input in advance to the CPUI from the keyboard 2, or fixedly determined by the ROM 4. The set value of the T register 14 (number of seconds), the set value of the N register 17 (number of dots), and the number of dots to be subtracted every second can be entered in a program from the keyboard 2 depending on the operator's level of familiarity. Okay, RO in advance
Standard values may be set using M4. These variables are combined to measure the stop time of the brush like a timer. In this way, the Xl register 15 has X1=X-N which changes at each time, similarly the Yl register 16 has Y1=Y-N, and the x2 register 1B+, : has X2-
The frame coordinates of Y2=Y+N are stored in the x+N and Y2 registers 19, respectively. -1- frame coordinates (lf7Xl=X-
N, Yl=Y-N, X2=X+N, Y2=Y+N are given to the frame display control unit 22, and a frame display surrounded by these straight lines is calculated and displayed on the CR77 screen-1- via the VRAM6.
to be displayed. CPUI is set for more than a predetermined time, e.g. every 3 seconds.
The X and Y coordinate values recorded in the X register 12 and Y register 13 over 1- are sequentially stored in the memory of the VRAM 6. X stored in VRAM6 in this way,
The Y coordinate value is CB until there is an all clear from the CPUI.
It is constantly displayed on r7.

[Operation of the Embodiment] Next, the operation of the above embodiment will be explained with reference to the flowchart shown in FIG. 2 and FIG. 3.

First, 3 seconds is set in the T register 14 as the average familiarity level of drawing experience on the touch panel IO (step S
t). When a certain position on the touch panel toJ2 is pressed with the brush of the panel control unit 9, the CPU 1 selects the coordinate value X of the pressed point,
Y is read out and stored in the X register 2 and Y register 3, respectively (step S2). Next, in step S3, CBr
N=36 (the number of dots) is set in the N register 7, taking into account that the indication frame is neither too large nor too small for the pixels of the entire screen of 7, and the time limit. Then, CPU1 adds and subtracts N=36 to the above press point coordinates X and Y.X1=X-N Y1=Y-NX2=X+N
Perform Y2=X+N and set the value of Xl-X2 to
IX register 5 YX register 6, X2 register 8
, Y2 register 9 (step S4).

Based on these calculation results, the frame display control unit 22 generates a display frame W and displays it on the CBr 7 via the VRAM 6 as shown in FIG. 3(a).
A display frame W and a cursor K located at its center are displayed as shown (step S5). The 3 seconds in the T register 4 are counted down every 0.5 seconds, which is also an average speed (step S6). Next, if the brush moves and the cursor coordinates change (step S7), the CPU 1 returns to step Sl.

In other words, the indicator frame surrounding the cursor with the new press point coordinates is CBr.
7 will be displayed. On the other hand, if one point is pressed to stop and there is no change in the cursor coordinates, the process proceeds to step S8 and subtracts an average of 6 dots from N (=36), which also influences the stop limit time. The CPU checks whether the contents of the T register 14 have become 0 (3 seconds of the time limit), and if 3 seconds have not yet passed, returns to step S4 and restarts.
Calculate Y2. Similarly, this means reducing the indication frame W by 6 dots from both ends as shown in FIG. 3(b). On the other hand, if 3 seconds have elapsed, the process advances to step S10 and the indication frame W is erased from the screen of the CBr4 (Fig. 3 (C
)). The CPU then displays the cursor coordinates x, y and the x, y coordinates of a series of strokes drawn starting from that point in the VR.
It is stored in AM6 and displayed as a line drawing on CBr7 (step 5ll).

The CPU continues to monitor whether or not the brush of the panel control unit 9 leaves the plane of the touch panel 10.
Although it is in pressure contact with CBr7, while it is moving, the process returns to step Sll and the display of one stroke on CBr7 is continued. - When the old handwriting leaves the touch panel 10, the current drawing ends, and the next drawing starts from step Sl in the same manner as described above.

If the above operation is considered on the CR77 screen-hi in FIG. 3, it will be as follows. That is, when the touch panel IO is pressed with a brush or the like of the panel control unit 9, the CR corresponding to that position is pressed.
77, a cursor and a timer indication frame W are displayed on the screen as shown in FIG. 3(a). While the brush is being moved on the touch panel IO to determine the drawing opening point, the cursor K and indication frame W on the screen are also moved along the screen in accordance with the movement. While the cursor K is moving in this way, the indication frame W remains at its initial size, but when you stop the brush at a certain point on the touch panel 10 for a predetermined second to determine the drawing start point, the indication frame W remains at its initial size. W gradually decreases (Fig. 3(b)). After the indication frame W has been erased in this way, FIG. 3(C) shows. When a brush is traced on the touch panel 10, a corresponding image is drawn on the CR77 screen. Furthermore, if you move the brush on the touch panel 10 before the indication frame W is erased, the indication frame W returns to its initial size, and the cursor moves along with the CRT 7 screen -L until you stop the indication frame W. move.

In this way, you can determine the starting point of drawing just by looking at the 0177 screen and by operating only the touch panel IO side, without having to operate the computer side including the CPU, keyboard 2, etc., and draw at the place you want. can be determined accurately.

Note that the display of the stop time of the brush is not limited to the indication frame W, and a timer scale as shown in FIG. 4 may be displayed. In this case, press the brush on the touch panel,
[Screen] Display a band-shaped timer scale l on one side (Fig. 4 (a)), and after a few seconds, fill in the inside of this timer scale l (Fig. 4 (b)), and after a predetermined period of time, completely fill it out. Fill in the drawing start point ((C) in the same figure). On the other hand, if you move the brush on the touch panel before the limit maki period has elapsed, as shown in Figure (d), the timer scale I will return to its original state, and the cursor will still be in the selected state, corresponding to the brush movement. to move the cursor to screen -1-.

This can be done in any other way as long as it visually and intuitively displays the stoppage time of the brush, and various modifications can be made by programming the display program in advance.

[Effects of the Invention] As described in detail below, this invention displays a time elapsed display mark on the CRT screen to display the time when the brush stops when pressed on the touch panel 1x, and limits the stopping time. Since a means is provided to set the drawing start point after the time has elapsed, the drawing start point can now be selected freely and accurately without any operation on the computer side.

[Brief Description of the Drawings] Fig. 1 is a circuit diagram of an embodiment of the present invention, Fig. 2 is a flowchart for explaining the operation, and Figs. 3 and 4 are screen diagrams.
It is a figure which shows the display state of 1-. 1...CPU, 2...Keyboard, 3
...RAM, 4...ROM, 5...
...Display control unit, 6...VRAM, 7...
...CRT, 9...Panel control section. lO...Touch panel, 11...Register unit, 21...Cursor display control unit,
22... Frame display control unit, l... Timer scale, K... Cursor, W... Indication frame. Patent Applicant: Casio Computer Co., Ltd. CR Page 7) I Table of Contents Figure 3 CRT & Page Display of 4 People (Reed) Figure 4

Claims (1)

[Claims] In a drawing method for a touch panel including a central processing unit, a display unit, and a touch panel unit, a display control unit stores a stop position of a brush, etc. pressed on the touch panel and displays it on the display unit; a timer display control unit that measures the time when the press stops and displays the measured time graphically on the display unit; and when the time displayed graphically is elapsed for a predetermined time, the graphical display is transformed to draw the pressed position. A method for fixing a drawing start point in a touch panel, comprising a start point setting means for setting a start position.