JPH0744310A - Graphic input device - Google Patents

Abstract

PURPOSE:To enable a user to easily and correctly input a curve in a simple constitution by warning an invalid state to an operator for input of the points set on a curve as long as the space set between the present input point and its precedent point is not included in a valid range. CONSTITUTION:An input means inputs the coordinate positions of the points set on a curve constructing a graphic, and a measuring device estimates the space set between two points supplied successively on the curve by the input means. Then a deciding means decides whether the measured space between both points is included in a prescribed range or not. If not included, i.e., when the present input point is too far from or too close to the precedent point, an information means informs a user of this fact and urges the user to input again these points. Then the user can always input the points on a curve with the optimum spaces secured among them in a simple way.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a graphic input device for inputting coordinates on a graphic.

[0002]

2. Description of the Related Art Conventionally, in a figure input device such as a digitizer device for inputting the coordinate position of a point on a figure, the points forming the figure are, for example, corner points on the figure and points on the curve. Two types were input, and the input points were connected by straight lines at the corner points and arcs or spline curves at the points on the curve to form a figure.

[0003]

However, according to the above-mentioned conventional figure input device, the curve may not be reproduced accurately depending on the way of inputting points on the curve. This is because the intervals at which the points on the curve are input are too large, or the differences between the intervals at which the points on the curve are input are large. On the contrary, if points are input at small intervals, the curve can be reproduced more accurately, but the input operation is very troublesome because the number of input points becomes huge.
Therefore, it is necessary to input the points on the curve at appropriate intervals, but this work depends on the user's perception and experience, and it is very difficult to input at the optimum intervals.

The present invention has been made in order to solve the above-mentioned problems, and an object thereof is to provide a figure input device having a simple structure and allowing a user to easily and more accurately input a curve. And

[0005]

In order to achieve the above-mentioned object, the figure input device of the present invention has an input means for inputting coordinate positions of points on a curve forming a figure, and the input means successively inputs the coordinate positions. Measuring means for measuring the distance between two adjacent points on the curved line, judging means for judging whether the distance measured by the measuring means is within a certain range, and the distance is fixed by the judging means. When it is determined that the value is not within the range, a notification unit that notifies the user is provided.

[0006]

According to the figure input device of the present invention having the above-mentioned configuration, the coordinate position of the point on the curve forming the figure is input by the input means, and the measuring means inputs the coordinate position on the curve in order from the input means. Measure the distance between two points next to each other. Then, the determining means determines whether or not the interval measured by the measuring means is within a certain range, and if it is determined that the interval is not within the certain range, the notifying means notifies the user. , Prompt for retyping.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings.

First, the electrical control configuration of this apparatus will be described with reference to the block diagram of FIG.

The graphic input device according to this embodiment includes a central processing unit (CPU) 21 for controlling the entire system, and an R.
AM 22, ROM 23, coordinate input device 24 such as a digitizer, display device 25 for displaying the input graphic or other information, printing device 26 for printing the input graphic, hard disk or the like. A readable / writable external storage device 27 and a sound output device 2 such as a buzzer
8 and. The RAM 22, the ROM 23, the coordinate input device 24, the display device 25, the printing device 26, the external storage device 27, and the voice output device 28 are the CPU 2 respectively.
Connected to 1.

The RAM 22 is provided with a data area 221 for storing various data, a working area 222 for executing a program, a display memory 223 for writing display data, and the like. The data area 221
Include the input data buffer 224 and the point number buffer 22.
5, a line input flag 226 and the like are included.

A system program 231 for controlling the entire system is stored in the ROM 23.

The coordinate input device 24 constitutes input means for inputting the coordinate position of a point on a curve of a figure, etc., and as shown in FIG. 3, a tablet plate 241, a coordinate indicator 242, and a coordinate. A controller 243 that controls the entire input device 24 and an interface cable 244 that transmits data to the central processing unit (CPU) 21 are provided. As shown in FIG. 4, the coordinate indicator 242 includes a coordinate reading focus 245 and a plurality of instruction buttons 24.
6 and. The instruction button 246 includes a corner point designation button 246A, a curve point designation button 246B, a line start point designation button 246C, and a line end designation button 246.
D, a graphic end button 246E, an end button 246F and the like are provided. The coordinate indicator 24 on the tablet plate 241
When each instruction button 246A to 246F of No. 2 is pressed,
The coordinate value on the tablet plate 241 of the coordinate reading focus 245 and the type of button when the button is pressed are sent to the central processing unit 21 via the interface cable 244.

The display device 25 also constitutes an informing means, and in addition to the input figures and other data,
Displays a message indicating an error. It also includes a display screen 251 for displaying the input figures, messages, and the like.

The printing device 26 is for printing the input graphic.

The external storage device 27 stores a maximum valid interval value 271 and a minimum valid interval value 272. In addition, the input data such as figures is saved.

The voice output device 28 constitutes a notification means, and outputs a sound to notify the user when an error occurs.

This embodiment is constructed as described above.

Based on the above construction, the operation of inputting the pattern pattern of clothes will be described below with reference to the flow charts of FIGS.

When the power is turned on, the system program stored in the ROM 23 is activated and executed. By starting the system program, the coordinate input device 24 is initialized (S1, S indicate steps. The same applies hereinafter), the line input flag 226 is set to OFF (S2), and the initial value 0 is set in the point number buffer 225. Set (S3). Then, an initial screen including a message prompting the operator to input from the coordinate input device is displayed on the display screen 251 (S4). FIG. 11 is an example of the initial screen.

Next, the operator sets a pattern pattern to be input on the tablet board 241 of the pattern input device 24, and positions of respective points on the outer peripheral line of the pattern pattern are designated along the line in order and designated buttons of the coordinate indicator 242. It is input by pressing 246 (S5). That is, the coordinate reading focus 245 of the coordinate indicator 242 is aligned with the point to be input, and if it is a corner point of the figure, the corner point designation button 246A of the coordinate indicator 242 is selected.
Press. If it is a point on a curve, the curve point specification button 2
Press 46B. Both ends of the curve are designated as corner point buttons 246
Press A. Further, one continuous line is started by pressing the start point designation button 246C of the line, and ends at the end point by pressing the end point designation button 246D of the line. When all the line segments on one figure have been entered, the figure end button 246
Press E. Exit button 24 to exit the system
Press 6F.

When the designated button is pressed, the type of the button is checked (S6), and if it is the line start point designation button 246C, the line start point designation button is pressed (S7). If it is the line end point designation button 246D, the line end point designation button pressing process is performed (S8). If it is the corner point designation button 246A, the corner point designation button pressing process (S9) is performed, and the curve point designation button 246 is performed.
If B, the curve point designation button pressing process (S10)
If the figure end designation button 246E, the figure end button pressing process (S11) is performed. Then, the input of the next designation button is awaited (S5). If the pressed button is the end button, the program ends. Details of the line start point designation button pressing process, the line end point designation button pressing process, the corner point designation button pressing process, the curve point designation button pressing process, and the figure end button pressing process will be described later.

As an example, one method of inputting a graphic as shown in FIG. 13 will be shown. First, the line start point designation button 246C is pressed at the corner point 30 of the outer peripheral line, and then the corner point designation button 246A is pressed at the point 31. Appropriate points 32, 3 on the curve
The curve point designation button 246B is pressed at 3, 34, and 35. The number and position of the points taken on the curve are not fixed, and the operator inputs them appropriately. Then, at the corner point 36 of the curve, the corner point designation button 246A is pressed. In this way, the points are input in order, and after inputting up to the point 42, the point 30
Then, the line end point designation button 246D is pressed to finish the input of the outer peripheral line. Since there are no other lines, the figure end button 24F4 is pressed.

Details of the line start point designation button pressing process (S7 of FIG. 5) will be described with reference to the flowchart of FIG. First, the line input flag 226 is checked (S2
0), if the flag is ON, the input of the start point is an error because the line segment is already being input. Since the input point becomes invalid, a message indicating an error is displayed on the display screen 251 (S21). Then, the error buzzer is turned on by the voice output device 27 (S22), and the line start point designation button pressing process ends. If the line input flag 226 checked in S20 is OFF, the coordinate value of the input point and the type of button (start point)
Is set in the place indicated by the point number buffer 225 of the input data buffer 224 (S23). An example of the input data buffer is shown in FIG. The value of the point number buffer is incremented by 1 (S24). A mark indicating the starting point of the line is displayed at a position corresponding to the coordinates on the display screen 251 (S25). And
The line input flag is turned on (S26), and the line start point designation button pressing process ends.

Next, referring to the flowchart of FIG.
Details of the corner point designation button pressing process (S9 in FIG. 5) will be described. First, the line input flag 226 is checked (S5
0), if the flag is OFF, it is an error because the start point has not been input yet. Since the input of the corner point becomes invalid,
A message indicating an error is displayed on the display screen 251 (S51). Then, the error buzzer is turned on by the voice output device 27 (S52), and the corner point designation button pressing process is ended. If the line input flag 226 is ON, the coordinate value of the input point and the button type (corner point) are set in the location indicated by the point number buffer 225 of the input data buffer 224 (S53). A mark representing a corner point is displayed at a position corresponding to the coordinates on the display screen 251 (S54).

Next, the input data buffer 224 examines the data of the previous point (S55). If it is a curve point, the curve is being input, so the previous point and the point input this time are determined. The interval is calculated from each coordinate value (S56).
It is checked whether the calculated interval is equal to or greater than the effective interval minimum value 272 and equal to or less than the effective interval maximum value 271 (S57), and if it is within the effective value range, the point input this time is regarded as effective and the previous curve point and this time are input. The curve passing through the corner points is displayed again (S5
8). Then, the value of the point number buffer 225 is incremented by 1 (S59), and the corner point designation button pressing process ends.

On the other hand, if the interval checked in S57 is not within the valid value range, the point input this time is invalidated. That is, the display screen 251 displays a warning message indicating to the operator that the point taken this time is too far from or too close to the previous point.
Is displayed (S61), the buzzer for warning is leveled by the voice output device 27 (S62), and the input data buffer 224 is displayed.
Delete one point of the data of the point entered this time written in (S6
3) Then, the corner point mark once displayed on the display screen 251 is erased (S64), and the corner point designation button pressing process ends. S5
If the data of the previous point checked in 5 is a corner point, it is not necessary to check the interval, so a straight line connecting the previous point and the point input this time is displayed (S60), and the point number buffer 225 The value is incremented by 1 (S59), and the corner point designation button pressing process ends.

Next, referring to the flowchart of FIG.
Details of the curve point designation button pressing process (S10 in FIG. 5) will be described. First, the line input flag 226 is checked (S70), and if the flag is OFF, it is an error because the start point has not been input yet. Since the input of the curve point is invalid, a message indicating an error is displayed on the display screen 251 (S71). Then, the error buzzer is smoothed by the audio output device 27 (S72), and the curve point designation button pressing process is ended. If the line input flag 226 is ON,
The coordinate value of the input point and the type of the button (curve point) are set in the location indicated by the point number buffer 225 of the input data buffer 224 (S73). A mark representing a curve point is displayed at a position corresponding to the coordinates on the display screen 251 (S7).
4). The input data buffer 224 examines the data of the previous point, and calculates the distance from the point input this time from the respective coordinate values (S75).

Then, the calculated interval is the minimum value 2 of the effective interval.
It is checked whether it is 72 or more and the effective interval maximum value is 271 or less (S76). If it is within the effective value range, the point input this time is effective, so a curve passing through the previous point and the curve point input this time is displayed. Fix (S77). Then, the value of the point number buffer 225 is incremented by 1 (S78), and the curve point designation button pressing process ends. If the interval checked in S76 is not within the valid value range, the point input this time is invalidated. That is,
Display a warning message that indicates to the operator that the point taken this time is too far or too close from the previous one.
51 is displayed (S79), and the buzzer for warning by the voice output device 27 is leveled (S80), and the data of the point input this time written in the input data buffer is erased for one point (S81).
The curve point mark once displayed on the display screen 251 is erased (S82), and the curve point designation button pressing process ends. FIG. 14 shows an example of a screen displaying a warning message.

Next, referring to the flowchart of FIG.
The details of the line end point designation button pressing process (S8 in FIG. 5) will be described. First, the line input flag 226 is checked (S30), and if the flag is OFF, it is an error because the start point has not been input yet. Since the end point of the line is invalid, a message indicating an error is displayed on the display screen 251 (S31). Then, the error buzzer is turned on by the voice output device 27 (S32), and the line end point designation button pressing process ends. If the line input flag 226 is ON, the coordinate value of the input point and the button type (end point) are set in the location indicated by the point number buffer 225 of the input data buffer 224 (S33), and the coordinates of the display screen 251 are set. A mark representing the end point is displayed at the corresponding position (S34).

Next, the input data buffer 224 examines the data of the previous point (S35). If it is a curve point, it means that the curve is in the process of being input, so the previous point and the point input this time are determined. The interval is calculated from each coordinate value (S36).
It is checked whether the calculated interval is equal to or greater than the effective interval minimum value 272 and equal to or less than the effective interval maximum value 271 (S37), and if it is within the effective value range, the point input this time is regarded as effective and the previous curve point and this time are input. The curve passing through the end point of the line is displayed again (S38). Then, the value of the point number buffer 225 is incremented by 1 (S39). The line input flag 226 is turned off (S40), and the line end point designation button pressing process ends.

On the other hand, if the interval checked in S37 is not within the valid value range, the point input this time is invalidated. That is, a warning message indicating to the operator that the point taken this time is too far away or too close from the previous point is displayed on the display screen 251 (S41), and the buzzer for warning the sound output device 27 is turned on ( S42), the input data buffer 224
Delete one point of the data of the point you entered this time written in (S4
3) Then, the end point mark once displayed on the display screen 251 is erased (S44), and the line end point designation button pressing process ends.
If the data of the previous point checked in S35 is a corner point, 1
Display the straight line connecting the previous point and the point entered this time (S4
5), the value of the point number buffer 225 is incremented by 1 (S3
9), turn off the line input flag 226 (S40),
The process of pressing the line end point designation button ends.

Next, the details of the graphic end processing (S11 in FIG. 5) will be described with reference to the flowchart in FIG. First, the line input flag 226 is checked (S9
0), if the flag is OFF, it is an error because the end point has not been input and the line segment is being input. Since the figure end is invalidated, a message indicating an error is displayed on the display screen 251 (S91). And the audio output device 2
The buzzer indicating an error is smoothed at 7 (S92), and the figure end processing is ended. If the line input flag 226 is ON, it means that all the figures input this time are over, and the display screen 25
The graphic displayed in 1 is erased (S93), and the graphic end processing is ended.

The processing steps of S56 of FIG. 7, S75 of FIG. 8 and S36 of FIG. 9 function as measuring means for measuring the interval between two points on the curve. In addition, S57 of FIG.
Each processing step of S76 of FIG. 8 and S37 of FIG. 9 functions as a determination unit that determines whether or not the interval between the two points measured by the measurement unit is within a certain range.

As is apparent from the above description, according to the figure input device of this embodiment, when a curve is input, the input interval is checked and if it is not within the valid value range, the operator is warned and a point is displayed. By re-entering, it becomes easier for the operator to enter curves at regular intervals.

The present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, in the above configuration, when a point on the curve is input, it is checked whether the interval with the previous point is within a fixed valid value range, but this valid value is not limited,
The same effect can be obtained by changing the size of the input graphic or setting the value depending on the mode. Further, in the above-mentioned embodiment, when the distance to the previously input point is not within the valid range, the input point is invalidated and retaken. However, only when the distance is not within the valid range, a warning is given. Then, when the operator wants to force the input, the same effect can be obtained even if the input can be validated. Further, in the above embodiment, only the figure input function is shown, but depending on the purpose of use of the system, the interlocking state with other systems, etc., for example, the function of editing or correcting the entered figure, etc. Other functions may be provided.

[0036]

As described above, according to the present invention, when inputting a point on a curve, the distance between the point input immediately before and the point input this time is calculated from each coordinate value. , If the interval is not within the valid value range, that is, if the point entered this time is too far from or too close to the previous point, the operator is warned that it is invalid. By re-inputting the points, it is easy to always input the points on the curve at optimum intervals. Further, the present device has excellent effects such as a simple structure.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of the present invention.

FIG. 2 is a block diagram showing a configuration of an exemplary embodiment of the present invention.

FIG. 3 is a schematic diagram showing an example of the configuration of a coordinate input device.

FIG. 4 is a schematic diagram showing an example of the configuration of a coordinate indicator.

FIG. 5 is a flowchart showing an outline of an operation in one embodiment of the present invention.

FIG. 6 is a flowchart showing details of a line start point designation button pressing process according to an embodiment of the present invention.

FIG. 7 is a flowchart showing a corner point designation button pressing process according to an embodiment of the present invention.

FIG. 8 is a flowchart showing a curve point designation button pressing process in the embodiment of the present invention.

FIG. 9 is a flowchart showing a process of pressing a line end point designation button according to an embodiment of the present invention.

FIG. 10 is a flowchart showing a graphic end process in an embodiment of the present invention.

FIG. 11 is a schematic diagram showing an example of an initial screen according to an embodiment of the present invention.

FIG. 12 is a schematic diagram showing an example of an input data buffer according to an embodiment of the present invention.

FIG. 13 is a schematic diagram showing a figure input method according to an embodiment of the present invention.

FIG. 14 is a schematic diagram showing an example of a display screen displaying a warning message according to an embodiment of the present invention.

[Explanation of symbols]

 21 CPU 23 ROM 24 Coordinate Input Device 25 Display Device 28 Voice Output Device 231 System Program

Continuation of front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location D05B 21/00 7152-3B G06T 1/00

Claims (1)

[Claims] 1. Input means for inputting coordinate positions of points on a curve forming a figure, and adjacent two on the curve sequentially input by the input means.
Measuring means for measuring the distance between the points, judging means for judging whether or not the distance measured by the measuring means is within a certain range, and the judging means determines that the distance is not within the certain range. When notifying, a notification means for notifying the user,
A graphic input device comprising: