JP2568174B2 - Display controller - Google Patents

Description

The present invention relates to a display control device in which display means such as CRT and coordinate input means such as transparent digitizer are combined.

[Prior Art] In the field of data input by graphics by combining data processing by a computer and image processing technology, a machine and a human can work interactively by causing a display change according to a position designated by an operator. Man =
The need for machine interface is being cried.

This type of man-machine interface has a combination of a display device such as a liquid crystal display under a transparent digitizer or doublet, a combination of a CRT and a light pen, or a display device such as a CRT with a transparent touch panel. It has been devised such as one that is stacked on the entire surface. That is, it should be called a coordinate input / display device in which the coordinate input device and the display device are integrated. In such a device, when each item of the menu list is displayed on the screen in several areas and the item in the area including the position pressed by the pen tip or the fingertip is selected, Is sufficiently wide so that even if the input coordinate value of the pen tip or finger tip deviates slightly from the target position, no serious problem occurs.

However, for example, CAD (CONPUTER AI
There are various problems in fields such as DED DESIGN) where precision in figure creation is required. Fig. 2 shows an example of CRT display when designing printed wiring by CAD. CRT
On the screen, as shown in the drawing, printed wirings densely running in the lateral direction are running. Now, assume that the cursor is at the point A on the upper left of the screen. Point A to point B in the dense wiring area
There are two ways to move the cursor up to. The first method is to reach the point B while moving the cursor by sewing between the printed wirings as shown by the locus C. This can be easily understood by assuming that a new printed wiring is drawn on the locus C. Then, the second method is a method of reaching the point B in a substantially shortest distance like the trajectory D.

[Problems to be Solved by the Invention] When the above two methods are analyzed and studied, it is found that the coordinate input / display device requires the following viewpoints.
That is, it is structured so that the direction in which the cursor should be moved and the distance in which the cursor should be moved can be grasped .: From the viewpoint of inputting coordinates, the problem is to indicate the target position quickly and accurately. . This requires that the cursor be quickly moved from the current cursor position to the target position, and that the position can be accurately indicated when the cursor is near the target position. In other words, you can specify the target point more accurately,
For that purpose, the operator of the apparatus is configured to easily recognize the position of the target point. It is also important not to lose track of the direction to the target and the distance to the target. However, from this point of view, with a conventional coordinate input pointing tool, a stylus pen, fingertip, or the like hides the figure displayed at the tip of the stylus, and it is difficult to accurately point the target position. In particular, when the resolution of the coordinate input device is smaller than the resolution of the display means such as a CRT such as a touch panel, it is not possible to accurately indicate an arbitrary minute section displayed on the CRT or the like, for example, one dot. In addition, even if you intend to indicate the dot displayed between a grid point and the grid point next to it on the touch panel, etc., in some cases, the point displayed directly below the wrong grid point. Will end up instructing you.

: Is a problem of the conventional technology from the viewpoint of how to reach a certain target point. However, as can be seen from the example of the trajectory C in FIG. 2, when reaching a certain target point, the route to reach that target point becomes a problem at the same time. That is, in the example of the locus C, what should be done to reach the target point B while avoiding the printed wiring already displayed. From the viewpoint of keeping the cursor position at a predetermined distance from the existing image, in other words, there is a problem that the point designated by the operator is displayed as a locus in one dimension. With respect to this point, the conventional technique is insufficient because only the point immediately below the grid point of the coordinates that can be input on the touch panel or the like can be accurately indicated, that is, displayed.

: In order to reach the target point more accurately, or to reach the target point while drawing a desired trajectory, the input instruction speed of the operator and the moving speed of the cursor (or the display drawing speed at which the trajectory is drawn) are For example, when the target point is far, it is desirable that the drawing speed of the locus can be made faster than the input instruction speed, and when the target point is near, the former speed can be made slower than the latter speed.

: Not just as a display device or coordinate input device,
The man-machine interface that considers the above points is desired.

The present invention has been made in view of the above-mentioned problems of the conventional art, and an object thereof is to propose a display control device capable of accurately moving a figure to be moved to a desired target point.

[Means for Solving the Problems] In order to achieve the above object, the present invention displays a moving target graphic and a touch area of a predetermined size in the vicinity of the graphic on the display screen of the display means. A display control device; a coordinate input means having a coordinate input surface arranged so as to overlap the display screen; a detection means for detecting a touch-instructed position of the coordinate input means; and a touch area corresponding to the touch area. When it is detected that the position of the coordinate input means is touch-instructed and the instructed position is moved, the figure is displayed while maintaining the positional relationship between the instructed position and the figure. And a movement control means for moving.

[Embodiment] As a preferred embodiment of the present invention, for example, the display device of the embodiment shown in FIG. 1 is a CRT display 2 which is a display means.
The display surface and the transparent tablet 1 which is the coordinate input means are overlapped with each other and the display coordinates and the input coordinates of the two are superposed so as to have a predetermined correspondence. When the figure to be moved is the figure 700, the figure 700 is specified by, for example, moving the cursor 400 into the figure 700. The display device is provided with a graphic movement instruction area 500 capable of inputting an instruction to move the graphic 700 so as to have an area where the display surface of the CRT display 2 and the touch panel 1 overlap. Further, the display device further includes coordinate displacement detecting means 401 for detecting the direction, distance and speed of coordinate displacement of input coordinates input by a finger or the like in the graphic movement instruction area 500, and a graphic for moving the graphic 700 to a desired position. The moving means 403 is connected.

In the above structure, a predetermined area on the touch panel 1,
That is, the coordinate displacement detection means 401 detects the movement of the finger when input to the figure movement instruction area 500 as the direction, distance and speed of the coordinate displacement, and moves the figure 700 according to the detected speed, for example, the displacement speed is When the displacement speed is lower than a predetermined speed, the distance to the target figure 700 is moved to be more than 1 time when the displacement speed is lower than the predetermined speed. And so on. In this way, the movement of the figure 700 is limited to the movement instruction area 5 of the operator.
It can be controlled by, for example, input to 00 with a finger, and the moving speed of the figure 700 can be varied depending on whether the figure 700 is far from or close to the target point to be moved. You can move fast and accurately. Further, following the movement of this figure 700, the movement instruction area 5
Even if 00 moves its position in parallel, operability is further improved.

A more specific embodiment of the present invention will be described in detail below with reference to FIG.

<Block Configuration of Embodiment> FIG. 3A is a block configuration diagram of the coordinate input device with a display function of the embodiment. A touch panel 1 is attached to the screen of the CRT display 2 so as to cover the drawing. CR
The T controller 3 takes out the image data created by executing the program of the CPU 4 from the image memory 5 and displays it on the CRT display 2. The program and data of the CPU 4 are stored in the memory 6. The position touched by a finger or the like on the surface of the touch panel 1 is the touch panel control circuit 7
Is detected by. This is read by the CPU 4 as coordinate values. The CPU 4 accesses these data via the bus 8. The keyboard 9 is for inputting operations required for image display and coordinate input. For example, "mode" key 80,
The "input" key 81 and the like. How to use these keys will be described later.

FIG. 3B shows an example of the CRT screen. The number of pixels on this screen is, for example, 640 dots horizontally and 400 dots vertically. The coordinates of the pixel at the upper left corner are (0,0), the upper right corner is (0,633), the lower left corner is (399,0), and the lower right corner is (399,633). In general,
When the data corresponding to the pixels thus coordinated are stored in the image memory 5, 8 pixels in the horizontal direction are made to correspond to 1 unit of memory position, that is, 1 byte, and are sequentially stored in the horizontal direction to store one dot line. In general, the next one dot line is stored in a sequential manner and the data for one pixel is stored in a raster image. In this way, the contents of the image memory 5 are transferred from the CPU 4 to the normal memory 6
Be able to handle it in the same way as. Under the above environment, a point is formed at an arbitrary position on the screen of CRT display 2. Draw a line from any position to any position. Besides drawing programs such as drawing a circle around an arbitrary position, the bit pattern data of an arbitrary rectangular area on the screen is transferred to the memory 6 in a specific format, and vice versa. There is a drawing program that outputs to an arbitrary position. This is realized by the CPU 4 rewriting the contents of the image memory 5 or transferring data with the memory 6. When the content of the image memory 5 is rewritten, when the rewriting source data is S and the pixel data of the image memory is D in bit units corresponding to respective pixel data, D =
For example, a method of using the result of the logical operation α of α · S as new data in the image memory can be used. For example, screen reversal can be realized by setting α to exclusive OR and S to “1”.

The above is an example of performing graphic processing as a program of the CPU 4, but there are some CRT controllers 3 having these functions. In this case, the CPU 4 only has to issue a drawing command to the CRT controller 3.

On the other hand, if you touch any point on the screen with your finger, etc., touch panel 1 is placed on the screen.
U4 can be read from the touch panel control circuit 7. The touch panel control circuit 7 may pass the X-direction coordinate and the Y-direction coordinate of the pressed position to the CPU 4 as a numeric code or as a binary value. In any case, the coordinates of the touch panel 1, the coordinates on the CRT display 2 and the coordinates in the image memory 5 uniquely correspond to each other, so that when the pixel is pressed while looking at the CRT screen, the touch panel 1 is pressed. Enter the coordinate value, and from that value,
It suffices if the coordinates (x, y) of the image memory 5 can be calculated.

<Graphic Cursor> FIG. 4 shows an example of the principle of the graphic cursor used in the embodiment. The display surface of the CRT display 2 is provided with three display areas, that is, a cursor 10 in which four L-shaped figures are combined, a cursor movement instruction display area 11 and a coordinate input instruction display area 12. Further, on the coordinate input surface of the touch panel 1, a cursor movement instruction input area 14 corresponding to the cursor movement instruction display area 11 and a coordinate input instruction display area.
Two areas, a coordinate input instruction input area 13 corresponding to 12, are provided. In order to move the central portion P of the cursor 10 to a desired display position, the operator moves the cursor movement instruction display area.
While visually recognizing 11, a moving direction and a moving distance are given in the cursor moving instruction input area 14 with, for example, a finger or a stylus pen. By pressing the coordinate input instruction input area 13 while visually checking the display of the coordinate input instruction display area 12, the pixel indicated by the central portion P of the cursor 10 is instructed to be input as a new image (dot).

In this embodiment, the cursor thus configured will be referred to as a "graphic cursor". As shown in FIG. 4, various operations can be performed by appropriately combining graphic cursors composed of five constituent elements. For example: The cursor 10, the cursor movement instruction display area 11, and the cursor movement instruction input area 14 are set to areas close to each other so that the cursor 10 is not hidden even if the cursor movement instruction force area 14 is pressed with a finger. Cursor movement instruction display area
11 Move the cursor on the cursor 11 to move the cursor 10, and the cursor movement instruction display area 11 and the cursor movement instruction input area 14
Also move with cursor 10. This operation is to move the cursor 10 while keeping a short distance from the finger as the finger moves, and since the cursor 10 is away from the finger and is not hidden by the finger, the operability is extremely high. Since the target point can be reached accurately and conveniently, it is highly valuable as a display device.

In addition to the configuration of :, the coordinate input instruction display area 12 and the coordinate input instruction input area 13 are set close to the cursor 10, and when the cursor 10 moves, these areas also move. In addition to the features described in this method, the operability is extremely good in terms of inputting coordinates (as an example of this, shown in FIGS. 5A and 5B).

: In the above two configurations, the cursor movement instruction display area 11 and the coordinate input instruction display area 12 are displayed graphically. For these, for example, the coordinate input instruction display area 12 and the coordinate input instruction input area 13 may be substituted on the keyboard 9 by, for example, the "input" key 81 described above. In addition ,: Do not move the cursor movement instruction display area 11 and the cursor movement instruction input area 14 together with the cursor 10.
It may be set in the fixed area as shown in FIG.

: Also, it is possible to set a general figure as a moving object instead of the cursor.

<Specific Example of Graphic Cursor> Two examples of the configuration of the graphic cursor are shown in FIGS. 5 (a) and 5 (b).

In the graphic cursor 100 shown in FIG. 5A, the cursor 10 and the coordinate input instruction display area 12 and the coordinate input instruction input area 13 are overlapped with each other (the area thus overlapped is called the coordinate input instruction area 30). Coordinate input instruction area
A movement instruction area 40 in which a cursor movement instruction display area 11 and a cursor movement instruction input area 14 are overlapped is set near 30.
The entire graphic cursor 100 of FIG. 5A is formed in a rectangular area having a horizontal length of L _1x and a vertical length of L _1y . The L-shaped regions 20a, 20b, 20c, 20d form the cursor 10, and the reason why the cursor 10 has such a structure is that the central portion P can be easily identified. In order to highlight the difference between the conventional graphic cursor and the graphic cursor of this embodiment, the center of the L-shaped four sides is hereinafter referred to as an "alternative position". This is because the cursor 10 and the movement instruction area 40 are separated, and the coordinates of the central portion P of the cursor become the input coordinates "instead of" with respect to the input by a finger or the like.

Set the reference coordinate position of the graphic cursor 100 to the upper left corner (X
_b , y _b ), the relative length of the alternative position P is ΔX _{1 for} the horizontal distance and ΔY ₁ for the vertical distance. That is, the alternative position P is represented by (ΔX ₁ , ΔY ₁ ) with (X _b , Y _b ) as the origin.
The movement instruction area 40 is represented by a quadrangle, and the size of the area is horizontal length l _2x , vertical length l _2y , and the upper left corner position which is the reference point of the area is (X _b , y _b + l ₃ ). The reference position of the coordinate input instruction area 30 is (X _b , y _b ).
The horizontal length is l _1x and the vertical length is l _1y . In this way, it is easy to draw a desired graphic cursor graphic by giving the reference coordinates of each graphic and the distance from it. That is, if you move the reference position, the graphic cursor
100 will move as it is.

FIG. 5 (b) is the graphic cursor of FIG. 5 (a).
This is an example of a graphic cursor 200 having a slightly different function from 100. The graphic cursor 200 is formed in a rectangular area having a horizontal length of L _2y and a vertical length of L _2y . The offset at the alternate position Q is ΔX ₂ horizontally and ΔY ₂ vertically. What is particularly different from the graphic cursor 100 is that the movement instruction area 60 is set to the entire graphic cursor 200, and accordingly, the coordinate input instruction area 50 (this area is also a movement instruction area at the same time) It is the remaining area of the graphic cursor 200, excluding the rectangle 70 representing the area for instructing only movement from the area 50. The horizontal length of the coordinate input instruction area 50 is l _4x , the horizontal length is l _4y , and the offset from the reference position is “0” both horizontally and vertically. In addition to the function of the graphic cursor 100, the graphic cursor 200 moves while pushing the coordinate input instruction area 50 so as not to be hidden at the alternative position Q so that coordinates can be continuously input. The movement instruction and the coordinate input instruction can be made simultaneously.

<Operation of Graphic Cursor> FIG. 6 (a) shows an example of a method of operating the graphic cursor 100 (FIG. 5 (a)). CRT Display 2
At the cursor starting position above, while pressing the movement instruction area 40, move the finger without releasing the finger. With this movement, the entire graphic cursor 100 or 200 moves. This movement is performed by changing the value of the reference coordinates (x _b , y _b ).
As can be seen from the figure, it should be noted that the alternative position P is not hidden by the finger during the movement. When the alternative position P reaches the target position, the coordinates of the target position are input by pushing the coordinate input instruction area 30 with a finger.

FIG. 6B is a diagram when the present apparatus is used in the continuous input mode (control procedure of FIG. 11) by operating the “mode” key 80. In this continuous input mode, when the finger is moved to the movement instruction area 40 of the graphic cursor 100, the graphic cursor 100 naturally moves as the finger moves, but at the same time, the coordinates of the alternative position P are input. It is possible to obtain continuous coordinate input (display it as it is to form a locus).

The example of FIG. 6 (c) has a configuration in which the respective constituent elements of FIG. 4 are disjointed, and the cursor 10 moves onto the CRT display 2 as in the conventional case. The coordinate input instruction display area 12, the coordinate input instruction input area 13, and the cursor movement instruction input area 14 do not move,
It remains in the fixed position shown.

In the example of FIG. 6 (d), the coordinate input instruction is performed by the coordinate input key 81 on the keyboard 9.

<Examples of other graphic cursors> Other graphic cursors 30 are shown in FIGS. 5 (c) and 5 (d).
An example of 0,600 is shown. An outer frame 301 and an inner frame as shown in FIG. 5 (c)
An area between the inner frame 302 and the inner frame 302 is an input instruction area 304, and an inner area of the outer frame 301 is a movement instruction area 30.
Is 3. The alternative coordinate R is represented by the center of the four L-shapes as described above. As described above, by setting the area around the alternative coordinate as the input instruction area and the area around the alternative coordinate as the movement instruction area, the alternative coordinate R can be moved to any position at the top, bottom, left, and right ends of the screen. As shown in FIG. 5D, the input instruction area 601 may be defined in a place other than around the alternative coordinate S. In particular, when the size of the graphic cursor is limited, it is effective when the locus can be input even at a place away from the alternative coordinate S. Area 60, of course
Alternatively, the area 2 and the vicinity of the L-shape may be used as the input instruction area by setting 2 as the movement only.

<Drawing Program and Coordinate Input Program> FIG. 7C shows an example of drawing a circuit diagram on the CRT display 2. A straight line (printed wiring) is drawn from the point E to the input pin F of the gate 101. Point F
As described above, it is difficult to move the cursor by distinguishing between the point F and the point G with the conventional graphic cursor because it is close to the input pin of the gate 102.
An example of this drawing program is as shown in FIG. Input coordinates and the like are necessary for the drawing program to draw, and the coordinate input program gives such information. The coordinate input program has a role of moving the cursor and giving input coordinates to the drawing program. Examples of coordinate input programs are shown in Fig. 10, Fig. 11, Fig. 12, and Fig. 13.
Figures 14, 14 and 15 show this. Coordinate input program is CPU4
Is called for each timer value 105 (FIG. 8) at a predetermined time interval and executed independently of the drawing program.

The arrangement of the drawing program and the coordinate input program in the memory 6 is as shown in FIG. 7 (b). FIG. 7C is a diagram showing an interface between the drawing program and the coordinate input program. ON / OFF from the coordinate input program
The change flag, OFFON change flag, start coordinate, end coordinate, ON coordinate, ON flag, etc. are passed to the drawing program.
These pieces of information are stored in the memory 6 by the coordinate input program (see FIG. 8). The drawing program and the coordinate input program are multi-processed. The drawing program reads these pieces of information stored in the memory 6 and draws according to the control procedure of its own program.

<Control Information> FIG. 8 shows a state in which flags and the like necessary for the control of the embodiment are stored in the memory 6. Temporary coordinates 90, moving flag 91, reference position coordinates 92, old coordinates 93, ON flag 94, alternative position coordinates 95, moving area flag 96, input flag 97, continuous mode flag 98, OFFON change flag 99, ON OFF change flag
101, a start coordinate 102, an end coordinate 103, an ON coordinate 104, a timer value 105, etc., and a detailed description thereof will be given when the control procedure is described. Further, the amount of L _1x or the like for specifying the size of the graphic cursor or the like is also stored in the memory 6.

<Drawing Program Control Procedure> FIG. 9 shows a drawing program control procedure. This is a simple program for drawing a straight line as shown in FIG. In step S2, the menu required for this drawing program is displayed. OFF ON change flag 9 in step S4
Wait for 9 to be set. This OFFON change flag 99 is set by the coordinate input program, and the fact that this flag is "1" indicates that the cursor movement instruction input area 14 has been pressed for the first time with a finger or the like. At this time, the start coordinates 102 are stored in the memory 6 by the coordinate input program described later. Step S6 waits for the ON / OFF change flag 101 to be set. The ON / OFF change flag 101 is a flag indicating that the finger has been released from the cursor movement instruction input area 14. When this flag is "1", the end coordinates 103 are stored in the memory 6. Start coordinate 1 for step S8
The addresses in the image memory 5 corresponding to 02 and the end coordinates 103 are calculated, and all the pixels between them are set to "1". Thus, the points E and F shown in FIG. 7A are simply connected by a straight line.

<Coordinate Input Program> Next, an example of the coordinate input program most characteristic of this embodiment will be described below. As described above, this coordinate input program is periodically called and executed at predetermined time intervals (timer value 105).

<Control procedure of graphic cursor 100> FIG. 10 shows the graphic cursor shown in FIG. 5 (a).
This is a control procedure associated with 100 operations. In step S60, it is determined whether any part of the touch panel 1 has been pressed. If it is determined in step S60 that there is no input, the process proceeds to step S94. Since the finger is not touching, the moving flag 91 is set to "0" in step S94. The moving flag 91 indicates that the cursor movement instruction input area 14 has been pressed once. At step S96, the ON flag 94 is checked.
This ON flag 94 indicates that the finger previously pressed any point on the touch panel 1. When the ON flag 94 is "0", the coordinate input program is terminated, and when it is "1", step S9 is executed.
At 8, the ON / OFF change flag 101 is set to "1". Step S100
Then, the ON coordinate 104 is registered as the end coordinate 103, that is, the coordinate value immediately before the finger is released is registered as the previously input coordinate value. Then, in step S102, the ON flag 94 is set to "0" to end the coordinate input program. This coordinate input program is executed again after a predetermined time has elapsed.

If any point on the touch panel 1 is pressed in step S60, it is determined that there is input, and the process proceeds to step S62.
The touch coordinate 106 (X ', y') is input. At this time, depending on the control system of the touch panel 1, the coordinate value (X ', y') may be input first, and the presence or absence of the input may be determined by the range check of this value. In step S64, coordinate conversion is performed according to the correspondence between the touch panel 1 and the image memory 5, and the coordinates are converted into on-screen coordinates and registered as temporary coordinates 90. In step S66, a moving flag 91 indicating whether or not a finger is touched in the movement instruction area during the previous sampling
When this flag is "0", that is, when the cursor movement is not instructed at the previous sampling, the process proceeds to step S72. At step S72, it is determined whether the temporary coordinate 90 (which is (X, y)) and (x, y) are within the movement instruction area 40. In this judgment, if the reference position is (x _b , y _b ), When it is, it is determined that the movement is in the movement instruction area 40.

If it is outside this area, the process proceeds to step S76, and the moving flag 9
1 is set to "0" and it is determined in step S80 whether the temporary coordinate 90 is within the coordinate input instruction area 30. This check is When it is, it is determined to be within the coordinate input instruction area 30. When in the coordinate input instruction area 30, the ON coordinate 104 is replaced with the alternate coordinate in step S84.
95, that is, the coordinates of the point P in the cursor are registered. The ON coordinate 104, which is the information to be passed to the drawing program, is set to (x ″,
y ″) Will be expressed as Temporary coordinates 90 at step S80
When (touched point) is outside the coordinate input instruction area 30,
In step S82, the ON coordinate 104 is registered with the value of the temporary coordinate 90.
This is because it is considered that the operator has touched the touch panel 1 for the purpose other than using the cursor.

Then go to step S86. Here, the ON flag 94 is checked. The ON flag 94 is a flag indicating that the coordinates have been input in the previous sampling. If the flag is "1", the program is terminated. If the flag is "0", it is turned off at the last sampling and turned on this time. Proceed to step S88 to do so. At this time, the OFF ON change flag 99 indicating that the change to the ON state has occurred is set to "1", and step S90
Register the start coordinate 102 with the value of the ON coordinate 104, and press the step.
In S92, the ON flag 94 is set to "1" and the program ends.

If it is determined in step S72 that it is within the movement instruction area 40,
At step S74, the moving flag 91 is set to "1", and step S
Continue to 98. Here, the value of the temporary coordinate 90 is registered as the old coordinate 93. This is for storing the original position of the finger in order to move the graphic cursor 100 by moving the finger while touching the movement instruction area 40 in a step described later.

If the moving flag 91 is "1" in step S66, the previous movement instruction area 40 has been touched, and the screen is still touched now. Therefore, the process proceeds to steps S68 and S70, and the graphic cursor 100 is moved according to the movement of the finger.
That is, in step S68, a new value of the reference coordinate of the graphic cursor 100 is calculated. Assuming that the displacement of the finger is x-coordinate and δy in y-coordinate, respectively, δx ← (x-coordinate value of temporary coordinate 90)-(x-coordinate value of old coordinate 93) δy ← (y-coordinate of temporary coordinate 90) value) - (because the y-coordinate value) of the old coordinates 93, new reference coordinates (x _b of the graphic cursor 100, a y _b) And update. Then, in step S70, the graphic cursor 100 is moved. That is, the display mechanism of the graphics cursor 100 (graphics cursor display circuit (not shown)) may be updated with new reference coordinates.
Next, in step S98, the value of the temporary coordinate 90 is moved to the old coordinate 93 in preparation for the next movement of the reference position.

With the above-described configuration, the coordinates of an arbitrary position touch the movement instruction region 40, move the finger as it is, set the centers of the four L-shaped regions, that is, the alternative positions P to the desired positions, and then input the coordinate input instruction. This is possible by touching the area 30 with a finger.

<Control Procedure for Graphic Cursor 200> In the configuration of graphic cursor 100 described above,
It is not possible to enter an accurate trajectory. In order to deal with this, as shown in FIG. 5B, the entire graphic cursor 200 is regarded as a movement instruction area, and a part thereof is set as the confirmation instruction area 50. FIG. 11 shows a control procedure relating to the operation of such a graphic cursor 200.

In step S110, it is determined whether or not the touch panel 1 has been pressed. Since the control procedure when it is not pressed is substantially the same as steps S94 to S102 in FIG. 10, description thereof will be omitted.

If it is determined that the touch panel 1 is pressed, it is determined that there is input, and the process proceeds to step S112, where the touch coordinates 106
Input (x ', y'). Touch coordinates in step S114
106 (x ', y') is subjected to the same coordinate transformation as that performed in step S64 of the above-mentioned embodiment to transform into the coordinate on the screen, and the temporary coordinate 90
Register as In step S116, the movement area flag 96 indicating whether or not the finger is touched anywhere in the graphics cursor 200 at the time of the previous sampling is checked.

When the in-movement area flag 96 is "1", that is, when the previous graphic cursor 200 is not instructed, the process proceeds to step S122. In step S122, it is determined whether the provisional coordinates 90 (x, y) are within the graphics cursor 200. This judgment, referring to FIG. 5 (b), At this time, it may be determined that the cursor is within the graphic cursor 200.

If the temporary coordinate 90 is not in the graphics cursor 200, the process proceeds to step S130, the intra-movement area flag 96 is set to "0", and the coordinate inputting flag 107 is set to "0" at step S132. The coordinate inputting flag 107 indicates that the finger is touching the coordinate input instruction area 50 of the graphic cursor 200, and is cleared to "0" because the graphic cursor 200 is not touched. So now your finger is touching somewhere other than the graphic cursor 200,
In order to use this position as the input coordinate value, the value of the ON coordinate 104 is registered as the value of the temporary coordinate 90 in step S146. And step S
At 154, the ON flag 94 is checked. ON flag 94 is "1"
If so, the program ends, and if "0", it is off at the last sampling, and this time is on, so the process proceeds to step S156. Here, the OFF ON change flag 99 indicating that the touch panel 1 is changed to the ON state is set to "1", the start coordinate 102 is registered with the ON coordinate value in step S158, and the ON flag 94 is set to "" in step S160. Set to 1 "and exit the program.

When it is determined in step S122 that the finger is pointing inside the graphics cursor 200, the process proceeds to step S124, and the movement area flag 96 is first set to "1". Further step S1
At 26, check whether the temporary coordinate 96 is in the coordinate input instruction area 50, and only when it is in the coordinate input instruction area 50,
In step S128, the coordinate input flag 107 is set to "1". Otherwise, this 107 remains "0" because it was cleared in steps S132 and S136. Check whether or not it is in the coordinate input instruction area 50 of step S126. It may be determined based on the formula of.

Then, in step S148, the value of the temporary coordinate 90 is registered as the old coordinate 93. The meaning of this step S148 is the same as that of the above-mentioned step S78. In step S150, it is checked whether the coordinate input flag 107 is "1". When this flag is "0", that is, when the coordinate input instruction area 50 is not touched, this program is terminated, and when touched, the coordinate value of the alternative position of the graphic cursor 200 is set at step S152. Register as the value of the ON coordinate 104. The coordinates (x ″, y ″) of this coordinate designated position can be calculated as follows.

This makes it possible to use the coordinates of the position of the point Q indicated by the graphic cursor 200 as the ON coordinates 104 instead of the position pressed by the finger. If the steps S154 and thereafter are executed as described above, the change to the ON state can be detected in the same manner, and the change to the OFF state when the finger is released can be similarly input.

If the movement area flag 96 is "1" at step S116, the graphic cursor 200 has been touched last time, and it means that the screen is still touched. Therefore, step S118, S
Proceed to 120 and move the graphic cursor 200 according to the movement of the finger. In step S118, a new value of the reference coordinate of the graphic cursor is calculated. Assuming that the displacement of the finger is X coordinate and δy in y coordinate, respectively, δx = (x coordinate value of temporary coordinate 90) − (x coordinate value of old coordinate 93) δy = (y of temporary coordinate 90) (Coordinate value)-(y coordinate value of old coordinate 93), the reference coordinate (x _b ,
y _b ) And it is sufficient. Then, in step S120, the moving process of the graphic cursor 200 is performed.

Then, by executing Step S148 and the subsequent steps as described above, the finger is moved while touching the coordinate coordinate input instruction area 50 to continuously input the coordinates of the coordinate indicated position of the point Q in the graphic cursor 200. It is also possible. That is, if a drawing program (different from FIG. 9) is constructed so that the ON coordinates 104 obtained from the coordinate input program are continuously developed in the image memory 5, the coordinate input can be obtained as a locus. The coordinate input program (FIG. 10) for executing the above-described FIG. 7 (a) is particularly effective when viewed as a display device, but the coordinate input program shown in FIG. 11 has significance as a program for the coordinate input device. is there.

<Continuous Coordinate Input> FIG. 12 shows a modification in which coordinates are continuously input using the graphic cursor 100 of FIG. 5 (a). Therefore, the "mode" key 80 on the keyboard 9 is operated to switch to the continuous input mode (that is, the continuous mode flag 98 becomes "1"). The difference from the flow chart in Fig. 10 is step S7.
9 only, the continuous mode flag 98 is checked in this step S79, and if this flag is "1", the process proceeds to step S84,
When it is "0", the program is terminated.

Further, instead of the "mode" key 80, an area for instructing mode switching can be set on the screen. In that case,
For example, a mode switching instruction area is set in a part of the movement instruction area 40, 60, and a step for checking the OFF → ON change to this area is inserted between steps S66 and S72, and OFF in that area → Continuous mode flag 98 every time ON or ON → OFF changes
Try to invert. On the other hand, when setting the mode switching instruction area outside the movement instruction areas 40 and 60, OFF → ON or O
Insert the step that changes from N to OFF between step S80 and step S82. However, in this case, if a mode switching instruction is issued, the program may be terminated without proceeding to step S82.

In this way, the coordinate input method can be appropriately changed to either one-shot or continuous, and the coordinate can be input using the alternative position coordinate as the input coordinate, so that the operability is significantly improved.

<Coordinate Input Instruction from Keyboard> In the embodiment described above, the coordinate input instruction is performed by inputting on the display graphic (that is, inputting on the touch panel 1). The embodiment shown in FIG. 13 partially corresponds to FIG. 6 (d), and the coordinate input instruction is given from the keyboard 9. This instruction is made by the "input" key 81 as shown in FIG. 6 (d). The flow chart shown in FIG. 13 is basically the same as the flow chart shown in FIG. 12 in terms of its structure. Instead of steps S80, 82, S84 shown in FIG. 12, the coordinates from the “input” key 81 at step S95 are used. This is to confirm whether or not there is an input instruction.

<Variation of Cursor Movement Speed> In the embodiment described above, when the movement instruction area 40 or 60 is input, the movement speed of the graphic cursor is basically the same as the movement speed of the finger. In the embodiment described below, the moving speed of the cursor is made variable. This is to move the cursor at high speed when the target is far, and to move the cursor closer to the target point at a speed lower than the moving speed of the finger in order to improve accuracy.

For this purpose, the step S68 shown in FIGS.
And the step S118 of FIG. 11 is changed as shown in FIG.
That is, step S68 or step S of the flow chart
When it reaches 128, it jumps to step S1001 in FIG. 14 and executes it. First, the movement displacement of the finger is calculated as x coordinate, y
If the coordinates are δx and δy, in step S1001, δx ← (x coordinate value of temporary coordinate 90)-(x coordinate value of old coordinate 93) δy ← (y coordinate value of temporary coordinate 90)-(old coordinate 93 y coordinate value) is calculated. Then, in step S1002, the moving amount of the graphic cursor is set to γ (107), Is calculated and the threshold value R stored in the memory 6 at a constant distance is calculated.
Compare with (111). If the movement amount γ (107) is less than R (111), step S1003 is executed, and if not, step S1003 is omitted and the process proceeds to step S1004.

In step S1003, the results obtained by multiplying the movement amounts δx and δy by the constant α (108) are newly set as the respective movement amounts. Here, by setting the constant α (108) to be less than 1, the movement amount is changed to be smaller than the actual movement of the finger. On the contrary, if the amount is 1 or more, the speed can be increased. At step S1004, set the reference coordinates (x _b , y _b ) of the graphic cursor. And

According to the above-described configuration, the precise position is instructed by touching the movement instruction area, moving the finger as it is, and quickly moving the center of the four L-shaped areas, that is, the alternative positions to the vicinity of the target position, At the time of alignment, by moving the finger flexibly, even if the resolution of the coordinate input device is small, it is possible to move to any position. In general, when instructing a precise position, a rough and rough alignment is performed from the beginning, and when instructing the final position, there is no sense of incongruity because it is consistent with the human action to be carried out flexibly.

Now, the program in Fig. 14 is called regularly. Therefore, the movement amount calculated by the above-mentioned formula has a meaning as a speed because the program is called regularly although the unit is a dot. Here, the fixed threshold R (111) will be derived.

If the movement speed of the cursor is less than 30 mm per second for the fine adjustment mode, and if the higher speed is for the coarse adjustment mode to give the operator an appropriate operating feeling, the dot density of the screen is within 30 mm. If 4 dots / mm, 4 × 30 dots are included. That is, if the moving speed of the cursor is v _a , then v _a = 120 dots / sec. Therefore, if the coordinate input program is called every t _s seconds, R = t _s · V _a = t _s × (30 × 4) = 120 t _s [dot] is a standard for the threshold value R (111). For example, when the coordinate input program is called every 100 _ms , R (111) = 12 [dots]. When the movement of the finger at this time is γ _a dots, the moving speed V _{a of the} finger is V _a = γ _a / t _a [dots / second]. Here, the unit of γ _a is [(actual distance of screen) /
(The length between the coordinates of that length)].

<Modified Example of Variable Moving Speed> As described above, when the coordinate input program is called every 100 _ms , the threshold value R = 12 is obtained as described above. When the movement amount is less than 12, it can be determined that the speed is less than 30 mm / _s . Therefore, the measures to be taken when the resolution of coordinate input is low will be described below. Even in such a case, the alternative position of the cursor must be able to accurately indicate a specific point for each dot. Therefore, even in the case of the touch panel 1 in which only coordinates for each n dots (n is a natural number) can be input (for example,
If the minimum width is 1 mm, the coordinate input will be every 4 dots.) If the above constant α (108) is set to "1 / n", when the input displacement is γ, the alternative position coordinate when the movement is loose Is γ / n, and in the case of the minimum movement n dots, the displacement of the alternate position coordinate is 1 dot, so that the position can be arbitrarily designated in 1 dot units.

However, in the case of the above example, an example of sampling 10 times per second (100 ms sampling rate) was shown, but it is necessary to increase the sampling rate when performing a smoother movement or when inputting a trajectory at a higher speed. There is. In this case, the displacement for each sampling becomes small, and it becomes impossible to distinguish the displacement speed from the high speed and the low speed in the above method. For example, when the sampling of each 10 m _s, R = 1.2 and will be summer, but should be the minimum 4 when the coordinate input gamma ≧ 4 per dots, gamma <R (11
The condition of 1) is satisfied only when γ = 0, and the above effect is lost. 1 in this case
As one method, the average value of the displacements in the past k samplings is calculated and stored as γ ′, and the condition of γ ′ <R may be used in step S1002.

Next, as one mode of the operation of the graphic cursor, the movement of the finger may move abruptly and largely. As a countermeasure, the control of the flow chart shown in FIG. 15 may be used instead of the flow chart shown in FIG. That is, the step
After S1001, the movement amount γ is set in step S1010. Then, in step S1011, check whether γ is "0". If it is not "0", in step S1012 the average displacement γ'is calculated by γ '← γ / β. The initial value of this parameter β (109) is set to the value “1”. When γ = 0, the average displacement γ ′ is also set to “0” in step S1014, and β (109) in step S1015.
The value of is incremented by one. By doing so, even if γ (107) suddenly increases from “0”, β (10
Since 9) is an amount commensurate with the time when γ (107) was “0”, abrupt movement can be alleviated by setting γ (107) / β (109) in step S1012. . or,
By resetting β (109) to "1" in step S1013, when γ (107) is continuously large, the displacement is compensated only at the beginning, so that the displacement γ ' Will be available from next time. The concept of the above method is shown in FIG.

By doing so, when the resolution of coordinate input is low, the displacement "0" continues, and it becomes possible to deal with the case where the displacement rapidly increases at a certain boundary.

Furthermore, in the above embodiment, the displacement γ is the threshold value R (111).
When it is smaller, the coefficient α is added to the horizontal displacement δx and the vertical displacement δy.
(108) is applied, but the coefficient α (108) is displaced by γ
Function f (γ) of step S1002 (S1002 ')
Instead of step S1003, instead of It may be. This function f (γ) As, when calling the program for each 100m _s R = 12
Becomes Therefore, the selected α may be multiplied by γ by returning any one of the plurality of α ₁ , α ₂ , ... α _k . It should be noted that if α is set to not only less than 1 but also to 1 or more, it is possible to rapidly move the finger and move the graphic cursor so as to repel it.

<Application to General Graphic> By the way, the above description of various embodiments is an example of all cursors or graphic cursors. However, the invention is not limited to application to cursors or graphics cursors. That is, it is naturally conceivable to use a general figure as a moving target. In this case, the figure to be moved is designated by using the cursor or the graphic cursor of the above-mentioned embodiment, and the designated figure is easily moved by a method similar to the above-mentioned cursor movement, that is, parallel movement. .

[Effects of the Invention] As described above, according to the present invention, it is possible to provide a display device capable of accurately moving a figure to be moved to a desired target point.

Specifically, it becomes possible to clearly recognize the pointing position of the figure (eg cursor), and the figure (eg cursor)
Do not cover the indicated position with your finger.

Further, in the conventional example, since the touch instruction area is fixed, if only the figure (eg cursor) is moved, the distance between the instructed position and the figure (eg cursor) becomes large,
Although the moving distance of the eyes becomes long and the operability is deteriorated, in the present invention, since the touch instruction region moves along with the movement of the figure (for example, the cursor), the touch instruction becomes easy.

[Brief description of drawings]

FIG. 1 is a diagram for explaining the principle of the embodiment according to the present invention, FIG. 2 is a diagram for explaining the problems of the conventional example in CAD, and FIG. 3 (a) is a block of the coordinate input / display device of the embodiment. Configuration diagram, FIG. 3 (b) is a diagram for explaining the display surface of the CRT display, FIG. 4 is a principle configuration diagram of the graphic cursor used in the embodiment, and FIG. 5 (a) to (d) are implementations. Configuration diagrams of various examples of the graphic cursor used in the examples, FIGS. 6 (a) to 6 (d) are diagrams for explaining how to perform an operation using the graphic cursor, and FIG. 7 (a) is a drawing. FIG. 7 is a diagram for explaining how the program is applied to CAD, FIGS. 7 (b) and 7 (c) are diagrams for explaining the relationship between the coordinate input program and the drawing program, and FIG. 8 is various types used for controlling the embodiment. FIG. 9 is a diagram for explaining how control information is stored in the memory, and FIG. 9 is a drawing. A flow chart of an example of the program, FIGS. 10 to 15 are flow charts of the control procedure of the embodiment, and FIG. 16 is a view for explaining the operation of the modification of the movement of the cursor. In the figure, 1 ... Touch panel, 2 ... CRT display, 4 ... C
PU, 5 ... Image memory, 6 ... Memory, 7 ... Touch panel control circuit, 9 ... Keyboard, 10 ... Cursor, 11
...... Cursor movement instruction display area, 12 …… Coordinate input instruction display area, 13 …… Coordinate input instruction input area, 14 …… Cursor movement instruction input area, 30 …… Coordinate input instruction area, 40 …… Movement instruction area, 50 …… Coordinate input instruction area, 60 …… Movement instruction area, 100,200,300,600 …… Graphic cursor, C, D
...... Cursor movement locus, P, Q, R, S …… Alternative position, 400 ……
Cursor, 401 ... Coordinate displacement detection means, 402 ... Cursor movement means, 403 ... Graphic movement means, 500 ... Cursor movement instruction area, 700 ... Movement target figure.

Claims (4)

(57) [Claims] 1. A display control means for displaying a graphic to be moved and a touch area of a predetermined size in the vicinity of the graphic on a display screen of the display means, and arranged so as to overlap the display screen. Coordinate input means having a coordinate input surface, detection means for detecting a touch-instructed position of the coordinate input means, and detection of a touch-indicated position of the coordinate input means corresponding to the touch area is detected. A display control device comprising: a movement control unit that moves the figure while maintaining the positional relationship between the figured position and the figure when the pointed position is moved. . 2. The display control device according to claim 1, wherein the graphic is a cursor graphic. 3. The display control device according to claim 1, wherein the touch area and the graphic are separated by a predetermined distance. 4. An input area for touching an input is further displayed in the vicinity of the graphic, and when it is detected that the position of the coordinate input means corresponding to the input area is touched, the cursor graphic is detected. The display control device according to claim 2, wherein the position pointed by is fetched as data.